Weather archive in Santa Rosa
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| Date / Local time | T | Po | P | Pa | U | DD | Ff | ff10 | ff3 | N | WW | W1 | W2 | Tn | Tx | Cl | Nh | H | Cm | Ch | VV | Td | RRR | tR | E | Tg | E' | sss | |
| 2026 September 25, Friday | 01 | 13.0 55 | 739.7 29.12 986.19 986.19 | 756.3 29.78 1008.32 1008.32 | 1.0 0.04 1.33 1.33 | 72 | Wind blowing from the east-southeast | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 50%. 5/10. 4 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 50%. 5/10. 4 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 30.0 18.6 | 8.0 46 | |||||||||||||
00 | 15.2 59 | 739.9 29.13 986.45 986.45 | 756.5 29.78 1008.58 1008.58 | 2.7 0.11 3.6 3.6 | 62 | Wind blowing from the west-southwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 30.0 18.6 | 7.9 46 | ||||||||||||||
| September 24, Thursday | 23 | 16.5 62 | 739.6 29.12 986.05 986.05 | 756.2 29.77 1008.18 1008.18 | 4.4 0.17 5.87 5.87 | 54 | Wind blowing from the south-southwest | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | Dust or sand raised by wind at or near the station at the time of observation, but no well-developed dust whirl(s) or sand whirl(s), and no duststorm or sandstorm seen; or, in the case of ships, blowing spray at the station. | Cloud covering 1/2 or less of the sky throughout the appropriate period. | Cloud covering 1/2 or less of the sky throughout the appropriate period. | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 30.0 18.6 | 7.2 45 | ||||||||||
22 | 18.6 65 | 738.7 29.08 984.85 984.85 | 755.4 29.74 1007.12 1007.12 | 3.9 0.15 5.2 5.2 | 47 | Wind blowing from the south | Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft) | 20–30%. 2/10–3/10. 2 oktas | Dust or sand raised by wind at or near the station at the time of observation, but no well-developed dust whirl(s) or sand whirl(s), and no duststorm or sandstorm seen; or, in the case of ships, blowing spray at the station. | Cloud covering 1/2 or less of the sky throughout the appropriate period. | Cloud covering 1/2 or less of the sky throughout the appropriate period. | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus. | 7.0 4.4 | 7.0 45 | |||||||||||
21 | 22.0 72 | 737.2 29.02 982.85 982.85 | 753.8 29.68 1004.98 1004.98 | 2.6 0.1 3.47 3.47 | 31 | Wind blowing from the south | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 50%. 5/10. 4 oktas | Dust or sand raised by wind at or near the station at the time of observation, but no well-developed dust whirl(s) or sand whirl(s), and no duststorm or sandstorm seen; or, in the case of ships, blowing spray at the station. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period. | 14.8 59 | 29.6 85 | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 20–30%. 2/10–3/10. 2 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 4.0 2.5 | 4.1 39 | No precipitation No precipitation | 6 | |||||||
20 | 21.6 71 | 735.2 28.94 980.19 980.19 | 751.9 29.6 1002.45 1002.45 | 1.0 0.04 1.33 1.33 | 39 | Wind blowing from the north | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 50%. 5/10. 4 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 8.0 5.0 | 6.9 44 | ||||||||||||||
19 | 24.9 77 | 734.8 28.93 979.65 979.65 | 751.3 29.58 1001.65 1001.65 | -0.1 -0 -0.13 -0.13 | 31 | Wind blowing from the south-west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 50%. 5/10. 4 oktas | Widespread dust in suspension in the air, not raised by wind at or near the station at the time of observation. | Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period. | Cloud covering 1/2 or less of the sky throughout the appropriate period. | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 50%. 5/10. 4 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 7.0 4.4 | 6.7 44 | |||||||||||
18 | 27.5 82 | 734.6 28.92 979.39 979.39 | 751.0 29.57 1001.25 1001.25 | -0.6 -0.02 -0.8 -0.8 | 24 | Wind blowing from the west-southwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 20–30%. 2/10–3/10. 2 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 20–30%. 2/10–3/10. 2 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 30.0 18.6 | 5.3 42 | ||||||||||||||
17 | 27.7 82 | 734.2 28.91 978.85 978.85 | 750.6 29.55 1000.72 1000.72 | -1.5 -0.06 -2 -2 | 26 | Wind blowing from the west-northwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 20–30%. 2/10–3/10. 2 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 6.6 44 | ||||||||||||||
16 | 27.0 81 | 734.9 28.93 979.79 979.79 | 751.3 29.58 1001.65 1001.65 | -1.4 -0.06 -1.87 -1.87 | 21 | Wind blowing from the west-southwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 100%. 10/10. 8 oktas | Stratocumulus other than Stratocumulus cumulogenitus. | 50%. 5/10. 4 oktas | 1000-1500 3281-4921 | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus. | 30.0 18.6 | 2.6 37 | ||||||||||||||
15 | 27.6 82 | 735.2 28.94 980.19 980.19 | 751.6 29.59 1002.05 1002.05 | -1.8 -0.07 -2.4 -2.4 | 20 | Wind blowing from the west-southwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 100%. 10/10. 8 oktas | Stratocumulus other than Stratocumulus cumulogenitus. | 50%. 5/10. 4 oktas | 1000-1500 3281-4921 | No Altocumulus, Altostratus or Nimbostratus. | Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus. | 30.0 18.6 | 2.8 37 | No precipitation No precipitation | 6 | ||||||||||||
14 | 28.7 84 | 735.7 28.96 980.85 980.85 | 752.1 29.61 1002.72 1002.72 | -1.6 -0.06 -2.13 -2.13 | 20 | Wind blowing from the west | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 100%. 10/10. 8 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 40%. 4/10. 3 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus. | 30.0 18.6 | 3.7 39 | ||||||||||||||
13 | 28.7 84 | 736.3 28.99 981.65 981.65 | 752.7 29.63 1003.52 1003.52 | -1.3 -0.05 -1.73 -1.73 | 21 | Wind blowing from the west-northwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 40%. 4/10. 3 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 4.4 40 | ||||||||||||||
12 | 26.1 79 | 737.0 29.02 982.59 982.59 | 753.4 29.66 1004.45 1004.45 | -0.3 -0.01 -0.4 -0.4 | 32 | Wind blowing from the west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 60%. 6/10. 5 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 20–30%. 2/10–3/10. 2 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 8.1 47 | ||||||||||||||
11 | 20.8 69 | 737.3 29.03 982.99 982.99 | 754.0 29.69 1005.25 1005.25 | 0.3 0.01 0.4 0.4 | 45 | Wind blowing from the west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 50%. 5/10. 4 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus. | 30.0 18.6 | 8.3 47 | ||||||||||||||
10 | 17.3 63 | 737.6 29.04 983.39 983.39 | 754.3 29.7 1005.65 1005.65 | 0.9 0.04 1.2 1.2 | 55 | Wind blowing from the west-northwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 50%. 5/10. 4 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 8.2 47 | ||||||||||||||
09 | 14.8 59 | 737.3 29.03 982.99 982.99 | 754.2 29.69 1005.52 1005.52 | 0.7 0.03 0.93 0.93 | 61 | Wind blowing from the north-west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | 12.9 55 | 17.3 63 | Stratocumulus other than Stratocumulus cumulogenitus. | 60%. 6/10. 5 oktas | 1000-1500 3281-4921 | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 7.4 45 | ||||||||||||
08 | 13.9 57 | 737.0 29.02 982.59 982.59 | 753.7 29.67 1004.85 1004.85 | 0.0 0 0 0 | 63 | Wind blowing from the north-northwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 100%. 10/10. 8 oktas | Stratocumulus other than Stratocumulus cumulogenitus. | 50%. 5/10. 4 oktas | 1000-1500 3281-4921 | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 7.0 45 | ||||||||||||||
07 | 13.8 57 | 736.7 29 982.19 982.19 | 753.4 29.66 1004.45 1004.45 | -0.3 -0.01 -0.4 -0.4 | 64 | Wind blowing from the north-west | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 100%. 10/10. 8 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 7.1 45 | ||||||||||||||
06 | 14.0 57 | 736.6 29 982.05 982.05 | 753.3 29.66 1004.32 1004.32 | -1.2 -0.05 -1.6 -1.6 | 63 | Wind blowing from the north-northwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 100%. 10/10. 8 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 100%. 10/10. 8 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | 30.0 18.6 | 7.1 45 | |||||||||||||||
05 | 14.2 58 | 737.0 29.02 982.59 982.59 | 753.7 29.67 1004.85 1004.85 | -1.2 -0.05 -1.6 -1.6 | 64 | Wind blowing from the north-west | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 100%. 10/10. 8 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 100%. 10/10. 8 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | 30.0 18.6 | 7.4 45 | |||||||||||||||
04 | 14.7 58 | 737.0 29.02 982.59 982.59 | 753.7 29.67 1004.85 1004.85 | -1.7 -0.07 -2.27 -2.27 | 58 | Wind blowing from the north-northwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 100%. 10/10. 8 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 100%. 10/10. 8 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | 30.0 18.6 | 6.5 44 | |||||||||||||||
03 | 14.5 58 | 737.8 29.05 983.65 983.65 | 754.4 29.7 1005.78 1005.78 | -1.2 -0.05 -1.6 -1.6 | 62 | Wind blowing from the north-northwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 100%. 10/10. 8 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 60%. 6/10. 5 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 7.3 45 | No precipitation No precipitation | 6 | ||||||||||||
02 | 16.1 61 | 738.2 29.06 984.19 984.19 | 754.9 29.72 1006.45 1006.45 | -1.2 -0.05 -1.6 -1.6 | 55 | Wind blowing from the north-northwest | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 100%. 10/10. 8 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 100%. 10/10. 8 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | 30.0 18.6 | 7.1 45 | |||||||||||||||
01 | 16.8 62 | 738.7 29.08 984.85 984.85 | 755.4 29.74 1007.12 1007.12 | -0.7 -0.03 -0.93 -0.93 | 52 | Wind blowing from the north-northwest | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 100%. 10/10. 8 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 100%. 10/10. 8 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | 30.0 18.6 | 6.8 44 | |||||||||||||||