Weather archive in the Isle of Portland
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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 August 20, Thursday | 16 | 19.6 67 | 751.1 29.57 1001.38 1001.38 | 755.7 29.75 1007.52 1007.52 | 73 | Wind blowing from the west | Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft) | 23 m/s 83 km/h 51 mile/hour 45 knots 9 Bft | 25 m/s 90 km/h 56 miles/hour 49 knots 10 Bft | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 2000-2500 6562-8202 | 22.0 13.7 | 14.6 58 | No precipitation No precipitation | 1 | |||||||||||||
10 | 18.0 64 | 750.2 29.54 1000.18 1000.18 | 754.8 29.72 1006.32 1006.32 | Wind blowing from the west | Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft) | 23 m/s 83 km/h 51 mile/hour 45 knots 9 Bft | 23 m/s 83 km/h 51 mile/hour 45 knots 9 Bft | 40%. 4/10. 3 oktas | 16.9 62 | 18.4 65 | 40%. 4/10. 3 oktas | 300-600 984-1968 | 29.0 18.0 | No precipitation No precipitation | 12 | ||||||||||||||
09 | 17.6 64 | 750.0 29.53 999.92 999.92 | 754.6 29.71 1006.05 1006.05 | Wind blowing from the west | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 21 m/s 76 km/h 47 miles/hour 41 mile/hour 9 Bft | 24 m/s 86 km/h 54 mph 47 knots 9 Bft | 100%. 10/10. 8 oktas | 100%. 10/10. 8 oktas | 300-600 984-1968 | 27.0 16.8 | No precipitation No precipitation | 1 | ||||||||||||||||
08 | 17.4 63 | 749.8 29.52 999.65 999.65 | 754.4 29.7 1005.78 1005.78 | Wind blowing from the west | Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft) | 25 m/s 90 km/h 56 miles/hour 49 knots 10 Bft | 25 m/s 90 km/h 56 miles/hour 49 knots 10 Bft | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 300-600 984-1968 | 20.0 12.4 | No precipitation No precipitation | 1 | ||||||||||||||||
07 | 17.0 63 | 749.5 29.51 999.25 999.25 | 754.1 29.69 1005.38 1005.38 | Wind blowing from the west | Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft) | 24 m/s 86 km/h 54 mph 47 knots 9 Bft | 24 m/s 86 km/h 54 mph 47 knots 9 Bft | 50%. 5/10. 4 oktas | 16.9 62 | 20.2 68 | 50%. 5/10. 4 oktas | 300-600 984-1968 | 24.0 14.9 | No precipitation No precipitation | 12 | ||||||||||||||
06 | 17.0 63 | 749.4 29.5 999.12 999.12 | 754.0 29.69 1005.25 1005.25 | Wind blowing from the west | Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft) | 24 m/s 86 km/h 54 mph 47 knots 9 Bft | 24 m/s 86 km/h 54 mph 47 knots 9 Bft | 70 – 80%. 7/10 – 8/10. 6 oktas | 70 – 80%. 7/10 – 8/10. 6 oktas | 300-600 984-1968 | 27.0 16.8 | No precipitation No precipitation | 1 | ||||||||||||||||
05 | 17.1 63 | 749.5 29.51 999.25 999.25 | 754.2 29.69 1005.52 1005.52 | Wind blowing from the west | Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft) | 21 m/s 76 km/h 47 miles/hour 41 mile/hour 9 Bft | 24 m/s 86 km/h 54 mph 47 knots 9 Bft | 40%. 4/10. 3 oktas | 40%. 4/10. 3 oktas | 300-600 984-1968 | 23.0 14.3 | No precipitation No precipitation | 1 | ||||||||||||||||
04 | 17.3 63 | 749.6 29.51 999.38 999.38 | 754.2 29.69 1005.52 1005.52 | Wind blowing from the west | Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft) | 23 m/s 83 km/h 51 mile/hour 45 knots 9 Bft | 27 m/s 97 km/h 60 miles/hour 52 knots 10 Bft | 100%. 10/10. 8 oktas | 100%. 10/10. 8 oktas | 300-600 984-1968 | 24.0 14.9 | No precipitation No precipitation | 1 | ||||||||||||||||
03 | 17.4 63 | 749.7 29.52 999.52 999.52 | 754.3 29.7 1005.65 1005.65 | Wind blowing from the west | Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft) | 24 m/s 86 km/h 54 mph 47 knots 9 Bft | 25 m/s 90 km/h 56 miles/hour 49 knots 10 Bft | 100%. 10/10. 8 oktas | 100%. 10/10. 8 oktas | 300-600 984-1968 | 24.0 14.9 | No precipitation No precipitation | 1 | ||||||||||||||||
02 | 17.6 64 | 749.8 29.52 999.65 999.65 | 754.3 29.7 1005.65 1005.65 | Wind blowing from the west | Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 Bft) | 28 m/s 101 km/h 63 mph 54 knots 10 Bft | no clouds no clouds no clouds | 22.0 13.7 | No precipitation No precipitation | 1 | |||||||||||||||||||
01 | 17.9 64 | 749.9 29.52 999.78 999.78 | 754.5 29.7 1005.92 1005.92 | Wind blowing from the west | Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 Bft) | 27 m/s 97 km/h 60 miles/hour 52 knots 10 Bft | 100%. 10/10. 8 oktas | 100%. 10/10. 8 oktas | 300-600 984-1968 | 25.0 15.5 | No precipitation No precipitation | 6 | |||||||||||||||||
00 | 17.8 64 | 750.1 29.53 1000.05 1000.05 | 754.7 29.71 1006.18 1006.18 | Wind blowing from the west | Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft) | 26 m/s 94 km/h 58 miles/hour 51 mile/hour 10 Bft | 26 m/s 94 km/h 58 miles/hour 51 mile/hour 10 Bft | 70 – 80%. 7/10 – 8/10. 6 oktas | 70 – 80%. 7/10 – 8/10. 6 oktas | 300-600 984-1968 | 27.0 16.8 | No precipitation No precipitation | 1 | ||||||||||||||||
| August 19, Wednesday | 23 | 18.0 64 | 750.2 29.54 1000.18 1000.18 | 754.8 29.72 1006.32 1006.32 | Wind blowing from the west | Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft) | 22 m/s 79 km/h 49 miles/hour 43 knots 9 Bft | 26 m/s 94 km/h 58 miles/hour 51 mile/hour 10 Bft | 50%. 5/10. 4 oktas | 50%. 5/10. 4 oktas | 600-1000 1968-3281 | 27.0 16.8 | No precipitation No precipitation | 1 | |||||||||||||||
22 | 18.4 65 | 750.3 29.54 1000.32 1000.32 | 754.9 29.72 1006.45 1006.45 | Wind blowing from the west | Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft) | 25 m/s 90 km/h 56 miles/hour 49 knots 10 Bft | 26 m/s 94 km/h 58 miles/hour 51 mile/hour 10 Bft | 40%. 4/10. 3 oktas | 16.7 62 | 21.2 70 | 40%. 4/10. 3 oktas | 600-1000 1968-3281 | 25.0 15.5 | No precipitation No precipitation | 12 | ||||||||||||||
21 | 18.8 66 | 750.0 29.53 999.92 999.92 | 754.6 29.71 1006.05 1006.05 | Wind blowing from the west | Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft) | 24 m/s 86 km/h 54 mph 47 knots 9 Bft | 25 m/s 90 km/h 56 miles/hour 49 knots 10 Bft | 20–30%. 2/10–3/10. 2 oktas | 20–30%. 2/10–3/10. 2 oktas | 1000-1500 3281-4921 | 28.0 17.4 | No precipitation No precipitation | 1 | ||||||||||||||||
20 | 19.5 67 | 749.8 29.52 999.65 999.65 | 754.4 29.7 1005.78 1005.78 | Wind blowing from the west | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 20 m/s 72 km/h 45 miles/hour 39 knots 8 Bft | 23 m/s 83 km/h 51 mile/hour 45 knots 9 Bft | no clouds no clouds no clouds | 29.0 18.0 | No precipitation No precipitation | 1 | ||||||||||||||||||
19 | 20.2 68 | 749.7 29.52 999.52 999.52 | 754.2 29.69 1005.52 1005.52 | Wind blowing from the west | Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft) | 24 m/s 86 km/h 54 mph 47 knots 9 Bft | 30 m/s 108 km/h 67 miles/hour 58 knots 11 Bft | 20–30%. 2/10–3/10. 2 oktas | 15.7 60 | 21.2 70 | 20–30%. 2/10–3/10. 2 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 30.0 18.6 | 5.0 0.2 | 12 | ||||||||||||||
18 | 20.4 69 | 749.5 29.51 999.25 999.25 | 754.0 29.69 1005.25 1005.25 | Wind blowing from the west | Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 Bft) | 28 m/s 101 km/h 63 mph 54 knots 10 Bft | 20–30%. 2/10–3/10. 2 oktas | 20–30%. 2/10–3/10. 2 oktas | 1000-1500 3281-4921 | 30.0 18.6 | No precipitation No precipitation | 1 | |||||||||||||||||
17 | 20.9 70 | 749.6 29.51 999.38 999.38 | 754.2 29.69 1005.52 1005.52 | Wind blowing from the west-southwest | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 17 m/s 61 km/h 38 miles/hour 33 knots 7 Bft | 21 m/s 76 km/h 47 miles/hour 41 mile/hour 9 Bft | no clouds no clouds no clouds | 50.0 31.1 | No precipitation No precipitation | 1 | ||||||||||||||||||
16 | 20.3 69 | 749.6 29.51 999.38 999.38 | 754.1 29.69 1005.38 1005.38 | Wind blowing from the west-southwest | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 21 m/s 76 km/h 47 miles/hour 41 mile/hour 9 Bft | 21 m/s 76 km/h 47 miles/hour 41 mile/hour 9 Bft | 40%. 4/10. 3 oktas | 40%. 4/10. 3 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 35.0 21.8 | No precipitation No precipitation | 1 | ||||||||||||||||