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 11, Tuesday | 21 | 19.1 66 | 761.5 29.98 1015.25 1015.25 | 766.1 30.16 1021.38 1021.38 | Wind blowing from the east | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 16 m/s 58 km/h 36 miles/hour 31 mile/hour 7 Bft | 16 m/s 58 km/h 36 miles/hour 31 mile/hour 7 Bft | no clouds no clouds no clouds | 24.0 14.9 | No precipitation No precipitation | 1 | |||||||||||||||||
20 | 19.5 67 | 761.6 29.98 1015.38 1015.38 | 766.2 30.17 1021.52 1021.52 | Wind blowing from the east | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 16 m/s 58 km/h 36 miles/hour 31 mile/hour 7 Bft | 17 m/s 61 km/h 38 miles/hour 33 knots 7 Bft | 50%. 5/10. 4 oktas | 50%. 5/10. 4 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 29.0 18.0 | No precipitation No precipitation | 1 | ||||||||||||||||
19 | 20.5 69 | 761.6 29.98 1015.38 1015.38 | 766.2 30.17 1021.52 1021.52 | Wind blowing from the east | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 16 m/s 58 km/h 36 miles/hour 31 mile/hour 7 Bft | 19 m/s 68 km/h 43 mph 37 knots 8 Bft | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 18.9 66 | 22.8 73 | 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. | 28.0 17.4 | No precipitation No precipitation | 12 | ||||||||||||||
18 | 21.3 70 | 761.5 29.98 1015.25 1015.25 | 766.1 30.16 1021.38 1021.38 | Wind blowing from the east | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 18 m/s 65 km/h 40 miles/hour 35 knots 8 Bft | 20 m/s 72 km/h 45 miles/hour 39 knots 8 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 | ||||||||||||||||
17 | 22.0 72 | 761.9 30 1015.78 1015.78 | 766.6 30.18 1022.05 1022.05 | Wind blowing from the east-southeast | Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft) | 20 m/s 72 km/h 45 miles/hour 39 knots 8 Bft | 21 m/s 76 km/h 47 miles/hour 41 mile/hour 9 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 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 35.0 21.8 | No precipitation No precipitation | 1 | ||||||||||||||||
16 | 22.4 72 | 762.3 30.01 1016.32 1016.32 | 766.9 30.19 1022.45 1022.45 | Wind blowing from the east | 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 | 24 m/s 86 km/h 54 mph 47 knots 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 | ||||||||||||||||
15 | 22.0 72 | 762.3 30.01 1016.32 1016.32 | 766.9 30.19 1022.45 1022.45 | Wind blowing from the east | Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 Bft) | 26 m/s 94 km/h 58 miles/hour 51 mile/hour 10 Bft | 20–30%. 2/10–3/10. 2 oktas | 20–30%. 2/10–3/10. 2 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 30.0 18.6 | No precipitation No precipitation | 1 | |||||||||||||||||
14 | 22.3 72 | 762.6 30.02 1016.72 1016.72 | 767.2 30.2 1022.85 1022.85 | Wind blowing from the east | 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 | 50%. 5/10. 4 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 30.0 18.6 | No precipitation No precipitation | 1 | ||||||||||||||||
13 | 22.3 72 | 762.7 30.03 1016.85 1016.85 | 767.3 30.21 1022.98 1022.98 | Wind blowing from the east | 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 | 20–30%. 2/10–3/10. 2 oktas | 20–30%. 2/10–3/10. 2 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 30.0 18.6 | No precipitation No precipitation | 6 | ||||||||||||||||
12 | 21.9 71 | 762.7 30.03 1016.85 1016.85 | 767.3 30.21 1022.98 1022.98 | Wind blowing from the east | 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 | 50%. 5/10. 4 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 30.0 18.6 | No precipitation No precipitation | 1 | ||||||||||||||||
11 | 22.1 72 | 763.0 30.04 1017.25 1017.25 | 767.5 30.22 1023.25 1023.25 | Wind blowing from the east | 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 | 22 m/s 79 km/h 49 miles/hour 43 knots 9 Bft | no clouds no clouds no clouds | 25.0 15.5 | No precipitation No precipitation | 1 | ||||||||||||||||||
10 | 21.8 71 | 762.8 30.03 1016.98 1016.98 | 767.5 30.22 1023.25 1023.25 | Wind blowing from the east | 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 | 22 m/s 79 km/h 49 miles/hour 43 knots 9 Bft | 60%. 6/10. 5 oktas | 17.4 63 | 21.8 71 | 60%. 6/10. 5 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 29.0 18.0 | No precipitation No precipitation | 12 | ||||||||||||||
09 | 20.8 69 | 762.7 30.03 1016.85 1016.85 | 767.2 30.2 1022.85 1022.85 | Wind blowing from the east | 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 | 22 m/s 79 km/h 49 miles/hour 43 knots 9 Bft | 20–30%. 2/10–3/10. 2 oktas | 20–30%. 2/10–3/10. 2 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 26.0 16.2 | No precipitation No precipitation | 1 | ||||||||||||||||
08 | 19.8 68 | 762.5 30.02 1016.58 1016.58 | 767.2 30.2 1022.85 1022.85 | Wind blowing from the east | 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 | no clouds no clouds no clouds | 26.0 16.2 | No precipitation No precipitation | 1 | ||||||||||||||||||
07 | 18.9 66 | 762.3 30.01 1016.32 1016.32 | 766.9 30.19 1022.45 1022.45 | Wind blowing from the east | 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 | no clouds no clouds no clouds | 17.4 63 | 20.6 69 | 27.0 16.8 | No precipitation No precipitation | 12 | ||||||||||||||||
06 | 18.4 65 | 762.2 30.01 1016.18 1016.18 | 766.9 30.19 1022.45 1022.45 | Wind blowing from the east | 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 | 21 m/s 76 km/h 47 miles/hour 41 mile/hour 9 Bft | no clouds no clouds no clouds | 21.0 13.1 | No precipitation No precipitation | 1 | ||||||||||||||||||
05 | 18.4 65 | 762.0 30 1015.92 1015.92 | 766.6 30.18 1022.05 1022.05 | Wind blowing from the east-southeast | 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 | 20 m/s 72 km/h 45 miles/hour 39 knots 8 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 | 200-300 656-984 | 17.0 10.6 | No precipitation No precipitation | 1 | ||||||||||||||||
04 | 18.5 65 | 762.0 30 1015.92 1015.92 | 766.6 30.18 1022.05 1022.05 | Wind blowing from the east-southeast | 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 | 20 m/s 72 km/h 45 miles/hour 39 knots 8 Bft | no clouds no clouds no clouds | 18.0 11.2 | No precipitation No precipitation | 1 | ||||||||||||||||||
03 | 18.9 66 | 762.0 30 1015.92 1015.92 | 766.6 30.18 1022.05 1022.05 | Wind blowing from the east-southeast | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 16 m/s 58 km/h 36 miles/hour 31 mile/hour 7 Bft | 16 m/s 58 km/h 36 miles/hour 31 mile/hour 7 Bft | 20–30%. 2/10–3/10. 2 oktas | 20–30%. 2/10–3/10. 2 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 35.0 21.8 | No precipitation No precipitation | 1 | ||||||||||||||||
02 | 17.4 63 | 761.8 29.99 1015.65 1015.65 | 766.5 30.18 1021.92 1021.92 | Wind blowing from the east-northeast | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 7 m/s 25 km/h 16 miles/hour 14 knots 4 Bft | 7 m/s 25 km/h 16 miles/hour 14 knots 4 Bft | no clouds no clouds no clouds | 45.0 28.0 | No precipitation No precipitation | 1 | ||||||||||||||||||
01 | 19.1 66 | 761.8 29.99 1015.65 1015.65 | 766.4 30.17 1021.78 1021.78 | 1 | Wind blowing from the north | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 7 m/s 25 km/h 16 miles/hour 14 knots 4 Bft | 7 m/s 25 km/h 16 miles/hour 14 knots 4 Bft | no clouds no clouds no clouds | 45.0 28.0 | -37.7 -36 | No precipitation No precipitation | 6 | ||||||||||||||||
00 | 18.7 66 | 761.6 29.98 1015.38 1015.38 | 766.3 30.17 1021.65 1021.65 | 1 | Wind blowing from the north-northwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 7 m/s 25 km/h 16 miles/hour 14 knots 4 Bft | 9 m/s 32 km/h 20 miles/hour 17 knots 5 Bft | no clouds no clouds no clouds | 50.0 31.1 | -37.6 -36 | No precipitation No precipitation | 1 | ||||||||||||||||
| August 10, Monday | 23 | 18.4 65 | 761.5 29.98 1015.25 1015.25 | 766.1 30.16 1021.38 1021.38 | 89 | Wind blowing from the north-northwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 8 m/s 29 km/h 18 miles/hour 16 knots 5 Bft | 8 m/s 29 km/h 18 miles/hour 16 knots 5 Bft | 70 – 80%. 7/10 – 8/10. 6 oktas | 70 – 80%. 7/10 – 8/10. 6 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 30.0 18.6 | 16.5 62 | No precipitation No precipitation | 1 | |||||||||||||
22 | 18.5 65 | 761.5 29.98 1015.25 1015.25 | 766.2 30.17 1021.52 1021.52 | 87 | Wind blowing from the north-northwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 7 m/s 25 km/h 16 miles/hour 14 knots 4 Bft | 8 m/s 29 km/h 18 miles/hour 16 knots 5 Bft | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | 18.5 65 | 23.4 74 | 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. | 30.0 18.6 | 16.3 61 | No precipitation No precipitation | 12 | ||||||||||||
21 | 18.9 66 | 761.2 29.97 1014.85 1014.85 | 765.9 30.15 1021.12 1021.12 | 84 | Wind blowing from the north-northwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 9 m/s 32 km/h 20 miles/hour 17 knots 5 Bft | 9 m/s 32 km/h 20 miles/hour 17 knots 5 Bft | 70 – 80%. 7/10 – 8/10. 6 oktas | 70 – 80%. 7/10 – 8/10. 6 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 27.0 16.8 | 16.1 61 | No precipitation No precipitation | 1 | ||||||||||||||