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 | |
| 2025 September 15, Monday | 00 | 16.2 61 | 748.4 29.46 997.78 997.78 | 753.0 29.65 1003.92 1003.92 | -0.1 -0 -0.13 -0.13 | 81 | Wind blowing from the west-southwest | Near gale (17 m/s) (61 km/h) (38 miles/hour) (33 knots) (7 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 | 100%. 10/10. 8 oktas | Precipitation | 100%. 10/10. 8 oktas | 300-600 984-1968 | 7.0 4.4 | 13.0 55 | No precipitation No precipitation | 1 | |||||||||||
| September 14, Sunday | 23 | 15.9 61 | 748.5 29.47 997.92 997.92 | 753.1 29.65 1004.05 1004.05 | 0.7 0.03 0.93 0.93 | 85 | Wind blowing from the west | Near gale (14 m/s) (50 km/h) (31 mile/hour) (27 knots) (7 Bft) | 22 m/s 79 km/h 49 miles/hour 43 knots 9 Bft | 23 m/s 83 km/h 51 mile/hour 45 knots 9 Bft | 100%. 10/10. 8 oktas | Precipitation | 100%. 10/10. 8 oktas | 300-600 984-1968 | 6.0 3.7 | 13.4 56 | No precipitation No precipitation | 1 | |||||||||||
22 | 16.5 62 | 748.3 29.46 997.65 997.65 | 752.9 29.64 1003.78 1003.78 | 0.3 0.01 0.4 0.4 | 85 | Wind blowing from the west-southwest | Gale (18 m/s) (65 km/h) (40 miles/hour) (35 knots) (8 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 | 100%. 10/10. 8 oktas | Precipitation | 15.6 60 | 17.5 64 | 100%. 10/10. 8 oktas | 300-600 984-1968 | 7.0 4.4 | 13.9 57 | 5.0 0.2 | 12 | ||||||||||
21 | 16.7 62 | 748.5 29.47 997.92 997.92 | 753.1 29.65 1004.05 1004.05 | 0.2 0.01 0.27 0.27 | 88 | Wind blowing from the west-southwest | Strong breeze (13 m/s) (47 km/h) (29 miles/hour) (25 knots) (6 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 | 70 – 80%. 7/10 – 8/10. 6 oktas | Precipitation | 70 – 80%. 7/10 – 8/10. 6 oktas | 300-600 984-1968 | 8.0 5.0 | 14.6 58 | No precipitation No precipitation | 1 | ||||||||||||
20 | 16.9 62 | 747.8 29.44 996.98 996.98 | 752.4 29.62 1003.12 1003.12 | -0.7 -0.03 -0.93 -0.93 | 92 | Wind blowing from the west-southwest | Near gale (17 m/s) (61 km/h) (38 miles/hour) (33 knots) (7 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 | 100%. 10/10. 8 oktas | Rain. | 100%. 10/10. 8 oktas | 50-100 164-328 | 8.0 5.0 | 15.5 60 | 0.2 0.01 | 1 | ||||||||||||
19 | 17.2 63 | 748.0 29.45 997.25 997.25 | 752.6 29.63 1003.38 1003.38 | -0.9 -0.04 -1.2 -1.2 | 96 | Wind blowing from the south-west | Near gale (15 m/s) (54 km/h) (34 mph) (29 knots) (7 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 | 100%. 10/10. 8 oktas | Precipitation | 13.8 57 | 17.5 64 | 100%. 10/10. 8 oktas | 100-200 328-656 | 4.1 2.6 | 16.5 62 | 5.0 0.2 | 12 | ||||||||||
18 | 17.3 63 | 748.3 29.46 997.65 997.65 | 752.8 29.64 1003.65 1003.65 | -1.4 -0.06 -1.87 -1.87 | 94 | Wind blowing from the south-west | Near gale (16 m/s) (58 km/h) (36 miles/hour) (31 mile/hour) (7 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 | 100%. 10/10. 8 oktas | Precipitation | 100%. 10/10. 8 oktas | 100-200 328-656 | 6.0 3.7 | 16.4 62 | No precipitation No precipitation | 1 | ||||||||||||
17 | 17.4 63 | 748.5 29.47 997.92 997.92 | 753.1 29.65 1004.05 1004.05 | -1.9 -0.07 -2.53 -2.53 | 96 | Wind blowing from the west-southwest | Near gale (15 m/s) (54 km/h) (34 mph) (29 knots) (7 Bft) | 19 m/s 68 km/h 43 mph 37 knots 8 Bft | 19 m/s 68 km/h 43 mph 37 knots 8 Bft | 100%. 10/10. 8 oktas | Precipitation | 100%. 10/10. 8 oktas | 50-100 164-328 | 7.0 4.4 | 16.7 62 | No precipitation No precipitation | 1 | ||||||||||||
16 | 17.4 63 | 748.9 29.48 998.45 998.45 | 753.5 29.67 1004.58 1004.58 | -2.6 -0.1 -3.47 -3.47 | 97 | Wind blowing from the south-west | Near gale (14 m/s) (50 km/h) (31 mile/hour) (27 knots) (7 Bft) | 18 m/s 65 km/h 40 miles/hour 35 knots 8 Bft | 18 m/s 65 km/h 40 miles/hour 35 knots 8 Bft | 100%. 10/10. 8 oktas | Drizzle (not freezing) or snow grains. | 100%. 10/10. 8 oktas | Less than 50 Less than 50 | 6.0 3.7 | 16.9 62 | No precipitation No precipitation | 1 | ||||||||||||
15 | 16.5 62 | 749.7 29.52 999.52 999.52 | 754.3 29.7 1005.65 1005.65 | -2.8 -0.11 -3.73 -3.73 | 97 | Wind blowing from the south | Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 Bft) | 15 m/s 54 km/h 34 mph 29 knots 7 Bft | 15 m/s 54 km/h 34 mph 29 knots 7 Bft | 100%. 10/10. 8 oktas | Rain. | 100%. 10/10. 8 oktas | 50-100 164-328 | 2.7 1.7 | 16.0 61 | 4.0 0.16 | 1 | ||||||||||||
14 | 16.3 61 | 750.4 29.54 1000.45 1000.45 | 755.0 29.72 1006.58 1006.58 | -2.8 -0.11 -3.73 -3.73 | 94 | Wind blowing from the south-southeast | Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 Bft) | 13 m/s 47 km/h 29 miles/hour 25 knots 6 Bft | 14 m/s 50 km/h 31 mile/hour 27 knots 7 Bft | 100%. 10/10. 8 oktas | Rain, not freezing, slight. | 100%. 10/10. 8 oktas | 50-100 164-328 | 2.6 1.6 | 15.4 60 | 0.4 0.02 | 1 | ||||||||||||
13 | 16.2 61 | 751.5 29.59 1001.92 1001.92 | 756.1 29.77 1008.05 1008.05 | -2.2 -0.09 -2.93 -2.93 | 88 | Wind blowing from the south-southeast | Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft) | 13 m/s 47 km/h 29 miles/hour 25 knots 6 Bft | 13 m/s 47 km/h 29 miles/hour 25 knots 6 Bft | 100%. 10/10. 8 oktas | Rain, not freezing, slight. | 100%. 10/10. 8 oktas | 200-300 656-984 | 15.0 9.3 | 14.2 58 | No precipitation No precipitation | 6 | ||||||||||||
12 | 16.1 61 | 752.5 29.63 1003.25 1003.25 | 757.1 29.81 1009.38 1009.38 | -1.4 -0.06 -1.87 -1.87 | 81 | Wind blowing from the south-southeast | Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft) | 12 m/s 43 km/h 27 miles/hour 23 knots 6 Bft | 12 m/s 43 km/h 27 miles/hour 23 knots 6 Bft | 100%. 10/10. 8 oktas | Drizzle (not freezing) or snow grains. | 100%. 10/10. 8 oktas | 300-600 984-1968 | 25.0 15.5 | 12.8 55 | No precipitation No precipitation | 1 | ||||||||||||
11 | 16.0 61 | 753.2 29.65 1004.18 1004.18 | 757.8 29.83 1010.32 1010.32 | -1.4 -0.06 -1.87 -1.87 | 78 | Wind blowing from the south-southeast | Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft) | 12 m/s 43 km/h 27 miles/hour 23 knots 6 Bft | 12 m/s 43 km/h 27 miles/hour 23 knots 6 Bft | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | 300-600 984-1968 | 27.0 16.8 | 12.2 54 | No precipitation No precipitation | 1 | |||||||||||||
10 | 15.6 60 | 753.7 29.67 1004.85 1004.85 | 758.4 29.86 1011.12 1011.12 | -0.8 -0.03 -1.07 -1.07 | 74 | Wind blowing from the south-southeast | Moderate breeze (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 | 9 m/s 32 km/h 20 miles/hour 17 knots 5 Bft | 20–30%. 2/10–3/10. 2 oktas | 13.3 56 | 15.6 60 | 20–30%. 2/10–3/10. 2 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 28.0 17.4 | 11.0 52 | No precipitation No precipitation | 12 | |||||||||||
09 | 15.1 59 | 753.9 29.68 1005.12 1005.12 | 758.6 29.87 1011.38 1011.38 | -0.7 -0.03 -0.93 -0.93 | 69 | Wind blowing from the south-southeast | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 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 | no clouds no clouds no clouds | 30.0 18.6 | 9.4 49 | No precipitation No precipitation | 1 | |||||||||||||||
08 | 14.5 58 | 754.6 29.71 1006.05 1006.05 | 759.2 29.89 1012.18 1012.18 | -0.2 -0.01 -0.27 -0.27 | 72 | Wind blowing from the south | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 5 m/s 18 km/h 11 miles/hour 10 knots 3 Bft | 5 m/s 18 km/h 11 miles/hour 10 knots 3 Bft | 100%. 10/10. 8 oktas | 100%. 10/10. 8 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 27.0 16.8 | 9.5 49 | No precipitation No precipitation | 1 | |||||||||||||
07 | 13.8 57 | 754.5 29.7 1005.92 1005.92 | 759.1 29.89 1012.05 1012.05 | -0.1 -0 -0.13 -0.13 | 69 | Wind blowing from the south | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 100%. 10/10. 8 oktas | 13.3 56 | 15.5 60 | 100%. 10/10. 8 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 30.0 18.6 | 8.1 47 | 0.2 0.01 | 12 | |||||||||||||
06 | 13.7 57 | 754.6 29.71 1006.05 1006.05 | 759.3 29.89 1012.32 1012.32 | -0.4 -0.02 -0.53 -0.53 | 71 | Wind blowing from the south-west | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 4 m/s 14 km/h 9 miles/hour 8 knots 3 Bft | 4 m/s 14 km/h 9 miles/hour 8 knots 3 Bft | no clouds no clouds no clouds | 30.0 18.6 | 8.5 47 | No precipitation No precipitation | 1 | |||||||||||||||
05 | 13.7 57 | 754.8 29.72 1006.32 1006.32 | 759.4 29.9 1012.45 1012.45 | -0.1 -0 -0.13 -0.13 | 72 | Wind blowing from the west-southwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 4 m/s 14 km/h 9 miles/hour 8 knots 3 Bft | 5 m/s 18 km/h 11 miles/hour 10 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 | 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 | 8.7 48 | No precipitation No precipitation | 1 | |||||||||||||
04 | 13.9 57 | 754.6 29.71 1006.05 1006.05 | 759.4 29.9 1012.45 1012.45 | -0.2 -0.01 -0.27 -0.27 | 71 | Wind blowing from the west | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 5 m/s 18 km/h 11 miles/hour 10 knots 3 Bft | 5 m/s 18 km/h 11 miles/hour 10 knots 3 Bft | no clouds no clouds no clouds | 21.0 13.1 | 8.6 47 | No precipitation No precipitation | 1 | |||||||||||||||
03 | 14.1 57 | 755.0 29.72 1006.58 1006.58 | 759.7 29.91 1012.85 1012.85 | 0.4 0.02 0.53 0.53 | 72 | Wind blowing from the west | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 6 m/s 22 km/h 13 miles/hour 12 knots 4 Bft | 6 m/s 22 km/h 13 miles/hour 12 knots 4 Bft | no clouds no clouds no clouds | 27.0 16.8 | 9.1 48 | No precipitation No precipitation | 1 | |||||||||||||||
02 | 14.5 58 | 754.9 29.72 1006.45 1006.45 | 759.6 29.91 1012.72 1012.72 | 0.6 0.02 0.8 0.8 | 73 | Wind blowing from the west | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 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 | 40%. 4/10. 3 oktas | 40%. 4/10. 3 oktas | 600-1000 1968-3281 | 28.0 17.4 | 9.6 49 | No precipitation No precipitation | 1 | |||||||||||||
01 | 14.6 58 | 754.8 29.72 1006.32 1006.32 | 759.4 29.9 1012.45 1012.45 | 0.6 0.02 0.8 0.8 | 72 | Wind blowing from the west | Moderate breeze (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 | 9 m/s 32 km/h 20 miles/hour 17 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 | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | 600-1000 1968-3281 | 27.0 16.8 | 9.5 49 | 0.2 0.01 | 6 | |||||||||||||
00 | 14.6 58 | 754.6 29.71 1006.05 1006.05 | 759.2 29.89 1012.18 1012.18 | 0.8 0.03 1.07 1.07 | 70 | Wind blowing from the west | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 8 m/s 29 km/h 18 miles/hour 16 knots 5 Bft | 11 m/s 40 km/h 25 miles/hour 21 mile/hour 6 Bft | no clouds no clouds no clouds | 30.0 18.6 | 9.2 49 | No precipitation No precipitation | 1 | |||||||||||||||