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 December 7, Sunday | 12 | 13.4 56 | 744.4 29.31 992.45 992.45 | 749.0 29.49 998.58 998.58 | -0.9 -0.04 -1.2 -1.2 | 97 | Wind blowing from the south-west | 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 | 17 m/s 61 km/h 38 miles/hour 33 knots 7 Bft | 100%. 10/10. 8 oktas | Rain, not freezing, slight. | 100%. 10/10. 8 oktas | 100-200 328-656 | 3.9 2.4 | 13.0 55 | 4.0 0.16 | 6 | |||||||||||
11 | 13.2 56 | 744.9 29.33 993.12 993.12 | 749.5 29.51 999.25 999.25 | -0.1 -0 -0.13 -0.13 | 97 | Wind blowing from the south-west | Strong breeze (12 m/s) (43 km/h) (27 miles/hour) (23 knots) (6 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 | 100%. 10/10. 8 oktas | Precipitation | 100%. 10/10. 8 oktas | 50-100 164-328 | 2.5 1.6 | 12.8 55 | 0.6 0.02 | 1 | ||||||||||||
10 | 13.3 56 | 745.2 29.34 993.52 993.52 | 749.8 29.52 999.65 999.65 | 0.2 0.01 0.27 0.27 | 97 | Wind blowing from the south-west | Strong breeze (13 m/s) (47 km/h) (29 miles/hour) (25 knots) (6 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 | 100%. 10/10. 8 oktas | Drizzle (not freezing) or snow grains. | 100%. 10/10. 8 oktas | 50-100 164-328 | 7.0 4.4 | 12.9 55 | No precipitation No precipitation | 1 | ||||||||||||
09 | 13.1 56 | 745.3 29.34 993.65 993.65 | 749.9 29.52 999.78 999.78 | -0.1 -0 -0.13 -0.13 | 97 | Wind blowing from the west-southwest | Strong breeze (12 m/s) (43 km/h) (27 miles/hour) (23 knots) (6 Bft) | 14 m/s 50 km/h 31 mile/hour 27 knots 7 Bft | 15 m/s 54 km/h 34 mph 29 knots 7 Bft | 100%. 10/10. 8 oktas | Drizzle, not freezing, heavy. | 10.7 51 | 13.1 56 | 100%. 10/10. 8 oktas | Less than 50 Less than 50 | 1.7 1.1 | 12.7 55 | 7.0 0.28 | 12 | ||||||||||
08 | 13.0 55 | 745.0 29.33 993.25 993.25 | 749.7 29.52 999.52 999.52 | -0.9 -0.04 -1.2 -1.2 | 97 | Wind blowing from the west-southwest | Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 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. | 100%. 10/10. 8 oktas | Less than 50 Less than 50 | 0.5 0.3 | 12.6 55 | 0.6 0.02 | 1 | ||||||||||||
07 | 12.9 55 | 745.0 29.33 993.25 993.25 | 749.7 29.52 999.52 999.52 | -1.6 -0.06 -2.13 -2.13 | 97 | Wind blowing from the west-southwest | Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft) | 11 m/s 40 km/h 25 miles/hour 21 mile/hour 6 Bft | 12 m/s 43 km/h 27 miles/hour 23 knots 6 Bft | 100%. 10/10. 8 oktas | Drizzle. | 100%. 10/10. 8 oktas | 50-100 164-328 | 2.4 1.5 | 12.5 55 | 1.0 0.04 | 1 | ||||||||||||
06 | 11.6 53 | 745.4 29.35 993.79 993.79 | 750.1 29.53 1000.05 1000.05 | -2.1 -0.08 -2.8 -2.8 | 97 | Wind blowing from the south-southeast | Fresh breeze (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 | 12 m/s 43 km/h 27 miles/hour 23 knots 6 Bft | 100%. 10/10. 8 oktas | Rain, not freezing, slight. | 10.7 51 | 12.0 54 | 100%. 10/10. 8 oktas | 50-100 164-328 | 2.4 1.5 | 11.2 52 | 6.0 0.24 | 12 | ||||||||||
05 | 11.5 53 | 745.9 29.37 994.45 994.45 | 750.6 29.55 1000.72 1000.72 | -2.1 -0.08 -2.8 -2.8 | 97 | Wind blowing from the south-southeast | Fresh breeze (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 | 11 m/s 40 km/h 25 miles/hour 21 mile/hour 6 Bft | 100%. 10/10. 8 oktas | Rain, not freezing, slight. | 100%. 10/10. 8 oktas | 50-100 164-328 | 4.6 2.9 | 11.0 52 | 1.0 0.04 | 1 | ||||||||||||
04 | 11.6 53 | 746.6 29.39 995.39 995.39 | 751.3 29.58 1001.65 1001.65 | -1.7 -0.07 -2.27 -2.27 | 96 | Wind blowing from the south | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 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 | 100%. 10/10. 8 oktas | Rain, not freezing, slight. | 100%. 10/10. 8 oktas | 50-100 164-328 | 4.3 2.7 | 11.0 52 | 1.0 0.04 | 1 | ||||||||||||
03 | 11.5 53 | 747.5 29.43 996.58 996.58 | 752.2 29.61 1002.85 1002.85 | -1.0 -0.04 -1.33 -1.33 | 95 | Wind blowing from the south | 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 | 100%. 10/10. 8 oktas | Rain, not freezing, slight. | 100%. 10/10. 8 oktas | 100-200 328-656 | 2.9 1.8 | 10.7 51 | 1.0 0.04 | 1 | ||||||||||||
02 | 11.9 53 | 748.0 29.45 997.25 997.25 | 752.7 29.63 1003.52 1003.52 | -0.3 -0.01 -0.4 -0.4 | 92 | Wind blowing from the south-southwest | 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 | 7 m/s 25 km/h 16 miles/hour 14 knots 4 Bft | 100%. 10/10. 8 oktas | Rain. | 100%. 10/10. 8 oktas | 200-300 656-984 | 8.0 5.0 | 10.6 51 | No precipitation No precipitation | 1 | ||||||||||||
01 | 11.6 53 | 748.3 29.46 997.65 997.65 | 753.0 29.65 1003.92 1003.92 | 0.1 0 0.13 0.13 | 90 | Wind blowing from the west-southwest | Gentle breeze (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 | 9 m/s 32 km/h 20 miles/hour 17 knots 5 Bft | 100%. 10/10. 8 oktas | 100%. 10/10. 8 oktas | 300-600 984-1968 | 12.0 7.5 | 10.0 50 | No precipitation No precipitation | 1 | |||||||||||||
00 | 11.7 53 | 748.5 29.47 997.92 997.92 | 753.2 29.65 1004.18 1004.18 | 0.5 0.02 0.67 0.67 | 89 | Wind blowing from the west-southwest | 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 | 11 m/s 40 km/h 25 miles/hour 21 mile/hour 6 Bft | 100%. 10/10. 8 oktas | 100%. 10/10. 8 oktas | 600-1000 1968-3281 | 11.0 6.8 | 9.9 50 | No precipitation No precipitation | 6 | |||||||||||||
| December 6, Saturday | 23 | 11.8 53 | 748.3 29.46 997.65 997.65 | 753.1 29.65 1004.05 1004.05 | 0.7 0.03 0.93 0.93 | 87 | Wind blowing from the west-southwest | Fresh breeze (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 | 12 m/s 43 km/h 27 miles/hour 23 knots 6 Bft | 100%. 10/10. 8 oktas | Mist. | 100%. 10/10. 8 oktas | 1000-1500 3281-4921 | 9.0 5.6 | 9.7 49 | No precipitation No precipitation | 1 | |||||||||||
22 | 11.3 52 | 748.2 29.46 997.52 997.52 | 752.8 29.64 1003.65 1003.65 | 1.0 0.04 1.33 1.33 | 89 | Wind blowing from the west | Fresh breeze (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 | 15 m/s 54 km/h 34 mph 29 knots 7 Bft | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | Precipitation | 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 | 7.0 4.4 | 9.5 49 | No precipitation No precipitation | 1 | ||||||||||||
21 | 10.7 51 | 748.0 29.45 997.25 997.25 | 752.6 29.63 1003.38 1003.38 | 0.8 0.03 1.07 1.07 | 86 | Wind blowing from the west | Strong breeze (13 m/s) (47 km/h) (29 miles/hour) (25 knots) (6 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 | Rain. | 10.7 51 | 12.6 55 | 100%. 10/10. 8 oktas | 600-1000 1968-3281 | 11.0 6.8 | 8.5 47 | No precipitation No precipitation | 12 | ||||||||||
20 | 11.8 53 | 747.6 29.43 996.72 996.72 | 752.2 29.61 1002.85 1002.85 | 1.1 0.04 1.47 1.47 | 82 | Wind blowing from the west | Strong breeze (12 m/s) (43 km/h) (27 miles/hour) (23 knots) (6 Bft) | 17 m/s 61 km/h 38 miles/hour 33 knots 7 Bft | 17 m/s 61 km/h 38 miles/hour 33 knots 7 Bft | 50%. 5/10. 4 oktas | Mist. | 50%. 5/10. 4 oktas | 300-600 984-1968 | 6.0 3.7 | 8.8 48 | No precipitation No precipitation | 1 | ||||||||||||
19 | 11.9 53 | 747.2 29.42 996.18 996.18 | 751.9 29.6 1002.45 1002.45 | 1.3 0.05 1.73 1.73 | 78 | Wind blowing from the west | Strong breeze (12 m/s) (43 km/h) (27 miles/hour) (23 knots) (6 Bft) | 17 m/s 61 km/h 38 miles/hour 33 knots 7 Bft | 17 m/s 61 km/h 38 miles/hour 33 knots 7 Bft | 100%. 10/10. 8 oktas | Mist. | 100%. 10/10. 8 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 8.0 5.0 | 8.2 47 | No precipitation No precipitation | 1 | ||||||||||||
18 | 11.6 53 | 747.2 29.42 996.18 996.18 | 751.9 29.6 1002.45 1002.45 | 1.6 0.06 2.13 2.13 | 80 | Wind blowing from the west | Strong breeze (12 m/s) (43 km/h) (27 miles/hour) (23 knots) (6 Bft) | 17 m/s 61 km/h 38 miles/hour 33 knots 7 Bft | 17 m/s 61 km/h 38 miles/hour 33 knots 7 Bft | 100%. 10/10. 8 oktas | Precipitation | 11.1 52 | 12.6 55 | 100%. 10/10. 8 oktas | 600-1000 1968-3281 | 9.0 5.6 | 8.3 47 | No precipitation No precipitation | 12 | ||||||||||
17 | 11.6 53 | 746.5 29.39 995.25 995.25 | 751.2 29.57 1001.52 1001.52 | 1.5 0.06 2 2 | 78 | Wind blowing from the west | 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 | 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 | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 600-1000 1968-3281 | 9.0 5.6 | 7.8 46 | No precipitation No precipitation | 1 | |||||||||||||
16 | 11.7 53 | 745.9 29.37 994.45 994.45 | 750.6 29.55 1000.72 1000.72 | 1.2 0.05 1.6 1.6 | 76 | Wind blowing from the west | Near gale (14 m/s) (50 km/h) (31 mile/hour) (27 knots) (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 | 50%. 5/10. 4 oktas | Mist. | 50%. 5/10. 4 oktas | 600-1000 1968-3281 | 13.0 8.1 | 7.5 46 | No precipitation No precipitation | 1 | ||||||||||||
15 | 11.7 53 | 745.6 29.35 994.05 994.05 | 750.4 29.54 1000.45 1000.45 | 1.3 0.05 1.73 1.73 | 79 | Wind blowing from the west | Strong breeze (13 m/s) (47 km/h) (29 miles/hour) (25 knots) (6 Bft) | 19 m/s 68 km/h 43 mph 37 knots 8 Bft | 21 m/s 76 km/h 47 miles/hour 41 mile/hour 9 Bft | 100%. 10/10. 8 oktas | 100%. 10/10. 8 oktas | 600-1000 1968-3281 | 10.0 6.2 | 8.2 47 | No precipitation No precipitation | 1 | |||||||||||||
14 | 12.1 54 | 745.0 29.33 993.25 993.25 | 749.7 29.52 999.52 999.52 | 1.3 0.05 1.73 1.73 | 82 | Wind blowing from the 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 | 22 m/s 79 km/h 49 miles/hour 43 knots 9 Bft | 60%. 6/10. 5 oktas | Mist. | 60%. 6/10. 5 oktas | 600-1000 1968-3281 | 7.0 4.4 | 9.0 48 | No precipitation No precipitation | 1 | ||||||||||||
13 | 12.5 55 | 744.7 29.32 992.85 992.85 | 749.4 29.5 999.12 999.12 | 1.6 0.06 2.13 2.13 | 79 | Wind blowing from the 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 | 21 m/s 76 km/h 47 miles/hour 41 mile/hour 9 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 | 11.0 6.8 | 8.9 48 | No precipitation No precipitation | 1 | |||||||||||||
12 | 12.3 54 | 744.3 29.3 992.32 992.32 | 748.9 29.48 998.45 998.45 | 1.8 0.07 2.4 2.4 | 81 | Wind blowing from the west | Near gale (14 m/s) (50 km/h) (31 mile/hour) (27 knots) (7 Bft) | 19 m/s 68 km/h 43 mph 37 knots 8 Bft | 23 m/s 83 km/h 51 mile/hour 45 knots 9 Bft | 100%. 10/10. 8 oktas | Mist. | 100%. 10/10. 8 oktas | 300-600 984-1968 | 8.0 5.0 | 9.1 48 | No precipitation No precipitation | 6 | ||||||||||||