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 May 13, Wednesday | 19 | 12.2 54 | 748.8 29.48 998.32 998.32 | 753.5 29.67 1004.58 1004.58 | 67 | Wind blowing from the west-northwest | Near gale (14 m/s) (50 km/h) (31 mile/hour) (27 knots) (7 Bft) | 37 m/s 133 km/h 83 mph 72 knots 12 Bft | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 8.8 48 | 13.3 56 | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 2000-2500 6562-8202 | 19.0 11.8 | 6.2 43 | No precipitation No precipitation | 12 | ||||||||||||
18 | 12.8 55 | 748.8 29.48 998.32 998.32 | 753.4 29.66 1004.45 1004.45 | 61 | Wind blowing from the west-northwest | Near gale (14 m/s) (50 km/h) (31 mile/hour) (27 knots) (7 Bft) | 36 m/s 130 km/h 81 mile/hour 70 knots 12 Bft | 20–30%. 2/10–3/10. 2 oktas | 20–30%. 2/10–3/10. 2 oktas | 1000-1500 3281-4921 | 16.0 9.9 | 5.3 42 | No precipitation No precipitation | 1 | |||||||||||||||
17 | 12.9 55 | 748.9 29.48 998.45 998.45 | 753.5 29.67 1004.58 1004.58 | 61 | Wind blowing from the west-northwest | Strong breeze (12 m/s) (43 km/h) (27 miles/hour) (23 knots) (6 Bft) | 33 m/s 119 km/h 74 mph 64 knots 12 Bft | 50%. 5/10. 4 oktas | 50%. 5/10. 4 oktas | 1000-1500 3281-4921 | 18.0 11.2 | 5.4 42 | No precipitation No precipitation | 1 | |||||||||||||||
16 | 12.2 54 | 748.9 29.48 998.45 998.45 | 753.6 29.67 1004.72 1004.72 | 66 | Wind blowing from the west-northwest | Near gale (14 m/s) (50 km/h) (31 mile/hour) (27 knots) (7 Bft) | 39 m/s 140 km/h 87 miles/hour 76 knots 12 Bft | 50%. 5/10. 4 oktas | 50%. 5/10. 4 oktas | 1000-1500 3281-4921 | 19.0 11.8 | 6.0 43 | No precipitation No precipitation | 1 | |||||||||||||||
15 | 11.9 53 | 748.9 29.48 998.45 998.45 | 753.6 29.67 1004.72 1004.72 | 62 | Wind blowing from the west-northwest | Near gale (15 m/s) (54 km/h) (34 mph) (29 knots) (7 Bft) | 38 m/s 137 km/h 85 miles/hour 74 knots 12 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 | 1000-1500 3281-4921 | 18.0 11.2 | 4.8 41 | No precipitation No precipitation | 1 | |||||||||||||||
14 | 12.4 54 | 749.0 29.49 998.58 998.58 | 753.7 29.67 1004.85 1004.85 | 58 | Wind blowing from the west-northwest | Strong breeze (12 m/s) (43 km/h) (27 miles/hour) (23 knots) (6 Bft) | 33 m/s 119 km/h 74 mph 64 knots 12 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 | 1500-2000 4921-6562 | 18.0 11.2 | 4.2 40 | No precipitation No precipitation | 1 | |||||||||||||||
13 | 12.1 54 | 749.2 29.5 998.85 998.85 | 754.0 29.69 1005.25 1005.25 | 65 | Wind blowing from the north-west | Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 Bft) | 34 m/s 122 km/h 76 miles/hour 66 knots 12 Bft | 50%. 5/10. 4 oktas | Rain (not freezing). | 50%. 5/10. 4 oktas | 1000-1500 3281-4921 | 20.0 12.4 | 5.6 42 | No precipitation No precipitation | 6 | ||||||||||||||
12 | 11.0 52 | 749.5 29.51 999.25 999.25 | 754.3 29.7 1005.65 1005.65 | 72 | Wind blowing from the west-northwest | Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 Bft) | 36 m/s 130 km/h 81 mile/hour 70 knots 12 Bft | 100%. 10/10. 8 oktas | Rain, not freezing, slight. | 100%. 10/10. 8 oktas | 600-1000 1968-3281 | 20.0 12.4 | 6.0 43 | No precipitation No precipitation | 1 | ||||||||||||||
11 | 11.3 52 | 749.8 29.52 999.65 999.65 | 754.5 29.7 1005.92 1005.92 | 68 | Wind blowing from the west-northwest | Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 Bft) | 31 m/s 112 km/h 69 miles/hour 60 knots 11 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 | 24.0 14.9 | 5.5 42 | No precipitation No precipitation | 1 | |||||||||||||||
10 | 10.9 52 | 750.0 29.53 999.92 999.92 | 754.7 29.71 1006.18 1006.18 | 68 | Wind blowing from the north-west | Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 Bft) | 37 m/s 133 km/h 83 mph 72 knots 12 Bft | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 8.8 48 | 12.2 54 | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 2000-2500 6562-8202 | 20.0 12.4 | 5.1 41 | No precipitation No precipitation | 12 | |||||||||||||
09 | 10.6 51 | 750.3 29.54 1000.32 1000.32 | 755.0 29.72 1006.58 1006.58 | 73 | Wind blowing from the west-northwest | Strong breeze (12 m/s) (43 km/h) (27 miles/hour) (23 knots) (6 Bft) | 42 m/s 151 km/h 94 mph 82 knots 12 Bft | 50%. 5/10. 4 oktas | Precipitation | 50%. 5/10. 4 oktas | 600-1000 1968-3281 | 19.0 11.8 | 6.0 43 | No precipitation No precipitation | 1 | ||||||||||||||
08 | 10.3 51 | 750.4 29.54 1000.45 1000.45 | 755.1 29.73 1006.72 1006.72 | 76 | Wind blowing from the west | Near gale (16 m/s) (58 km/h) (36 miles/hour) (31 mile/hour) (7 Bft) | 38 m/s 137 km/h 85 miles/hour 74 knots 12 Bft | 100%. 10/10. 8 oktas | Precipitation | 100%. 10/10. 8 oktas | 600-1000 1968-3281 | 12.0 7.5 | 6.2 43 | No precipitation No precipitation | 1 | ||||||||||||||
07 | 10.5 51 | 751.0 29.57 1001.25 1001.25 | 755.8 29.76 1007.65 1007.65 | 74 | Wind blowing from the west | Strong breeze (12 m/s) (43 km/h) (27 miles/hour) (23 knots) (6 Bft) | 34 m/s 122 km/h 76 miles/hour 66 knots 12 Bft | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | 10.3 51 | 13.5 56 | 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 | 15.0 9.3 | 6.0 43 | No precipitation No precipitation | 12 | |||||||||||||
06 | 10.5 51 | 751.6 29.59 1002.05 1002.05 | 756.2 29.77 1008.18 1008.18 | 73 | Wind blowing from the west | Near gale (14 m/s) (50 km/h) (31 mile/hour) (27 knots) (7 Bft) | 37 m/s 133 km/h 83 mph 72 knots 12 Bft | 60%. 6/10. 5 oktas | 60%. 6/10. 5 oktas | 600-1000 1968-3281 | 13.0 8.1 | 5.9 43 | No precipitation No precipitation | 1 | |||||||||||||||
05 | 10.5 51 | 751.6 29.59 1002.05 1002.05 | 756.3 29.78 1008.32 1008.32 | 71 | Wind blowing from the west-northwest | Near gale (14 m/s) (50 km/h) (31 mile/hour) (27 knots) (7 Bft) | 35 m/s 126 km/h 78 miles/hour 68 knots 12 Bft | 40%. 4/10. 3 oktas | 40%. 4/10. 3 oktas | 1000-1500 3281-4921 | 13.0 8.1 | 5.5 42 | No precipitation No precipitation | 1 | |||||||||||||||
04 | 10.7 51 | 752.5 29.63 1003.25 1003.25 | 757.2 29.81 1009.52 1009.52 | 74 | Wind blowing from the west-northwest | Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 Bft) | 33 m/s 119 km/h 74 mph 64 knots 12 Bft | 100%. 10/10. 8 oktas | 100%. 10/10. 8 oktas | 300-600 984-1968 | 14.0 8.7 | 6.2 43 | No precipitation No precipitation | 1 | |||||||||||||||
03 | 11.3 52 | 753.1 29.65 1004.05 1004.05 | 757.8 29.83 1010.32 1010.32 | 77 | Wind blowing from the west | Strong breeze (12 m/s) (43 km/h) (27 miles/hour) (23 knots) (6 Bft) | 29 m/s 104 km/h 65 miles/hour 56 knots 11 Bft | 70 – 80%. 7/10 – 8/10. 6 oktas | 70 – 80%. 7/10 – 8/10. 6 oktas | 600-1000 1968-3281 | 14.0 8.7 | 7.3 45 | No precipitation No precipitation | 1 | |||||||||||||||
02 | 11.2 52 | 753.7 29.67 1004.85 1004.85 | 758.5 29.86 1011.25 1011.25 | 78 | 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 | 27 m/s 97 km/h 60 miles/hour 52 knots 10 Bft | no clouds no clouds no clouds | 15.0 9.3 | 7.4 45 | No precipitation No precipitation | 1 | ||||||||||||||||
01 | 11.3 52 | 754.5 29.7 1005.92 1005.92 | 759.2 29.89 1012.18 1012.18 | 74 | 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 | no clouds no clouds no clouds | 18.0 11.2 | 6.8 44 | No precipitation No precipitation | 6 | ||||||||||||||||
00 | 11.4 53 | 755.1 29.73 1006.72 1006.72 | 759.8 29.91 1012.98 1012.98 | 73 | Wind blowing from the west | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 22 m/s 79 km/h 49 miles/hour 43 knots 9 Bft | 25 m/s 90 km/h 56 miles/hour 49 knots 10 Bft | no clouds no clouds no clouds | 20.0 12.4 | 6.7 44 | No precipitation No precipitation | 1 | ||||||||||||||||
| May 12, Tuesday | 23 | 11.7 53 | 755.4 29.74 1007.12 1007.12 | 760.1 29.93 1013.38 1013.38 | 70 | Wind blowing from the west-northwest | 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 | 25 m/s 90 km/h 56 miles/hour 49 knots 10 Bft | no clouds no clouds no clouds | 21.0 13.1 | 6.4 44 | No precipitation No precipitation | 1 | |||||||||||||||
22 | 12.1 54 | 755.7 29.75 1007.52 1007.52 | 760.4 29.94 1013.78 1013.78 | 73 | Wind blowing from the west-northwest | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 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 | no clouds no clouds no clouds | 12.1 54 | 14.8 59 | 25.0 15.5 | 7.4 45 | No precipitation No precipitation | 12 | ||||||||||||||
21 | 12.4 54 | 755.8 29.76 1007.65 1007.65 | 760.6 29.94 1014.05 1014.05 | 75 | Wind blowing from the west-northwest | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 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 | no clouds no clouds no clouds | 25.0 15.5 | 8.1 47 | No precipitation No precipitation | 1 | ||||||||||||||||
20 | 12.8 55 | 755.7 29.75 1007.52 1007.52 | 760.4 29.94 1013.78 1013.78 | 73 | Wind blowing from the west-northwest | 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 | 100%. 10/10. 8 oktas | 100%. 10/10. 8 oktas | 1000-1500 3281-4921 | 22.0 13.7 | 8.1 47 | No precipitation No precipitation | 1 | ||||||||||||||
19 | 13.3 56 | 755.8 29.76 1007.65 1007.65 | 760.4 29.94 1013.78 1013.78 | 71 | Wind blowing from the west-northwest | 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 | 70 – 80%. 7/10 – 8/10. 6 oktas | 8.8 48 | 14.8 59 | 70 – 80%. 7/10 – 8/10. 6 oktas | 1000-1500 3281-4921 | 27.0 16.8 | 8.1 47 | No precipitation No precipitation | 12 | ||||||||||||