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 September 18, Friday | 01 | 15.9 61 | 756.1 29.77 1008.05 1008.05 | 760.8 29.95 1014.32 1014.32 | 76 | 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 | 27 m/s 97 km/h 60 miles/hour 52 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 | 600-1000 1968-3281 | 20.0 12.4 | 11.6 53 | No precipitation No precipitation | 6 | |||||||||||||
00 | 16.0 61 | 755.8 29.76 1007.65 1007.65 | 760.5 29.94 1013.92 1013.92 | 72 | Wind blowing from the west-northwest | Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 Bft) | 30 m/s 108 km/h 67 miles/hour 58 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 | 21.0 13.1 | 10.9 52 | No precipitation No precipitation | 1 | |||||||||||||||
| September 17, Thursday | 23 | 16.1 61 | 756.0 29.76 1007.92 1007.92 | 760.6 29.94 1014.05 1014.05 | 74 | Wind blowing from the west-northwest | Strong breeze (12 m/s) (43 km/h) (27 miles/hour) (23 knots) (6 Bft) | 28 m/s 101 km/h 63 mph 54 knots 10 Bft | 50%. 5/10. 4 oktas | 50%. 5/10. 4 oktas | 600-1000 1968-3281 | 21.0 13.1 | 11.4 53 | No precipitation No precipitation | 1 | ||||||||||||||
22 | 16.1 61 | 755.9 29.76 1007.78 1007.78 | 760.6 29.94 1014.05 1014.05 | 73 | Wind blowing from the west-northwest | 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 | 28 m/s 101 km/h 63 mph 54 knots 10 Bft | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 16.0 61 | 19.1 66 | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 600-1000 1968-3281 | 21.0 13.1 | 11.3 52 | No precipitation No precipitation | 12 | ||||||||||||
21 | 16.3 61 | 755.8 29.76 1007.65 1007.65 | 760.5 29.94 1013.92 1013.92 | 72 | Wind blowing from the west-northwest | 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 | 29 m/s 104 km/h 65 miles/hour 56 knots 11 Bft | 50%. 5/10. 4 oktas | 50%. 5/10. 4 oktas | 600-1000 1968-3281 | 21.0 13.1 | 11.2 52 | No precipitation No precipitation | 1 | ||||||||||||||
20 | 16.6 62 | 755.4 29.74 1007.12 1007.12 | 760.0 29.92 1013.25 1013.25 | 68 | Wind blowing from the west-northwest | 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 | 27 m/s 97 km/h 60 miles/hour 52 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 | 600-1000 1968-3281 | 27.0 16.8 | 10.6 51 | No precipitation No precipitation | 1 | ||||||||||||||
16 | 18.3 65 | 754.6 29.71 1006.05 1006.05 | 759.3 29.89 1012.32 1012.32 | 56 | Wind blowing from the west-northwest | Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 Bft) | 29 m/s 104 km/h 65 miles/hour 56 knots 11 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 | 9.2 49 | No precipitation No precipitation | 1 | |||||||||||||||
15 | 18.0 64 | 754.6 29.71 1006.05 1006.05 | 759.2 29.89 1012.18 1012.18 | 60 | Wind blowing from the west-northwest | 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 | 60%. 6/10. 5 oktas | 60%. 6/10. 5 oktas | 1000-1500 3281-4921 | 24.0 14.9 | 10.1 50 | No precipitation No precipitation | 1 | |||||||||||||||
14 | 18.3 65 | 754.5 29.7 1005.92 1005.92 | 759.1 29.89 1012.05 1012.05 | 67 | Wind blowing from the west-northwest | 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 | 24 m/s 86 km/h 54 mph 47 knots 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 | 28.0 17.4 | 12.1 54 | No precipitation No precipitation | 1 | ||||||||||||||
12 | 17.5 64 | 754.6 29.71 1006.05 1006.05 | 759.1 29.89 1012.05 1012.05 | 76 | Wind blowing from the west-northwest | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 20 m/s 72 km/h 45 miles/hour 39 knots 8 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 | 25.0 15.5 | 13.1 56 | No precipitation No precipitation | 1 | ||||||||||||||
11 | 17.8 64 | 754.6 29.71 1006.05 1006.05 | 759.1 29.89 1012.05 1012.05 | 84 | 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 | 60%. 6/10. 5 oktas | 60%. 6/10. 5 oktas | 300-600 984-1968 | 25.0 15.5 | 15.1 59 | No precipitation No precipitation | 1 | ||||||||||||||
10 | 17.6 64 | 754.6 29.71 1006.05 1006.05 | 759.2 29.89 1012.18 1012.18 | 91 | 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 | 29 m/s 104 km/h 65 miles/hour 56 knots 11 Bft | 50%. 5/10. 4 oktas | 15.2 59 | 17.6 64 | 50%. 5/10. 4 oktas | 200-300 656-984 | 15.0 9.3 | 16.1 61 | 1.0 0.04 | 12 | ||||||||||||
09 | 16.5 62 | 754.4 29.7 1005.78 1005.78 | 759.0 29.88 1011.92 1011.92 | 96 | 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 | 100%. 10/10. 8 oktas | Precipitation | 100%. 10/10. 8 oktas | 50-100 164-328 | 13.0 8.1 | 15.9 61 | 0.6 0.02 | 1 | ||||||||||||||
08 | 16.4 62 | 754.6 29.71 1006.05 1006.05 | 759.3 29.89 1012.32 1012.32 | 95 | Wind blowing from the west-southwest | Strong breeze (13 m/s) (47 km/h) (29 miles/hour) (25 knots) (6 Bft) | 33 m/s 119 km/h 74 mph 64 knots 12 Bft | 100%. 10/10. 8 oktas | Precipitation | 100%. 10/10. 8 oktas | 200-300 656-984 | 14.0 8.7 | 15.6 60 | 0.2 0.01 | 1 | ||||||||||||||
07 | 16.1 61 | 754.8 29.72 1006.32 1006.32 | 759.4 29.9 1012.45 1012.45 | 94 | Wind blowing from the west-southwest | Strong breeze (13 m/s) (47 km/h) (29 miles/hour) (25 knots) (6 Bft) | 32 m/s 115 km/h 72 mph 62 knots 11 Bft | 100%. 10/10. 8 oktas | Precipitation | 15.2 59 | 16.6 62 | 100%. 10/10. 8 oktas | 200-300 656-984 | 9.0 5.6 | 15.1 59 | 0.6 0.02 | 12 | ||||||||||||
06 | 15.6 60 | 755.5 29.74 1007.25 1007.25 | 760.2 29.93 1013.52 1013.52 | 96 | Wind blowing from the west-southwest | 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 | 100%. 10/10. 8 oktas | Precipitation | 100%. 10/10. 8 oktas | 50-100 164-328 | 17.0 10.6 | 15.0 59 | 0.2 0.01 | 1 | ||||||||||||||
05 | 15.8 60 | 755.9 29.76 1007.78 1007.78 | 760.6 29.94 1014.05 1014.05 | 86 | Wind blowing from the west-southwest | 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 | 100%. 10/10. 8 oktas | Rain. | 100%. 10/10. 8 oktas | 300-600 984-1968 | 1.8 1.1 | 13.5 56 | No precipitation No precipitation | 1 | ||||||||||||||
04 | 16.1 61 | 756.5 29.78 1008.58 1008.58 | 761.2 29.97 1014.85 1014.85 | 80 | Wind blowing from the west-southwest | Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 Bft) | 29 m/s 104 km/h 65 miles/hour 56 knots 11 Bft | 100%. 10/10. 8 oktas | 100%. 10/10. 8 oktas | 1000-1500 3281-4921 | 30.0 18.6 | 12.7 55 | No precipitation No precipitation | 1 | |||||||||||||||
03 | 16.1 61 | 757.1 29.81 1009.38 1009.38 | 761.8 29.99 1015.65 1015.65 | 77 | Wind blowing from the west-southwest | 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 | 100%. 10/10. 8 oktas | 100%. 10/10. 8 oktas | 300-600 984-1968 | 25.0 15.5 | 12.1 54 | No precipitation No precipitation | 1 | |||||||||||||||
02 | 15.8 60 | 757.6 29.83 1010.05 1010.05 | 762.2 30.01 1016.18 1016.18 | 80 | 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 | 28 m/s 101 km/h 63 mph 54 knots 10 Bft | 50%. 5/10. 4 oktas | 50%. 5/10. 4 oktas | 300-600 984-1968 | 30.0 18.6 | 12.3 54 | No precipitation No precipitation | 1 | ||||||||||||||
01 | 16.1 61 | 758.3 29.85 1010.98 1010.98 | 763.0 30.04 1017.25 1017.25 | 80 | 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 | 100%. 10/10. 8 oktas | Precipitation | 100%. 10/10. 8 oktas | 300-600 984-1968 | 30.0 18.6 | 12.7 55 | No precipitation No precipitation | 6 | |||||||||||||