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 21, Friday | 04 | 14.9 59 | 754.0 29.69 1005.25 1005.25 | 758.6 29.87 1011.38 1011.38 | 82 | Wind blowing from the north | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 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 | 100%. 10/10. 8 oktas | 100%. 10/10. 8 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 30.0 18.6 | 11.8 53 | No precipitation No precipitation | 1 | |||||||||||||
03 | 15.3 60 | 753.8 29.68 1004.98 1004.98 | 758.5 29.86 1011.25 1011.25 | 82 | Wind blowing from the north | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 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 | Drizzle, not freezing, slight. | 100%. 10/10. 8 oktas | 1000-1500 3281-4921 | 24.0 14.9 | 12.2 54 | No precipitation No precipitation | 1 | |||||||||||||
02 | 15.5 60 | 753.8 29.68 1004.98 1004.98 | 758.5 29.86 1011.25 1011.25 | 80 | Wind blowing from the north | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 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 | 100%. 10/10. 8 oktas | 1500-2000 4921-6562 | 23.0 14.3 | 12.1 54 | No precipitation No precipitation | 1 | ||||||||||||||
01 | 15.9 61 | 753.6 29.67 1004.72 1004.72 | 758.2 29.85 1010.85 1010.85 | 79 | Wind blowing from the north | 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 | 100%. 10/10. 8 oktas | 100%. 10/10. 8 oktas | 2000-2500 6562-8202 | 35.0 21.8 | 12.2 54 | No precipitation No precipitation | 6 | ||||||||||||||
00 | 16.4 62 | 753.3 29.66 1004.32 1004.32 | 757.9 29.84 1010.45 1010.45 | 74 | Wind blowing from the north-northwest | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 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 | 100%. 10/10. 8 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 40.0 24.9 | 11.7 53 | No precipitation No precipitation | 1 | ||||||||||||||
| August 20, Thursday | 23 | 17.1 63 | 753.0 29.65 1003.92 1003.92 | 757.6 29.83 1010.05 1010.05 | 74 | Wind blowing from the north-west | 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 | 21 m/s 76 km/h 47 miles/hour 41 mile/hour 9 Bft | 100%. 10/10. 8 oktas | 100%. 10/10. 8 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 45.0 28.0 | 12.4 54 | No precipitation No precipitation | 1 | |||||||||||||
22 | 17.5 64 | 752.9 29.64 1003.78 1003.78 | 757.6 29.83 1010.05 1010.05 | 72 | Wind blowing from the north-west | 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 | 23 m/s 83 km/h 51 mile/hour 45 knots 9 Bft | 40%. 4/10. 3 oktas | 15.8 60 | 23.5 74 | 40%. 4/10. 3 oktas | 2000-2500 6562-8202 | 40.0 24.9 | 12.3 54 | No precipitation No precipitation | 12 | ||||||||||||
21 | 17.9 64 | 752.5 29.63 1003.25 1003.25 | 757.1 29.81 1009.38 1009.38 | 68 | Wind blowing from the north-west | 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 | 26 m/s 94 km/h 58 miles/hour 51 mile/hour 10 Bft | no clouds no clouds no clouds | 40.0 24.9 | 11.9 53 | No precipitation No precipitation | 1 | ||||||||||||||||
20 | 18.6 65 | 751.8 29.6 1002.32 1002.32 | 756.4 29.78 1008.45 1008.45 | 65 | Wind blowing from the west-northwest | Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 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 | 40.0 24.9 | 11.8 53 | No precipitation No precipitation | 1 | ||||||||||||||||
19 | 19.5 67 | 751.5 29.59 1001.92 1001.92 | 756.1 29.77 1008.05 1008.05 | 60 | Wind blowing from the west-northwest | 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 | no clouds no clouds no clouds | 15.8 60 | 23.5 74 | 50.0 31.1 | 11.5 53 | No precipitation No precipitation | 12 | ||||||||||||||
18 | 19.8 68 | 751.3 29.58 1001.65 1001.65 | 755.9 29.76 1007.78 1007.78 | 63 | Wind blowing from the west | 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 | 25 m/s 90 km/h 56 miles/hour 49 knots 10 Bft | no clouds no clouds no clouds | 40.0 24.9 | 12.4 54 | No precipitation No precipitation | 1 | ||||||||||||||||
17 | 20.3 69 | 751.2 29.57 1001.52 1001.52 | 755.8 29.76 1007.65 1007.65 | 61 | 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 | 24 m/s 86 km/h 54 mph 47 knots 9 Bft | no clouds no clouds no clouds | 45.0 28.0 | 12.5 55 | No precipitation No precipitation | 1 | ||||||||||||||||
16 | 19.6 67 | 751.1 29.57 1001.38 1001.38 | 755.7 29.75 1007.52 1007.52 | 73 | 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 | 25 m/s 90 km/h 56 miles/hour 49 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 | 2000-2500 6562-8202 | 22.0 13.7 | 14.6 58 | No precipitation No precipitation | 1 | ||||||||||||||
10 | 18.0 64 | 750.2 29.54 1000.18 1000.18 | 754.8 29.72 1006.32 1006.32 | 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 | 23 m/s 83 km/h 51 mile/hour 45 knots 9 Bft | 40%. 4/10. 3 oktas | 16.9 62 | 18.4 65 | 40%. 4/10. 3 oktas | 300-600 984-1968 | 29.0 18.0 | No precipitation No precipitation | 12 | ||||||||||||||
09 | 17.6 64 | 750.0 29.53 999.92 999.92 | 754.6 29.71 1006.05 1006.05 | Wind blowing from the west | 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 | 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 | 27.0 16.8 | No precipitation No precipitation | 1 | ||||||||||||||||
08 | 17.4 63 | 749.8 29.52 999.65 999.65 | 754.4 29.7 1005.78 1005.78 | Wind blowing from the west | Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 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 | 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 | 300-600 984-1968 | 20.0 12.4 | No precipitation No precipitation | 1 | ||||||||||||||||
07 | 17.0 63 | 749.5 29.51 999.25 999.25 | 754.1 29.69 1005.38 1005.38 | 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 | 24 m/s 86 km/h 54 mph 47 knots 9 Bft | 50%. 5/10. 4 oktas | 16.9 62 | 20.2 68 | 50%. 5/10. 4 oktas | 300-600 984-1968 | 24.0 14.9 | No precipitation No precipitation | 12 | ||||||||||||||
06 | 17.0 63 | 749.4 29.5 999.12 999.12 | 754.0 29.69 1005.25 1005.25 | 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 | 24 m/s 86 km/h 54 mph 47 knots 9 Bft | 70 – 80%. 7/10 – 8/10. 6 oktas | 70 – 80%. 7/10 – 8/10. 6 oktas | 300-600 984-1968 | 27.0 16.8 | No precipitation No precipitation | 1 | ||||||||||||||||
05 | 17.1 63 | 749.5 29.51 999.25 999.25 | 754.2 29.69 1005.52 1005.52 | Wind blowing from the west | 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 | 24 m/s 86 km/h 54 mph 47 knots 9 Bft | 40%. 4/10. 3 oktas | 40%. 4/10. 3 oktas | 300-600 984-1968 | 23.0 14.3 | No precipitation No precipitation | 1 | ||||||||||||||||
04 | 17.3 63 | 749.6 29.51 999.38 999.38 | 754.2 29.69 1005.52 1005.52 | 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 | 27 m/s 97 km/h 60 miles/hour 52 knots 10 Bft | 100%. 10/10. 8 oktas | 100%. 10/10. 8 oktas | 300-600 984-1968 | 24.0 14.9 | No precipitation No precipitation | 1 | ||||||||||||||||