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 13, Thursday | 00 | 21.4 71 | 761.5 29.98 1015.25 1015.25 | 766.0 30.16 1021.25 1021.25 | Wind blowing from the east | Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 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 | no clouds no clouds no clouds | 45.0 28.0 | No precipitation No precipitation | 1 | |||||||||||||||||
| August 12, Wednesday | 23 | 20.9 70 | 761.4 29.98 1015.12 1015.12 | 766.0 30.16 1021.25 1021.25 | Wind blowing from the east | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 18 m/s 65 km/h 40 miles/hour 35 knots 8 Bft | 19 m/s 68 km/h 43 mph 37 knots 8 Bft | 20–30%. 2/10–3/10. 2 oktas | 20–30%. 2/10–3/10. 2 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 40.0 24.9 | No precipitation No precipitation | 1 | |||||||||||||||
22 | 21.1 70 | 761.2 29.97 1014.85 1014.85 | 765.8 30.15 1020.98 1020.98 | Wind blowing from the east | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 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 | no clouds no clouds no clouds | 20.9 70 | 23.8 75 | 45.0 28.0 | No precipitation No precipitation | 12 | ||||||||||||||||
21 | 21.0 70 | 761.2 29.97 1014.85 1014.85 | 765.8 30.15 1020.98 1020.98 | Wind blowing from the east | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 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 | 50%. 5/10. 4 oktas | 50%. 5/10. 4 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 40.0 24.9 | No precipitation No precipitation | 1 | ||||||||||||||||
20 | 21.1 70 | 761.1 29.96 1014.72 1014.72 | 765.7 30.15 1020.85 1020.85 | Wind blowing from the east | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 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 | 50%. 5/10. 4 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 40.0 24.9 | No precipitation No precipitation | 1 | ||||||||||||||||
19 | 21.6 71 | 761.2 29.97 1014.85 1014.85 | 765.8 30.15 1020.98 1020.98 | Wind blowing from the east | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 15 m/s 54 km/h 34 mph 29 knots 7 Bft | 17 m/s 61 km/h 38 miles/hour 33 knots 7 Bft | 70 – 80%. 7/10 – 8/10. 6 oktas | 20.4 69 | 23.8 75 | 70 – 80%. 7/10 – 8/10. 6 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 35.0 21.8 | No precipitation No precipitation | 12 | ||||||||||||||
18 | 22.8 73 | 761.5 29.98 1015.25 1015.25 | 766.0 30.16 1021.25 1021.25 | Wind blowing from the east | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 15 m/s 54 km/h 34 mph 29 knots 7 Bft | 17 m/s 61 km/h 38 miles/hour 33 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 | 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. | 35.0 21.8 | No precipitation No precipitation | 1 | ||||||||||||||||
17 | 22.8 73 | 761.5 29.98 1015.25 1015.25 | 766.1 30.16 1021.38 1021.38 | Wind blowing from the east | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 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 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 30.0 18.6 | No precipitation No precipitation | 1 | ||||||||||||||||
16 | 23.3 74 | 761.8 29.99 1015.65 1015.65 | 766.3 30.17 1021.65 1021.65 | Wind blowing from the east | 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 | 60%. 6/10. 5 oktas | 60%. 6/10. 5 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 30.0 18.6 | No precipitation No precipitation | 1 | ||||||||||||||||
15 | 23.3 74 | 761.9 30 1015.78 1015.78 | 766.5 30.18 1021.92 1021.92 | Wind blowing from the east | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 16 m/s 58 km/h 36 miles/hour 31 mile/hour 7 Bft | 18 m/s 65 km/h 40 miles/hour 35 knots 8 Bft | no clouds no clouds no clouds | 23.0 14.3 | No precipitation No precipitation | 1 | ||||||||||||||||||
14 | 22.8 73 | 762.1 30 1016.05 1016.05 | 766.6 30.18 1022.05 1022.05 | Wind blowing from the east | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 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 | 50%. 5/10. 4 oktas | 50%. 5/10. 4 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 26.0 16.2 | No precipitation No precipitation | 1 | ||||||||||||||||
13 | 23.5 74 | 762.1 30 1016.05 1016.05 | 766.7 30.19 1022.18 1022.18 | Wind blowing from the east | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 18 m/s 65 km/h 40 miles/hour 35 knots 8 Bft | 19 m/s 68 km/h 43 mph 37 knots 8 Bft | 40%. 4/10. 3 oktas | 40%. 4/10. 3 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 26.0 16.2 | No precipitation No precipitation | 6 | ||||||||||||||||
12 | 23.0 73 | 762.1 30 1016.05 1016.05 | 766.6 30.18 1022.05 1022.05 | Wind blowing from the east | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 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 | 60%. 6/10. 5 oktas | 60%. 6/10. 5 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 29.0 18.0 | No precipitation No precipitation | 1 | ||||||||||||||||
11 | 23.0 73 | 761.9 30 1015.78 1015.78 | 766.5 30.18 1021.92 1021.92 | Wind blowing from the east | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 18 m/s 65 km/h 40 miles/hour 35 knots 8 Bft | 19 m/s 68 km/h 43 mph 37 knots 8 Bft | 40%. 4/10. 3 oktas | 40%. 4/10. 3 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 26.0 16.2 | No precipitation No precipitation | 1 | ||||||||||||||||
10 | 22.7 73 | 761.8 29.99 1015.65 1015.65 | 766.4 30.17 1021.78 1021.78 | Wind blowing from the east | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 19 m/s 68 km/h 43 mph 37 knots 8 Bft | 20 m/s 72 km/h 45 miles/hour 39 knots 8 Bft | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 18.8 66 | 22.9 73 | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 26.0 16.2 | No precipitation No precipitation | 12 | ||||||||||||||
09 | 22.2 72 | 761.8 29.99 1015.65 1015.65 | 766.3 30.17 1021.65 1021.65 | Wind blowing from the east | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 19 m/s 68 km/h 43 mph 37 knots 8 Bft | 20 m/s 72 km/h 45 miles/hour 39 knots 8 Bft | 70 – 80%. 7/10 – 8/10. 6 oktas | 70 – 80%. 7/10 – 8/10. 6 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 26.0 16.2 | No precipitation No precipitation | 1 | ||||||||||||||||
08 | 21.2 70 | 761.7 29.99 1015.52 1015.52 | 766.3 30.17 1021.65 1021.65 | Wind blowing from the east | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 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 | 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 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 28.0 17.4 | No precipitation No precipitation | 1 | ||||||||||||||||
07 | 20.4 69 | 761.6 29.98 1015.38 1015.38 | 766.2 30.17 1021.52 1021.52 | Wind blowing from the east | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 19 m/s 68 km/h 43 mph 37 knots 8 Bft | 20 m/s 72 km/h 45 miles/hour 39 knots 8 Bft | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 18.8 66 | 20.5 69 | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 25.0 15.5 | No precipitation No precipitation | 12 | ||||||||||||||
06 | 19.6 67 | 761.3 29.97 1014.98 1014.98 | 766.0 30.16 1021.25 1021.25 | Wind blowing from the east | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 18 m/s 65 km/h 40 miles/hour 35 knots 8 Bft | 20 m/s 72 km/h 45 miles/hour 39 knots 8 Bft | no clouds no clouds no clouds | 24.0 14.9 | No precipitation No precipitation | 1 | ||||||||||||||||||
05 | 19.6 67 | 761.2 29.97 1014.85 1014.85 | 765.8 30.15 1020.98 1020.98 | Wind blowing from the east | Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 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 | no clouds no clouds no clouds | 27.0 16.8 | No precipitation No precipitation | 1 | ||||||||||||||||||
04 | 19.6 67 | 761.2 29.97 1014.85 1014.85 | 765.8 30.15 1020.98 1020.98 | Wind blowing from the east | 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 | no clouds no clouds no clouds | 29.0 18.0 | No precipitation No precipitation | 1 | ||||||||||||||||||
03 | 19.1 66 | 761.4 29.98 1015.12 1015.12 | 766.0 30.16 1021.25 1021.25 | Wind blowing from the east | 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 | 20 m/s 72 km/h 45 miles/hour 39 knots 8 Bft | no clouds no clouds no clouds | 29.0 18.0 | No precipitation No precipitation | 1 | ||||||||||||||||||
02 | 19.7 67 | 761.6 29.98 1015.38 1015.38 | 766.2 30.17 1021.52 1021.52 | Wind blowing from the east | 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 | 23 m/s 83 km/h 51 mile/hour 45 knots 9 Bft | no clouds no clouds no clouds | 26.0 16.2 | No precipitation No precipitation | 1 | ||||||||||||||||||
01 | 19.4 67 | 762.0 30 1015.92 1015.92 | 766.6 30.18 1022.05 1022.05 | Wind blowing from the east | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 18 m/s 65 km/h 40 miles/hour 35 knots 8 Bft | 20 m/s 72 km/h 45 miles/hour 39 knots 8 Bft | no clouds no clouds no clouds | 19.0 11.8 | No precipitation No precipitation | 6 | ||||||||||||||||||
00 | 19.3 67 | 762.0 30 1015.92 1015.92 | 766.6 30.18 1022.05 1022.05 | Wind blowing from the east | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 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 | no clouds no clouds no clouds | 19.0 11.8 | No precipitation No precipitation | 1 | ||||||||||||||||||