Weather archive in Harrow (airport)
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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 13, Sunday | 08 | 21.0 70 | 742.6 29.24 990.05 990.05 | 759.6 29.91 1012.72 1012.72 | 0.9 0.04 1.2 1.2 | 100 | Wind blowing from the west | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 20.6 69 | 25.3 78 | 21.0 70 | No precipitation No precipitation | 6 | ||||||||||||||||
07 | 20.8 69 | 742.0 29.21 989.25 989.25 | 759.0 29.88 1011.92 1011.92 | 100 | Wind blowing from the west | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 2 m/s 7 km/h 4 mph 4 knots 2 Bft | 3 m/s 11 km/h 7 miles/hour 6 knots 2 Bft | 20.8 69 | No precipitation No precipitation | 1 | ||||||||||||||||||
06 | 21.6 71 | 742.0 29.21 989.25 989.25 | 759.0 29.88 1011.92 1011.92 | 100 | Wind blowing from the west | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 3 m/s 11 km/h 7 miles/hour 6 knots 2 Bft | 3 m/s 11 km/h 7 miles/hour 6 knots 2 Bft | 21.6 71 | No precipitation No precipitation | 1 | ||||||||||||||||||
05 | 21.2 70 | 741.7 29.2 988.85 988.85 | 758.6 29.87 1011.38 1011.38 | -0.4 -0.02 -0.53 -0.53 | 100 | Wind blowing from the west-southwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 21.2 70 | No precipitation No precipitation | 3 | |||||||||||||||||||
04 | 21.3 70 | 741.6 29.2 988.72 988.72 | 758.5 29.86 1011.25 1011.25 | 100 | Wind blowing from the west-southwest | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 3 m/s 11 km/h 7 miles/hour 6 knots 2 Bft | 3 m/s 11 km/h 7 miles/hour 6 knots 2 Bft | 21.3 70 | No precipitation No precipitation | 1 | ||||||||||||||||||
02 | 22.2 72 | 742.1 29.22 989.39 989.39 | 759.1 29.89 1012.05 1012.05 | 0.1 0 0.13 0.13 | 100 | Wind blowing from the west-southwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 25.3 78 | 22.2 72 | No precipitation No precipitation | 6 | ||||||||||||||||||
01 | 22.5 73 | 742.2 29.22 989.52 989.52 | 759.2 29.89 1012.18 1012.18 | 100 | Wind blowing from the west-southwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 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 | 22.5 73 | No precipitation No precipitation | 1 | ||||||||||||||||||
00 | 22.7 73 | 742.2 29.22 989.52 989.52 | 759.1 29.89 1012.05 1012.05 | 100 | Wind blowing from the south-west | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 4 m/s 14 km/h 9 miles/hour 8 knots 3 Bft | 4 m/s 14 km/h 9 miles/hour 8 knots 3 Bft | 22.7 73 | No precipitation No precipitation | 1 | ||||||||||||||||||
| September 12, Saturday | 23 | 22.9 73 | 742.0 29.21 989.25 989.25 | 759.0 29.88 1011.92 1011.92 | 0.7 0.03 0.93 0.93 | 98 | Wind blowing from the south-west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 22.5 73 | No precipitation No precipitation | 3 | ||||||||||||||||||
22 | 23.4 74 | 742.1 29.22 989.39 989.39 | 759.1 29.89 1012.05 1012.05 | 94 | Wind blowing from the south-west | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 4 m/s 14 km/h 9 miles/hour 8 knots 3 Bft | 4 m/s 14 km/h 9 miles/hour 8 knots 3 Bft | 22.3 72 | No precipitation No precipitation | 1 | ||||||||||||||||||
20 | 22.5 73 | 741.3 29.19 988.32 988.32 | 758.3 29.85 1010.98 1010.98 | 0.2 0.01 0.27 0.27 | 100 | Wind blowing from the south | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 17.4 63 | 25.3 78 | 22.5 73 | No precipitation No precipitation | 6 | |||||||||||||||||
19 | 24.3 76 | 741.0 29.17 987.92 987.92 | 758.0 29.84 1010.58 1010.58 | 86 | Wind blowing from the south-southwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 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 | 21.8 71 | No precipitation No precipitation | 1 | ||||||||||||||||||
18 | 24.6 76 | 741.1 29.18 988.05 988.05 | 758.1 29.85 1010.72 1010.72 | 86 | Wind blowing from the south-west | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 4 m/s 14 km/h 9 miles/hour 8 knots 3 Bft | 6 m/s 22 km/h 13 miles/hour 12 knots 4 Bft | 22.1 72 | No precipitation No precipitation | 1 | ||||||||||||||||||
17 | 24.4 76 | 741.1 29.18 988.05 988.05 | 758.1 29.85 1010.72 1010.72 | -0.7 -0.03 -0.93 -0.93 | 87 | Wind blowing from the south-southwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 22.1 72 | No precipitation No precipitation | 3 | |||||||||||||||||||
16 | 24.0 75 | 741.3 29.19 988.32 988.32 | 758.2 29.85 1010.85 1010.85 | 90 | Wind blowing from the south | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 5 m/s 18 km/h 11 miles/hour 10 knots 3 Bft | 5 m/s 18 km/h 11 miles/hour 10 knots 3 Bft | 22.2 72 | No precipitation No precipitation | 1 | ||||||||||||||||||
15 | 24.1 75 | 741.8 29.2 988.99 988.99 | 758.8 29.87 1011.65 1011.65 | 88 | Wind blowing from the south-southwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 4 m/s 14 km/h 9 miles/hour 8 knots 3 Bft | 4 m/s 14 km/h 9 miles/hour 8 knots 3 Bft | 21.9 71 | No precipitation No precipitation | 1 | ||||||||||||||||||
14 | 23.7 75 | 741.8 29.2 988.99 988.99 | 758.8 29.87 1011.65 1011.65 | -1.0 -0.04 -1.33 -1.33 | 86 | Wind blowing from the south-west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 16.6 62 | 24.9 77 | 21.2 70 | No precipitation No precipitation | 6 | |||||||||||||||||
13 | 24.7 76 | 742.2 29.22 989.52 989.52 | 759.2 29.89 1012.18 1012.18 | 81 | Wind blowing from the south-west | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 4 m/s 14 km/h 9 miles/hour 8 knots 3 Bft | 4 m/s 14 km/h 9 miles/hour 8 knots 3 Bft | 21.3 70 | No precipitation No precipitation | 1 | ||||||||||||||||||
12 | 24.4 76 | 742.4 29.23 989.79 989.79 | 759.4 29.9 1012.45 1012.45 | 79 | Wind blowing from the south-southwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 4 m/s 14 km/h 9 miles/hour 8 knots 3 Bft | 6 m/s 22 km/h 13 miles/hour 12 knots 4 Bft | 20.6 69 | No precipitation No precipitation | 1 | ||||||||||||||||||
11 | 23.7 75 | 742.8 29.24 990.32 990.32 | 759.8 29.91 1012.98 1012.98 | 0.0 0 0 0 | 83 | Wind blowing from the south-southwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 20.6 69 | No precipitation No precipitation | 3 | |||||||||||||||||||
10 | 22.7 73 | 742.9 29.25 990.45 990.45 | 760.0 29.92 1013.25 1013.25 | 89 | Wind blowing from the south | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 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 | 20.8 69 | No precipitation No precipitation | 1 | ||||||||||||||||||
08 | 18.7 66 | 742.8 29.24 990.32 990.32 | 759.9 29.92 1013.12 1013.12 | 0.1 0 0.13 0.13 | 100 | Calm, no wind | Calm | 16.6 62 | 18.7 66 | No precipitation No precipitation | 6 | ||||||||||||||||||