Weather archive in Belfast / Aldergrove (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 19, Saturday | 13 | 16.0 61 | 750.8 29.56 1000.98 1000.98 | 756.4 29.78 1008.45 1008.45 | 69 | Wind blowing from the west-southwest | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | Precipitation | 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 | 35.0 21.8 | 10.2 50 | 0.2 0.01 | 6 | ||||||||||||||
12 | 14.5 58 | 750.4 29.54 1000.45 1000.45 | 756.1 29.77 1008.05 1008.05 | 74 | Wind blowing from the west-southwest | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 100%. 10/10. 8 oktas | Precipitation | 100%. 10/10. 8 oktas | 600-1000 1968-3281 | 23.0 14.3 | 9.9 50 | |||||||||||||||||
11 | 13.8 57 | 750.0 29.53 999.92 999.92 | 755.6 29.75 1007.38 1007.38 | 76 | Wind blowing from the west-southwest | Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft) | 100%. 10/10. 8 oktas | Precipitation | 100%. 10/10. 8 oktas | 600-1000 1968-3281 | 2.4 1.5 | 9.7 49 | |||||||||||||||||
10 | 14.7 58 | 749.0 29.49 998.58 998.58 | 754.6 29.71 1006.05 1006.05 | 77 | Wind blowing from the west-southwest | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | Drizzle (not freezing) or snow grains. | 12.8 55 | 16.1 61 | 70 – 80%. 7/10 – 8/10. 6 oktas | 300-600 984-1968 | 30.0 18.6 | 10.7 51 | |||||||||||||||
09 | 13.1 56 | 748.5 29.47 997.92 997.92 | 754.2 29.69 1005.52 1005.52 | 90 | Wind blowing from the south-west | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 100%. 10/10. 8 oktas | Drizzle and rain, slight. | 100%. 10/10. 8 oktas | 300-600 984-1968 | 17.0 10.6 | 11.5 53 | |||||||||||||||||
08 | 13.0 55 | 748.0 29.45 997.25 997.25 | 753.7 29.67 1004.85 1004.85 | 88 | Wind blowing from the south-west | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 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 | 300-600 984-1968 | 27.0 16.8 | 11.1 52 | ||||||||||||||||||
07 | 13.1 56 | 747.8 29.44 996.98 996.98 | 753.4 29.66 1004.45 1004.45 | 86 | Wind blowing from the south-west | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 100%. 10/10. 8 oktas | 13.0 55 | 16.5 62 | 100%. 10/10. 8 oktas | 1000-1500 3281-4921 | 27.0 16.8 | 10.7 51 | 3.0 0.12 | 12 | ||||||||||||||
06 | 13.7 57 | 747.4 29.43 996.45 996.45 | 753.1 29.65 1004.05 1004.05 | 76 | Wind blowing from the west-southwest | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 100%. 10/10. 8 oktas | 100%. 10/10. 8 oktas | 600-1000 1968-3281 | 30.0 18.6 | 9.6 49 | ||||||||||||||||||
04 | 14.1 57 | 747.5 29.43 996.58 996.58 | 753.1 29.65 1004.05 1004.05 | 87 | Wind blowing from the west-southwest | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 100%. 10/10. 8 oktas | 100%. 10/10. 8 oktas | 300-600 984-1968 | 35.0 21.8 | 11.9 53 | ||||||||||||||||||
03 | 14.2 58 | 747.1 29.41 996.05 996.05 | 752.8 29.64 1003.65 1003.65 | 86 | Wind blowing from the west-southwest | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 100%. 10/10. 8 oktas | 100%. 10/10. 8 oktas | 600-1000 1968-3281 | 35.0 21.8 | 11.9 53 | ||||||||||||||||||
02 | 13.7 57 | 747.2 29.42 996.18 996.18 | 752.8 29.64 1003.65 1003.65 | 90 | Wind blowing from the west-southwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | Rain (not freezing). | 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 | 40.0 24.9 | 12.0 54 | |||||||||||||||||
01 | 14.3 58 | 746.9 29.41 995.79 995.79 | 752.5 29.63 1003.25 1003.25 | 93 | Wind blowing from the west | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 100%. 10/10. 8 oktas | Rain. | 100%. 10/10. 8 oktas | 300-600 984-1968 | 4.2 2.6 | 13.1 56 | 3.0 0.12 | 6 | |||||||||||||||
00 | 14.6 58 | 747.0 29.41 995.92 995.92 | 752.6 29.63 1003.38 1003.38 | 95 | Wind blowing from the west | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 100%. 10/10. 8 oktas | Rain, not freezing, heavy. | 100%. 10/10. 8 oktas | 100-200 328-656 | 3.4 2.1 | 13.8 57 | |||||||||||||||||
| September 18, Friday | 23 | 15.9 61 | 746.5 29.39 995.25 995.25 | 752.1 29.61 1002.72 1002.72 | 96 | Wind blowing from the south-west | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 100%. 10/10. 8 oktas | Rain. | 100%. 10/10. 8 oktas | 100-200 328-656 | 13.0 8.1 | 15.3 60 | ||||||||||||||||
22 | 16.1 61 | 746.3 29.38 994.99 994.99 | 751.9 29.6 1002.45 1002.45 | 93 | Wind blowing from the south-west | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 100%. 10/10. 8 oktas | 10.6 51 | 17.5 64 | 100%. 10/10. 8 oktas | 100-200 328-656 | 35.0 21.8 | 15.0 59 | ||||||||||||||||
21 | 16.1 61 | 746.2 29.38 994.85 994.85 | 751.7 29.59 1002.18 1002.18 | 96 | Wind blowing from the south-west | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 100%. 10/10. 8 oktas | Drizzle (not freezing) or snow grains. | 100%. 10/10. 8 oktas | 100-200 328-656 | 35.0 21.8 | 15.4 60 | |||||||||||||||||
20 | 16.2 61 | 745.9 29.37 994.45 994.45 | 751.5 29.59 1001.92 1001.92 | 94 | Wind blowing from the south-west | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 100%. 10/10. 8 oktas | Drizzle (not freezing) or snow grains. | 100%. 10/10. 8 oktas | 200-300 656-984 | 30.0 18.6 | 15.2 59 | |||||||||||||||||
19 | 16.5 62 | 745.7 29.36 994.19 994.19 | 751.3 29.58 1001.65 1001.65 | 93 | Wind blowing from the south-west | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 100%. 10/10. 8 oktas | 10.6 51 | 17.5 64 | 100%. 10/10. 8 oktas | 100-200 328-656 | 17.0 10.6 | 15.4 60 | 3.0 0.12 | 12 | ||||||||||||||
18 | 17.4 63 | 745.8 29.36 994.32 994.32 | 751.3 29.58 1001.65 1001.65 | 90 | Wind blowing from the south-west | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 100%. 10/10. 8 oktas | Drizzle (not freezing) or snow grains. | 100%. 10/10. 8 oktas | 200-300 656-984 | 55.0 34.2 | 15.7 60 | |||||||||||||||||
17 | 16.3 61 | 745.6 29.35 994.05 994.05 | 751.2 29.57 1001.52 1001.52 | 95 | Wind blowing from the south-west | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 100%. 10/10. 8 oktas | Drizzle. | 100%. 10/10. 8 oktas | 100-200 328-656 | 14.0 8.7 | 15.5 60 | |||||||||||||||||
16 | 17.0 63 | 745.6 29.35 994.05 994.05 | 751.1 29.57 1001.38 1001.38 | 88 | Wind blowing from the south-west | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 100%. 10/10. 8 oktas | 100%. 10/10. 8 oktas | 200-300 656-984 | 50.0 31.1 | 14.9 59 | ||||||||||||||||||
15 | 14.6 58 | 745.6 29.35 994.05 994.05 | 751.2 29.57 1001.52 1001.52 | 92 | Wind blowing from the south-southwest | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 100%. 10/10. 8 oktas | Drizzle (not freezing) or snow grains. | 100%. 10/10. 8 oktas | 100-200 328-656 | 20.0 12.4 | 13.3 56 | |||||||||||||||||
14 | 12.1 54 | 746.3 29.38 994.99 994.99 | 751.9 29.6 1002.45 1002.45 | 91 | Wind blowing from the south | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 100%. 10/10. 8 oktas | Drizzle (not freezing) or snow grains. | 100%. 10/10. 8 oktas | 200-300 656-984 | 11.0 6.8 | 10.7 51 | |||||||||||||||||
13 | 10.9 52 | 746.8 29.4 995.65 995.65 | 752.5 29.63 1003.25 1003.25 | 92 | Wind blowing from the south | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 100%. 10/10. 8 oktas | Drizzle. | 100%. 10/10. 8 oktas | 300-600 984-1968 | 17.0 10.6 | 9.7 49 | 3.0 0.12 | 6 | |||||||||||||||