Weather archive in Seattle / Tacoma (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 | |
| 2025 September 18, Thursday | 05 | 12.8 55 | 752.5 29.63 1003.25 1003.25 | 765.1 30.12 1020.05 1020.05 | 87 | Calm, no wind | Calm | 50%. 5/10. 4 oktas | 12.2 54 | 25.6 78 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 10.6 51 | ||||||||||||||||
| September 17, Wednesday | 23 | 16.7 62 | 752.5 29.63 1003.25 1003.25 | 765.1 30.12 1020.05 1020.05 | 0.5 0.02 0.67 0.67 | 75 | Wind blowing from the north | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | no clouds no clouds no clouds | 16.7 62 | 26.1 79 | 16.0 9.9 | 12.2 54 | ||||||||||||||||
20 | 20.6 69 | 752.0 29.61 1002.58 1002.58 | 764.6 30.1 1019.38 1019.38 | 0.0 0 0 0 | 57 | Wind blowing from the north-northeast | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 20–30%. 2/10–3/10. 2 oktas | 600-1000 1968-3281 | 16.0 9.9 | 11.7 53 | ||||||||||||||||||
17 | 25.0 77 | 752.0 29.61 1002.58 1002.58 | 764.6 30.1 1019.38 1019.38 | -0.5 -0.02 -0.67 -0.67 | 43 | Wind blowing from the north-northwest | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 20–30%. 2/10–3/10. 2 oktas | 16.7 62 | 25.6 78 | 600-1000 1968-3281 | 16.0 9.9 | 11.7 53 | ||||||||||||||||
14 | 23.3 74 | 752.5 29.63 1003.25 1003.25 | 765.1 30.12 1020.05 1020.05 | 0.3 0.01 0.4 0.4 | 50 | Wind blowing from the north-west | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 20–30%. 2/10–3/10. 2 oktas | 600-1000 1968-3281 | 16.0 9.9 | 12.2 54 | ||||||||||||||||||
11 | 20.0 68 | 752.2 29.61 1002.85 1002.85 | 764.8 30.11 1019.65 1019.65 | 0.4 0.02 0.53 0.53 | 63 | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 20–30%. 2/10–3/10. 2 oktas | 15.0 59 | 26.1 79 | 300-600 984-1968 | 16.0 9.9 | 12.8 55 | |||||||||||||||||
08 | 15.6 60 | 751.8 29.6 1002.32 1002.32 | 764.2 30.09 1018.85 1018.85 | 1.1 0.04 1.47 1.47 | 75 | Wind blowing from the south-southwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 20–30%. 2/10–3/10. 2 oktas | 300-600 984-1968 | 16.0 9.9 | 11.1 52 | ||||||||||||||||||
05 | 16.7 62 | 750.7 29.56 1000.85 1000.85 | 763.3 30.05 1017.65 1017.65 | 0.4 0.02 0.53 0.53 | 65 | Wind blowing from the south | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | no clouds no clouds no clouds | 16.7 62 | 32.8 91 | 16.0 9.9 | 10.0 50 | |||||||||||||||||