Weather in Seattle, Washington, United States in August
In an average August, Seattle sees a daily high around 75°F and a low around 56°F, based on 1981–2026 of local climate records.
| Average high | 75°F |
|---|---|
| Typical high range | 67°F to 83°F |
| Average low | 56°F |
| Typical low range | 52°F to 61°F |
| Average daily precipitation | 0.00 in |
August records
The most extreme August on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total August accumulation.
High
Highest
95°F
1981-08-09
Lowest
52°F
2025-08-04
Low
Highest
69°F
2021-08-13
Lowest
45°F
1984-08-28
Feels-like
Highest
114°F
1981-08-09
Lowest
42°F
2010-08-29
Humidity
Highest
16.8 g/m³
1998-08-14
Lowest
8.3 g/m³
1985-08-28
Wind
Highest
20 mph
2015-08-29
Lowest
1 mph
1998-08-25
Precip
Wettest
4.24 in
2004
Driest
0.10 in
2012
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