Weather in Seattle in August
In an average August, Seattle sees a daily high around 77°F and a low around 55°F, based on 1980–2026 of local climate records.
| Average high | 77°F |
|---|---|
| Typical high range | 68°F to 86°F |
| Average low | 55°F |
| Typical low range | 50°F to 60°F |
| Average daily precipitation | 0.00 in |
August records
The most extreme August on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total August accumulation.
High
Highest
99°F
1981-08-09
Lowest
57°F
1999-08-30
Low
Highest
68°F
2022-08-19
Lowest
38°F
1980-08-29
Feels-like
Highest
130°F
1981-08-09
Lowest
34°F
1980-08-29
Humidity
Highest
16.9 g/m³
1992-08-13
Lowest
7.6 g/m³
1980-08-29
Wind
Highest
20 mph
2015-08-29
Lowest
3 mph
2004-08-30
Gust
Highest
57 mph
2015-08-29
Lowest
11 mph
2026-08-11
Precip
Wettest
7.38 in
2004
Driest
0.19 in
2012
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