Average temperatures, rainfall and packing tips for Seattle, United States in July
July in Seattle is typically warm, with average daytime highs around 26°C and nights near 15°C. It is usually the warmest month of the year in Seattle.
Rainfall is light in July: roughly 16 mm across the whole month, typically the driest month of the year.
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In July, Seattle averages a daytime high of about 26°C and a night-time low of around 15°C, based on recent historical data. That makes it the warmest month of the year there.
Rainfall is light in July: roughly 16 mm across the whole month, typically the driest month of the year.
July is one of the most comfortable months to visit Seattle - daytime temperatures sit in a pleasant range and it's a good pick for sightseeing and time outdoors.