Weather in Seattle in July 2025
- July is usually the driest month of the year in Seattle
Average weather
Average temperature in Seattle in July
Going from a maximum of +90°F during the day to a minimum of +55°F during the night, the temperature in July averages around +81°F.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +77°F to +77°F.
Is Seattle warm or cold in July?
Seattle is typically warm in July.
Maximum temperatures go up compared to the previous month from +68°F to +75°F. The minimum temperature also goes up from +54°F to +57°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
July is one of the warmest months in Seattle, here is the comparison with other months:
Water temperature in Seattle in July
Water in Seattle in July is Cold. It varies from +49°F to +53°F, with an average of +51°F. The air temperature averaging +75°F is higher than the water temperature.
In July, water temperatures are average relative to the rest of the year:
Can you swim in Seattle in July?
Travel to Seattle
Climate in Seattle in July
| June | July | August | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +68°F | +75°F | +75°F | ||||
| Min. temperature | ||||||
| +41°F | +48°F | +46°F | ||||
| Max. temperature | ||||||
| +104°F | +95°F | +97°F | ||||
| Rainfall | ||||||
| 56 mm | 28 mm | 29 mm | ||||
| Wind | ||||||
| 1 m/s | 1 m/s | 1 m/s | ||||
| Avg. water temperature | ||||||
| +47°F | +51°F | +53°F | ||||
| Humidity | ||||||
| 73% | 70% | 71% | ||||
| Air pressure | ||||||
| 1016 HPa | 1016 HPa | 1015 HPa | ||||
| Sunny days | ||||||
| 4 | 10 | 9 | ||||
| Cloudy days | ||||||
| 12 | 12 | 13 | ||||
| Rainy days | ||||||
| 14 | 9 | 9 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
July weather is still as good as in June. It’s getting warmer as July arrives. The average maximum temperature goes up from +68°F to +75°F during the day. As July arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 56 mm to 28 mm. It feels drier, as humidity decreases from 73% to 70%. The average wind speed doesn’t change much during July, staying around 1 m/s. The good news is there are likely to be more sunny days in July, from 4 to 10.
August brings much the same weather, it remains good.
Wind
The average wind speed is 1 m/s getting up to 2 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Seattle is gradually increasing during July, going from 1 m/s to 1 m/s over the course of the month.
Rain
How was the weather last July in Seattle?
Climate Change Over the Years
The climate in Seattle in July has not changed that much over the last 43 years.
The average temperature was the lowest in 2011 (+57°F) and the highest in 2014 (+62°F). The driest year was 1985 with only 714 mm of rainfall, and the wettest year was 2021 with 2549 mm.
FAQ
Is July a good time to visit Seattle?
Can you sunbathe in Seattle in July?
Can you swim in Seattle in July?
Is Seattle rainy in July?
Is it sunny in Seattle in July?
How much does it cost to fly to Seattle in July?
Other cities in USA
Monthly weather in Seattle
Source of the data
For this page, we’ve looked at the typical weather in Seattle, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.