Mercer Island Weather in July
Mercer Island in July averages 25°C (77°F) during the day and 14°C (57°F) at night. This is the driest month of the year, and part of the summer season.
Rainfall in Mercer Island in July
Expect fewer clouds and less rain as the month goes on. This makes it an ideal time for outdoor activities. Climate statistics over the past 30 years suggest around 4 days of rain, with 15 mm (0.6 in) average for the month. The occasional light shower is possible, but rain is rarely an issue this month.
Temperature in Mercer Island in July
The perfect temperature in Mercer Island in July makes it a solid month to visit, with 25°C (77°F) during the day and 14°C (57°F) at night. July is part of summer. Overall, the month follows a fairly predictable daily temperature pattern. Nights drop to around 14°C (57°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Mercer Island in July
Enjoy a sunny month with about 312 hours of sunshine, the clear skies make Mercer Island even more beautiful.
Wind Speed in Mercer Island in July
July sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.If you favor pleasant temperatures and minimal rainfall, July is one of the best months to visit Mercer Island.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Mercer Island's climate page.
Mercer Island Temperature in July
Min Temperature
14°C (57°F)
Max Temperature
25°C (77°F)
Chance of Rain
13%
Precipitation
15 mm (0.6 in)
Rainy days
4 days
Humidity
65% *
Windspeed
4 m/s (8 knots) *
Sunshine
312 hours *
Percentage Sunshine
65% *
Best Places in the United States of America in July
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in July →
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What to Wear in Mercer Island in July
Comfortable temperatures call for an easy wardrobe in July. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Dry conditions mean you won't need to worry about rain protection. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Mercer Island in July
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Mercer Island's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Mercer Island climate overview or explore weather in the United States of America.
