SeaTac Weather in July
SeaTac 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 SeaTac in July
With the lowest rainfall figures of the year, conditions are ideal for exploring the outdoors. You can expect rain on around 4 days based on historical patterns, with 14 mm (0.6 in) average for the month. When rain does fall, showers tend to be light and brief. Most days will be dry.
Temperature in SeaTac in July
July tends to be one of the perfect months in SeaTac, with 25°C (77°F) in the afternoon and 14°C (57°F) overnight. During July, you'll experience the summer season. Conditions stay fairly consistent through the month, making it easier to plan what to wear. With lows of 14°C (57°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest. On average, it is the warmest month of the year.
Sunshine in SeaTac in July
The days are predominantly sunny, with an estimated total of around 312 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.
Wind Speed in SeaTac 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.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July, August and September typically offer the best weather for SeaTac.
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 SeaTac's climate page.
SeaTac Temperature in July
Min Temperature
14°C (57°F)
Max Temperature
25°C (77°F)
Chance of Rain
13%
Precipitation
14 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 →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in SeaTac in July
Warm but pleasant conditions in SeaTac in July. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. 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 SeaTac 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 SeaTac's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full SeaTac climate overview or explore weather in the United States of America.
