Are you considering a trip to Seattle in July? Well, the weather is usually on your side with an average maximum temperature of +24°C and about 10 sunny days. Just keep in mind that there may be some rain, with an average of 9 rainy days and 28 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flightsin one click on Avionero.
Good to know:
July is usually the driest month of the year in Seattle
Average weather
☀️
+24°C
Avg. max. temperature
+9°C
Min.
+35°C
Max.
28 mm
Total precipitation
70%
Avg. humidity
1 m/s
Avg. wind
10 ☀️
Sunny Days
12 ⛅️
Cloudy
9 🌦
Rainy
Our opinion: Seattle has good weather in July.
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Average temperature in Seattle in July
Here are the expected maximum, average and minimum temperatures in Seattle for July based on the historical data.
Last Year
Historical Data
The temperature in July is +27°C on average, with a range between a maximum of +32°C during the day and a minimum of +13°C at night.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +25°C to +25°C.
Is Seattle warm or cold in July?
Seattle is typically warm in July.
Maximum temperatures go up compared to the previous month from +20°C to +24°C. The minimum temperature also goes up from +12°C to +14°C.
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 +9°C to +12°C, with an average of +10°C.The air temperature averaging +24°C is higher than the water temperature.
In July, water temperatures are average relative to the rest of the year:
The warmest water temperatures in Seattle are reached in August, when the average sea temperature rises to +12°C. The coldest water temperatures are in February, with an average of +7°C.
Can you swim in Seattle in July?
We would not recommend swimming in Seattle in July, the water is very cold (+10°C on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
Cold
Below +16°C
🏄♂️
Fresh
16°C - 21°C
🏊
Comfortable
21°C - 25°C
👙
Warm
25°C - 28°C
🔥
Very warm
+28°C and up
You will need a full-body wetsuit, cap, gloves, a warm change of clothes, and a hot drink ready for after your swim.
Climate in Seattle in July
Seattle weather looks like this, on average, in July and the surrounding months.
June
July
August
Avg. temperature
+20°C
+24°C
+24°C
Min. temperature
+5°C
+9°C
+8°C
Max. temperature
+40°C
+35°C
+36°C
Rainfall
56 mm
28 mm
29 mm
Wind
1 m/s
1 m/s
1 m/s
Avg. water temperature
+9°C
+10°C
+12°C
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 +20°C to +24°C 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 speed in Seattle in July based on historical data.
Last Year
Historical Data
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
Amount of rainfall in mm during July in Seattle based on historical data.
Last Year
Historical Data
A chance of rain on a typical day in July stands at 10%, leading to total precipitation of around 11 mm. The maximum amount of rainfall per day is around 6 mm, which is considered light rain.Seattle is amazing in July with as little as 3 rainy days on average, so plan adventures in the great outdoors.
Here’s how July is compared with other months in the amount of precipitation, total mm:
Seattle wettest month is November, where a typical day has a 70% chance of precipitation and 177 mm of rainfall per day. July, on the other hand, is the driest month with a mere 29% chance of precipitation and 28 mm of rainfall per day.
How was the weather last July in Seattle?
This is the weather in Seattle in July 2024:
1 July
☁️
+25°C
2 July
☀️
+25°C
3 July
☀️
+25°C
4 July
☀️
+29°C
5 July
☀️
+31°C
6 July
☀️
+32°C
7 July
☀️
+30°C
8 July
☀️
+26°C
9 July
☀️
+25°C
10 July
☁️
+25°C
11 July
☁️
+24°C
12 July
☁️
+25°C
13 July
☀️
+26°C
14 July
☀️
+29°C
15 July
☀️
+31°C
16 July
☀️
+29°C
17 July
🌧️
+28°C
18 July
☀️
+25°C
19 July
☀️
+30°C
20 July
☀️
+29°C
21 July
☀️
+28°C
22 July
☀️
+26°C
23 July
☀️
+28°C
24 July
☀️
+28°C
25 July
☁️
+23°C
26 July
☀️
+23°C
27 July
☁️
+26°C
28 July
☁️
+26°C
29 July
☀️
+25°C
30 July
☁️
+24°C
31 July
☀️
+25°C
In July 2024 Seattle had 22 sunny days, 8 cloudy days, and 1 rainy days. The average maximum temperature was +27°C, with an absolute maximum of +32°C and a minimum of +23°C. The average humidity was 67%, with a maximum of 100% and a minimum of 36%. The average wind speed was 1 m/s, with a maximum of 5 m/s and a minimum of 0 m/s.
Are you planning a trip in July?
Climate Change over Years
This is how Seattle climate have been changing during last 43 years period.
The climate in Seattle in July has not changed much over the last 43 years.
The average temperature was the lowest in 2011 (+14°C) and the highest in 2014 (+17°C). The driest year was 1985 with only 714 mm of rainfall, and the wettest year was 2021 with 2549 mm.
FAQ
Frequently asked questions about the weather in Seattle in July:
Is July a good time to visit Seattle?
July is a really good time to go to Seattle. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Seattle.
Can you sunbathe in Seattle in July?
July is warm in Seattle. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.
Can you swim in Seattle in July?
Swimming in Seattle in July is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.
Is Seattle rainy in July?
Seattle is usually dry in July. Plan your packing around outdoor activities and exploring.
Is it sunny in Seattle in July?
The amount of sunny days in Seattle during July varies; prepare for a mix of clouds and sun.
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.
