July weather forecast
Olympia, WA

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The calm Capitol Lake overlooking the Washington State Capitol building in Olympia, Washington
The calm Capitol Lake overlooking the Washington State Capitol building in Olympia, Washington

Weather in July

July in Olympia delivers the quintessential summer experience. It is the warmest month of the year, characterized by long, sunlit days. The reduced rainfall is stark, dropping to 0.39" (10mm)—marking it as the driest month. One can enjoy outdoor dining, local festivals, and other activities without worrying about sudden showers. As the month ends, August continues the trend of warm, sunny days.

Temperature

Olympia in July denotes a subtle temperature transition, adjusting from an average high of an agreeable 70.3°F (21.3°C) in June to a moderately hot 77.9°F (25.5°C). The anticipated average low-temperature for July, a chilly 49.6°F (9.8°C), shows a substantial deviation from the daytime maximums.

Humidity

With an average relative humidity of 71%, July is the least humid month.

Rainfall

The month with the least rainfall in Olympia is July, when the rain falls for 6.9 days and typically collects 0.39" (10mm) of precipitation.

Snowfall

April through October are months without snowfall in Olympia.

Daylight

In July, the average length of the day is 15h and 27min.
On the first day of the month, sunrise is at 5:20 am and sunset at 9:10 pm. On the last day of July, in Olympia, sunrise is at 5:50 am and sunset at 8:45 pm PDT.

Sunshine

The average sunshine in July is 10.1h.

UV index

June and July, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In July, a regular UV index of 5 translates into these guidelines:
Exercise prevention - Protecting skin and eyes from harm is required. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Olympia in July?

July temperatures in Olympia, Washington, vary between a high-temperature of 77.9°F (25.5°C) and a low-temperature of 49.6°F (9.8°C).

What is the least humid month in Olympia?

July is the least humid month in Olympia, Washington, with an average relative humidity of 71%.

What is the average humidity in July in Olympia?

In July, the average relative humidity is 71%.

What is the driest month in Olympia?

The month with the least rainfall in Olympia, Washington, is July, when the rain falls for 6.9 days and typically collects 0.39" (10mm) of precipitation.

How much does it rain in Olympia in July?

In Olympia, in July, it is raining for 6.9 days, with typically 0.39" (10mm) of accumulated precipitation.

When it does not snow in Olympia?

In Olympia, snow does not fall in April through October.

What is the average length of the day in July in Olympia?

The average day length in July is 15h and 27min.

When are sunrise and sunset in July in Olympia?

On the first day of July, sunrise is at 5:20 am and sunset at 9:10 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:45 pm PDT.

How long on average sun shines in July in Olympia?

In July, the average sunshine duration in Olympia, Washington, is 10.1h.

What is the month with the highest UV index in Olympia?

June and July, with an average maximum UV index of 5, are months with the highest UV index in Olympia.

What is the UV index reading in July in Olympia?

In July, the average daily maximum UV index in Olympia is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Olympia, WA

Average temperature in July - Olympia, WA
  • Average high temperature in July: 77.9°F

The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (43°F).

  • Average low temperature in July: 49.6°F

The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (33.4°F).

Average pressure in July
Olympia, WA

Average pressure in July - Olympia, WA
  • Average pressure in July: 30.06"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).

Average wind speed in July
Olympia, WA

Average wind speed in July - Olympia, WA
  • Average wind speed in July: 4.2mph

The windiest months (with the highest average wind speed) are March and November (4.6mph).
The calmest month (with the lowest average wind speed) is September (3.8mph).

Average humidity in July
Olympia, WA

Average humidity in July - Olympia, WA
  • Average humidity in July: 71%

The months with the highest relative humidity are January, November and December (89%).
The month with the lowest relative humidity is July (71%).

Average rainfall in July
Olympia, WA

Average rainfall in July - Olympia, WA
  • Average rainfall in July: 0.39"

The wettest month (with the highest rainfall) is December (5.79").
The driest month (with the least rainfall) is July (0.39").

Average rainfall days in July
Olympia, WA

Average rainfall days in July - Olympia, WA
  • Average rainfall days in July: 6.9 days

The month with the highest number of rainy days is March (20.4 days).
The month with the least rainy days is August (5.5 days).

Average snowfall in July
Olympia, WA

Average snowfall in July - Olympia, WA
  • Average snowfall in July: 0"

The month with the highest snowfall is February (2.32").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in July
Olympia, WA

Average snowfall days in July - Olympia, WA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in July /
Average sunshine in July
Olympia, WA

Average daylight in July / Average sunshine in July - Olympia, WA
  • Average daylight in July: 15h and 2min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in July: 10h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).

Average sunshine days in July
Olympia, WA

Average sunshine days in July - Olympia, WA
  • Average sunshine days in July: 21.9 days

The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is February (8.4 days).

Average UV index in July
Olympia, WA

Average UV index in July - Olympia, WA
  • Average UV index in July: 5

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in July
Olympia, WA

Average cloud cover in July - Olympia, WA
  • Average cloud cover in July: 35

The months with the most cloud cover are January and December (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 35).

Average visibility in July
Olympia, WA

Average visibility in July - Olympia, WA
  • Average visibility in July: 5mi

The months with the highest visibility are June, July and August (5mi).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (4mi).

Olympia, Washington, USA

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