August weather forecast
Napavine, WA

Share

Weather in August

August, the last month of the summer in Napavine, is another warm month, with an average temperature varying between 50°F (10°C) and 77.5°F (25.3°C).

Temperature

In Napavine, August records the highest average temperatures, peaking at 77.5°F (25.3°C) and reaching a low of 50°F (10°C).

Humidity

In Napavine, the average relative humidity in August is 74%.

Rainfall

In Napavine, during August, the rain falls for 6.4 days and regularly aggregates up to 0.55" (14mm) of precipitation. Throughout the year, there are 185.5 rainfall days, and 36.1" (917mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in August is 14h and 8min.
On the first day of August, sunrise is at 5:53 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 7:51 pm PDT.

Sunshine

The month with the most sunshine is August, with an average of 10.2h of sunshine.

UV index

In August, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 4 in August translates into these instructions:
Act with care - Obligation to protect against skin and eye damage is highlighted. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Jun 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest?

In Napavine, August is the warmest month, with temperatures averaging a high of 77.5°F (25.3°C) and a low of 50°F (10°C).

What is the average August temperature?

The high-temperature, in August, in Napavine, is 77.5°F (25.3°C), while the low-temperature averages to 50°F (10°C).

What is the average humidity in August?

The average relative humidity in August is 74%.

How many days does it rain in August in Napavine?

In August, the rain falls for 6.4 days. Throughout August, 0.55" (14mm) of precipitation is accumulated.

When it does not snow?

April through October are months without snowfall.

How many hours of daylight does Napavine have in August?

In August, the average day length is 14h and 8min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 5:53 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 7:51 pm PDT.

What month has the most sunshine?

The month with the most sunshine is August, with an average of 10.2h of sunshine.

How many hours of sunshine does Napavine have in August?

In August, the average sunshine duration is 10.2h.

What is the UV index intensity in August in Napavine?

In August, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
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 August
Napavine, WA

Average temperature in August - Napavine, WA
  • Average high temperature in August: 77.5°F

The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (42.6°F).

  • Average low temperature in August: 50°F

The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).

Average pressure in August
Napavine, WA

Average pressure in August - Napavine, WA
  • Average pressure in August: 30.02"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.02"Hg).

Average wind speed in August
Napavine, WA

Average wind speed in August - Napavine, WA
  • Average wind speed in August: 3.7mph

The windiest months (with the highest average wind speed) are January, March and November (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).

Average humidity in August
Napavine, WA

Average humidity in August - Napavine, WA
  • Average humidity in August: 74%

The months with the highest relative humidity are January, February, November and December (89%).
The month with the lowest relative humidity is July (73%).

Average rainfall in August
Napavine, WA

Average rainfall in August - Napavine, WA
  • Average rainfall in August: 0.55"

The wettest month (with the highest rainfall) is January (5.51").
The driest month (with the least rainfall) is July (0.47").

Average rainfall days in August
Napavine, WA

Average rainfall days in August - Napavine, WA
  • Average rainfall days in August: 6.4 days

The month with the highest number of rainy days is March (21.5 days).
The month with the least rainy days is August (6.4 days).

Average snowfall in August
Napavine, WA

Average snowfall in August - Napavine, WA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.93").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Napavine, WA

Average snowfall days in August - Napavine, WA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Napavine, WA

Average daylight in August / Average sunshine in August - Napavine, WA
  • Average daylight in August: 14h and 1min

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 August: 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 30min).

Average sunshine days in August
Napavine, WA

Average sunshine days in August - Napavine, WA
  • Average sunshine days in August: 20.8 days

The months with the most sunshine days are July and August (20.8 days).
The month with the least sunshine days is February (7.6 days).

Average UV index in August
Napavine, WA

Average UV index in August - Napavine, WA
  • Average UV index in August: 4

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

Average cloud cover in August
Napavine, WA

Average cloud cover in August - Napavine, WA
  • Average cloud cover in August: 38

The months with the most cloud cover are January, February and December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 38).

Average visibility in August
Napavine, WA

Average visibility in August - Napavine, WA
  • Average visibility in August: 4mi

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

Napavine, Washington, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location