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August Weather in Napavine, United States

Last updated: June 24, 2025

In August, the average temperature in Napavine, United States is a pleasant 19°C (66°F). However, temperatures can fluctuate, with a minimum of 7°C (45°F) and a maximum soaring up to 38°C (100°F). Overall, expect a bit of humidity, with an average of 73%. Rainfall is modest, totaling about 11 mm (0.4 in) over approximately 3 days.

August Temperature in Napavine

In August in Napavine, the average temperature is 19°C (66°F). Maximum temperatures can reach as high as 38°C (100°F), while minimums can drop to around 7°C (45°F). This diverse temperature range makes Napavine a suitable destination for travelers seeking both warm days and cooler evenings.

August Weather in Napavine: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Napavine, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Napavine, August typically has an average temperature of 19°C (66°F), with highs reaching up to 38°C (100°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec414044495661656661504440
Data source: Temperature data for Napavine generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Napavine

In Napavine in August, the precipitation amount is 11 mm (0.4 in) over the course of 3 days.

August Precipitation Trends in Napavine

The chart displays monthly precipitation patterns in Napavine, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Napavine, August typically receives around 11 mm (0.4 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec1771591431217656111184125166193
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Napavine

In Napavine in August humidity is 73%. With an average temperature of 19°C (66°F), this humidity feels like a warm embrace, making travel enjoyable yet slightly sticky, as you find yourself seeking shade and refreshing drinks while exploring.

August Average Humidity in Napavine

This chart illustrates the average monthly humidity levels in Napavine, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Napavine is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%85%83%84%84%82%73%74%83%86%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Napavine

In Napavine in August, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Napavine.

Maximum UV Index Levels in Napavine for August

The chart shows the monthly maximum UV Index (UVI) for Napavine in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Napavine typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2356910987532
Data source: Napavine August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How August Weather in Napavine Compares to Other Months

Weather in Napavine varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Napavine, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Napavine, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)177 mm (7.0 inches)86%low
February Weather4°C (40°F)159 mm (6.3 inches)84%moderate
March Weather7°C (45°F)143 mm (5.6 inches)85%moderate
April Weather10°C (50°F)121 mm (4.7 inches)83%high
May Weather13°C (56°F)76 mm (3.0 inches)84%very high
June Weather16°C (61°F)56 mm (2.2 inches)84%very high
July Weather18°C (65°F)11 mm (0.4 inches)82%very high
August Weather19°C (66°F)11 mm (0.4 inches)73%very high
September Weather16°C (61°F)84 mm (3.3 inches)74%high
October Weather10°C (50°F)125 mm (4.9 inches)83%moderate
November Weather7°C (45°F)166 mm (6.5 inches)86%moderate
December Weather4°C (40°F)193 mm (7.6 inches)87%low

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