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August Weather in Wailuku, United States

Last updated: June 24, 2025

In August, the average temperature in Wailuku, United States hovers around 27°C (80°F), with a minimum of 22°C (72°F) and a maximum reaching 31°C (89°F). Expect some light rain, with precipitation totaling 25 mm (1.0 in) spread over 5 days. The air is quite humid, with an average humidity level of 85%. Prepare for a warm and slightly sticky ambiance!

August Temperature in Wailuku

In August in Wailuku, the average temperature is 27°C (80°F). The maximum can reach 31°C (89°F), and the minimum can be as low as 22°C (72°F). This pleasant weather makes Wailuku an ideal destination for travelers looking to enjoy warm and comfortable conditions.

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

The chart illustrates August temperature patterns in Wailuku, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wailuku, August typically has an average temperature of 27°C (80°F), with highs reaching up to 31°C (89°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec747373757779798080797775
Data source: Temperature data for Wailuku 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 Wailuku

In Wailuku in August, the total precipitation amount is 25 mm (1.0 in) over a span of 5 days.

August Precipitation Trends in Wailuku

The chart displays monthly precipitation patterns in Wailuku, 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 Wailuku, August typically receives around 25 mm (1.0 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec327552493611232517402545
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Wailuku

In Wailuku in August, humidity is 85%. With an average temperature of 27°C (80°F), this humidity feels like a warm blanket wrapped around you, making travel feel sticky and heavy, but also inviting you to seek out refreshing drinks and cool shade.

August Average Humidity in Wailuku

This chart illustrates the average monthly humidity levels in Wailuku, 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 Wailuku is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%79%79%82%83%84%85%85%84%83%82%81%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Wailuku

In Wailuku in August, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Wailuku.

Maximum UV Index Levels in Wailuku for August

The chart shows the monthly maximum UV Index (UVI) for Wailuku 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 Wailuku typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec710111212131313121188
Data source: Wailuku 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 Wailuku Compares to Other Months

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

This table compares monthly weather conditions in Wailuku, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)32 mm (1.3 inches)78%high
February Weather23°C (73°F)75 mm (2.9 inches)79%very high
March Weather23°C (74°F)52 mm (2.0 inches)79%extreme
April Weather24°C (75°F)49 mm (1.9 inches)82%extreme
May Weather25°C (77°F)36 mm (1.4 inches)83%extreme
June Weather26°C (79°F)11 mm (0.4 inches)84%extreme
July Weather26°C (80°F)23 mm (0.9 inches)85%extreme
August Weather27°C (80°F)25 mm (1.0 inches)85%extreme
September Weather27°C (80°F)17 mm (0.7 inches)84%extreme
October Weather26°C (79°F)40 mm (1.6 inches)83%extreme
November Weather25°C (77°F)25 mm (1.0 inches)82%very high
December Weather24°C (75°F)45 mm (1.8 inches)81%very high

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