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August Weather in Chilmark, United States

Last updated: June 24, 2025

In August, the average temperature in Chilmark, United States hovers around 22°C (72°F), providing a pleasant climate for outdoor activities. Expect minimum temperatures to dip to 17°C (62°F), while the mercury peaks at a comfortable 25°C (78°F). However, be prepared for some rainfall, with an average precipitation of 90 mm (3.6 in) over 9 days. The air will be fairly humid, with an average humidity level of 76%, making it essential to stay hydrated!

August Temperature in Chilmark

In August in Chilmark, the average temperature is 22°C (72°F), with maximums reaching 25°C (78°F) and minimums dropping as low as 17°C (62°F). This pleasant weather makes it an ideal time for outdoor activities and exploring the attractions.

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

The chart illustrates August temperature patterns in Chilmark, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chilmark, August typically has an average temperature of 22°C (72°F), with highs reaching up to 25°C (78°F) and lows dropping to around 17°C (62°F).
JanFebMarAprMayJunJulAugSepOctNovDec373738455262707167605042
Data source: Temperature data for Chilmark 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 Chilmark

In Chilmark in August, the precipitation amount is 90 mm (3.6 in) spread over the course of 9 days.

August Precipitation Trends in Chilmark

The chart displays monthly precipitation patterns in Chilmark, 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 Chilmark, August typically receives around 90 mm (3.6 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec95118117128123887590111171105130
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Chilmark

In Chilmark in August humidity is 76%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace, making travel slightly uncomfortable as you navigate through the thick, saturated air.

August Average Humidity in Chilmark

This chart illustrates the average monthly humidity levels in Chilmark, 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 Chilmark is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%82%79%75%78%76%76%76%75%80%80%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Chilmark

In Chilmark in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Chilmark.

Maximum UV Index Levels in Chilmark for August

The chart shows the monthly maximum UV Index (UVI) for Chilmark 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 Chilmark typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35689101098642
Data source: Chilmark 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 Chilmark Compares to Other Months

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

This table compares monthly weather conditions in Chilmark, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)95 mm (3.7 inches)84%moderate
February Weather3°C (37°F)118 mm (4.6 inches)84%moderate
March Weather4°C (39°F)117 mm (4.6 inches)82%high
April Weather7°C (46°F)128 mm (5.0 inches)79%very high
May Weather11°C (53°F)123 mm (4.8 inches)75%very high
June Weather16°C (62°F)88 mm (3.4 inches)78%very high
July Weather21°C (70°F)75 mm (3.0 inches)76%very high
August Weather22°C (72°F)90 mm (3.6 inches)76%very high
September Weather19°C (67°F)111 mm (4.4 inches)75%very high
October Weather16°C (61°F)170 mm (6.7 inches)75%high
November Weather10°C (50°F)105 mm (4.1 inches)80%moderate
December Weather5°C (42°F)130 mm (5.1 inches)80%low

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