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August Weather in Plymouth, United States

Last updated: June 24, 2025

In Plymouth, United States, the average temperature in August hovers around 23°C (73°F). During this time, you can expect a minimum of 9°C (49°F) and a maximum of 34°C (93°F). Precipitation averages 74 mm (2.9 in) over approximately 11 days of the month, contributing to an average humidity level of 80%.

August Temperature in Plymouth

In August in Plymouth, the average temperature is 23°C (73°F), with maximums reaching 34°C (93°F) and minimums dipping as low as 9°C (49°F). This moderate climate makes Plymouth an ideal destination for travelers seeking pleasant weather.

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

The chart illustrates August temperature patterns in Plymouth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Plymouth, August typically has an average temperature of 23°C (73°F), with highs reaching up to 34°C (93°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec272837476070757366543933
Data source: Temperature data for Plymouth 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 Plymouth

In Plymouth in August, the precipitation amount is 74 mm (2.9 in) spread over the course of 11 days.

August Precipitation Trends in Plymouth

The chart displays monthly precipitation patterns in Plymouth, 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 Plymouth, August typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec6466738711785927462987754
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Plymouth

In Plymouth in August humidity is 80%. With an average temperature of 23°C (73°F), this humidity feels like a warm blanket enveloping you, making outdoor activities slightly sticky and requiring frequent breaks in shaded areas to stay comfortable while exploring.

August Average Humidity in Plymouth

This chart illustrates the average monthly humidity levels in Plymouth, 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 Plymouth is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%85%86%80%80%80%81%80%84%90%86%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Plymouth

In Plymouth 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 Plymouth.

Maximum UV Index Levels in Plymouth for August

The chart shows the monthly maximum UV Index (UVI) for Plymouth 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 Plymouth typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24599101097542
Data source: Plymouth 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 Plymouth Compares to Other Months

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

This table compares monthly weather conditions in Plymouth, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)64 mm (2.5 inches)88%low
February Weather-2°C (29°F)66 mm (2.6 inches)87%moderate
March Weather3°C (38°F)73 mm (2.9 inches)85%moderate
April Weather8°C (47°F)86 mm (3.4 inches)86%very high
May Weather15°C (60°F)117 mm (4.6 inches)80%very high
June Weather21°C (71°F)85 mm (3.3 inches)80%very high
July Weather24°C (75°F)91 mm (3.6 inches)80%very high
August Weather23°C (73°F)74 mm (2.9 inches)80%very high
September Weather19°C (66°F)62 mm (2.4 inches)80%high
October Weather12°C (55°F)98 mm (3.9 inches)84%moderate
November Weather4°C (40°F)77 mm (3.0 inches)89%moderate
December Weather0°C (33°F)54 mm (2.1 inches)86%low

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