August Weather in Plymouth, United States

Last updated: June 24, 2025

In August, the average temperature in Plymouth, United States hovers around 22°C (71°F). Expect a delightful range, with minimums dipping to 11°C (52°F) and maximums reaching up to 32°C (90°F). Prepare for a bit of wet weather, as precipitation totals 146 mm (5.7 in) over approximately 12 days. With an average humidity level of 81%, be ready for a warm and slightly humid experience!

August Temperature in Plymouth

In August in Plymouth, the average temperature is 22°C (71°F). Maximums can reach 32°C (90°F) and minimums can be as low as 11°C (52°F). This makes it an ideal time for travelers to enjoy a pleasant climate while exploring the diverse attractions of Plymouth.

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 22°C (71°F), with highs reaching up to 32°C (90°F) and lows dropping to around 11°C (52°F).

Data source: Temperature data for Plymouth generated using information from the Copernicus Climate Change Service.

August Precipitation in Plymouth

In Plymouth in August, the total precipitation amount is 146 mm (5.7 in) spread over a duration of 12 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 146 mm (5.7 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in Plymouth

In Plymouth in August humidity is 81%. With an average temperature of 22°C (71°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making outdoor activities somewhat challenging but offering a tropical ambiance perfect for exploring shaded areas and enjoying refreshing drinks.

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 81%, offering insight into how humid the weather typically is during this month.

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.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (17°F)	26 mm (1.0 inches)	87%	low
February Weather	-9°C (17°F)	31 mm (1.2 inches)	90%	moderate
March Weather	0°C (33°F)	56 mm (2.2 inches)	85%	moderate
April Weather	6°C (43°F)	86 mm (3.4 inches)	84%	high
May Weather	15°C (59°F)	120 mm (4.7 inches)	78%	very high
June Weather	22°C (72°F)	84 mm (3.3 inches)	80%	very high
July Weather	24°C (75°F)	101 mm (4.0 inches)	81%	very high
August Weather	22°C (71°F)	146 mm (5.7 inches)	81%	very high
September Weather	18°C (64°F)	115 mm (4.5 inches)	81%	high
October Weather	9°C (48°F)	97 mm (3.8 inches)	84%	moderate
November Weather	1°C (33°F)	34 mm (1.4 inches)	88%	moderate
December Weather	-5°C (23°F)	47 mm (1.9 inches)	84%	low