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July Weather in Plymouth, United States

Last updated: June 24, 2025

In Plymouth, United States, the average temperature in July hovers around 23°C (73°F), providing a pleasant climate for outdoor activities. Expect a range from a cool 13°C (55°F) at night to a warm 33°C (91°F) during the day. Rainfall can be expected with an average precipitation of 108 mm (4.3 in) spread across 10 days. Humidity levels tend to be high, averaging around 78%, adding to the tropical feel of the month.

July Temperature in Plymouth

In July in Plymouth, the average temperature is 23°C (73°F). The maximum can reach 33°C (91°F) and the minimum can be as low as 13°C (55°F). This pleasant climate makes Plymouth an ideal destination for travelers seeking enjoyable weather.

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

The chart illustrates July 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, July typically has an average temperature of 23°C (73°F), with highs reaching up to 33°C (91°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec222234435667737064513729
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.

July Precipitation in Plymouth

In Plymouth in July, the total precipitation amount is 108 mm (4.3 in) spread over a duration of 10 days.

July Precipitation Trends in Plymouth

The chart displays monthly precipitation patterns in Plymouth, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Plymouth, July typically receives around 108 mm (4.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec48475710411610210889821074448
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Plymouth

In Plymouth in July, humidity is 78%. With an average temperature of 23°C (73°F), this humidity feels like a warm, sticky embrace, making outdoor activities a little challenging but still enjoyable for travelers who appreciate a tropical atmosphere.

July Average Humidity in Plymouth

This chart illustrates the average monthly humidity levels in Plymouth, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Plymouth is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%85%78%80%78%76%79%83%88%82%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Plymouth

In Plymouth in July, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Plymouth.

Maximum UV Index Levels in Plymouth for July

The chart shows the monthly maximum UV Index (UVI) for Plymouth in July, 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 July, the maximum UV index in Plymouth typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24589101097532
Data source: Plymouth July 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 July 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 July’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 July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)48 mm (1.9 inches)85%low
February Weather-5°C (23°F)47 mm (1.9 inches)85%moderate
March Weather1°C (34°F)57 mm (2.3 inches)85%moderate
April Weather6°C (43°F)104 mm (4.1 inches)85%very high
May Weather13°C (56°F)116 mm (4.6 inches)78%very high
June Weather19°C (67°F)102 mm (4.0 inches)80%very high
July Weather23°C (73°F)108 mm (4.3 inches)78%very high
August Weather21°C (71°F)89 mm (3.5 inches)76%very high
September Weather18°C (64°F)82 mm (3.2 inches)79%high
October Weather11°C (51°F)107 mm (4.2 inches)83%moderate
November Weather3°C (37°F)44 mm (1.7 inches)88%moderate
December Weather-1°C (30°F)48 mm (1.9 inches)81%low

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