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June Weather in Acton, United States

Last updated: June 24, 2025

In Acton, United States, the average temperature in June hovers around 20°C (69°F). Expect a range from a cool 5°C (41°F) to a warm 37°C (99°F). During this month, precipitation averages 85 mm (3.4 in) over 11 days, contributing to an average humidity of 72%. Enjoy the mix of weather while planning your activities!

June Temperature in Acton

In June in Acton, the average temperature is 20°C (69°F). Maximum temperatures can reach 37°C (99°F), while minimums can drop as low as 5°C (41°F). This makes Acton an ideal destination for travelers seeking a mix of warm days and cooler evenings.

June Weather in Acton: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Acton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Acton, June typically has an average temperature of 20°C (69°F), with highs reaching up to 37°C (99°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec303237485969747366554233
Data source: Temperature data for Acton 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.

June Precipitation in Acton

In Acton in June, the precipitation amount is 85 mm (3.4 in) over the course of 11 days.

June Precipitation Trends in Acton

The chart displays monthly precipitation patterns in Acton, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Acton, June typically receives around 85 mm (3.4 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec6985861248685133857913297118
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Acton

In Acton in June humidity is 72%. With an average temperature of 20°C (69°F), this humidity feels like a warm, almost tropical embrace, making it perfect for leisurely strolls but challenging for those unaccustomed to the moist air.

June Average Humidity in Acton

This chart illustrates the average monthly humidity levels in Acton, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Acton is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%82%80%72%72%67%66%71%79%84%81%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Acton

In Acton in June, 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 Acton.

Maximum UV Index Levels in Acton for June

The chart shows the monthly maximum UV Index (UVI) for Acton in June, 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 June, the maximum UV index in Acton typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3568910997642
Data source: Acton June 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 June Weather in Acton Compares to Other Months

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

This table compares monthly weather conditions in Acton, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)69 mm (2.7 inches)86%moderate
February Weather0°C (32°F)85 mm (3.3 inches)84%moderate
March Weather3°C (38°F)86 mm (3.4 inches)82%high
April Weather9°C (48°F)124 mm (4.9 inches)80%very high
May Weather15°C (59°F)86 mm (3.4 inches)72%very high
June Weather20°C (69°F)85 mm (3.4 inches)72%very high
July Weather23°C (74°F)133 mm (5.3 inches)67%very high
August Weather23°C (73°F)85 mm (3.4 inches)66%very high
September Weather19°C (66°F)79 mm (3.1 inches)71%high
October Weather13°C (55°F)132 mm (5.2 inches)78%high
November Weather5°C (42°F)97 mm (3.8 inches)84%moderate
December Weather0°C (33°F)118 mm (4.6 inches)81%low

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