nomadseason

June Weather in Boston, United States

Last updated: June 24, 2025

In June, the average temperature in Boston, United States hovers around 27°C (80°F). During this month, you can expect temperatures to range from a pleasant 16°C (61°F) to a sweltering 38°C (100°F). With 157 mm (6.2 in) of precipitation spread over 17 days, it's wise to be prepared for some rain. Additionally, the average humidity levels sit at a comfortable 74%, adding to the tropical charm of this destination.

June Temperature in Boston

In June in Boston, the average temperature is 27°C (80°F). Maximums can reach 38°C (100°F) and minimums can be as low as 16°C (61°F). It's an ideal time for travelers to enjoy warm days while also being prepared for cooler evenings.

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

The chart illustrates June temperature patterns in Boston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Boston, June typically has an average temperature of 27°C (80°F), with highs reaching up to 38°C (100°F) and lows dropping to around 16°C (61°F).
JanFebMarAprMayJunJulAugSepOctNovDec535963687680818180736056
Data source: Temperature data for Boston generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

June Precipitation in Boston

In Boston in June, the precipitation amount is 157 mm (6.2 in) spread over 17 days.

June Precipitation Trends in Boston

The chart displays monthly precipitation patterns in Boston, 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 Boston, June typically receives around 157 mm (6.2 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec72965280741571481371107350118
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

June Humidity in Boston

In Boston in June, humidity is 74%. With an average temperature of 27°C (80°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities sticky and uncomfortable for traveling.

June Average Humidity in Boston

This chart illustrates the average monthly humidity levels in Boston, 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 Boston is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%82%80%76%73%74%80%79%83%77%84%88%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Boston

In Boston in June, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Boston.

Maximum UV Index Levels in Boston for June

The chart shows the monthly maximum UV Index (UVI) for Boston 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 Boston typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589101111111110864
Data source: Boston 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 Boston Compares to Other Months

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

This table compares monthly weather conditions in Boston, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)72 mm (2.8 inches)85%moderate
February Weather15°C (60°F)96 mm (3.8 inches)82%very high
March Weather17°C (64°F)52 mm (2.1 inches)80%very high
April Weather20°C (69°F)80 mm (3.1 inches)76%very high
May Weather25°C (76°F)74 mm (2.9 inches)73%extreme
June Weather27°C (80°F)157 mm (6.2 inches)74%extreme
July Weather27°C (81°F)148 mm (5.8 inches)80%extreme
August Weather27°C (82°F)137 mm (5.4 inches)79%extreme
September Weather26°C (80°F)110 mm (4.3 inches)83%very high
October Weather23°C (74°F)73 mm (2.9 inches)77%very high
November Weather16°C (61°F)50 mm (2.0 inches)84%high
December Weather13°C (56°F)117 mm (4.6 inches)88%moderate

Compare Boston's Climate with Cities Worldwide