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June Weather in Boston, United States

Last updated: June 24, 2025

In June, the average temperature in Boston, United States is a pleasant 23°C (73°F). Expect a delightful range, with minimums dipping to 15°C (59°F) and maximums reaching up to 28°C (83°F). However, don’t forget your umbrella, as precipitation averages 73 mm (2.9 in) across about 7 days. With an average humidity of 82%, it's a month where you can truly feel the warmth and moisture in the air!

June Temperature in Boston

In June in Boston, the average temperature is 23°C (73°F), with maximums reaching up to 28°C (83°F) and minimums dropping as low as 15°C (59°F). This pleasant weather makes it an ideal time for outdoor exploration and activities.

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 23°C (73°F), with highs reaching up to 28°C (83°F) and lows dropping to around 15°C (59°F).
JanFebMarAprMayJunJulAugSepOctNovDec414346556373797874675447
Data source: Temperature data for Boston 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 Boston

In Boston in June, the precipitation amount is 73 mm (2.9 in) during a span of 7 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 73 mm (2.9 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec941198786897310710410510891102
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Boston

In Boston in June, humidity is 82%. With an average temperature of 23°C (73°F), this humidity feels like a warm, sticky embrace, making outdoor activities feel a bit more strenuous but offering a tropical ambiance perfect for leisurely strolls and relaxed sightseeing.

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 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%82%81%80%82%81%81%78%80%84%84%
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 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 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 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101011108753
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 Weather5°C (41°F)94 mm (3.7 inches)84%moderate
February Weather6°C (43°F)119 mm (4.7 inches)83%moderate
March Weather8°C (47°F)87 mm (3.4 inches)82%high
April Weather13°C (55°F)86 mm (3.4 inches)81%very high
May Weather17°C (64°F)89 mm (3.5 inches)80%very high
June Weather23°C (73°F)73 mm (2.9 inches)82%very high
July Weather26°C (79°F)107 mm (4.2 inches)81%extreme
August Weather26°C (78°F)104 mm (4.1 inches)81%very high
September Weather23°C (75°F)105 mm (4.1 inches)78%very high
October Weather19°C (67°F)108 mm (4.2 inches)80%high
November Weather12°C (54°F)91 mm (3.6 inches)84%moderate
December Weather8°C (47°F)102 mm (4.0 inches)84%moderate

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