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June Weather in Boston, Ireland

Last updated: August 23, 2025

In Boston, Ireland, the average temperature in June is a comfortable 14°C (57°F). Expect lows of 5°C (41°F) and highs reaching up to 30°C (86°F). During this month, prepare for 76 mm (3.0 in) of precipitation spread over approximately 15 days. The average humidity hovers around 83%, creating a lush and vibrant atmosphere.

June Temperature in Boston

In June in Boston, the average temperature is 14°C (57°F). The maximum can reach 30°C (86°F) and the minimum can be as low as 5°C (41°F). This variation makes it a perfect time for travelers to enjoy a range of outdoor activities while packing for both warm and cool weather.

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 14°C (57°F), with highs reaching up to 30°C (86°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec434445485357605956514745
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 76 mm (3.0 in), recorded over a span of 15 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 76 mm (3.0 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec8613811261687684133102121105131
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 83%. With an average temperature of 14°C (57°F), this humidity feels like you're stepping into a warm, damp embrace that can make outdoor activities quite uncomfortable, often leaving you sweaty and exhausted if you're not prepared with plenty of water and breathable clothing.

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 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%87%86%83%83%85%85%88%91%92%89%
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 is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to 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 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
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 Weather6°C (44°F)86 mm (3.4 inches)88%low
February Weather7°C (44°F)138 mm (5.4 inches)88%low
March Weather7°C (45°F)112 mm (4.4 inches)87%moderate
April Weather9°C (49°F)61 mm (2.4 inches)86%moderate
May Weather12°C (53°F)68 mm (2.7 inches)83%high
June Weather14°C (57°F)76 mm (3.0 inches)83%very high
July Weather16°C (60°F)84 mm (3.3 inches)85%very high
August Weather15°C (59°F)133 mm (5.2 inches)85%high
September Weather13°C (56°F)102 mm (4.0 inches)88%moderate
October Weather11°C (52°F)121 mm (4.8 inches)91%moderate
November Weather8°C (47°F)105 mm (4.1 inches)92%low
December Weather7°C (45°F)131 mm (5.2 inches)89%low

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