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August Weather in North Boston, United States

Last updated: June 24, 2025

In North Boston, United States, the average temperature in August is a pleasant 21°C (70°F). Expect a comfortable range, with minimums dipping to 8°C (47°F) and maximums soaring to 31°C (88°F). However, be prepared for some rain, as 85 mm (3.3 in) of precipitation may fall over 13 days. With an average humidity of 72%, it's a month that invites both warmth and a touch of moisture.

August Temperature in North Boston

In August in North Boston, the average temperature is 21°C (70°F), with maximums reaching up to 31°C (88°F) and minimums dropping to as low as 8°C (47°F). Overall, this weather makes it a great time for travelers to explore and enjoy outdoor activities in North Boston.

August Weather in North Boston: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in North Boston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In North Boston, August typically has an average temperature of 21°C (70°F), with highs reaching up to 31°C (88°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec272935455866727064543932
Data source: Temperature data for North 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.

August Precipitation in North Boston

In North Boston in August, the precipitation amount is 85 mm (3.3 in) spread over 13 days.

August Precipitation Trends in North Boston

The chart displays monthly precipitation patterns in North Boston, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In North Boston, August typically receives around 85 mm (3.3 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec87908011910789127857613499105
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in North Boston

In North Boston in August, humidity is 72%. With an average temperature of 21°C (70°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities a bit sticky and sweaty, but still manageable for traveling if you stay hydrated and take regular breaks in the shade.

August Average Humidity in North Boston

This chart illustrates the average monthly humidity levels in North Boston, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in North Boston is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%91%88%88%82%80%77%72%76%83%88%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in North Boston

In North Boston in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in North Boston.

Maximum UV Index Levels in North Boston for August

The chart shows the monthly maximum UV Index (UVI) for North Boston in August, 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 August, the maximum UV index in North Boston typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098642
Data source: North Boston August 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 August Weather in North Boston Compares to Other Months

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

This table compares monthly weather conditions in North Boston, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)87 mm (3.4 inches)91%moderate
February Weather-2°C (29°F)90 mm (3.5 inches)91%moderate
March Weather2°C (35°F)80 mm (3.2 inches)88%high
April Weather7°C (45°F)119 mm (4.7 inches)88%very high
May Weather14°C (58°F)107 mm (4.2 inches)82%very high
June Weather19°C (67°F)89 mm (3.5 inches)79%very high
July Weather22°C (72°F)127 mm (5.0 inches)77%very high
August Weather21°C (70°F)85 mm (3.3 inches)72%very high
September Weather18°C (64°F)76 mm (3.0 inches)76%very high
October Weather12°C (54°F)134 mm (5.3 inches)83%high
November Weather4°C (40°F)99 mm (3.9 inches)88%moderate
December Weather0°C (33°F)105 mm (4.1 inches)87%low

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