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January Weather in Boston, Philippines

Last updated: August 27, 2025

In January, the average temperature in Boston, Philippines is a pleasant 24°C (76°F). You can expect minimums of around 19°C (67°F) and peaks reaching 30°C (87°F). However, be prepared for some rain, as the area receives an average of 470 mm (18.5 in) over 25 days, coupled with a high humidity level of 90%. Make sure to pack accordingly for this tropical climate!

January Temperature in Boston

In January in Boston, the average temperature is 24°C (76°F), with maximums capable of reaching 30°C (87°F) and minimums dropping to as low as 19°C (67°F). This pleasant weather makes Boston an ideal destination for travelers looking to enjoy comfortable temperatures and outdoor activities.

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

The chart illustrates January 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, January typically has an average temperature of 24°C (76°F), with highs reaching up to 30°C (87°F) and lows dropping to around 19°C (67°F).
JanFebMarAprMayJunJulAugSepOctNovDec767576777979797979787877
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.

January Precipitation in Boston

In Boston in January, the total precipitation amount is 470 mm (18.5 in) spread over 25 days.

January Precipitation Trends in Boston

The chart displays monthly precipitation patterns in Boston, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Boston, January typically receives around 470 mm (18.5 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec470423264159265363355317368397276318
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Boston

In Boston in January humidity is 90%. With an average temperature of 24°C (76°F), this humidity feels like stepping into a warm, thick blanket that envelops you, making every outdoor activity feel more exhausting than invigorating and prompting frequent breaks to cool off in the shade.

January Average Humidity in Boston

This chart illustrates the average monthly humidity levels in Boston, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Boston is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%92%91%87%84%83%82%83%85%82%84%87%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Boston

In Boston in January, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Boston.

Maximum UV Index Levels in Boston for January

The chart shows the monthly maximum UV Index (UVI) for Boston in January, 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 January, the maximum UV index in Boston typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131516161514141515141312
Data source: Boston January 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 January 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 January’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 January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)470 mm (18.5 inches)90%extreme
February Weather24°C (76°F)423 mm (16.6 inches)92%extreme
March Weather25°C (76°F)264 mm (10.4 inches)90%extreme
April Weather25°C (78°F)159 mm (6.3 inches)87%extreme
May Weather26°C (79°F)265 mm (10.4 inches)83%extreme
June Weather26°C (79°F)363 mm (14.3 inches)83%extreme
July Weather26°C (79°F)355 mm (14.0 inches)82%extreme
August Weather26°C (79°F)317 mm (12.5 inches)83%extreme
September Weather26°C (79°F)368 mm (14.5 inches)85%extreme
October Weather26°C (79°F)397 mm (15.6 inches)82%extreme
November Weather25°C (78°F)276 mm (10.8 inches)83%extreme
December Weather25°C (77°F)318 mm (12.5 inches)87%extreme

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