May Weather in Boston, Philippines

Last updated: August 27, 2025

In Boston, Philippines, the average temperature in May hovers around 26°C (79°F). Expect minimums of 21°C (71°F) and maximums reaching 32°C (90°F). The region experiences a significant amount of precipitation, with 265 mm (10.4 in) of rain over 29 days, all while maintaining an average humidity level of 83%.

May Temperature in Boston

In May in Boston, the average temperature is 26°C (79°F). Maximums can reach 32°C (90°F), while minimums can be as low as 21°C (71°F). It's a great time for travelers to enjoy warm weather and outdoor activities.

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

The chart illustrates May 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, May typically has an average temperature of 26°C (79°F), with highs reaching up to 32°C (90°F) and lows dropping to around 21°C (71°F).

Data source: Temperature data for Boston generated using information from the Copernicus Climate Change Service.

May Precipitation in Boston

In Boston in May, the precipitation amount is 265 mm (10.4 in) spread over 29 days.

May Precipitation Trends in Boston

The chart displays monthly precipitation patterns in Boston, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Boston, May typically receives around 265 mm (10.4 inches) of precipitation spread over approximately 29 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Boston

In Boston in May, humidity is 83%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket enveloping you, making travel an exercise in endurance as the air clings to your skin and saps your energy.

May Average Humidity in Boston

This chart illustrates the average monthly humidity levels in Boston, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Boston is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Boston

In Boston in May, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Boston.

Maximum UV Index Levels in Boston for May

The chart shows the monthly maximum UV Index (UVI) for Boston in May, 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 May, the maximum UV index in Boston typically reaches 15, which falls under the extreme exposure category.

Data source: Boston May 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 May 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 May’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 May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (76°F)	470 mm (18.5 inches)	90%	extreme
February Weather	24°C (76°F)	423 mm (16.6 inches)	92%	extreme
March Weather	25°C (76°F)	264 mm (10.4 inches)	90%	extreme
April Weather	25°C (78°F)	159 mm (6.3 inches)	87%	extreme
May Weather	26°C (79°F)	265 mm (10.4 inches)	83%	extreme
June Weather	26°C (79°F)	363 mm (14.3 inches)	83%	extreme
July Weather	26°C (79°F)	355 mm (14.0 inches)	82%	extreme
August Weather	26°C (79°F)	317 mm (12.5 inches)	83%	extreme
September Weather	26°C (79°F)	368 mm (14.5 inches)	85%	extreme
October Weather	26°C (79°F)	397 mm (15.6 inches)	82%	extreme
November Weather	25°C (78°F)	276 mm (10.8 inches)	83%	extreme
December Weather	25°C (77°F)	318 mm (12.5 inches)	87%	extreme