May Weather in Suffolk, United States

Last updated: June 24, 2025

In May, the average temperature in Suffolk, United States is a delightful 20°C (69°F). Visitors can expect a minimum temperature of 4°C (39°F), while the mercury can soar to a maximum of 36°C (98°F). During this month, the area receives an average precipitation of 120 mm (4.7 in) over approximately 11 days, contributing to a humidity level of 80% that enhances the region's lush ambiance.

May Temperature in Suffolk

In May in Suffolk, the average temperature is 20°C (69°F). Maximum temperatures can reach 36°C (98°F), while minimums can drop to as low as 4°C (39°F). It's advisable to pack for a range of weather conditions to ensure a comfortable trip.

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

The chart illustrates May temperature patterns in Suffolk, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Suffolk, May typically has an average temperature of 20°C (69°F), with highs reaching up to 36°C (98°F) and lows dropping to around 4°C (39°F).

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

May Precipitation in Suffolk

In Suffolk in May, the precipitation amount is 120 mm (4.7 in) during a span of 11 days.

May Precipitation Trends in Suffolk

The chart displays monthly precipitation patterns in Suffolk, 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 Suffolk, May typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 11 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 Suffolk

In Suffolk in May, humidity is 80%. With an average temperature of 20°C (69°F), this humidity feels like a warm blanket enveloping you, making every step slightly more challenging as you navigate the air that clings to your skin, often leaving you longing for a cool breeze while exploring the sights.

May Average Humidity in Suffolk

This chart illustrates the average monthly humidity levels in Suffolk, 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 Suffolk is approximately 80%, 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 Suffolk

In Suffolk in May, 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 Suffolk.

Maximum UV Index Levels in Suffolk for May

The chart shows the monthly maximum UV Index (UVI) for Suffolk 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 Suffolk typically reaches 10, which falls under the very high exposure category.

Data source: Suffolk 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 Suffolk Compares to Other Months

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

This table compares monthly weather conditions in Suffolk, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (42°F)	91 mm (3.6 inches)	84%	moderate
February Weather	8°C (47°F)	102 mm (4.0 inches)	83%	high
March Weather	11°C (51°F)	84 mm (3.3 inches)	82%	very high
April Weather	16°C (61°F)	101 mm (4.0 inches)	81%	very high
May Weather	20°C (69°F)	120 mm (4.7 inches)	80%	very high
June Weather	24°C (76°F)	118 mm (4.6 inches)	82%	very high
July Weather	27°C (81°F)	140 mm (5.5 inches)	81%	extreme
August Weather	26°C (79°F)	168 mm (6.6 inches)	81%	very high
September Weather	23°C (75°F)	130 mm (5.1 inches)	78%	very high
October Weather	19°C (66°F)	84 mm (3.3 inches)	80%	very high
November Weather	11°C (52°F)	76 mm (3.0 inches)	84%	moderate
December Weather	8°C (47°F)	89 mm (3.5 inches)	84%	moderate