May Weather in Bethel, United States

Last updated: June 24, 2025

In May, the average temperature in Bethel, United States is a mild 12°C (55°F), but don't be surprised by the extremes—lows can dip to -2°C (29°F) while highs can reach a warm 32°C (90°F). The weather can be quite unpredictable, with 103 mm (4.1 in) of precipitation occurring over approximately 14 days. Expect a relatively high humidity level of 76%, adding a touch of mugginess to this month’s atmosphere.

May Temperature in Bethel

In May in Bethel, the average temperature is 12°C (55°F). Maximum temperatures can reach up to 32°C (90°F), while minimum temperatures can drop as low as -2°C (29°F). With such a broad range of temperatures, travelers should prepare for both warm and chilly conditions during their visit.

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

The chart illustrates May temperature patterns in Bethel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bethel, May typically has an average temperature of 12°C (55°F), with highs reaching up to 32°C (90°F) and lows dropping to around -2°C (29°F).

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

May Precipitation in Bethel

In Bethel in May, the precipitation amount is 103 mm (4.1 in) distributed over a period of 14 days.

May Precipitation Trends in Bethel

The chart displays monthly precipitation patterns in Bethel, 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 Bethel, May typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 14 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 Bethel

In Bethel in May humidity is 76%. With an average temperature of 12°C (55°F), this humidity feels like a damp embrace, making traveling somewhat uncomfortable as the air clings to your skin and can leave you feeling cooler than expected.

May Average Humidity in Bethel

This chart illustrates the average monthly humidity levels in Bethel, 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 Bethel is approximately 76%, 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 Bethel

In Bethel in May, 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 Bethel.

Maximum UV Index Levels in Bethel for May

The chart shows the monthly maximum UV Index (UVI) for Bethel 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 Bethel typically reaches 9, which falls under the very high exposure category.

Data source: Bethel 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 Bethel Compares to Other Months

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

This table compares monthly weather conditions in Bethel, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (19°F)	80 mm (3.2 inches)	89%	moderate
February Weather	-6°C (22°F)	88 mm (3.4 inches)	88%	moderate
March Weather	-2°C (29°F)	81 mm (3.2 inches)	86%	high
April Weather	5°C (42°F)	130 mm (5.1 inches)	84%	very high
May Weather	12°C (55°F)	103 mm (4.1 inches)	76%	very high
June Weather	17°C (64°F)	110 mm (4.3 inches)	72%	very high
July Weather	20°C (69°F)	159 mm (6.2 inches)	66%	very high
August Weather	19°C (67°F)	109 mm (4.3 inches)	64%	very high
September Weather	15°C (60°F)	77 mm (3.0 inches)	72%	high
October Weather	9°C (48°F)	153 mm (6.0 inches)	81%	moderate
November Weather	1°C (33°F)	109 mm (4.3 inches)	87%	moderate
December Weather	-5°C (24°F)	96 mm (3.8 inches)	84%	low