May Weather in Wassamu, Japan

Last updated: August 23, 2025

In May, the average temperature in Wassamu, Japan hovers around 12°C (54°F). However, be prepared for a range of temperatures, with a minimum of -2°C (29°F) and a maximum reaching 32°C (89°F). Expect about 101 mm (4.0 in) of precipitation spread over 14 days, accompanied by a high average humidity of 86%.

May Temperature in Wassamu

In May in Wassamu, the average temperature is 12°C (54°F). Maximums can reach 32°C (89°F), and minimums can drop as low as -2°C (29°F). Travelers should be prepared for a wide range of temperatures, making it essential to pack both light and warm clothing.

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

The chart illustrates May temperature patterns in Wassamu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wassamu, May typically has an average temperature of 12°C (54°F), with highs reaching up to 32°C (89°F) and lows dropping to around -2°C (29°F).

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

May Precipitation in Wassamu

In Wassamu in May, the precipitation amount is 101 mm (4.0 in) over the course of 14 days.

May Precipitation Trends in Wassamu

The chart displays monthly precipitation patterns in Wassamu, 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 Wassamu, May typically receives around 101 mm (4.0 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 Wassamu

In Wassamu in May, humidity is 86%. With an average temperature of 12°C (54°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities uncomfortable and travel challenging due to the heavy, muggy atmosphere.

May Average Humidity in Wassamu

This chart illustrates the average monthly humidity levels in Wassamu, 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 Wassamu is approximately 86%, 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 Wassamu

In Wassamu in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Wassamu.

Maximum UV Index Levels in Wassamu for May

The chart shows the monthly maximum UV Index (UVI) for Wassamu 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 Wassamu typically reaches 8, which falls under the very high exposure category.

Data source: Wassamu 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 Wassamu Compares to Other Months

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

This table compares monthly weather conditions in Wassamu, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (18°F)	69 mm (2.7 inches)	84%	low
February Weather	-7°C (21°F)	88 mm (3.5 inches)	83%	moderate
March Weather	-1°C (31°F)	92 mm (3.6 inches)	81%	high
April Weather	5°C (42°F)	75 mm (3.0 inches)	81%	high
May Weather	12°C (54°F)	101 mm (4.0 inches)	86%	very high
June Weather	15°C (59°F)	98 mm (3.8 inches)	87%	very high
July Weather	20°C (68°F)	126 mm (4.9 inches)	93%	very high
August Weather	20°C (68°F)	191 mm (7.5 inches)	95%	very high
September Weather	16°C (61°F)	92 mm (3.6 inches)	88%	very high
October Weather	9°C (49°F)	153 mm (6.0 inches)	83%	moderate
November Weather	3°C (37°F)	159 mm (6.2 inches)	79%	moderate
December Weather	-5°C (24°F)	127 mm (5.0 inches)	80%	low