May Weather in Handayama, Japan

Last updated: August 23, 2025

In Handayama, Japan, the average temperature in May is a pleasant 20°C (68°F). However, temperatures can vary widely, with a minimum of 9°C (49°F) and a maximum reaching 32°C (90°F). Expect some rain, as the region receives an average precipitation of 198 mm (7.8 in) over about 12 days. The humidity is quite high, averaging around 81%, making for a uniquely tropical experience!

May Temperature in Handayama

In May in Handayama, the average temperature is 20°C (68°F). Maximums can reach 32°C (90°F) and minimums can be as low as 9°C (49°F). This makes it a pleasant time for travelers seeking mild weather for outdoor activities and exploration.

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

The chart illustrates May temperature patterns in Handayama, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Handayama, May typically has an average temperature of 20°C (68°F), with highs reaching up to 32°C (90°F) and lows dropping to around 9°C (49°F).

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

May Precipitation in Handayama

In Handayama in May, the precipitation amount is 198 mm (7.8 in) over the course of 12 days.

May Precipitation Trends in Handayama

The chart displays monthly precipitation patterns in Handayama, 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 Handayama, May typically receives around 198 mm (7.8 inches) of precipitation spread over approximately 12 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 Handayama

In Handayama in May humidity is 81%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace that can make outdoor activities feel steamy and exhausting, potentially leading travelers to seek shade or a refreshing drink more often.

May Average Humidity in Handayama

This chart illustrates the average monthly humidity levels in Handayama, 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 Handayama is approximately 81%, 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 Handayama

In Handayama in May, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Handayama.

Maximum UV Index Levels in Handayama for May

The chart shows the monthly maximum UV Index (UVI) for Handayama 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 Handayama typically reaches 11, which falls under the extreme exposure category.

Data source: Handayama 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 Handayama Compares to Other Months

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

This table compares monthly weather conditions in Handayama, 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 (44°F)	51 mm (2.0 inches)	76%	moderate
February Weather	7°C (46°F)	76 mm (3.0 inches)	74%	moderate
March Weather	12°C (53°F)	166 mm (6.5 inches)	70%	very high
April Weather	15°C (60°F)	172 mm (6.8 inches)	74%	very high
May Weather	20°C (68°F)	198 mm (7.8 inches)	81%	extreme
June Weather	23°C (74°F)	261 mm (10.3 inches)	88%	extreme
July Weather	27°C (81°F)	408 mm (16.1 inches)	93%	extreme
August Weather	29°C (84°F)	197 mm (7.8 inches)	90%	extreme
September Weather	25°C (77°F)	222 mm (8.7 inches)	86%	very high
October Weather	20°C (68°F)	293 mm (11.5 inches)	83%	high
November Weather	15°C (58°F)	83 mm (3.3 inches)	80%	moderate
December Weather	9°C (49°F)	67 mm (2.6 inches)	78%	moderate