May Weather in Chikuma, Japan

Last updated: August 23, 2025

In May, the average temperature in Chikuma, Japan is a mild 14°C (58°F), making it an inviting time to explore. However, temperatures can vary significantly, dropping to a chilly 0°C (33°F) at night or rising to a warm 29°C (85°F) during the day. Be prepared for wet weather, as the area receives an average of 227 mm (8.9 in) of precipitation over 17 days. With an average humidity level of 81%, visitors should dress comfortably for both the warmth and moisture.

May Temperature in Chikuma

In May in Chikuma, the average temperature is 14°C (58°F), with maximums reaching 29°C (85°F) and minimums dropping as low as 0°C (33°F). This means you'll want to pack layers to accommodate a range of temperatures during your travels.

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

The chart illustrates May temperature patterns in Chikuma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chikuma, May typically has an average temperature of 14°C (58°F), with highs reaching up to 29°C (85°F) and lows dropping to around 0°C (33°F).

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

May Precipitation in Chikuma

In Chikuma in May, the total precipitation amount is 227 mm (8.9 in) spread over 17 days.

May Precipitation Trends in Chikuma

The chart displays monthly precipitation patterns in Chikuma, 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 Chikuma, May typically receives around 227 mm (8.9 inches) of precipitation spread over approximately 17 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 Chikuma

In Chikuma in May, humidity is 81%. With an average temperature of 14°C (58°F), this humidity feels like a warm blanket wrapping around you, making outdoor adventures sticky and challenging, while also providing a lush, vibrant atmosphere perfect for exploring.

May Average Humidity in Chikuma

This chart illustrates the average monthly humidity levels in Chikuma, 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 Chikuma 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 Chikuma

In Chikuma 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 Chikuma.

Maximum UV Index Levels in Chikuma for May

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

Data source: Chikuma 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 Chikuma Compares to Other Months

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

This table compares monthly weather conditions in Chikuma, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	151 mm (6.0 inches)	88%	moderate
February Weather	-2°C (29°F)	138 mm (5.4 inches)	86%	high
March Weather	3°C (38°F)	172 mm (6.8 inches)	81%	very high
April Weather	8°C (47°F)	182 mm (7.2 inches)	78%	very high
May Weather	14°C (58°F)	227 mm (8.9 inches)	81%	extreme
June Weather	18°C (64°F)	256 mm (10.1 inches)	88%	extreme
July Weather	22°C (72°F)	437 mm (17.2 inches)	92%	extreme
August Weather	23°C (74°F)	276 mm (10.9 inches)	92%	extreme
September Weather	19°C (66°F)	285 mm (11.2 inches)	89%	very high
October Weather	13°C (55°F)	277 mm (10.9 inches)	87%	high
November Weather	6°C (44°F)	119 mm (4.7 inches)	85%	moderate
December Weather	0°C (33°F)	163 mm (6.4 inches)	86%	moderate