May Weather in Heda, Japan

Last updated: August 23, 2025

In May, the average temperature in Heda, Japan is a comfortable 18°C (64°F), with minima dipping to 12°C (53°F) and maxima peaking at 24°C (76°F). Expect 236 mm (9.3 in) of precipitation spread over 12 days, contributing to a relatively high average humidity of 81%. Be prepared for a mix of weather as you explore this vibrant destination!

May Temperature in Heda

In May in Heda, the average temperature is 18°C (64°F). The maximum can reach 24°C (76°F), and the minimum can be as low as 12°C (53°F). This mild climate makes Heda an ideal destination for travelers seeking comfortable weather for outdoor activities and sightseeing.

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

The chart illustrates May temperature patterns in Heda, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heda, May typically has an average temperature of 18°C (64°F), with highs reaching up to 24°C (76°F) and lows dropping to around 12°C (53°F).

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

May Precipitation in Heda

In Heda in May, the precipitation amount is 236 mm (9.3 in) and it falls over the course of 12 days.

May Precipitation Trends in Heda

The chart displays monthly precipitation patterns in Heda, 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 Heda, May typically receives around 236 mm (9.3 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 Heda

In Heda in May, humidity is 81%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making travel both refreshing and slightly stifling at the same time.

May Average Humidity in Heda

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

In Heda 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 Heda.

Maximum UV Index Levels in Heda for May

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

Data source: Heda 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 Heda Compares to Other Months

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

This table compares monthly weather conditions in Heda, 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 (46°F)	71 mm (2.8 inches)	76%	moderate
February Weather	8°C (46°F)	99 mm (3.9 inches)	74%	high
March Weather	11°C (52°F)	219 mm (8.6 inches)	70%	very high
April Weather	14°C (57°F)	226 mm (8.9 inches)	74%	very high
May Weather	18°C (64°F)	236 mm (9.3 inches)	81%	extreme
June Weather	21°C (70°F)	286 mm (11.3 inches)	88%	extreme
July Weather	24°C (76°F)	437 mm (17.2 inches)	93%	extreme
August Weather	26°C (80°F)	223 mm (8.8 inches)	90%	extreme
September Weather	24°C (75°F)	242 mm (9.5 inches)	86%	very high
October Weather	19°C (67°F)	296 mm (11.6 inches)	83%	high
November Weather	15°C (59°F)	102 mm (4.0 inches)	80%	moderate
December Weather	10°C (51°F)	84 mm (3.3 inches)	78%	moderate