May Weather in Hayakawa, Japan

Last updated: August 23, 2025

In May, the average temperature in Hayakawa, Japan hovers around 14°C (57°F). Visitors can expect a range with a minimum temperature of 0°C (32°F) and a maximum reaching 27°C (81°F). The region experiences significant precipitation, totaling about 191 mm (7.5 in) over approximately 15 days, contributing to an average humidity of 81%.

May Temperature in Hayakawa

In May in Hayakawa, the average temperature is 14°C (57°F), with maximums reaching up to 27°C (81°F) and minimums dropping as low as 0°C (32°F). This makes it an ideal time for travelers to enjoy a mix of mild days and cooler nights, so be sure to pack layers for your visit.

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

The chart illustrates May temperature patterns in Hayakawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hayakawa, May typically has an average temperature of 14°C (57°F), with highs reaching up to 27°C (81°F) and lows dropping to around 0°C (32°F).

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

May Precipitation in Hayakawa

In Hayakawa in May, the total precipitation amount is 191 mm (7.5 in) over a span of 15 days.

May Precipitation Trends in Hayakawa

The chart displays monthly precipitation patterns in Hayakawa, 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 Hayakawa, May typically receives around 191 mm (7.5 inches) of precipitation spread over approximately 15 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 Hayakawa

In Hayakawa in May, humidity is 81%. With an average temperature of 14°C (57°F), this humidity feels like a warm, dense blanket that clings to your skin, making outdoor exploration a bit heavier and more tiring.

May Average Humidity in Hayakawa

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

In Hayakawa 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 Hayakawa.

Maximum UV Index Levels in Hayakawa for May

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

Data source: Hayakawa 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 Hayakawa Compares to Other Months

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

This table compares monthly weather conditions in Hayakawa, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (30°F)	65 mm (2.6 inches)	76%	moderate
February Weather	0°C (32°F)	80 mm (3.1 inches)	74%	high
March Weather	4°C (40°F)	182 mm (7.2 inches)	70%	very high
April Weather	9°C (48°F)	179 mm (7.0 inches)	74%	very high
May Weather	14°C (57°F)	191 mm (7.5 inches)	81%	extreme
June Weather	17°C (63°F)	222 mm (8.7 inches)	88%	extreme
July Weather	21°C (70°F)	451 mm (17.8 inches)	93%	extreme
August Weather	23°C (73°F)	227 mm (8.9 inches)	90%	extreme
September Weather	19°C (66°F)	243 mm (9.6 inches)	86%	very high
October Weather	13°C (56°F)	330 mm (13.0 inches)	83%	high
November Weather	7°C (45°F)	80 mm (3.1 inches)	80%	high
December Weather	2°C (35°F)	77 mm (3.0 inches)	78%	moderate