May Weather in Katashina, Japan

Last updated: August 23, 2025

In May, the average temperature in Katashina, Japan is a mild 13°C (56°F). Expect minimums as low as 0°C (33°F) and highs reaching up to 27°C (81°F). During this time, the area receives approximately 146 mm (5.7 in) of precipitation, spread over 16 days. With an average humidity of 81%, it’s a good idea to prepare for a mix of cool and damp conditions.

May Temperature in Katashina

In May in Katashina, the average temperature is 13°C (56°F). Maximum temperatures can reach 27°C (81°F), while minimums can drop as low as 0°C (33°F). It's a great time to visit for those who enjoy mild weather with a chance of warmer days.

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

The chart illustrates May temperature patterns in Katashina, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Katashina, May typically has an average temperature of 13°C (56°F), with highs reaching up to 27°C (81°F) and lows dropping to around 0°C (33°F).

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

May Precipitation in Katashina

In Katashina in May, the precipitation amount is 146 mm (5.7 in) spread over 16 days.

May Precipitation Trends in Katashina

The chart displays monthly precipitation patterns in Katashina, 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 Katashina, May typically receives around 146 mm (5.7 inches) of precipitation spread over approximately 16 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 Katashina

In Katashina in May, humidity is 81%. With an average temperature of 13°C (56°F), this humidity feels like a blanket of damp air that clings to your skin, making it essential to pack breathable clothing and stay hydrated while exploring.

May Average Humidity in Katashina

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

In Katashina 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 Katashina.

Maximum UV Index Levels in Katashina for May

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

Data source: Katashina 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 Katashina Compares to Other Months

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

This table compares monthly weather conditions in Katashina, 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)	80 mm (3.2 inches)	88%	moderate
February Weather	-2°C (29°F)	78 mm (3.1 inches)	86%	high
March Weather	3°C (37°F)	136 mm (5.4 inches)	81%	very high
April Weather	7°C (45°F)	134 mm (5.3 inches)	78%	very high
May Weather	13°C (56°F)	146 mm (5.7 inches)	81%	extreme
June Weather	17°C (62°F)	183 mm (7.2 inches)	88%	extreme
July Weather	21°C (70°F)	294 mm (11.6 inches)	92%	extreme
August Weather	22°C (72°F)	211 mm (8.3 inches)	92%	extreme
September Weather	18°C (64°F)	189 mm (7.5 inches)	89%	very high
October Weather	12°C (54°F)	246 mm (9.7 inches)	87%	high
November Weather	6°C (43°F)	65 mm (2.6 inches)	85%	moderate
December Weather	0°C (32°F)	93 mm (3.7 inches)	86%	moderate