May Weather in Naganohara, Japan

Last updated: August 23, 2025

In May, the average temperature in Naganohara, Japan is a comfortable 15°C (59°F), with fluctuations ranging from a chilly 1°C (35°F) to a warm 29°C (85°F). Expect 173 mm (6.8 in) of precipitation spread across 18 days, contributing to an average humidity level of 81%. Prepare for a mix of pleasant days and refreshing rain!

May Temperature in Naganohara

In May in Naganohara, the average temperature is 15°C (59°F). The maximum can reach 29°C (85°F), and the minimum can be as low as 1°C (35°F). This makes it a perfect time for travelers to enjoy a mix of warm sunny days and cooler nights, so pack accordingly!

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

The chart illustrates May temperature patterns in Naganohara, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Naganohara, May typically has an average temperature of 15°C (59°F), with highs reaching up to 29°C (85°F) and lows dropping to around 1°C (35°F).

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

May Precipitation in Naganohara

In Naganohara in May, the precipitation amount is 173 mm (6.8 in) over the course of 18 days.

May Precipitation Trends in Naganohara

The chart displays monthly precipitation patterns in Naganohara, 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 Naganohara, May typically receives around 173 mm (6.8 inches) of precipitation spread over approximately 18 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Naganohara

In Naganohara in May humidity is 81%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket draped over you, making traveling quite uncomfortable as you constantly wipe away beads of sweat and feel the stickiness clinging to your clothes.

May Average Humidity in Naganohara

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

In Naganohara 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 Naganohara.

Maximum UV Index Levels in Naganohara for May

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

Data source: Naganohara 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 Naganohara Compares to Other Months

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

This table compares monthly weather conditions in Naganohara, 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)	78 mm (3.1 inches)	88%	moderate
February Weather	0°C (32°F)	72 mm (2.8 inches)	86%	high
March Weather	4°C (40°F)	125 mm (4.9 inches)	81%	very high
April Weather	9°C (48°F)	130 mm (5.1 inches)	78%	very high
May Weather	15°C (59°F)	173 mm (6.8 inches)	81%	extreme
June Weather	18°C (64°F)	223 mm (8.8 inches)	88%	extreme
July Weather	22°C (72°F)	341 mm (13.4 inches)	92%	extreme
August Weather	23°C (74°F)	244 mm (9.6 inches)	92%	extreme
September Weather	19°C (66°F)	222 mm (8.7 inches)	89%	very high
October Weather	13°C (56°F)	264 mm (10.4 inches)	87%	high
November Weather	7°C (45°F)	54 mm (2.1 inches)	85%	moderate
December Weather	2°C (35°F)	74 mm (2.9 inches)	86%	moderate