May Weather in Nagai, Japan

Last updated: August 23, 2025

In May, the average temperature in Nagai, Japan is a mild 14°C (58°F), with a minimum of 2°C (35°F) and a possible maximum of 31°C (88°F). Expect about 120 mm (4.7 in) of precipitation over approximately 15 days, contributing to an average humidity of 81%. Stay prepared for a mix of pleasant and rainy days!

May Temperature in Nagai

In May in Nagai, the average temperature is 14°C (58°F). The maximum can reach 31°C (88°F) and the minimum can be as low as 2°C (35°F). It’s advisable to pack layers to accommodate for both warm days and cooler nights when traveling during this time.

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

The chart illustrates May temperature patterns in Nagai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nagai, May typically has an average temperature of 14°C (58°F), with highs reaching up to 31°C (88°F) and lows dropping to around 2°C (35°F).

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

May Precipitation in Nagai

In Nagai in May, the precipitation amount is 120 mm (4.7 in) spread over 15 days.

May Precipitation Trends in Nagai

The chart displays monthly precipitation patterns in Nagai, 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 Nagai, May typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 15 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 Nagai

In Nagai 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 Nagai

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

In Nagai in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Nagai.

Maximum UV Index Levels in Nagai for May

The chart shows the monthly maximum UV Index (UVI) for Nagai 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 Nagai typically reaches 10, which falls under the very high exposure category.

Data source: Nagai 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 Nagai Compares to Other Months

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

This table compares monthly weather conditions in Nagai, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (28°F)	169 mm (6.6 inches)	88%	moderate
February Weather	-2°C (29°F)	167 mm (6.6 inches)	86%	moderate
March Weather	2°C (36°F)	153 mm (6.0 inches)	81%	very high
April Weather	8°C (46°F)	138 mm (5.4 inches)	78%	very high
May Weather	14°C (58°F)	120 mm (4.7 inches)	81%	very high
June Weather	18°C (64°F)	135 mm (5.3 inches)	88%	extreme
July Weather	22°C (72°F)	298 mm (11.7 inches)	92%	extreme
August Weather	23°C (74°F)	221 mm (8.7 inches)	92%	extreme
September Weather	19°C (66°F)	140 mm (5.5 inches)	89%	very high
October Weather	13°C (55°F)	164 mm (6.5 inches)	87%	high
November Weather	7°C (44°F)	118 mm (4.7 inches)	85%	moderate
December Weather	0°C (33°F)	203 mm (8.0 inches)	86%	moderate