May Weather in Moriyama, Japan

Last updated: August 23, 2025

In Moriyama, Japan, the average temperature in May is a pleasant 19°C (66°F), with minimums dipping to 6°C (43°F) and maximums soaring up to 32°C (89°F). Expect about 144 mm (5.7 in) of precipitation spread over 11 days, resulting in a notably high average humidity of 83%.

May Temperature in Moriyama

In May in Moriyama, the average temperature is 19°C (66°F), with maximums potentially reaching 32°C (89°F) and minimums dropping as low as 6°C (43°F). This makes it an ideal time for travelers to enjoy mild weather while exploring the local attractions.

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

The chart illustrates May temperature patterns in Moriyama, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Moriyama, May typically has an average temperature of 19°C (66°F), with highs reaching up to 32°C (89°F) and lows dropping to around 6°C (43°F).

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

May Precipitation in Moriyama

In Moriyama in May, the precipitation amount is 144 mm (5.7 in) during 11 days, indicating a relatively wet period for the region.

May Precipitation Trends in Moriyama

The chart displays monthly precipitation patterns in Moriyama, 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 Moriyama, May typically receives around 144 mm (5.7 inches) of precipitation spread over approximately 11 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 Moriyama

In Moriyama in May, humidity is 83%. With an average temperature of 19°C (66°F), this humidity feels like a heavy blanket wrapping around you, making travel feel more sluggish and muggy, yet there's a refreshing coolness in the air that invites you to explore.

May Average Humidity in Moriyama

This chart illustrates the average monthly humidity levels in Moriyama, 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 Moriyama is approximately 83%, 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 Moriyama

In Moriyama 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 Moriyama.

Maximum UV Index Levels in Moriyama for May

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

Data source: Moriyama 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 Moriyama Compares to Other Months

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

This table compares monthly weather conditions in Moriyama, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	52 mm (2.0 inches)	82%	moderate
February Weather	5°C (41°F)	59 mm (2.3 inches)	79%	high
March Weather	9°C (49°F)	116 mm (4.6 inches)	74%	very high
April Weather	14°C (57°F)	138 mm (5.4 inches)	76%	very high
May Weather	19°C (66°F)	144 mm (5.7 inches)	83%	extreme
June Weather	22°C (72°F)	141 mm (5.6 inches)	87%	extreme
July Weather	26°C (80°F)	253 mm (10.0 inches)	93%	extreme
August Weather	28°C (83°F)	168 mm (6.6 inches)	91%	extreme
September Weather	24°C (75°F)	136 mm (5.4 inches)	87%	very high
October Weather	18°C (65°F)	227 mm (8.9 inches)	85%	high
November Weather	12°C (54°F)	41 mm (1.6 inches)	83%	moderate
December Weather	6°C (44°F)	63 mm (2.5 inches)	83%	moderate