May Weather in Ijuin, Japan

Last updated: August 23, 2025

In May, the average temperature in Ijuin, Japan is a pleasant 21°C (70°F). Expect a comfortable range, with minimum temperatures dipping to 8°C (47°F) and maximum highs reaching up to 31°C (88°F). However, be prepared for some rain, as the region sees about 260 mm (10.2 in) of precipitation over 12 days. With an average humidity of 83%, you'll feel the tropical vibe throughout the month!

May Temperature in Ijuin

In May in Ijuin, the average temperature is 21°C (70°F), with maximums reaching up to 31°C (88°F) and minimums dropping to as low as 8°C (47°F). Overall, this weather makes it a great time for travelers to explore and enjoy outdoor activities in Ijuin.

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

The chart illustrates May temperature patterns in Ijuin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ijuin, May typically has an average temperature of 21°C (70°F), with highs reaching up to 31°C (88°F) and lows dropping to around 8°C (47°F).

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

May Precipitation in Ijuin

In Ijuin in May, the precipitation amount is 260 mm (10.2 in) over the course of 12 days.

May Precipitation Trends in Ijuin

The chart displays monthly precipitation patterns in Ijuin, 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 Ijuin, May typically receives around 260 mm (10.2 inches) of precipitation spread over approximately 12 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 Ijuin

In Ijuin in May humidity is 83%. With an average temperature of 21°C (70°F), this humidity feels like you’re enveloped in a warm, tropical embrace, making it essential to stay hydrated and take breaks during your travels.

May Average Humidity in Ijuin

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

In Ijuin in May, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Ijuin.

Maximum UV Index Levels in Ijuin for May

The chart shows the monthly maximum UV Index (UVI) for Ijuin 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 Ijuin typically reaches 12, which falls under the extreme exposure category.

Data source: Ijuin 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 Ijuin Compares to Other Months

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

This table compares monthly weather conditions in Ijuin, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (49°F)	53 mm (2.1 inches)	72%	moderate
February Weather	10°C (50°F)	103 mm (4.0 inches)	68%	high
March Weather	13°C (56°F)	170 mm (6.7 inches)	72%	very high
April Weather	17°C (63°F)	147 mm (5.8 inches)	79%	extreme
May Weather	21°C (70°F)	260 mm (10.2 inches)	83%	extreme
June Weather	24°C (75°F)	423 mm (16.7 inches)	86%	extreme
July Weather	27°C (81°F)	403 mm (15.9 inches)	90%	extreme
August Weather	28°C (84°F)	192 mm (7.6 inches)	85%	extreme
September Weather	26°C (79°F)	254 mm (10.0 inches)	80%	extreme
October Weather	22°C (71°F)	137 mm (5.4 inches)	78%	very high
November Weather	16°C (61°F)	97 mm (3.8 inches)	76%	high
December Weather	11°C (51°F)	82 mm (3.2 inches)	74%	moderate