May Weather in Iheya, Japan

Last updated: August 23, 2025

In May, the average temperature in Iheya, Japan is a pleasant 24°C (75°F), with daily temperatures ranging from a minimum of 19°C (66°F) to a maximum of 27°C (81°F). This month also sees 214 mm (8.4 in) of precipitation spread over 13 days, resulting in an average humidity of 84%.

May Temperature in Iheya

In May in Iheya, the average temperature is 24°C (75°F), with maximums reaching 27°C (81°F) and minimums dropping to as low as 19°C (66°F). This pleasant climate makes it an ideal time for travelers to explore and enjoy outdoor activities in Iheya.

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

The chart illustrates May temperature patterns in Iheya, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iheya, May typically has an average temperature of 24°C (75°F), with highs reaching up to 27°C (81°F) and lows dropping to around 19°C (66°F).

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

May Precipitation in Iheya

In Iheya in May, the total precipitation amount reaches 214 mm (8.4 in) over the course of 13 days.

May Precipitation Trends in Iheya

The chart displays monthly precipitation patterns in Iheya, 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 Iheya, May typically receives around 214 mm (8.4 inches) of precipitation spread over approximately 13 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 Iheya

In Iheya in May humidity is 84%. With an average temperature of 24°C (75°F), this humidity feels like a warm, tropical embrace, making it essential for travelers to stay hydrated and plan outdoor activities for early mornings or late afternoons when the heat is more bearable.

May Average Humidity in Iheya

This chart illustrates the average monthly humidity levels in Iheya, 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 Iheya is approximately 84%, 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 Iheya

In Iheya in May, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Iheya.

Maximum UV Index Levels in Iheya for May

The chart shows the monthly maximum UV Index (UVI) for Iheya 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 Iheya typically reaches 13, which falls under the extreme exposure category.

Data source: Iheya 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 Iheya Compares to Other Months

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

This table compares monthly weather conditions in Iheya, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	18°C (64°F)	103 mm (4.1 inches)	71%	high
February Weather	18°C (64°F)	108 mm (4.3 inches)	71%	very high
March Weather	19°C (67°F)	132 mm (5.2 inches)	76%	extreme
April Weather	21°C (70°F)	135 mm (5.3 inches)	82%	extreme
May Weather	24°C (75°F)	214 mm (8.4 inches)	84%	extreme
June Weather	26°C (79°F)	392 mm (15.4 inches)	86%	extreme
July Weather	28°C (83°F)	173 mm (6.8 inches)	86%	extreme
August Weather	28°C (83°F)	161 mm (6.3 inches)	82%	extreme
September Weather	28°C (82°F)	204 mm (8.0 inches)	82%	extreme
October Weather	26°C (78°F)	135 mm (5.3 inches)	80%	very high
November Weather	23°C (73°F)	107 mm (4.2 inches)	79%	very high
December Weather	20°C (67°F)	141 mm (5.5 inches)	75%	high