May Weather in Innoshima, Japan

Last updated: August 23, 2025

In May, the average temperature in Innoshima, Japan is a pleasant 19°C (66°F). Expect the mercury to dip as low as 11°C (53°F) and rise to a comfortable 27°C (80°F). Be prepared for some rain, as the area receives about 116 mm (4.6 in) of precipitation over 9 days. With an average humidity of 84%, it's advisable to carry an umbrella or a light jacket when exploring!

May Temperature in Innoshima

In May in Innoshima, the average temperature is 19°C (66°F). Maximums can reach 27°C (80°F), while minimums can drop as low as 11°C (53°F). This mild climate makes Innoshima an ideal destination for travelers looking to enjoy comfortable weather during their visit.

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

The chart illustrates May temperature patterns in Innoshima, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Innoshima, May typically has an average temperature of 19°C (66°F), with highs reaching up to 27°C (80°F) and lows dropping to around 11°C (53°F).

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

May Precipitation in Innoshima

In Innoshima in May, the precipitation amount is 116 mm (4.6 in) spread over 9 days.

May Precipitation Trends in Innoshima

The chart displays monthly precipitation patterns in Innoshima, 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 Innoshima, May typically receives around 116 mm (4.6 inches) of precipitation spread over approximately 9 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 Innoshima

In Innoshima in May, humidity is 84%. With an average temperature of 19°C (66°F), this humidity feels like a warm, sticky embrace that can make traveling uncomfortable and exhausting, as the air clings to your skin, and every step taken feels heavier in the sultry atmosphere.

May Average Humidity in Innoshima

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

In Innoshima 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 Innoshima.

Maximum UV Index Levels in Innoshima for May

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

Data source: Innoshima 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 Innoshima Compares to Other Months

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

This table compares monthly weather conditions in Innoshima, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	54 mm (2.1 inches)	82%	moderate
February Weather	7°C (45°F)	67 mm (2.6 inches)	79%	moderate
March Weather	11°C (51°F)	105 mm (4.1 inches)	73%	very high
April Weather	14°C (58°F)	122 mm (4.8 inches)	74%	very high
May Weather	19°C (66°F)	116 mm (4.6 inches)	84%	extreme
June Weather	22°C (73°F)	151 mm (5.9 inches)	86%	extreme
July Weather	26°C (80°F)	285 mm (11.2 inches)	92%	extreme
August Weather	29°C (84°F)	133 mm (5.2 inches)	92%	extreme
September Weather	25°C (78°F)	177 mm (7.0 inches)	87%	very high
October Weather	20°C (69°F)	201 mm (7.9 inches)	85%	high
November Weather	15°C (59°F)	50 mm (2.0 inches)	84%	high
December Weather	10°C (50°F)	64 mm (2.5 inches)	82%	moderate