May Weather in Aioi, Japan

Last updated: August 23, 2025

In May, the average temperature in Aioi, Japan hovers around 18°C (64°F), with a comfortable range from a minimum of 10°C (51°F) to a maximum of 24°C (75°F). Expect some rain, as 134 mm (5.3 in) of precipitation falls over 9 days. Additionally, the air tends to be quite humid, with an average humidity level of 84%, making it a perfect time for those who enjoy a lush, vibrant atmosphere!

May Temperature in Aioi

In May in Aioi, the average temperature is 18°C (64°F). Maximum temperatures can reach 24°C (75°F), while minimums can drop to as low as 10°C (51°F). It's a great time to explore Aioi, as the mild weather is perfect for outdoor activities and sightseeing.

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

The chart illustrates May temperature patterns in Aioi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aioi, May typically has an average temperature of 18°C (64°F), with highs reaching up to 24°C (75°F) and lows dropping to around 10°C (51°F).

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

May Precipitation in Aioi

In Aioi in May, the precipitation amount is 134 mm (5.3 in) over the course of 9 days.

May Precipitation Trends in Aioi

The chart displays monthly precipitation patterns in Aioi, 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 Aioi, May typically receives around 134 mm (5.3 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 Aioi

In Aioi in May humidity is 84%. With an average temperature of 18°C (64°F), this humidity feels like there's a heavy blanket wrapping around you, making travel feel a bit sticky and muggy, potentially leading to fatigue if you're not prepared.

May Average Humidity in Aioi

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

In Aioi 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 Aioi.

Maximum UV Index Levels in Aioi for May

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

Data source: Aioi 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 Aioi Compares to Other Months

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

This table compares monthly weather conditions in Aioi, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (44°F)	42 mm (1.7 inches)	82%	moderate
February Weather	6°C (44°F)	55 mm (2.2 inches)	79%	moderate
March Weather	9°C (49°F)	109 mm (4.3 inches)	73%	very high
April Weather	13°C (56°F)	132 mm (5.2 inches)	74%	extreme
May Weather	18°C (64°F)	134 mm (5.3 inches)	84%	extreme
June Weather	21°C (71°F)	160 mm (6.3 inches)	86%	extreme
July Weather	25°C (78°F)	309 mm (12.2 inches)	92%	extreme
August Weather	27°C (81°F)	180 mm (7.1 inches)	92%	extreme
September Weather	24°C (76°F)	228 mm (9.0 inches)	87%	very high
October Weather	20°C (68°F)	229 mm (9.0 inches)	85%	high
November Weather	14°C (58°F)	43 mm (1.7 inches)	84%	moderate
December Weather	9°C (49°F)	56 mm (2.2 inches)	82%	moderate