May Weather in Anan, Japan

Last updated: August 23, 2025

In May, the average temperature in Anan, Japan hovers around 18°C (65°F), providing a mild climate. Temperatures can dip to a minimum of 12°C (54°F) and peak at a comfortable 23°C (73°F). Rainfall is notable, with approximately 174 mm (6.9 in) recorded over 10 days, contributing to an average humidity level of 82%. Be prepared for a delightful mix of warmth and moisture!

May Temperature in Anan

In May in Anan, the average temperature is 18°C (65°F), with maximums reaching 23°C (73°F) and minimums dropping to as low as 12°C (54°F). This mild climate makes Anan an ideal destination for outdoor activities and sightseeing during this time of year.

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

The chart illustrates May temperature patterns in Anan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Anan, May typically has an average temperature of 18°C (65°F), with highs reaching up to 23°C (73°F) and lows dropping to around 12°C (54°F).

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

May Precipitation in Anan

In Anan in May, the total precipitation amount is 174 mm (6.9 in) accumulated over a period of 10 days.

May Precipitation Trends in Anan

The chart displays monthly precipitation patterns in Anan, 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 Anan, May typically receives around 174 mm (6.9 inches) of precipitation spread over approximately 10 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 Anan

In Anan in May, humidity is 82%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace that can quickly leave travelers feeling fatigued and in need of frequent breaks to stay refreshed and hydrated.

May Average Humidity in Anan

This chart illustrates the average monthly humidity levels in Anan, 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 Anan is approximately 82%, 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 Anan

In Anan 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 Anan.

Maximum UV Index Levels in Anan for May

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

Data source: Anan 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 Anan Compares to Other Months

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

This table compares monthly weather conditions in Anan, 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 (48°F)	59 mm (2.3 inches)	74%	moderate
February Weather	9°C (48°F)	68 mm (2.7 inches)	70%	high
March Weather	11°C (53°F)	128 mm (5.0 inches)	70%	very high
April Weather	14°C (58°F)	128 mm (5.0 inches)	76%	extreme
May Weather	18°C (65°F)	174 mm (6.9 inches)	82%	extreme
June Weather	22°C (71°F)	200 mm (7.9 inches)	86%	extreme
July Weather	25°C (78°F)	275 mm (10.8 inches)	91%	extreme
August Weather	27°C (81°F)	140 mm (5.5 inches)	88%	extreme
September Weather	25°C (77°F)	233 mm (9.2 inches)	85%	very high
October Weather	21°C (70°F)	337 mm (13.3 inches)	82%	high
November Weather	16°C (62°F)	64 mm (2.5 inches)	79%	high
December Weather	11°C (53°F)	68 mm (2.7 inches)	77%	moderate