May Weather in Ashiya, Japan

Last updated: August 23, 2025

The average temperature in Ashiya, Japan during May is a comfortable 20°C (68°F). Expect a minimum of 10°C (50°F) and a pleasant maximum of 30°C (86°F). Rainfall is notable, with an average precipitation of 154 mm (6.0 in) spread over 10 days. Additionally, enjoy the lush atmosphere brought by an average humidity of 83%.

May Temperature in Ashiya

In May in Ashiya, the average temperature is 20°C (68°F). Maximums can reach 30°C (86°F), and minimums can be as low as 10°C (50°F). This makes it an ideal time for travelers to enjoy pleasant weather while exploring the beauty of Ashiya.

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

The chart illustrates May temperature patterns in Ashiya, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ashiya, May typically has an average temperature of 20°C (68°F), with highs reaching up to 30°C (86°F) and lows dropping to around 10°C (50°F).

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

May Precipitation in Ashiya

In Ashiya in May, the precipitation amount is 154 mm (6.0 in) over a span of 10 days.

May Precipitation Trends in Ashiya

The chart displays monthly precipitation patterns in Ashiya, 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 Ashiya, May typically receives around 154 mm (6.0 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Ashiya

In Ashiya in May humidity is 83%. With an average temperature of 20°C (68°F), this humidity feels like a warm, heavy blanket enveloping you, making it feel much warmer than it is. Traveling in such conditions can be quite taxing, as the air feels thick, often leading to a sense of exhaustion and requiring frequent breaks to seek shade or hydration.

May Average Humidity in Ashiya

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

In Ashiya 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 Ashiya.

Maximum UV Index Levels in Ashiya for May

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

Data source: Ashiya 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 Ashiya Compares to Other Months

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

This table compares monthly weather conditions in Ashiya, 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 (43°F)	45 mm (1.8 inches)	82%	moderate
February Weather	6°C (44°F)	57 mm (2.3 inches)	79%	high
March Weather	10°C (51°F)	109 mm (4.3 inches)	74%	very high
April Weather	15°C (59°F)	137 mm (5.4 inches)	76%	extreme
May Weather	20°C (68°F)	154 mm (6.0 inches)	83%	extreme
June Weather	23°C (74°F)	153 mm (6.0 inches)	87%	extreme
July Weather	27°C (81°F)	317 mm (12.5 inches)	93%	extreme
August Weather	29°C (84°F)	210 mm (8.3 inches)	91%	extreme
September Weather	25°C (77°F)	197 mm (7.8 inches)	87%	very high
October Weather	20°C (68°F)	235 mm (9.2 inches)	85%	high
November Weather	14°C (57°F)	47 mm (1.9 inches)	83%	moderate
December Weather	8°C (48°F)	60 mm (2.3 inches)	83%	moderate