May Weather in Koseda, Japan

Last updated: August 23, 2025

In Koseda, Japan, the average temperature in May is a comfortable 21°C (71°F). Temperatures can range from a minimum of 16°C (61°F) to a maximum of 25°C (78°F), creating a pleasant climate. However, be prepared for some rain, as precipitation amounts can reach 251 mm (9.9 in) over 13 days. Additionally, the average humidity sits at a high 83%, ensuring a lush and vibrant environment.

May Temperature in Koseda

In May in Koseda, the average temperature is 21°C (71°F). Maximums can reach 25°C (78°F), while minimums can drop as low as 16°C (61°F). This pleasant climate makes Koseda an ideal destination for travelers seeking comfortable weather during their visit.

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

The chart illustrates May temperature patterns in Koseda, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Koseda, May typically has an average temperature of 21°C (71°F), with highs reaching up to 25°C (78°F) and lows dropping to around 16°C (61°F).

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

May Precipitation in Koseda

In Koseda in May, the total precipitation amount is 251 mm (9.9 in) spread over 13 days.

May Precipitation Trends in Koseda

The chart displays monthly precipitation patterns in Koseda, 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 Koseda, May typically receives around 251 mm (9.9 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 Koseda

In Koseda in May humidity is 83%. With an average temperature of 21°C (71°F), this humidity feels like walking through a warm mist, making travel both refreshing and slightly uncomfortable as the air clings to your skin and you find yourself needing to take frequent breaks to hydrate.

May Average Humidity in Koseda

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

In Koseda in May, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Koseda.

Maximum UV Index Levels in Koseda for May

The chart shows the monthly maximum UV Index (UVI) for Koseda 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 Koseda typically reaches 12, which falls under the extreme exposure category.

Data source: Koseda 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 Koseda Compares to Other Months

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

This table compares monthly weather conditions in Koseda, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (56°F)	102 mm (4.0 inches)	72%	moderate
February Weather	13°C (56°F)	151 mm (6.0 inches)	68%	high
March Weather	16°C (61°F)	201 mm (7.9 inches)	72%	very high
April Weather	18°C (66°F)	172 mm (6.8 inches)	79%	extreme
May Weather	21°C (71°F)	251 mm (9.9 inches)	83%	extreme
June Weather	24°C (75°F)	469 mm (18.5 inches)	86%	extreme
July Weather	27°C (81°F)	250 mm (9.8 inches)	90%	extreme
August Weather	28°C (82°F)	200 mm (7.9 inches)	85%	extreme
September Weather	27°C (80°F)	281 mm (11.1 inches)	80%	extreme
October Weather	23°C (75°F)	173 mm (6.8 inches)	78%	very high
November Weather	19°C (67°F)	153 mm (6.0 inches)	76%	high
December Weather	15°C (60°F)	132 mm (5.2 inches)	74%	moderate