May Weather in Saikai, Japan

Last updated: August 23, 2025

In May, the average temperature in Saikai, Japan is a pleasant 19°C (67°F). Expect a minimum of 13°C (56°F) and a comfortable maximum of 24°C (76°F). However, be prepared for rain, as the area sees about 206 mm (8.1 in) of precipitation over 11 days. With an average humidity of 87%, you'll definitely feel the moisture in the air!

May Temperature in Saikai

In May in Saikai, the average temperature is 19°C (67°F), with maximums reaching 24°C (76°F) and minimums dipping as low as 13°C (56°F). This mild climate makes Saikai an ideal destination for travelers seeking comfortable outdoor activities.

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

The chart illustrates May temperature patterns in Saikai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saikai, May typically has an average temperature of 19°C (67°F), with highs reaching up to 24°C (76°F) and lows dropping to around 13°C (56°F).

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

May Precipitation in Saikai

In Saikai in May, the precipitation amount is 206 mm (8.1 in) spread over 11 days.

May Precipitation Trends in Saikai

The chart displays monthly precipitation patterns in Saikai, 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 Saikai, May typically receives around 206 mm (8.1 inches) of precipitation spread over approximately 11 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 Saikai

In Saikai in May, humidity is 87%. With an average temperature of 19°C (67°F), this humidity feels like a warm blanket wrapping around you, making traveling a bit heavier and leaving you craving for refreshing drinks and shade throughout the day.

May Average Humidity in Saikai

This chart illustrates the average monthly humidity levels in Saikai, 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 Saikai is approximately 87%, 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 Saikai

In Saikai 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 Saikai.

Maximum UV Index Levels in Saikai for May

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

Data source: Saikai 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 Saikai Compares to Other Months

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

This table compares monthly weather conditions in Saikai, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (47°F)	58 mm (2.3 inches)	73%	moderate
February Weather	9°C (48°F)	93 mm (3.6 inches)	69%	high
March Weather	12°C (54°F)	147 mm (5.8 inches)	71%	very high
April Weather	15°C (60°F)	130 mm (5.1 inches)	79%	very high
May Weather	19°C (67°F)	206 mm (8.1 inches)	87%	extreme
June Weather	23°C (73°F)	231 mm (9.1 inches)	91%	extreme
July Weather	26°C (79°F)	393 mm (15.5 inches)	97%	extreme
August Weather	28°C (82°F)	320 mm (12.6 inches)	94%	extreme
September Weather	25°C (77°F)	223 mm (8.8 inches)	84%	extreme
October Weather	21°C (69°F)	110 mm (4.3 inches)	79%	high
November Weather	16°C (60°F)	65 mm (2.6 inches)	75%	high
December Weather	10°C (51°F)	81 mm (3.2 inches)	72%	moderate