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May Weather in Izumisano, Japan

Last updated: August 23, 2025

In May, the average temperature in Izumisano, Japan hovers around 20°C (68°F), offering a comfortable climate. However, temperatures can vary, with a minimum of 8°C (46°F) and a maximum reaching 30°C (87°F). Expect about 142 mm (5.6 in) of precipitation spread over 10 days, and be prepared for high humidity levels at 83%.

May Temperature in Izumisano

In May in Izumisano, the average temperature is 20°C (68°F). Maximums can reach 30°C (87°F), and minimums can be as low as 8°C (46°F). Overall, it's a pleasant time to visit, so be prepared for both warm and cooler moments during your travels.

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

The chart illustrates May temperature patterns in Izumisano, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Izumisano, May typically has an average temperature of 20°C (68°F), with highs reaching up to 30°C (87°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec434451596874818578685748
Data source: Temperature data for Izumisano generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Izumisano

In Izumisano in May, the total precipitation amount is 142 mm (5.6 in) over the course of 10 days.

May Precipitation Trends in Izumisano

The chart displays monthly precipitation patterns in Izumisano, 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 Izumisano, May typically receives around 142 mm (5.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec49601031191421622861701822364961
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Izumisano

In Izumisano 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 Izumisano

This chart illustrates the average monthly humidity levels in Izumisano, 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 Izumisano is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%74%76%83%87%93%91%87%85%83%83%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Izumisano

In Izumisano 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 Izumisano.

Maximum UV Index Levels in Izumisano for May

The chart shows the monthly maximum UV Index (UVI) for Izumisano 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 Izumisano typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458111111111110754
Data source: Izumisano 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 Izumisano Compares to Other Months

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

This table compares monthly weather conditions in Izumisano, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (44°F)49 mm (1.9 inches)82%moderate
February Weather7°C (44°F)60 mm (2.4 inches)79%moderate
March Weather11°C (52°F)103 mm (4.0 inches)74%very high
April Weather15°C (60°F)119 mm (4.7 inches)76%extreme
May Weather20°C (68°F)142 mm (5.6 inches)83%extreme
June Weather23°C (74°F)162 mm (6.4 inches)87%extreme
July Weather27°C (82°F)286 mm (11.3 inches)93%extreme
August Weather29°C (85°F)170 mm (6.7 inches)91%extreme
September Weather25°C (78°F)182 mm (7.2 inches)87%very high
October Weather20°C (68°F)236 mm (9.3 inches)85%high
November Weather14°C (57°F)49 mm (1.9 inches)83%moderate
December Weather9°C (48°F)61 mm (2.4 inches)83%moderate

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