May Weather in Shiroishi, Japan

Last updated: August 23, 2025

In May, the average temperature in Shiroishi, Japan is a comfortable 16°C (60°F). However, be prepared for a range that can dip to a chilly 3°C (38°F) and soar up to a warm 31°C (87°F). This month, expect about 106 mm (4.2 in) of precipitation over 14 days, coupled with an average humidity of 80%.

May Temperature in Shiroishi

In May in Shiroishi, the average temperature is 16°C (60°F). The maximum can reach 31°C (87°F), and the minimum can be as low as 3°C (38°F). Be prepared for a wide range of temperatures while traveling, as layering your clothing will ensure you're comfortable throughout the day.

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

The chart illustrates May temperature patterns in Shiroishi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shiroishi, May typically has an average temperature of 16°C (60°F), with highs reaching up to 31°C (87°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec313241496066737668574636
Data source: Temperature data for Shiroishi 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 Shiroishi

In Shiroishi in May, the precipitation amount is 106 mm (4.2 in) over a period of 14 days.

May Precipitation Trends in Shiroishi

The chart displays monthly precipitation patterns in Shiroishi, 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 Shiroishi, May typically receives around 106 mm (4.2 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec79691121091061002451831401944687
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Shiroishi

In Shiroishi in May, humidity is 80%. With an average temperature of 16°C (60°F), this humidity feels like walking through a warm, thick haze, making travel feel somewhat stifling and requiring frequent breaks to hydrate and cool down.

May Average Humidity in Shiroishi

This chart illustrates the average monthly humidity levels in Shiroishi, 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 Shiroishi is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%75%72%73%80%87%93%90%84%80%77%77%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Shiroishi

In Shiroishi in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Shiroishi.

Maximum UV Index Levels in Shiroishi for May

The chart shows the monthly maximum UV Index (UVI) for Shiroishi 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 Shiroishi typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101011119643
Data source: Shiroishi 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 Shiroishi Compares to Other Months

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

This table compares monthly weather conditions in Shiroishi, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)79 mm (3.1 inches)76%moderate
February Weather0°C (33°F)69 mm (2.7 inches)75%moderate
March Weather5°C (41°F)112 mm (4.4 inches)72%high
April Weather9°C (49°F)109 mm (4.3 inches)73%very high
May Weather16°C (60°F)106 mm (4.2 inches)80%very high
June Weather19°C (66°F)100 mm (3.9 inches)87%very high
July Weather23°C (74°F)245 mm (9.6 inches)92%extreme
August Weather24°C (76°F)183 mm (7.2 inches)90%extreme
September Weather20°C (68°F)140 mm (5.5 inches)84%very high
October Weather14°C (58°F)194 mm (7.6 inches)80%high
November Weather8°C (47°F)46 mm (1.8 inches)77%moderate
December Weather2°C (36°F)87 mm (3.4 inches)77%moderate

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