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May Weather in Semboku, Japan

Last updated: August 23, 2025

In Semboku, Japan, the average temperature in May hovers around 13°C (56°F). Expect a chilly minimum of 2°C (35°F) and a warm maximum reaching 28°C (82°F). This month brings about 160 mm (6.3 in) of precipitation over approximately 16 days, accompanied by a high average humidity of 80%. Be prepared for a mix of weather as you explore this captivating destination!

May Temperature in Semboku

In May in Semboku, the average temperature is 13°C (56°F). The maximum can reach 28°C (82°F), while the minimum can drop to as low as 2°C (35°F). This variation in temperature makes it a great time to explore Semboku, so be sure to pack accordingly!

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

The chart illustrates May temperature patterns in Semboku, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Semboku, May typically has an average temperature of 13°C (56°F), with highs reaching up to 28°C (82°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec252634445663717264534129
Data source: Temperature data for Semboku 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 Semboku

In Semboku in May, the total precipitation amount is 160 mm (6.3 in) spread over 16 days.

May Precipitation Trends in Semboku

The chart displays monthly precipitation patterns in Semboku, 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 Semboku, May typically receives around 160 mm (6.3 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec105140141170160182237238170179134153
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Semboku

In Semboku in May humidity is 80%. With average temperature 13°C (56°F) this humidity feels like a damp chill that seeps into your bones, making outdoor exploration more challenging and necessitating layered clothing for comfort.

May Average Humidity in Semboku

This chart illustrates the average monthly humidity levels in Semboku, 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 Semboku is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%77%75%80%87%92%92%86%82%79%80%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Semboku

In Semboku in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Semboku.

Maximum UV Index Levels in Semboku for May

The chart shows the monthly maximum UV Index (UVI) for Semboku 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 Semboku typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346991010119643
Data source: Semboku 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 Semboku Compares to Other Months

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

This table compares monthly weather conditions in Semboku, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)105 mm (4.1 inches)80%moderate
February Weather-3°C (26°F)140 mm (5.5 inches)79%moderate
March Weather1°C (34°F)141 mm (5.6 inches)77%high
April Weather6°C (44°F)170 mm (6.7 inches)75%very high
May Weather13°C (56°F)160 mm (6.3 inches)80%very high
June Weather17°C (63°F)182 mm (7.2 inches)87%very high
July Weather21°C (71°F)237 mm (9.3 inches)92%very high
August Weather22°C (73°F)238 mm (9.4 inches)92%extreme
September Weather18°C (65°F)170 mm (6.7 inches)86%very high
October Weather12°C (54°F)179 mm (7.1 inches)82%high
November Weather5°C (42°F)134 mm (5.3 inches)79%moderate
December Weather-1°C (30°F)153 mm (6.0 inches)80%moderate

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