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May Weather in Tomioka, Japan

Last updated: August 23, 2025

The average temperature in Tomioka, Japan during May is a comfortable 17°C (63°F). However, temperatures can vary significantly, with a minimum of 7°C (44°F) and a maximum of 29°C (85°F). Expect approximately 137 mm (5.4 in) of precipitation spread over 13 days, contributing to an average humidity of around 80%.

May Temperature in Tomioka

In May, in Tomioka, the average temperature is 17°C (63°F). Maximum temperatures can reach 29°C (85°F), while minimums can drop as low as 7°C (44°F). This climate makes Tomioka an ideal destination for travelers seeking pleasant weather and a range of outdoor activities.

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

The chart illustrates May temperature patterns in Tomioka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tomioka, May typically has an average temperature of 17°C (63°F), with highs reaching up to 29°C (85°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec383946536368757871625242
Data source: Temperature data for Tomioka 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 Tomioka

In Tomioka in May, the total precipitation amount reaches 137 mm (5.4 in) over the course of 13 days.

May Precipitation Trends in Tomioka

The chart displays monthly precipitation patterns in Tomioka, 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 Tomioka, May typically receives around 137 mm (5.4 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec50381441211371212381511712346060
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Tomioka

In Tomioka in May humidity is 80%. With an average temperature of 17°C (63°F), this humidity feels like you're walking through a thick, warm blanket, making travel feel slightly stifling and requiring frequent breaks to stay comfortable.

May Average Humidity in Tomioka

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

In Tomioka 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 Tomioka.

Maximum UV Index Levels in Tomioka for May

The chart shows the monthly maximum UV Index (UVI) for Tomioka 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 Tomioka typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101011119653
Data source: Tomioka 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 Tomioka Compares to Other Months

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

This table compares monthly weather conditions in Tomioka, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)50 mm (2.0 inches)76%moderate
February Weather4°C (40°F)38 mm (1.5 inches)75%moderate
March Weather8°C (46°F)144 mm (5.7 inches)72%high
April Weather12°C (53°F)121 mm (4.8 inches)73%very high
May Weather17°C (63°F)137 mm (5.4 inches)80%very high
June Weather20°C (68°F)121 mm (4.8 inches)87%very high
July Weather24°C (75°F)238 mm (9.4 inches)92%extreme
August Weather26°C (79°F)151 mm (5.9 inches)90%extreme
September Weather22°C (71°F)171 mm (6.7 inches)84%very high
October Weather17°C (62°F)233 mm (9.2 inches)80%high
November Weather11°C (52°F)60 mm (2.4 inches)77%moderate
December Weather5°C (42°F)60 mm (2.3 inches)77%moderate

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