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May Weather in Rikubetsu, Japan

Last updated: August 23, 2025

In Rikubetsu, Japan, the average temperature in May is a mild 11°C (51°F). Expect a range from a chilly -1°C (31°F) to a warm 35°C (95°F). During this month, precipitation averages 90 mm (3.6 in) over approximately 13 days, contributing to an average humidity of 86%. Stay prepared for varied weather!

May Temperature in Rikubetsu

In May in Rikubetsu, the average temperature is 11°C (51°F). Maximums can reach 35°C (95°F), while minimums can drop as low as -1°C (31°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your trip.

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

The chart illustrates May temperature patterns in Rikubetsu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rikubetsu, May typically has an average temperature of 11°C (51°F), with highs reaching up to 35°C (95°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec171829405156646559483724
Data source: Temperature data for Rikubetsu 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 Rikubetsu

In Rikubetsu in May, the precipitation amount is 90 mm (3.6 in), occurring over the course of 13 days.

May Precipitation Trends in Rikubetsu

The chart displays monthly precipitation patterns in Rikubetsu, 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 Rikubetsu, May typically receives around 90 mm (3.6 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec504988789010483147931367752
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Rikubetsu

In Rikubetsu in May humidity is 86%. With an average temperature of 11°C (51°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities less enjoyable and travel a bit more strenuous as the air feels heavy and clammy.

May Average Humidity in Rikubetsu

This chart illustrates the average monthly humidity levels in Rikubetsu, 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 Rikubetsu is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%83%83%86%88%93%96%89%83%80%79%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Rikubetsu

In Rikubetsu in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Rikubetsu.

Maximum UV Index Levels in Rikubetsu for May

The chart shows the monthly maximum UV Index (UVI) for Rikubetsu 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 Rikubetsu typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2368891098532
Data source: Rikubetsu 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 Rikubetsu Compares to Other Months

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

This table compares monthly weather conditions in Rikubetsu, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (17°F)50 mm (2.0 inches)84%low
February Weather-8°C (18°F)49 mm (1.9 inches)83%moderate
March Weather-2°C (29°F)88 mm (3.5 inches)83%high
April Weather4°C (40°F)78 mm (3.1 inches)83%very high
May Weather11°C (51°F)90 mm (3.6 inches)86%very high
June Weather14°C (57°F)104 mm (4.1 inches)88%very high
July Weather18°C (65°F)83 mm (3.3 inches)93%very high
August Weather18°C (65°F)147 mm (5.8 inches)96%very high
September Weather15°C (59°F)93 mm (3.6 inches)89%very high
October Weather9°C (49°F)136 mm (5.4 inches)83%moderate
November Weather3°C (37°F)77 mm (3.0 inches)80%moderate
December Weather-5°C (24°F)52 mm (2.1 inches)79%low

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