May Weather in Soma, Japan

Last updated: August 23, 2025

In May, the average temperature in Soma, Japan hovers around 16°C (60°F). Expect minimums as low as 7°C (45°F) and maximums reaching 25°C (77°F). The region experiences about 119 mm (4.7 in) of precipitation over 12 days, contributing to an average humidity of 80%. Prepare for a blend of mild days and occasional showers!

May Temperature in Soma

In May in Soma, the average temperature is 16°C (60°F). Maximums can reach 25°C (77°F) and minimums can be as low as 7°C (45°F). This pleasant climate makes it an ideal time for travelers to explore the outdoors and enjoy various activities.

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

The chart illustrates May temperature patterns in Soma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Soma, May typically has an average temperature of 16°C (60°F), with highs reaching up to 25°C (77°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec404145516066737772645545
Data source: Temperature data for Soma 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 Soma

In Soma in May, the total precipitation amount is 119 mm (4.7 in), falling over a span of 12 days.

May Precipitation Trends in Soma

The chart displays monthly precipitation patterns in Soma, 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 Soma, May typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec52411171151191052391581912574460
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Soma

In Soma 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 Soma

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

In Soma 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 Soma.

Maximum UV Index Levels in Soma for May

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

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

This table compares monthly weather conditions in Soma, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (40°F)52 mm (2.1 inches)76%moderate
February Weather5°C (41°F)41 mm (1.6 inches)75%moderate
March Weather7°C (46°F)117 mm (4.6 inches)72%high
April Weather11°C (51°F)115 mm (4.5 inches)73%very high
May Weather16°C (60°F)119 mm (4.7 inches)80%very high
June Weather19°C (66°F)105 mm (4.1 inches)87%very high
July Weather23°C (73°F)239 mm (9.4 inches)92%extreme
August Weather25°C (77°F)158 mm (6.2 inches)90%extreme
September Weather22°C (72°F)191 mm (7.5 inches)84%very high
October Weather18°C (64°F)257 mm (10.1 inches)80%high
November Weather13°C (55°F)44 mm (1.7 inches)77%moderate
December Weather7°C (45°F)60 mm (2.4 inches)77%moderate

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