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May Weather in Hayashima, Japan

Last updated: August 23, 2025

In Hayashima, Japan, the average temperature in May hovers around 18°C (65°F). You can expect a minimum of 10°C (51°F) and a comfortable maximum of 27°C (81°F). However, be prepared for some moisture, as the area receives an average precipitation of 121 mm (4.8 in) over 9 days, and the humidity levels are notably high at 84%.

May Temperature in Hayashima

In May in Hayashima, the average temperature is 18°C (65°F), with a maximum that can reach 27°C (81°F) and a minimum that can drop to as low as 10°C (51°F). It's an ideal time for travelers to enjoy pleasant weather while exploring the sights.

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

The chart illustrates May temperature patterns in Hayashima, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hayashima, May typically has an average temperature of 18°C (65°F), with highs reaching up to 27°C (81°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec444450576571798277685848
Data source: Temperature data for Hayashima 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 Hayashima

In Hayashima in May, the precipitation amount is 121 mm (4.8 in) over the course of 9 days.

May Precipitation Trends in Hayashima

The chart displays monthly precipitation patterns in Hayashima, 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 Hayashima, May typically receives around 121 mm (4.8 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec41561001261211502791441871933850
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Hayashima

In Hayashima in May, humidity is 84%. With an average temperature of 18°C (65°F), this humidity feels like a thick blanket enveloping you, making travel feel heavy and slightly uncomfortable as the air clings to your skin and limits your breath.

May Average Humidity in Hayashima

This chart illustrates the average monthly humidity levels in Hayashima, 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 Hayashima is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%73%74%84%86%92%92%87%85%84%82%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Hayashima

In Hayashima in May, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Hayashima.

Maximum UV Index Levels in Hayashima for May

The chart shows the monthly maximum UV Index (UVI) for Hayashima 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 Hayashima typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458101111121210754
Data source: Hayashima 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 Hayashima Compares to Other Months

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

This table compares monthly weather conditions in Hayashima, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)41 mm (1.6 inches)82%moderate
February Weather7°C (44°F)56 mm (2.2 inches)79%moderate
March Weather10°C (50°F)100 mm (3.9 inches)73%very high
April Weather14°C (57°F)126 mm (5.0 inches)74%very high
May Weather18°C (65°F)121 mm (4.8 inches)84%extreme
June Weather22°C (72°F)150 mm (5.9 inches)86%extreme
July Weather26°C (79°F)279 mm (11.0 inches)92%extreme
August Weather28°C (83°F)144 mm (5.7 inches)92%extreme
September Weather25°C (77°F)187 mm (7.3 inches)87%very high
October Weather20°C (68°F)193 mm (7.6 inches)85%high
November Weather14°C (58°F)38 mm (1.5 inches)84%moderate
December Weather9°C (48°F)50 mm (2.0 inches)82%moderate

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