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May Weather in Iwaizumi, Japan

Last updated: August 23, 2025

In May, the average temperature in Iwaizumi, Japan hovers around 13°C (55°F). You can expect a chilly minimum of 2°C (37°F), while the mercury can rise to a warm 28°C (83°F). Be prepared for 106 mm (4.2 in) of precipitation over about 13 days, accompanied by an average humidity of 80%.

May Temperature in Iwaizumi

In May in Iwaizumi, the average temperature is 13°C (55°F). Maximums can reach 28°C (83°F), and minimums can drop as low as 2°C (37°F). This mild climate makes Iwaizumi an ideal destination for travelers seeking comfortable weather and a variety of outdoor activities.

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

The chart illustrates May temperature patterns in Iwaizumi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iwaizumi, May typically has an average temperature of 13°C (55°F), with highs reaching up to 28°C (83°F) and lows dropping to around 2°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec282837445561697164544433
Data source: Temperature data for Iwaizumi 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 Iwaizumi

In Iwaizumi in May, the precipitation amount is 106 mm (4.2 in) spread over a duration of 13 days.

May Precipitation Trends in Iwaizumi

The chart displays monthly precipitation patterns in Iwaizumi, 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 Iwaizumi, May typically receives around 106 mm (4.2 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec49671021191061081781991572004563
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Iwaizumi

In Iwaizumi in May humidity is 80%. With an average temperature of 13°C (55°F), this humidity feels like a damp blanket wrapping around you, making any outdoor activity feel stifling and heavy, which can lead to fatigue for travelers unaccustomed to such moist conditions.

May Average Humidity in Iwaizumi

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

In Iwaizumi 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 Iwaizumi.

Maximum UV Index Levels in Iwaizumi for May

The chart shows the monthly maximum UV Index (UVI) for Iwaizumi 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 Iwaizumi typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346991110119643
Data source: Iwaizumi 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 Iwaizumi Compares to Other Months

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

This table compares monthly weather conditions in Iwaizumi, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)49 mm (1.9 inches)80%moderate
February Weather-2°C (29°F)67 mm (2.6 inches)79%moderate
March Weather3°C (37°F)102 mm (4.0 inches)77%high
April Weather7°C (45°F)119 mm (4.7 inches)75%very high
May Weather13°C (55°F)106 mm (4.2 inches)80%very high
June Weather16°C (61°F)108 mm (4.3 inches)87%extreme
July Weather20°C (69°F)178 mm (7.0 inches)92%very high
August Weather22°C (71°F)199 mm (7.8 inches)92%extreme
September Weather18°C (65°F)157 mm (6.2 inches)86%very high
October Weather12°C (55°F)200 mm (7.9 inches)82%high
November Weather6°C (44°F)45 mm (1.8 inches)79%moderate
December Weather0°C (33°F)63 mm (2.5 inches)80%moderate

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