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March Weather in Koshimizu, Japan

Last updated: August 23, 2025

In March, the average temperature in Koshimizu, Japan hovers around -2°C (29°F), with minimums plummeting to -15°C (4°F) and maximums reaching a mild 13°C (55°F). Expect 88 mm (3.5 in) of precipitation over approximately 11 days, coupled with a high average humidity of 83%. Stay warm and prepare for some wet days!

March Temperature in Koshimizu

In March in Koshimizu, the average temperature is -2°C (29°F), with maximum temperatures potentially reaching 13°C (55°F) and minimums plummeting to -15°C (4°F). Travelers should be prepared for cold weather and significant temperature fluctuations.

March Weather in Koshimizu: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Koshimizu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Koshimizu, March typically has an average temperature of -2°C (29°F), with highs reaching up to 13°C (55°F) and lows dropping to around -15°C (4°F).
JanFebMarAprMayJunJulAugSepOctNovDec191828395056646561513926
Data source: Temperature data for Koshimizu 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.

March Precipitation in Koshimizu

In Koshimizu in March, the total precipitation amount is 88 mm (3.5 in) spread over 11 days.

March Precipitation Trends in Koshimizu

The chart displays monthly precipitation patterns in Koshimizu, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Koshimizu, March typically receives around 88 mm (3.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec54558872959679129951599670
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Koshimizu

In Koshimizu in March, humidity is 83%. With an average temperature of -2°C (29°F), this humidity feels like a biting chill that seeps into your bones, making travel outside feel particularly uncomfortable and brisk, as the damp air enhances the cold sensation, leaving you longing for warmth and shelter.

March Average Humidity in Koshimizu

This chart illustrates the average monthly humidity levels in Koshimizu, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Koshimizu is approximately 83%, 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 March generated using information from the Copernicus Climate Change Service.

March UV Index in Koshimizu

In Koshimizu in March, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Koshimizu, you can refer to this Hourly UV Index in Koshimizu.

Maximum UV Index Levels in Koshimizu for March

The chart shows the monthly maximum UV Index (UVI) for Koshimizu in March, 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 March, the maximum UV index in Koshimizu typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2367891098532
Data source: Koshimizu March 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 March Weather in Koshimizu Compares to Other Months

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

This table compares monthly weather conditions in Koshimizu, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (19°F)54 mm (2.1 inches)84%low
February Weather-8°C (19°F)55 mm (2.2 inches)83%moderate
March Weather-2°C (29°F)88 mm (3.5 inches)83%high
April Weather4°C (39°F)72 mm (2.8 inches)83%high
May Weather10°C (50°F)95 mm (3.7 inches)86%very high
June Weather13°C (56°F)96 mm (3.8 inches)88%very high
July Weather18°C (64°F)79 mm (3.1 inches)93%very high
August Weather18°C (65°F)129 mm (5.1 inches)96%very high
September Weather16°C (61°F)95 mm (3.7 inches)89%very high
October Weather11°C (51°F)159 mm (6.2 inches)83%moderate
November Weather4°C (40°F)96 mm (3.8 inches)80%moderate
December Weather-3°C (27°F)70 mm (2.8 inches)79%low

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