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March Weather in Kosaka, Japan

Last updated: August 23, 2025

In March, the average temperature in Kosaka, Japan hovers around 2°C (35°F). Expect chilly nights with minimums dipping to -12°C (10°F), while days can reach a pleasant maximum of 16°C (61°F). With 107 mm (4.2 in) of precipitation spread over 17 days, it's wise to come prepared for wet weather. The average humidity sits at a notable 77%, adding to the cool, crisp atmosphere of the season.

March Temperature in Kosaka

In March in Kosaka, the average temperature is 2°C (35°F). Maximum temperatures can reach 16°C (61°F), while minimums can drop as low as -12°C (10°F). This temperature range means travelers should be prepared for chilly conditions with the possibility of mild days, making layered clothing essential for comfort.

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

The chart illustrates March temperature patterns in Kosaka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kosaka, March typically has an average temperature of 2°C (35°F), with highs reaching up to 16°C (61°F) and lows dropping to around -12°C (10°F).
JanFebMarAprMayJunJulAugSepOctNovDec262735455763717265534230
Data source: Temperature data for Kosaka 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 Kosaka

In Kosaka in March, the precipitation amount is 107 mm (4.2 in) and occurs over 17 days.

March Precipitation Trends in Kosaka

The chart displays monthly precipitation patterns in Kosaka, 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 Kosaka, March typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec78108107127116142168179137166100114
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Kosaka

In Kosaka in March humidity is 77%. With an average temperature of 2°C (35°F), this humidity feels like a heavy blanket against the skin, making outdoor activities feel far chillier than the thermometer suggests, which can be quite challenging for traveling.

March Average Humidity in Kosaka

This chart illustrates the average monthly humidity levels in Kosaka, 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 Kosaka is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%78%77%78%86%91%95%97%89%82%78%77%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Kosaka

In Kosaka 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 Kosaka, you can refer to this Hourly UV Index in Kosaka.

Maximum UV Index Levels in Kosaka for March

The chart shows the monthly maximum UV Index (UVI) for Kosaka 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 Kosaka typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346891010119642
Data source: Kosaka 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 Kosaka Compares to Other Months

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

This table compares monthly weather conditions in Kosaka, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)78 mm (3.1 inches)79%moderate
February Weather-3°C (28°F)108 mm (4.3 inches)78%moderate
March Weather2°C (35°F)107 mm (4.2 inches)77%high
April Weather7°C (45°F)127 mm (5.0 inches)78%very high
May Weather14°C (57°F)116 mm (4.6 inches)86%very high
June Weather17°C (63°F)142 mm (5.6 inches)91%very high
July Weather22°C (71°F)168 mm (6.6 inches)95%very high
August Weather22°C (73°F)179 mm (7.1 inches)97%extreme
September Weather18°C (65°F)137 mm (5.4 inches)89%very high
October Weather12°C (54°F)166 mm (6.5 inches)81%high
November Weather6°C (42°F)100 mm (4.0 inches)78%moderate
December Weather-1°C (30°F)114 mm (4.5 inches)77%low

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