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March Weather in Sai, Japan

Last updated: August 23, 2025

In March, the average temperature in Sai, Japan hovers around 4°C (40°F), with a minimum dropping to -3°C (27°F) and a maximum reaching 12°C (54°F). Be prepared for some wet days, as 93 mm (3.7 in) of precipitation is expected over 15 days, contributing to an average humidity of 77%. Embrace the cooler climate with layers and an umbrella!

March Temperature in Sai

In March in Sai, the average temperature is 4°C (40°F). Maximums can reach 12°C (54°F), and minimums can be as low as -3°C (27°F). Travelers should prepare for chilly weather and pack warm clothing for their visit.

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

The chart illustrates March temperature patterns in Sai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sai, March typically has an average temperature of 4°C (40°F), with highs reaching up to 12°C (54°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec343340465259677269614938
Data source: Temperature data for Sai 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 Sai

In Sai in March, the precipitation amount is 93 mm (3.7 in) over the course of 15 days.

March Precipitation Trends in Sai

The chart displays monthly precipitation patterns in Sai, 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 Sai, March typically receives around 93 mm (3.7 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec1121179398104112110188132156131168
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Sai

In Sai in March humidity is 77%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that penetrates your clothing, making outdoor exploration less enjoyable and prompting travelers to seek shelter or warm indoor activities instead.

March Average Humidity in Sai

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

In Sai in March, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Sai.

Maximum UV Index Levels in Sai for March

The chart shows the monthly maximum UV Index (UVI) for Sai 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 Sai typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235891010118632
Data source: Sai 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 Sai Compares to Other Months

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

This table compares monthly weather conditions in Sai, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)112 mm (4.4 inches)79%low
February Weather1°C (34°F)117 mm (4.6 inches)78%moderate
March Weather4°C (40°F)93 mm (3.7 inches)77%moderate
April Weather8°C (46°F)98 mm (3.9 inches)78%very high
May Weather11°C (53°F)103 mm (4.1 inches)86%very high
June Weather15°C (59°F)112 mm (4.4 inches)91%very high
July Weather19°C (67°F)110 mm (4.3 inches)95%very high
August Weather22°C (72°F)187 mm (7.4 inches)97%extreme
September Weather21°C (69°F)132 mm (5.2 inches)89%very high
October Weather16°C (61°F)156 mm (6.1 inches)81%high
November Weather9°C (49°F)131 mm (5.1 inches)78%moderate
December Weather3°C (38°F)167 mm (6.6 inches)77%low

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