March Weather in Sanmu, Japan

Last updated: August 23, 2025

In Sanmu, Japan, the average temperature in March is a cool 11°C (52°F). Expect a comfortable range, with minimums dipping to 1°C (33°F) and maximums peaking at 22°C (72°F). During this time, the region experiences a total precipitation of 144 mm (5.7 in) over approximately 13 days, contributing to an average humidity of 68%. Whether you're looking to explore or relax, prepare for a refreshing and varied climate!

March Temperature in Sanmu

In March in Sanmu, the average temperature is 11°C (52°F). The maximum can reach 22°C (72°F), while the minimum can drop to as low as 1°C (33°F). Be sure to pack layers to stay comfortable during your travels!

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

The chart illustrates March temperature patterns in Sanmu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sanmu, March typically has an average temperature of 11°C (52°F), with highs reaching up to 22°C (72°F) and lows dropping to around 1°C (33°F).

Data source: Temperature data for Sanmu generated using information from the Copernicus Climate Change Service.

March Precipitation in Sanmu

In Sanmu in March, the precipitation amount is 144 mm (5.7 in) spread over 13 days.

March Precipitation Trends in Sanmu

The chart displays monthly precipitation patterns in Sanmu, 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 Sanmu, March typically receives around 144 mm (5.7 inches) of precipitation spread over approximately 13 days.

Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

March Humidity in Sanmu

In Sanmu in March humidity is 68%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill clinging to your skin, making outdoor activities a bit uncomfortable and requiring an extra layer for warmth while exploring.

March Average Humidity in Sanmu

This chart illustrates the average monthly humidity levels in Sanmu, 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 Sanmu is approximately 68%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Sanmu

In Sanmu in March, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Sanmu.

Maximum UV Index Levels in Sanmu for March

The chart shows the monthly maximum UV Index (UVI) for Sanmu 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 Sanmu typically reaches 8, which falls under the very high exposure category.

Data source: Sanmu 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 Sanmu Compares to Other Months

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

This table compares monthly weather conditions in Sanmu, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (43°F)	56 mm (2.2 inches)	70%	moderate
February Weather	7°C (45°F)	52 mm (2.0 inches)	69%	moderate
March Weather	11°C (52°F)	144 mm (5.7 inches)	68%	very high
April Weather	14°C (58°F)	112 mm (4.4 inches)	73%	very high
May Weather	19°C (67°F)	132 mm (5.2 inches)	81%	extreme
June Weather	22°C (72°F)	169 mm (6.7 inches)	88%	extreme
July Weather	26°C (78°F)	213 mm (8.4 inches)	94%	extreme
August Weather	27°C (82°F)	95 mm (3.8 inches)	87%	extreme
September Weather	24°C (75°F)	179 mm (7.0 inches)	83%	very high
October Weather	19°C (67°F)	255 mm (10.0 inches)	78%	high
November Weather	14°C (58°F)	109 mm (4.3 inches)	74%	moderate
December Weather	9°C (48°F)	81 mm (3.2 inches)	72%	moderate