March Weather in Isawa, Japan

Last updated: August 23, 2025

In March, the average temperature in Isawa, Japan hovers around 5°C (41°F), with extremes reaching as low as -7°C (21°F) and soaring up to 21°C (70°F). This month also sees 144 mm (5.7 in) of precipitation spread across 13 days, contributing to an average humidity of 70%.

March Temperature in Isawa

In March in Isawa, the average temperature is 5°C (41°F). Maximums can reach 21°C (70°F) and minimums can be as low as -7°C (21°F). Overall, travelers should prepare for a chilly climate with the potential for warmer days, making it advisable to pack layers for varied conditions.

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

The chart illustrates March temperature patterns in Isawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Isawa, March typically has an average temperature of 5°C (41°F), with highs reaching up to 21°C (70°F) and lows dropping to around -7°C (21°F).

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

March Precipitation in Isawa

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

March Precipitation Trends in Isawa

The chart displays monthly precipitation patterns in Isawa, 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 Isawa, 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.

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Millimeters (mm) Inches (in)

March Humidity in Isawa

In Isawa in March, humidity is 70%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that penetrates your clothes, making outdoor activities less enjoyable and requiring warm layers to stay comfortable while traveling.

March Average Humidity in Isawa

This chart illustrates the average monthly humidity levels in Isawa, 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 Isawa is approximately 70%, 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 Isawa

In Isawa 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 Isawa.

Maximum UV Index Levels in Isawa for March

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

Data source: Isawa 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 Isawa Compares to Other Months

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

This table compares monthly weather conditions in Isawa, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (31°F)	48 mm (1.9 inches)	76%	moderate
February Weather	0°C (33°F)	58 mm (2.3 inches)	74%	high
March Weather	5°C (41°F)	144 mm (5.7 inches)	70%	very high
April Weather	9°C (48°F)	138 mm (5.4 inches)	74%	very high
May Weather	14°C (58°F)	148 mm (5.8 inches)	81%	extreme
June Weather	17°C (63°F)	179 mm (7.1 inches)	88%	extreme
July Weather	21°C (70°F)	320 mm (12.6 inches)	93%	extreme
August Weather	23°C (73°F)	190 mm (7.5 inches)	90%	extreme
September Weather	18°C (65°F)	208 mm (8.2 inches)	86%	very high
October Weather	13°C (55°F)	324 mm (12.8 inches)	83%	high
November Weather	7°C (45°F)	56 mm (2.2 inches)	80%	moderate
December Weather	2°C (36°F)	52 mm (2.1 inches)	78%	moderate