March Weather in Koya, Japan

Last updated: August 23, 2025

In Koya, Japan, the average temperature in March hovers around 9°C (49°F). Expect a minimum of -2°C (29°F) and a pleasant maximum of 21°C (70°F). With 127 mm (5.0 in) of precipitation spread over 11 days, it’s a month when you might want to keep an umbrella handy. The average humidity sits at a comfortable 74%, adding to the month's unique atmosphere.

March Temperature in Koya

In March in Koya, the average temperature is 9°C (49°F). The maximum can reach 21°C (70°F), and the minimum can be as low as -2°C (29°F). Therefore, travelers should be prepared for a wide range of temperatures and dress in layers to ensure comfort during their visit.

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

The chart illustrates March temperature patterns in Koya, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Koya, March typically has an average temperature of 9°C (49°F), with highs reaching up to 21°C (70°F) and lows dropping to around -2°C (29°F).

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

March Precipitation in Koya

In Koya in March, the precipitation amount is 127 mm (5.0 in), occurring over 11 days.

March Precipitation Trends in Koya

The chart displays monthly precipitation patterns in Koya, 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 Koya, March typically receives around 127 mm (5.0 inches) of precipitation spread over approximately 11 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 Koya

In Koya in March humidity is 74%. With an average temperature of 9°C (49°F), this humidity feels like a chilly embrace that can make outdoor activities somewhat uncomfortable; travelers may find themselves needing to dress in layers to stay warm while also coping with the dampness in the air.

March Average Humidity in Koya

This chart illustrates the average monthly humidity levels in Koya, 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 Koya is approximately 74%, 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 Koya

In Koya 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 Koya.

Maximum UV Index Levels in Koya for March

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

Data source: Koya 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 Koya Compares to Other Months

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

This table compares monthly weather conditions in Koya, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	67 mm (2.6 inches)	82%	moderate
February Weather	5°C (41°F)	83 mm (3.3 inches)	79%	high
March Weather	9°C (49°F)	127 mm (5.0 inches)	74%	very high
April Weather	14°C (57°F)	132 mm (5.2 inches)	76%	extreme
May Weather	19°C (66°F)	169 mm (6.7 inches)	83%	extreme
June Weather	22°C (72°F)	220 mm (8.7 inches)	87%	extreme
July Weather	26°C (79°F)	324 mm (12.7 inches)	93%	extreme
August Weather	28°C (82°F)	203 mm (8.0 inches)	91%	extreme
September Weather	24°C (75°F)	204 mm (8.0 inches)	87%	very high
October Weather	18°C (65°F)	265 mm (10.5 inches)	85%	high
November Weather	12°C (54°F)	62 mm (2.4 inches)	83%	high
December Weather	7°C (44°F)	79 mm (3.1 inches)	83%	moderate