March Weather in Onna, Japan

Last updated: August 23, 2025

In Onna, Japan, the average temperature in March hovers around 20°C (68°F), with a minimum dipping to 14°C (57°F) and a maximum reaching 24°C (76°F). Expect 109 mm (4.3 in) of precipitation spread over 12 days, contributing to a comfortable average humidity of 76%. Perfect for those who enjoy a mild, slightly damp climate!

March Temperature in Onna

In March in Onna, the average temperature is 20°C (68°F). Maximums can reach 24°C (76°F), while minimums can drop to as low as 14°C (57°F). This makes it an ideal time for travelers seeking mild weather and enjoyable outdoor activities.

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

The chart illustrates March temperature patterns in Onna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Onna, March typically has an average temperature of 20°C (68°F), with highs reaching up to 24°C (76°F) and lows dropping to around 14°C (57°F).

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

March Precipitation in Onna

In Onna in March, the total precipitation amount is 109 mm (4.3 in) during a span of 12 days.

March Precipitation Trends in Onna

The chart displays monthly precipitation patterns in Onna, 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 Onna, March typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 12 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 Onna

In Onna in March, humidity is 76%. With an average temperature of 20°C (68°F), this humidity feels like a warm blanket wrapping around you, making outdoor exploration both exhilarating and slightly stifling, ideal for leisurely strolls but necessitating frequent breaks to hydrate and cool off.

March Average Humidity in Onna

This chart illustrates the average monthly humidity levels in Onna, 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 Onna is approximately 76%, 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 Onna

In Onna in March, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Onna.

Maximum UV Index Levels in Onna for March

The chart shows the monthly maximum UV Index (UVI) for Onna 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 Onna typically reaches 11, which falls under the extreme exposure category.

Data source: Onna 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 Onna Compares to Other Months

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

This table compares monthly weather conditions in Onna, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	18°C (65°F)	99 mm (3.9 inches)	71%	high
February Weather	18°C (65°F)	98 mm (3.9 inches)	71%	very high
March Weather	20°C (68°F)	109 mm (4.3 inches)	76%	extreme
April Weather	21°C (70°F)	146 mm (5.7 inches)	82%	extreme
May Weather	24°C (75°F)	213 mm (8.4 inches)	84%	extreme
June Weather	26°C (80°F)	328 mm (12.9 inches)	86%	extreme
July Weather	28°C (83°F)	180 mm (7.1 inches)	86%	extreme
August Weather	28°C (83°F)	187 mm (7.4 inches)	82%	extreme
September Weather	28°C (82°F)	237 mm (9.3 inches)	82%	extreme
October Weather	26°C (78°F)	149 mm (5.8 inches)	80%	very high
November Weather	23°C (74°F)	106 mm (4.2 inches)	79%	very high
December Weather	20°C (68°F)	162 mm (6.4 inches)	75%	high