April Weather in Uonuma, Japan

Last updated: August 23, 2025

In April, the average temperature in Uonuma, Japan hovers around 9°C (49°F). Expect a range between a chilly -8°C (18°F) and a warm 26°C (79°F). With an average precipitation of 171 mm (6.7 in) spread over 17 days, be prepared for some wet weather. The average humidity is a high 78%, adding to the cool ambiance of the season.

April Temperature in Uonuma

In April in Uonuma, the average temperature is 9°C (49°F). Maximum temperatures can reach 26°C (79°F), while minimums can drop as low as -8°C (18°F). Be prepared for a wide range of temperatures and pack accordingly for your travels!

April Weather in Uonuma: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Uonuma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Uonuma, April typically has an average temperature of 9°C (49°F), with highs reaching up to 26°C (79°F) and lows dropping to around -8°C (18°F).

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

April Precipitation in Uonuma

In Uonuma in April, the precipitation amount is 171 mm (6.7 in) over the course of 17 days.

April Precipitation Trends in Uonuma

The chart displays monthly precipitation patterns in Uonuma, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Uonuma, April typically receives around 171 mm (6.7 inches) of precipitation spread over approximately 17 days.

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

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Millimeters (mm) Inches (in)

April Humidity in Uonuma

In Uonuma in April, humidity is 78%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that clings to your skin, making it essential to dress in layers while traveling, as the cool air combines with the moisture to create a brisk and invigorating atmosphere.

April Average Humidity in Uonuma

This chart illustrates the average monthly humidity levels in Uonuma, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Uonuma is approximately 78%, offering insight into how humid the weather typically is during this month.

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

April UV Index in Uonuma

In Uonuma in April, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Uonuma.

Maximum UV Index Levels in Uonuma for April

The chart shows the monthly maximum UV Index (UVI) for Uonuma in April, 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 April, the maximum UV index in Uonuma typically reaches 9, which falls under the very high exposure category.

Data source: Uonuma April 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 April Weather in Uonuma Compares to Other Months

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

This table compares monthly weather conditions in Uonuma, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (31°F)	254 mm (10.0 inches)	88%	moderate
February Weather	0°C (32°F)	244 mm (9.6 inches)	86%	moderate
March Weather	4°C (39°F)	193 mm (7.6 inches)	81%	very high
April Weather	9°C (49°F)	171 mm (6.7 inches)	78%	very high
May Weather	16°C (61°F)	168 mm (6.6 inches)	81%	very high
June Weather	19°C (67°F)	177 mm (7.0 inches)	88%	extreme
July Weather	24°C (75°F)	371 mm (14.6 inches)	92%	extreme
August Weather	25°C (77°F)	195 mm (7.7 inches)	92%	extreme
September Weather	21°C (69°F)	180 mm (7.1 inches)	89%	very high
October Weather	15°C (59°F)	228 mm (9.0 inches)	87%	high
November Weather	8°C (47°F)	178 mm (7.0 inches)	85%	moderate
December Weather	2°C (35°F)	283 mm (11.2 inches)	86%	moderate