April Weather in Kuromatsunai, Japan

Last updated: August 23, 2025

In April, the average temperature in Kuromatsunai, Japan hovers around 5°C (42°F). Expect chilly days with minimal temperatures dropping to -2°C (29°F) and a maximum of 14°C (58°F). Additionally, the area sees about 93 mm (3.7 in) of precipitation over 12 days, contributing to an average humidity level of 81%. Be prepared for a mix of cool air and damp conditions!

April Temperature in Kuromatsunai

In April in Kuromatsunai, the average temperature is 5°C (42°F). The maximum can reach 14°C (58°F), and the minimum can be as low as -2°C (29°F). Travelers should be prepared for chilly weather and dress in layers to stay comfortable.

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

The chart illustrates April temperature patterns in Kuromatsunai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kuromatsunai, April typically has an average temperature of 5°C (42°F), with highs reaching up to 14°C (58°F) and lows dropping to around -2°C (29°F).

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

April Precipitation in Kuromatsunai

In Kuromatsunai in April, the precipitation amount is 93 mm (3.7 in) over the course of 12 days.

April Precipitation Trends in Kuromatsunai

The chart displays monthly precipitation patterns in Kuromatsunai, 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 Kuromatsunai, April typically receives around 93 mm (3.7 inches) of precipitation spread over approximately 12 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 Kuromatsunai

In Kuromatsunai in April, humidity is 81%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures feel more daunting and travel less invigorating.

April Average Humidity in Kuromatsunai

This chart illustrates the average monthly humidity levels in Kuromatsunai, 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 Kuromatsunai is approximately 81%, 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 Kuromatsunai

In Kuromatsunai in April, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Kuromatsunai.

Maximum UV Index Levels in Kuromatsunai for April

The chart shows the monthly maximum UV Index (UVI) for Kuromatsunai 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 Kuromatsunai typically reaches 7, which falls under the high exposure category.

Data source: Kuromatsunai 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 Kuromatsunai Compares to Other Months

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

This table compares monthly weather conditions in Kuromatsunai, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (28°F)	117 mm (4.6 inches)	84%	low
February Weather	-3°C (28°F)	114 mm (4.5 inches)	83%	moderate
March Weather	1°C (35°F)	104 mm (4.1 inches)	81%	high
April Weather	5°C (42°F)	93 mm (3.7 inches)	81%	high
May Weather	11°C (52°F)	90 mm (3.5 inches)	86%	very high
June Weather	15°C (59°F)	119 mm (4.7 inches)	87%	very high
July Weather	20°C (67°F)	116 mm (4.6 inches)	93%	very high
August Weather	21°C (70°F)	158 mm (6.2 inches)	95%	very high
September Weather	19°C (66°F)	151 mm (5.9 inches)	88%	very high
October Weather	13°C (56°F)	165 mm (6.5 inches)	83%	moderate
November Weather	6°C (44°F)	199 mm (7.8 inches)	79%	moderate
December Weather	0°C (31°F)	197 mm (7.7 inches)	80%	low