April Weather in Tomakomai, Japan

Last updated: August 23, 2025

In Tomakomai, Japan, the average temperature in April hovers around 5°C (42°F), with a chill that can dip to a brisk -4°C (24°F) and a peak of 17°C (62°F). Expect 93 mm (3.7 in) of precipitation spread across 13 days, accompanied by a notable average humidity of 81%. Dress accordingly and embrace the distinct climate of this captivating locale!

April Temperature in Tomakomai

In April in Tomakomai, the average temperature is 5°C (42°F). The maximum can reach 17°C (62°F), while the minimum can drop as low as -4°C (24°F). Be sure to pack layers to stay comfortable during your travels!

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

The chart illustrates April temperature patterns in Tomakomai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tomakomai, April typically has an average temperature of 5°C (42°F), with highs reaching up to 17°C (62°F) and lows dropping to around -4°C (24°F).

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

April Precipitation in Tomakomai

In Tomakomai in April, the total precipitation amount is 93 mm (3.7 in), which falls over the course of 13 days.

April Precipitation Trends in Tomakomai

The chart displays monthly precipitation patterns in Tomakomai, 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 Tomakomai, April typically receives around 93 mm (3.7 inches) of precipitation spread over approximately 13 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 Tomakomai

In Tomakomai 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 Tomakomai

This chart illustrates the average monthly humidity levels in Tomakomai, 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 Tomakomai 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 Tomakomai

In Tomakomai 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 Tomakomai.

Maximum UV Index Levels in Tomakomai for April

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

Data source: Tomakomai 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 Tomakomai Compares to Other Months

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

This table compares monthly weather conditions in Tomakomai, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	49 mm (1.9 inches)	84%	low
February Weather	-4°C (26°F)	53 mm (2.1 inches)	83%	moderate
March Weather	1°C (34°F)	89 mm (3.5 inches)	81%	moderate
April Weather	5°C (42°F)	93 mm (3.7 inches)	81%	high
May Weather	11°C (51°F)	90 mm (3.6 inches)	86%	very high
June Weather	14°C (58°F)	128 mm (5.1 inches)	87%	very high
July Weather	19°C (66°F)	121 mm (4.7 inches)	93%	very high
August Weather	20°C (69°F)	206 mm (8.1 inches)	95%	very high
September Weather	18°C (64°F)	145 mm (5.7 inches)	88%	very high
October Weather	12°C (54°F)	143 mm (5.6 inches)	83%	moderate
November Weather	6°C (42°F)	102 mm (4.0 inches)	79%	moderate
December Weather	-1°C (30°F)	62 mm (2.4 inches)	80%	low