April Weather in Tosu, Japan

Last updated: August 23, 2025

In April, the average temperature in Tosu, Japan is a pleasant 15°C (59°F), with a minimum drop to 2°C (35°F) and a peak of 29°C (84°F). Expect 124 mm (4.9 in) of precipitation spread over approximately 9 days, accompanied by a relatively high average humidity of 78%. Whether you're exploring or relaxing, be prepared for a blend of comfortable warmth and a touch of rain!

April Temperature in Tosu

In April in Tosu, the average temperature is 15°C (59°F). Maximum temperatures can reach 29°C (84°F), while minimum temperatures can be as low as 2°C (35°F). This diverse temperature range makes Tosu an ideal destination for travelers seeking both warm and cool experiences.

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

The chart illustrates April temperature patterns in Tosu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tosu, April typically has an average temperature of 15°C (59°F), with highs reaching up to 29°C (84°F) and lows dropping to around 2°C (35°F).

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

April Precipitation in Tosu

In Tosu in April, the precipitation amount is 124 mm (4.9 in) over the course of 9 days.

April Precipitation Trends in Tosu

The chart displays monthly precipitation patterns in Tosu, 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 Tosu, April typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 9 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 Tosu

In Tosu in April, humidity is 78%. With an average temperature of 15°C (59°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making outdoor activities a bit more tiring and requiring frequent breaks for hydration as you explore the area.

April Average Humidity in Tosu

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

In Tosu in April, 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 Tosu.

Maximum UV Index Levels in Tosu for April

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

Data source: Tosu 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 Tosu Compares to Other Months

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

This table compares monthly weather conditions in Tosu, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (43°F)	54 mm (2.1 inches)	75%	moderate
February Weather	7°C (44°F)	85 mm (3.4 inches)	71%	high
March Weather	11°C (52°F)	133 mm (5.2 inches)	71%	very high
April Weather	15°C (59°F)	124 mm (4.9 inches)	78%	extreme
May Weather	20°C (68°F)	200 mm (7.9 inches)	84%	extreme
June Weather	23°C (74°F)	233 mm (9.2 inches)	86%	extreme
July Weather	27°C (80°F)	450 mm (17.7 inches)	92%	extreme
August Weather	28°C (82°F)	331 mm (13.0 inches)	91%	extreme
September Weather	24°C (76°F)	209 mm (8.2 inches)	84%	extreme
October Weather	19°C (66°F)	120 mm (4.7 inches)	83%	high
November Weather	13°C (55°F)	57 mm (2.2 inches)	81%	high
December Weather	7°C (46°F)	71 mm (2.8 inches)	79%	moderate