April Weather in Tosa, Japan

Last updated: August 23, 2025

In April, the average temperature in Tosa, Japan hovers around 15°C (59°F). Expect a minimum chill of 4°C (39°F) and a warm maximum of 24°C (75°F). This month also sees an average precipitation of 203 mm (8.0 in) spread over about 10 days, while maintaining an average humidity level of 76%.

April Temperature in Tosa

In April in Tosa, the average temperature is 15°C (59°F). The maximum can reach 24°C (75°F) and the minimum can be as low as 4°C (39°F). Pack layers to enjoy the mild weather while exploring all that Tosa has to offer!

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

The chart illustrates April temperature patterns in Tosa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tosa, April typically has an average temperature of 15°C (59°F), with highs reaching up to 24°C (75°F) and lows dropping to around 4°C (39°F).

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

April Precipitation in Tosa

In Tosa in April, the precipitation amount is 203 mm (8.0 in) over the course of 10 days.

April Precipitation Trends in Tosa

The chart displays monthly precipitation patterns in Tosa, 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 Tosa, April typically receives around 203 mm (8.0 inches) of precipitation spread over approximately 10 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 Tosa

In Tosa in April humidity is 76%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities less enjoyable and often leading to a quick sense of fatigue while traveling.

April Average Humidity in Tosa

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

In Tosa 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 Tosa.

Maximum UV Index Levels in Tosa for April

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

Data source: Tosa 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 Tosa Compares to Other Months

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

This table compares monthly weather conditions in Tosa, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	69 mm (2.7 inches)	74%	moderate
February Weather	8°C (46°F)	100 mm (3.9 inches)	70%	high
March Weather	12°C (53°F)	179 mm (7.1 inches)	70%	very high
April Weather	15°C (59°F)	203 mm (8.0 inches)	76%	extreme
May Weather	19°C (67°F)	231 mm (9.1 inches)	82%	extreme
June Weather	22°C (72°F)	314 mm (12.4 inches)	86%	extreme
July Weather	26°C (79°F)	579 mm (22.8 inches)	91%	extreme
August Weather	27°C (81°F)	337 mm (13.3 inches)	88%	extreme
September Weather	25°C (76°F)	348 mm (13.7 inches)	85%	very high
October Weather	20°C (68°F)	337 mm (13.3 inches)	82%	high
November Weather	14°C (58°F)	81 mm (3.2 inches)	79%	high
December Weather	9°C (49°F)	80 mm (3.1 inches)	77%	moderate