August Weather in Tosu, Japan

Last updated: August 23, 2025

In August, the average temperature in Tosu, Japan is a warm 28°C (82°F). Expect minimums of 19°C (66°F) and maximums reaching up to 36°C (97°F). The area experiences significant rainfall, with a total of 331 mm (13.0 in) over approximately 15 days. Additionally, the average humidity hovers around a balmy 91%, contributing to the region's tropical feel.

August Temperature in Tosu

In August in Tosu, the average temperature is 28°C (82°F), with maximums reaching 36°C (97°F) and minimums dipping to as low as 19°C (66°F). This makes it an ideal time for travelers seeking warm weather and pleasant conditions for outdoor activities.

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

The chart illustrates August 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, August typically has an average temperature of 28°C (82°F), with highs reaching up to 36°C (97°F) and lows dropping to around 19°C (66°F).

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

August Precipitation in Tosu

In Tosu in August, the total precipitation amount is 331 mm (13.0 in), distributed over 15 days.

August Precipitation Trends in Tosu

The chart displays monthly precipitation patterns in Tosu, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Tosu, August typically receives around 331 mm (13.0 inches) of precipitation spread over approximately 15 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Tosu

In Tosu in August humidity is 91%. With an average temperature of 28°C (82°F), this humidity feels like a thick blanket wrapping around you, making each step feel heavy and every breath slightly more laborious, which can be quite challenging for traveling.

August Average Humidity in Tosu

This chart illustrates the average monthly humidity levels in Tosu, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Tosu is approximately 91%, offering insight into how humid the weather typically is during this month.

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

August UV Index in Tosu

In Tosu in August, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Tosu.

Maximum UV Index Levels in Tosu for August

The chart shows the monthly maximum UV Index (UVI) for Tosu in August, 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 August, the maximum UV index in Tosu typically reaches 12, which falls under the extreme exposure category.

Data source: Tosu August 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 August 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 August’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 August’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