August Weather in Sumoto, Japan

Last updated: August 23, 2025

In August, the average temperature in Sumoto, Japan hovers around 27°C (81°F). Expect comfortable days, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 30°C (87°F). However, be prepared for variable weather: precipitation averages 154 mm (6.1 in) over 9 days, accompanied by a high average humidity of 92%.

August Temperature in Sumoto

In August in Sumoto, the average temperature is 27°C (81°F). The maximum can reach 30°C (87°F), while the minimum can drop to as low as 22°C (72°F). This mild and pleasant climate makes Sumoto an excellent destination for travelers looking to enjoy warm weather and outdoor activities.

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

The chart illustrates August temperature patterns in Sumoto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sumoto, August typically has an average temperature of 27°C (81°F), with highs reaching up to 30°C (87°F) and lows dropping to around 22°C (72°F).

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

August Precipitation in Sumoto

In Sumoto in August, the precipitation amount is 154 mm (6.1 in) spread over 9 days.

August Precipitation Trends in Sumoto

The chart displays monthly precipitation patterns in Sumoto, 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 Sumoto, August typically receives around 154 mm (6.1 inches) of precipitation spread over approximately 9 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 Sumoto

In Sumoto in August, humidity is 92%. With an average temperature of 27°C (81°F), this humidity feels like walking through a warm, thick blanket, making travel exhausting and sticky, as the air is laden with moisture that clings to your skin and makes even short excursions feel like a workout.

August Average Humidity in Sumoto

This chart illustrates the average monthly humidity levels in Sumoto, 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 Sumoto is approximately 92%, 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 Sumoto

In Sumoto in August, 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 Sumoto.

Maximum UV Index Levels in Sumoto for August

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

Data source: Sumoto 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 Sumoto Compares to Other Months

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

This table compares monthly weather conditions in Sumoto, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (46°F)	65 mm (2.6 inches)	82%	moderate
February Weather	8°C (46°F)	74 mm (2.9 inches)	79%	moderate
March Weather	10°C (51°F)	117 mm (4.6 inches)	73%	very high
April Weather	14°C (57°F)	132 mm (5.2 inches)	74%	extreme
May Weather	18°C (64°F)	171 mm (6.7 inches)	84%	extreme
June Weather	21°C (70°F)	192 mm (7.5 inches)	86%	extreme
July Weather	25°C (78°F)	291 mm (11.5 inches)	92%	extreme
August Weather	27°C (81°F)	154 mm (6.1 inches)	92%	extreme
September Weather	25°C (77°F)	206 mm (8.1 inches)	87%	very high
October Weather	20°C (69°F)	292 mm (11.5 inches)	85%	high
November Weather	16°C (60°F)	68 mm (2.7 inches)	84%	moderate
December Weather	11°C (51°F)	83 mm (3.3 inches)	82%	moderate