August Weather in Isa, Japan

Last updated: August 23, 2025

In August, the average temperature in Isa, Japan hovers around 28°C (82°F), with a minimum of 21°C (71°F) and a maximum reaching up to 35°C (95°F). Be prepared for some rain, as the region sees about 234 mm (9.2 in) of precipitation spread over 16 days. With an average humidity of 85%, it's a great time to experience the lush, vibrant atmosphere!

August Temperature in Isa

In August in Isa, the average temperature is 28°C (82°F), with maximums reaching up to 35°C (95°F) and minimums dropping to as low as 21°C (71°F). This favorable climate makes Isa an ideal destination for travelers looking to enjoy warm and pleasant weather.

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

The chart illustrates August temperature patterns in Isa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Isa, August typically has an average temperature of 28°C (82°F), with highs reaching up to 35°C (95°F) and lows dropping to around 21°C (71°F).

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

August Precipitation in Isa

In Isa in August, the precipitation amount is 234 mm (9.2 in) over a period of 16 days.

August Precipitation Trends in Isa

The chart displays monthly precipitation patterns in Isa, 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 Isa, August typically receives around 234 mm (9.2 inches) of precipitation spread over approximately 16 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 Isa

In Isa in August humidity is 85%. With an average temperature of 28°C (82°F), this humidity feels like a warm blanket enveloping you, making outdoor activities a sweaty endeavor and requiring frequent breaks to stay refreshed.

August Average Humidity in Isa

This chart illustrates the average monthly humidity levels in Isa, 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 Isa is approximately 85%, 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 Isa

In Isa in August, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Isa.

Maximum UV Index Levels in Isa for August

The chart shows the monthly maximum UV Index (UVI) for Isa 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 Isa typically reaches 13, which falls under the extreme exposure category.

Data source: Isa 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 Isa Compares to Other Months

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

This table compares monthly weather conditions in Isa, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	61 mm (2.4 inches)	72%	moderate
February Weather	8°C (47°F)	110 mm (4.3 inches)	68%	high
March Weather	12°C (54°F)	162 mm (6.4 inches)	72%	very high
April Weather	16°C (61°F)	159 mm (6.3 inches)	79%	extreme
May Weather	20°C (68°F)	261 mm (10.3 inches)	83%	extreme
June Weather	23°C (74°F)	386 mm (15.2 inches)	86%	extreme
July Weather	26°C (80°F)	483 mm (19.0 inches)	90%	extreme
August Weather	28°C (82°F)	234 mm (9.2 inches)	85%	extreme
September Weather	25°C (77°F)	259 mm (10.2 inches)	80%	extreme
October Weather	20°C (69°F)	141 mm (5.6 inches)	78%	very high
November Weather	14°C (57°F)	102 mm (4.0 inches)	76%	high
December Weather	9°C (48°F)	94 mm (3.7 inches)	74%	moderate