August Weather in Innoshima, Japan

Last updated: August 23, 2025

In August, the average temperature in Innoshima, Japan hovers around 29°C (84°F). Daily highs can reach up to 33°C (92°F), while the lows may dip to 22°C (72°F). Expect about 133 mm (5.2 in) of precipitation spread across 8 days, contributing to an average humidity level of 92%.

August Temperature in Innoshima

In August in Innoshima, the average temperature is 29°C (84°F). Maximums can reach 33°C (92°F), while minimums can drop to as low as 22°C (72°F). This makes it an ideal time for travelers to enjoy warm weather and outdoor activities.

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

The chart illustrates August temperature patterns in Innoshima, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Innoshima, August typically has an average temperature of 29°C (84°F), with highs reaching up to 33°C (92°F) and lows dropping to around 22°C (72°F).

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

August Precipitation in Innoshima

In Innoshima in August, the total precipitation amount is 133 mm (5.2 in) during a span of 8 days.

August Precipitation Trends in Innoshima

The chart displays monthly precipitation patterns in Innoshima, 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 Innoshima, August typically receives around 133 mm (5.2 inches) of precipitation spread over approximately 8 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 Innoshima

In Innoshima in August, humidity is 92%. With an average temperature of 29°C (84°F), this humidity feels like a heavy blanket enveloping you, making travel feel sticky and intense as sweat clings to your skin and every breeze becomes a fleeting relief.

August Average Humidity in Innoshima

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

In Innoshima 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 Innoshima.

Maximum UV Index Levels in Innoshima for August

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

Data source: Innoshima 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 Innoshima Compares to Other Months

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

This table compares monthly weather conditions in Innoshima, 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)	54 mm (2.1 inches)	82%	moderate
February Weather	7°C (45°F)	67 mm (2.6 inches)	79%	moderate
March Weather	11°C (51°F)	105 mm (4.1 inches)	73%	very high
April Weather	14°C (58°F)	122 mm (4.8 inches)	74%	very high
May Weather	19°C (66°F)	116 mm (4.6 inches)	84%	extreme
June Weather	22°C (73°F)	151 mm (5.9 inches)	86%	extreme
July Weather	26°C (80°F)	285 mm (11.2 inches)	92%	extreme
August Weather	29°C (84°F)	133 mm (5.2 inches)	92%	extreme
September Weather	25°C (78°F)	177 mm (7.0 inches)	87%	very high
October Weather	20°C (69°F)	201 mm (7.9 inches)	85%	high
November Weather	15°C (59°F)	50 mm (2.0 inches)	84%	high
December Weather	10°C (50°F)	64 mm (2.5 inches)	82%	moderate