August Weather in Ashiya, Japan

Last updated: August 23, 2025

In August, the average temperature in Ashiya, Japan reaches a warm 29°C (84°F). Visitors can expect a comfortable minimum of 20°C (68°F), while peak temperatures can soar to 38°C (100°F). The region experiences a fair amount of rainfall, with 255 mm (10.0 in) of precipitation over 14 days. Humidity remains high at an average of 91%, ensuring a tropical atmosphere throughout the month.

August Temperature in Ashiya

In August, in Ashiya, the average temperature is 29°C (84°F). The maximum can reach 38°C (100°F) and the minimum can be as low as 20°C (68°F). This makes it a perfect time to explore the beautiful sights and enjoy outdoor activities in Ashiya.

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

The chart illustrates August temperature patterns in Ashiya, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ashiya, August typically has an average temperature of 29°C (84°F), with highs reaching up to 38°C (100°F) and lows dropping to around 20°C (68°F).

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

August Precipitation in Ashiya

In Ashiya in August, the total precipitation amount is 255 mm (10.0 in) spread over 14 days.

August Precipitation Trends in Ashiya

The chart displays monthly precipitation patterns in Ashiya, 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 Ashiya, August typically receives around 255 mm (10.0 inches) of precipitation spread over approximately 14 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 Ashiya

In Ashiya in August humidity is 91%. With an average temperature of 29°C (84°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier and every breath more labored, which can be quite challenging for traveling.

August Average Humidity in Ashiya

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

In Ashiya 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 Ashiya.

Maximum UV Index Levels in Ashiya for August

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

Data source: Ashiya 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 Ashiya Compares to Other Months

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

This table compares monthly weather conditions in Ashiya, 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 (44°F)	53 mm (2.1 inches)	75%	moderate
February Weather	7°C (45°F)	68 mm (2.7 inches)	71%	high
March Weather	11°C (53°F)	118 mm (4.7 inches)	71%	very high
April Weather	16°C (60°F)	109 mm (4.3 inches)	78%	extreme
May Weather	20°C (69°F)	135 mm (5.3 inches)	84%	extreme
June Weather	23°C (74°F)	180 mm (7.1 inches)	86%	extreme
July Weather	27°C (81°F)	298 mm (11.7 inches)	92%	extreme
August Weather	29°C (84°F)	255 mm (10.0 inches)	91%	extreme
September Weather	25°C (77°F)	202 mm (8.0 inches)	84%	extreme
October Weather	20°C (68°F)	110 mm (4.3 inches)	83%	high
November Weather	14°C (57°F)	43 mm (1.7 inches)	81%	high
December Weather	8°C (47°F)	59 mm (2.3 inches)	79%	moderate