August Weather in Sasayama, Japan

Last updated: August 23, 2025

In Sasayama, Japan, the average temperature in August hovers around 28°C (82°F), providing a warm environment for outdoor activities. However, be prepared for temperature fluctuations, with minimums dipping to 18°C (64°F) and maximums soaring to 37°C (99°F). During this month, expect 223 mm (8.8 in) of precipitation spread across approximately 14 days, while the average humidity remains high at 91%, creating a tropical feel.

August Temperature in Sasayama

In August in Sasayama, the average temperature is 28°C (82°F). Maximums can reach 37°C (99°F), while minimums can be as low as 18°C (64°F). This makes Sasayama a perfect destination for travelers looking to enjoy warm weather and outdoor activities.

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

The chart illustrates August temperature patterns in Sasayama, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sasayama, August typically has an average temperature of 28°C (82°F), with highs reaching up to 37°C (99°F) and lows dropping to around 18°C (64°F).

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

August Precipitation in Sasayama

In Sasayama in August, the total precipitation amount is 223 mm (8.8 in) over a span of 14 days, indicating a significant rainfall during that period.

August Precipitation Trends in Sasayama

The chart displays monthly precipitation patterns in Sasayama, 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 Sasayama, August typically receives around 223 mm (8.8 inches) of precipitation spread over approximately 14 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

August Humidity in Sasayama

In Sasayama 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 Sasayama

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

In Sasayama 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 Sasayama.

Maximum UV Index Levels in Sasayama for August

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

Data source: Sasayama 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 Sasayama Compares to Other Months

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

This table compares monthly weather conditions in Sasayama, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	46 mm (1.8 inches)	82%	moderate
February Weather	5°C (41°F)	59 mm (2.3 inches)	79%	high
March Weather	9°C (49°F)	111 mm (4.4 inches)	74%	very high
April Weather	13°C (56°F)	141 mm (5.6 inches)	76%	very high
May Weather	19°C (66°F)	140 mm (5.5 inches)	83%	extreme
June Weather	22°C (72°F)	147 mm (5.8 inches)	87%	extreme
July Weather	26°C (79°F)	327 mm (12.9 inches)	93%	extreme
August Weather	28°C (82°F)	223 mm (8.8 inches)	91%	extreme
September Weather	23°C (75°F)	205 mm (8.1 inches)	87%	very high
October Weather	18°C (65°F)	230 mm (9.1 inches)	85%	high
November Weather	12°C (54°F)	43 mm (1.7 inches)	83%	moderate
December Weather	6°C (44°F)	60 mm (2.4 inches)	83%	moderate