August Weather in Moriyama, Japan

Last updated: August 23, 2025

In August, the average temperature in Moriyama, Japan reaches a warm 28°C (83°F), while temperatures can range from a comfortable 18°C (65°F) to a sizzling 38°C (101°F). Expect 168 mm (6.6 in) of precipitation over approximately 12 days and enjoy the tropical feel with an average humidity of 91%.

August Temperature in Moriyama

In August in Moriyama, the average temperature is 28°C (83°F), with maximums reaching up to 38°C (101°F) and minimums dropping as low as 18°C (65°F). This warm weather makes it an ideal time for travelers to enjoy outdoor activities and explore the beauty of Moriyama.

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

The chart illustrates August temperature patterns in Moriyama, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Moriyama, August typically has an average temperature of 28°C (83°F), with highs reaching up to 38°C (101°F) and lows dropping to around 18°C (65°F).

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

August Precipitation in Moriyama

In Moriyama in August, the precipitation amount is 168 mm (6.6 in) over the course of 12 days.

August Precipitation Trends in Moriyama

The chart displays monthly precipitation patterns in Moriyama, 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 Moriyama, August typically receives around 168 mm (6.6 inches) of precipitation spread over approximately 12 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 Moriyama

In Moriyama in August humidity is 91%. With an average temperature of 28°C (83°F), this humidity feels like a thick blanket wrapping around you, making traveling feel exhausting and draining, as each step is met with a wave of warmth and heaviness in the air.

August Average Humidity in Moriyama

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

In Moriyama 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 Moriyama.

Maximum UV Index Levels in Moriyama for August

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

Data source: Moriyama 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 Moriyama Compares to Other Months

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

This table compares monthly weather conditions in Moriyama, 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 (39°F)	52 mm (2.0 inches)	82%	moderate
February Weather	5°C (41°F)	59 mm (2.3 inches)	79%	high
March Weather	9°C (49°F)	116 mm (4.6 inches)	74%	very high
April Weather	14°C (57°F)	138 mm (5.4 inches)	76%	very high
May Weather	19°C (66°F)	144 mm (5.7 inches)	83%	extreme
June Weather	22°C (72°F)	141 mm (5.6 inches)	87%	extreme
July Weather	26°C (80°F)	253 mm (10.0 inches)	93%	extreme
August Weather	28°C (83°F)	168 mm (6.6 inches)	91%	extreme
September Weather	24°C (75°F)	136 mm (5.4 inches)	87%	very high
October Weather	18°C (65°F)	227 mm (8.9 inches)	85%	high
November Weather	12°C (54°F)	41 mm (1.6 inches)	83%	moderate
December Weather	6°C (44°F)	63 mm (2.5 inches)	83%	moderate