August Weather in Iwata, Japan

Last updated: August 23, 2025

In Iwata, Japan, the average temperature in August reaches a warm 29°C (84°F). Expect minimums around 20°C (68°F) and maximums soaring to 42°C (107°F). Rainfall is notable, with an average precipitation of 197 mm (7.8 in) occurring over 15 days. Additionally, the air is quite humid, with an average humidity of 90%, making for a truly tropical experience!

August Temperature in Iwata

In August in Iwata, the average temperature is 29°C (84°F). Maximums can reach 42°C (107°F), and minimums can be as low as 20°C (68°F). Travelers should be prepared for hot weather and plan activities accordingly to stay comfortable.

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

The chart illustrates August temperature patterns in Iwata, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iwata, August typically has an average temperature of 29°C (84°F), with highs reaching up to 42°C (107°F) and lows dropping to around 20°C (68°F).

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

August Precipitation in Iwata

In Iwata in August, the total precipitation amount is 197 mm (7.8 in) over a span of 15 days.

August Precipitation Trends in Iwata

The chart displays monthly precipitation patterns in Iwata, 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 Iwata, August typically receives around 197 mm (7.8 inches) of precipitation spread over approximately 15 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 Iwata

In Iwata in August, humidity is 90%. With an average temperature of 29°C (84°F), this humidity feels like a warm, thick blanket wrapping around you, making traveling a challenge as you find yourself constantly sweating and seeking shade.

August Average Humidity in Iwata

This chart illustrates the average monthly humidity levels in Iwata, 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 Iwata is approximately 90%, 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 Iwata

In Iwata 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 Iwata.

Maximum UV Index Levels in Iwata for August

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

Data source: Iwata 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 Iwata Compares to Other Months

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

This table compares monthly weather conditions in Iwata, 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 (44°F)	51 mm (2.0 inches)	76%	moderate
February Weather	7°C (46°F)	76 mm (3.0 inches)	74%	moderate
March Weather	12°C (53°F)	166 mm (6.5 inches)	70%	very high
April Weather	15°C (60°F)	172 mm (6.8 inches)	74%	very high
May Weather	20°C (68°F)	198 mm (7.8 inches)	81%	extreme
June Weather	23°C (74°F)	261 mm (10.3 inches)	88%	extreme
July Weather	27°C (81°F)	408 mm (16.1 inches)	93%	extreme
August Weather	29°C (84°F)	197 mm (7.8 inches)	90%	extreme
September Weather	25°C (77°F)	222 mm (8.7 inches)	86%	very high
October Weather	20°C (68°F)	293 mm (11.5 inches)	83%	high
November Weather	15°C (58°F)	83 mm (3.3 inches)	80%	moderate
December Weather	9°C (49°F)	67 mm (2.6 inches)	78%	moderate