August Weather in Hekinan, Japan

Last updated: August 23, 2025

In Hekinan, Japan, the average temperature in August typically hovers around 29°C (85°F). Daily temperatures can range from a comfortable 21°C (70°F) to a sizzling 37°C (99°F). Be prepared for some rainfall, as you can expect approximately 168 mm (6.6 in) of precipitation over 13 days. With an average humidity level of 91%, the air can feel quite muggy, making it ideal to pack light and breathable clothing for your visit!

August Temperature in Hekinan

In August in Hekinan, the average temperature is 29°C (85°F). Maximums can reach 37°C (99°F) and minimums can be as low as 21°C (70°F). It's a perfect time for travelers to enjoy warm weather and outdoor activities while staying hydrated.

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

The chart illustrates August temperature patterns in Hekinan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hekinan, August typically has an average temperature of 29°C (85°F), with highs reaching up to 37°C (99°F) and lows dropping to around 21°C (70°F).

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

August Precipitation in Hekinan

In Hekinan in August, the total precipitation amount is 168 mm (6.6 in) over the course of 13 days.

August Precipitation Trends in Hekinan

The chart displays monthly precipitation patterns in Hekinan, 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 Hekinan, August typically receives around 168 mm (6.6 inches) of precipitation spread over approximately 13 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 Hekinan

In Hekinan in August humidity is 91%. With an average temperature of 29°C (85°F), this humidity feels like stepping into a warm, heavy blanket, making travel uncomfortable and leaving you drenched in sweat within moments of stepping outside.

August Average Humidity in Hekinan

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

In Hekinan 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 Hekinan.

Maximum UV Index Levels in Hekinan for August

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

Data source: Hekinan 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 Hekinan Compares to Other Months

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

This table compares monthly weather conditions in Hekinan, 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 (43°F)	43 mm (1.7 inches)	82%	moderate
February Weather	7°C (44°F)	54 mm (2.1 inches)	79%	high
March Weather	11°C (52°F)	130 mm (5.1 inches)	74%	very high
April Weather	15°C (60°F)	132 mm (5.2 inches)	76%	very high
May Weather	20°C (68°F)	170 mm (6.7 inches)	83%	extreme
June Weather	24°C (75°F)	150 mm (5.9 inches)	87%	extreme
July Weather	27°C (81°F)	308 mm (12.1 inches)	93%	extreme
August Weather	29°C (85°F)	168 mm (6.6 inches)	91%	extreme
September Weather	25°C (78°F)	161 mm (6.3 inches)	87%	very high
October Weather	20°C (68°F)	234 mm (9.2 inches)	85%	high
November Weather	13°C (57°F)	55 mm (2.2 inches)	83%	moderate
December Weather	8°C (47°F)	51 mm (2.0 inches)	83%	moderate