April Weather in Hekinan, Japan

Last updated: August 23, 2025

In April, the average temperature in Hekinan, Japan is a pleasant 15°C (60°F). Expect a range, with minimums dipping to 1°C (34°F) and maximums reaching 28°C (83°F). Be prepared for some rain, as precipitation totals around 132 mm (5.2 in) over approximately 9 days. Don’t forget to account for the average humidity at a comfortable 76%!

April Temperature in Hekinan

In April in Hekinan, the average temperature is 15°C (60°F). Maximum temperatures can reach 28°C (83°F), while minimums can drop as low as 1°C (34°F). It's a perfect time for travelers to enjoy the mild climate, so pack accordingly and be prepared for both warm and cooler days.

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

The chart illustrates April 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, April typically has an average temperature of 15°C (60°F), with highs reaching up to 28°C (83°F) and lows dropping to around 1°C (34°F).

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

April Precipitation in Hekinan

In Hekinan in April, the total precipitation amount is 132 mm (5.2 in) over a span of 9 days.

April Precipitation Trends in Hekinan

The chart displays monthly precipitation patterns in Hekinan, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Hekinan, April typically receives around 132 mm (5.2 inches) of precipitation spread over approximately 9 days.

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

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Millimeters (mm) Inches (in)

April Humidity in Hekinan

In Hekinan in April humidity is 76%. With an average temperature of 15°C (60°F), this humidity feels like a warm, damp blanket wrapping around you, making outdoor activities a bit more challenging and urging you to stay hydrated while exploring the area.

April Average Humidity in Hekinan

This chart illustrates the average monthly humidity levels in Hekinan, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Hekinan is approximately 76%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Hekinan

In Hekinan in April, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Hekinan.

Maximum UV Index Levels in Hekinan for April

The chart shows the monthly maximum UV Index (UVI) for Hekinan in April, 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 April, the maximum UV index in Hekinan typically reaches 10, which falls under the very high exposure category.

Data source: Hekinan April 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 April 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 April’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 April’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