April Weather in Nagai, Japan

Last updated: August 23, 2025

In April, the average temperature in Nagai, Japan hovers around 8°C (46°F). Expect a chilly minimum of -6°C (22°F), while the mercury can rise as high as 24°C (75°F). Be prepared for some rain, as you'll encounter about 138 mm (5.4 in) of precipitation over 16 days. Don't forget your umbrella, as the average humidity sits at a noteworthy 78%!

April Temperature in Nagai

In April in Nagai, the average temperature is 8°C (46°F). The maximum can reach 24°C (75°F) and the minimum can be as low as -6°C (22°F). Be prepared for a mix of mild and chilly weather, so pack accordingly for your travels!

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

The chart illustrates April temperature patterns in Nagai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nagai, April typically has an average temperature of 8°C (46°F), with highs reaching up to 24°C (75°F) and lows dropping to around -6°C (22°F).

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

April Precipitation in Nagai

In Nagai in April, the precipitation amount is 138 mm (5.4 in), falling over a span of 16 days.

April Precipitation Trends in Nagai

The chart displays monthly precipitation patterns in Nagai, 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 Nagai, April typically receives around 138 mm (5.4 inches) of precipitation spread over approximately 16 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 Nagai

In Nagai in April, humidity is 78%. With an average temperature of 8°C (46°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor activities a bit uncomfortable and prompting you to dress in layers to stay warm while exploring.

April Average Humidity in Nagai

This chart illustrates the average monthly humidity levels in Nagai, 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 Nagai is approximately 78%, 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 Nagai

In Nagai in April, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Nagai.

Maximum UV Index Levels in Nagai for April

The chart shows the monthly maximum UV Index (UVI) for Nagai 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 Nagai typically reaches 9, which falls under the very high exposure category.

Data source: Nagai 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 Nagai Compares to Other Months

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

This table compares monthly weather conditions in Nagai, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (28°F)	169 mm (6.6 inches)	88%	moderate
February Weather	-2°C (29°F)	167 mm (6.6 inches)	86%	moderate
March Weather	2°C (36°F)	153 mm (6.0 inches)	81%	very high
April Weather	8°C (46°F)	138 mm (5.4 inches)	78%	very high
May Weather	14°C (58°F)	120 mm (4.7 inches)	81%	very high
June Weather	18°C (64°F)	135 mm (5.3 inches)	88%	extreme
July Weather	22°C (72°F)	298 mm (11.7 inches)	92%	extreme
August Weather	23°C (74°F)	221 mm (8.7 inches)	92%	extreme
September Weather	19°C (66°F)	140 mm (5.5 inches)	89%	very high
October Weather	13°C (55°F)	164 mm (6.5 inches)	87%	high
November Weather	7°C (44°F)	118 mm (4.7 inches)	85%	moderate
December Weather	0°C (33°F)	203 mm (8.0 inches)	86%	moderate