April Weather in Nagaoka, Japan

Last updated: August 23, 2025

In April, the average temperature in Nagaoka, Japan is a comfortable 13°C (56°F). However, temperatures can vary significantly, with a minimum of 0°C (33°F) and a maximum reaching up to 26°C (80°F). Expect 157 mm (6.2 in) of precipitation spread across 11 days, contributing to an average humidity of 76%. Be prepared for a mix of weather as you enjoy your time in this beautiful location!

April Temperature in Nagaoka

In April in Nagaoka, the average temperature is 13°C (56°F). The maximum can reach 26°C (80°F), while the minimum can be as low as 0°C (33°F). It's advisable to pack layers and prepare for both warm days and cooler nights while traveling.

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

The chart illustrates April temperature patterns in Nagaoka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nagaoka, April typically has an average temperature of 13°C (56°F), with highs reaching up to 26°C (80°F) and lows dropping to around 0°C (33°F).

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

April Precipitation in Nagaoka

In Nagaoka in April, the precipitation amount is 157 mm (6.2 in) over a span of 11 days.

April Precipitation Trends in Nagaoka

The chart displays monthly precipitation patterns in Nagaoka, 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 Nagaoka, April typically receives around 157 mm (6.2 inches) of precipitation spread over approximately 11 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 Nagaoka

In Nagaoka in April humidity is 76%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket enveloping you, making travel a bit uncomfortable as you navigate through the heavy, moisture-laden air.

April Average Humidity in Nagaoka

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

In Nagaoka 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 Nagaoka.

Maximum UV Index Levels in Nagaoka for April

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

Data source: Nagaoka 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 Nagaoka Compares to Other Months

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

This table compares monthly weather conditions in Nagaoka, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	56 mm (2.2 inches)	82%	moderate
February Weather	4°C (40°F)	62 mm (2.5 inches)	79%	high
March Weather	9°C (48°F)	125 mm (4.9 inches)	74%	very high
April Weather	13°C (56°F)	157 mm (6.2 inches)	76%	very high
May Weather	18°C (66°F)	154 mm (6.1 inches)	83%	extreme
June Weather	22°C (72°F)	161 mm (6.3 inches)	87%	extreme
July Weather	26°C (79°F)	324 mm (12.7 inches)	93%	extreme
August Weather	28°C (82°F)	228 mm (9.0 inches)	91%	extreme
September Weather	23°C (75°F)	172 mm (6.8 inches)	87%	very high
October Weather	18°C (64°F)	246 mm (9.7 inches)	85%	high
November Weather	12°C (53°F)	47 mm (1.8 inches)	83%	moderate
December Weather	6°C (43°F)	66 mm (2.6 inches)	83%	moderate