April Weather in Shiozawa, Japan

Last updated: August 23, 2025

In April, the average temperature in Shiozawa, Japan hovers around 8°C (46°F), with a range that can dip to a chilly -7°C (20°F) or soar up to a warm 26°C (79°F). Expect a relatively wet month, with 167 mm (6.6 in) of precipitation over about 18 days. The air tends to feel quite humid, with an average humidity level of 78%, so don’t forget your umbrella!

April Temperature in Shiozawa

In April in Shiozawa, the average temperature is 8°C (46°F). The maximum can reach 26°C (79°F) and the minimum can be as low as -7°C (20°F). This wide temperature range suggests that travelers should pack both warm and light clothing to prepare for varying weather conditions.

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

The chart illustrates April temperature patterns in Shiozawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shiozawa, April typically has an average temperature of 8°C (46°F), with highs reaching up to 26°C (79°F) and lows dropping to around -7°C (20°F).

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

April Precipitation in Shiozawa

In Shiozawa in April, the total precipitation amount is 167 mm (6.6 in) spread over 18 days.

April Precipitation Trends in Shiozawa

The chart displays monthly precipitation patterns in Shiozawa, 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 Shiozawa, April typically receives around 167 mm (6.6 inches) of precipitation spread over approximately 18 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 Shiozawa

In Shiozawa 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 Shiozawa

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

In Shiozawa 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 Shiozawa.

Maximum UV Index Levels in Shiozawa for April

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

Data source: Shiozawa 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 Shiozawa Compares to Other Months

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

This table compares monthly weather conditions in Shiozawa, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (28°F)	199 mm (7.8 inches)	88%	moderate
February Weather	-2°C (29°F)	185 mm (7.3 inches)	86%	moderate
March Weather	3°C (37°F)	174 mm (6.9 inches)	81%	very high
April Weather	8°C (46°F)	167 mm (6.6 inches)	78%	very high
May Weather	15°C (58°F)	181 mm (7.1 inches)	81%	very high
June Weather	18°C (64°F)	201 mm (7.9 inches)	88%	extreme
July Weather	22°C (73°F)	376 mm (14.8 inches)	92%	extreme
August Weather	24°C (75°F)	238 mm (9.4 inches)	92%	extreme
September Weather	19°C (67°F)	223 mm (8.8 inches)	89%	very high
October Weather	13°C (56°F)	256 mm (10.1 inches)	87%	high
November Weather	6°C (44°F)	145 mm (5.7 inches)	85%	moderate
December Weather	0°C (32°F)	226 mm (8.9 inches)	86%	moderate