April Weather in Shiraoi, Japan

Last updated: August 23, 2025

In Shiraoi, Japan, the average temperature in April hovers around 5°C (42°F), with a minimum of -3°C (27°F) and a maximum reaching 15°C (60°F). Expect 96 mm (3.8 in) of precipitation spread over about 13 days, contributing to an average humidity level of 81%. Prepare for a month of cool, damp weather!

April Temperature in Shiraoi

In April in Shiraoi, the average temperature is 5°C (42°F), with maximums reaching 15°C (60°F) and minimums dropping as low as -3°C (27°F). Travelers should be prepared for cool weather and significant temperature fluctuations when visiting during this time.

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

The chart illustrates April temperature patterns in Shiraoi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shiraoi, April typically has an average temperature of 5°C (42°F), with highs reaching up to 15°C (60°F) and lows dropping to around -3°C (27°F).

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

April Precipitation in Shiraoi

In Shiraoi in April, the precipitation amount is 96 mm (3.8 in) spread over 13 days, indicating a relatively rainy period.

April Precipitation Trends in Shiraoi

The chart displays monthly precipitation patterns in Shiraoi, 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 Shiraoi, April typically receives around 96 mm (3.8 inches) of precipitation spread over approximately 13 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 Shiraoi

In Shiraoi in April, humidity is 81%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures feel more daunting and travel less invigorating.

April Average Humidity in Shiraoi

This chart illustrates the average monthly humidity levels in Shiraoi, 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 Shiraoi is approximately 81%, 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 Shiraoi

In Shiraoi in April, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Shiraoi.

Maximum UV Index Levels in Shiraoi for April

The chart shows the monthly maximum UV Index (UVI) for Shiraoi 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 Shiraoi typically reaches 7, which falls under the high exposure category.

Data source: Shiraoi 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 Shiraoi Compares to Other Months

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

This table compares monthly weather conditions in Shiraoi, 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 (26°F)	58 mm (2.3 inches)	84%	low
February Weather	-3°C (26°F)	53 mm (2.1 inches)	83%	moderate
March Weather	1°C (34°F)	88 mm (3.5 inches)	81%	moderate
April Weather	5°C (42°F)	96 mm (3.8 inches)	81%	high
May Weather	10°C (51°F)	92 mm (3.6 inches)	86%	very high
June Weather	14°C (58°F)	131 mm (5.2 inches)	87%	very high
July Weather	18°C (66°F)	113 mm (4.4 inches)	93%	very high
August Weather	20°C (68°F)	194 mm (7.6 inches)	95%	very high
September Weather	18°C (64°F)	142 mm (5.6 inches)	88%	very high
October Weather	12°C (54°F)	140 mm (5.5 inches)	83%	high
November Weather	6°C (43°F)	107 mm (4.2 inches)	79%	moderate
December Weather	-1°C (30°F)	64 mm (2.5 inches)	80%	low