April Weather in Shiso, Japan

Last updated: August 23, 2025

In April, the average temperature in Shiso, Japan hovers around 13°C (56°F), with fluctuations that can dip as low as -1°C (31°F) and peak at 25°C (78°F). Expect around 135 mm (5.3 in) of precipitation spread over approximately 10 days, while the average humidity lingers at a comfortable 74%.

April Temperature in Shiso

In April in Shiso, the average temperature is 13°C (56°F). The maximum can reach 25°C (78°F), while the minimum can drop to as low as -1°C (31°F). It's advisable to pack layers and prepare for variable weather conditions during your travels.

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

The chart illustrates April temperature patterns in Shiso, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shiso, April typically has an average temperature of 13°C (56°F), with highs reaching up to 25°C (78°F) and lows dropping to around -1°C (31°F).

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

April Precipitation in Shiso

In Shiso in April, the total precipitation amount is 135 mm (5.3 in) recorded over a span of 10 days.

April Precipitation Trends in Shiso

The chart displays monthly precipitation patterns in Shiso, 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 Shiso, April typically receives around 135 mm (5.3 inches) of precipitation spread over approximately 10 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 Shiso

In Shiso in April humidity is 74%. With an average temperature of 13°C (56°F), this humidity feels like a damp chill that can make outdoor activities uncomfortable, especially for travelers unaccustomed to such conditions.

April Average Humidity in Shiso

This chart illustrates the average monthly humidity levels in Shiso, 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 Shiso is approximately 74%, 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 Shiso

In Shiso in April, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Shiso.

Maximum UV Index Levels in Shiso for April

The chart shows the monthly maximum UV Index (UVI) for Shiso 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 Shiso typically reaches 11, which falls under the extreme exposure category.

Data source: Shiso 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 Shiso Compares to Other Months

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

This table compares monthly weather conditions in Shiso, 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 (40°F)	42 mm (1.7 inches)	82%	moderate
February Weather	5°C (41°F)	56 mm (2.2 inches)	79%	high
March Weather	9°C (48°F)	116 mm (4.6 inches)	73%	very high
April Weather	13°C (56°F)	135 mm (5.3 inches)	74%	extreme
May Weather	18°C (65°F)	127 mm (5.0 inches)	84%	extreme
June Weather	22°C (71°F)	170 mm (6.7 inches)	86%	extreme
July Weather	26°C (79°F)	326 mm (12.8 inches)	92%	extreme
August Weather	27°C (82°F)	241 mm (9.5 inches)	92%	extreme
September Weather	23°C (74°F)	237 mm (9.3 inches)	87%	very high
October Weather	18°C (64°F)	205 mm (8.1 inches)	85%	high
November Weather	12°C (53°F)	38 mm (1.5 inches)	84%	moderate
December Weather	6°C (44°F)	58 mm (2.3 inches)	82%	moderate