April Weather in Shimizu, Japan

Last updated: August 23, 2025

In April, the average temperature in Shimizu, Japan hovers around 5°C (42°F). Residents can expect a range with minimum temperatures dipping to -7°C (21°F) and peaking at a cozy 22°C (72°F). With an average humidity of 83%, it feels quite damp, and visitors should prepare for approximately 89 mm (3.5 in) of precipitation spread across 13 days.

April Temperature in Shimizu

In April in Shimizu, the average temperature is 5°C (42°F). Maximums can reach 22°C (72°F), and minimums can be as low as -7°C (21°F). It's a good idea to pack layers and prepare for varying weather conditions during your visit.

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

The chart illustrates April temperature patterns in Shimizu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shimizu, April typically has an average temperature of 5°C (42°F), with highs reaching up to 22°C (72°F) and lows dropping to around -7°C (21°F).

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

April Precipitation in Shimizu

In Shimizu in April, the precipitation amount is 89 mm (3.5 in) distributed over 13 days.

April Precipitation Trends in Shimizu

The chart displays monthly precipitation patterns in Shimizu, 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 Shimizu, April typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 13 days.

Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

April Humidity in Shimizu

In Shimizu in April, humidity is 83%. With an average temperature of 5°C (42°F), this humidity feels like a heavy blanket wrapping around you, making even the simplest outdoor activities feel exhausting and uncomfortable for traveling.

April Average Humidity in Shimizu

This chart illustrates the average monthly humidity levels in Shimizu, 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 Shimizu is approximately 83%, 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 Shimizu

In Shimizu in April, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Shimizu.

Maximum UV Index Levels in Shimizu for April

The chart shows the monthly maximum UV Index (UVI) for Shimizu 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 Shimizu typically reaches 8, which falls under the very high exposure category.

Data source: Shimizu 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 Shimizu Compares to Other Months

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

This table compares monthly weather conditions in Shimizu, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (17°F)	50 mm (2.0 inches)	84%	low
February Weather	-7°C (19°F)	54 mm (2.1 inches)	83%	moderate
March Weather	-1°C (31°F)	89 mm (3.5 inches)	83%	high
April Weather	5°C (42°F)	89 mm (3.5 inches)	83%	very high
May Weather	12°C (53°F)	86 mm (3.4 inches)	86%	very high
June Weather	15°C (59°F)	109 mm (4.3 inches)	88%	very high
July Weather	19°C (66°F)	98 mm (3.8 inches)	93%	very high
August Weather	19°C (66°F)	171 mm (6.7 inches)	96%	very high
September Weather	16°C (61°F)	127 mm (5.0 inches)	89%	very high
October Weather	10°C (49°F)	152 mm (6.0 inches)	83%	high
November Weather	3°C (37°F)	89 mm (3.5 inches)	80%	moderate
December Weather	-5°C (24°F)	58 mm (2.3 inches)	79%	low