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April Weather in Innoshima, Japan

Last updated: August 23, 2025

In Innoshima, Japan, the average temperature in April hovers around 14°C (58°F). Expect a cool low of 6°C (43°F) at night, while daytime can warm up to a comfortable 23°C (73°F). During this month, anticipate 122 mm (4.8 in) of precipitation spread over 8 days, contributing to an average humidity level of 74%. It's the perfect time to explore the beauty of the season!

April Temperature in Innoshima

In April in Innoshima, the average temperature is 14°C (58°F). The maximum can reach 23°C (73°F) and the minimum can be as low as 6°C (43°F). This pleasant climate makes Innoshima an ideal destination for travelers looking to enjoy mild weather and outdoor activities.

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

The chart illustrates April temperature patterns in Innoshima, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Innoshima, April typically has an average temperature of 14°C (58°F), with highs reaching up to 23°C (73°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec454551586672808377685949
Data source: Temperature data for Innoshima generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Innoshima

In Innoshima in April, the precipitation amount is 122 mm (4.8 in) spread over 8 days.

April Precipitation Trends in Innoshima

The chart displays monthly precipitation patterns in Innoshima, 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 Innoshima, April typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec54671051221161512851331772015064
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Innoshima

In Innoshima in April humidity is 74%. With an average temperature of 14°C (58°F), this humidity feels like a thick blanket wrapping around you, making outdoor activities slightly uncomfortable and prompting travelers to seek shade or indoor venues more often.

April Average Humidity in Innoshima

This chart illustrates the average monthly humidity levels in Innoshima, 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 Innoshima is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%73%74%84%86%92%92%87%85%84%82%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Innoshima

In Innoshima 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 Innoshima.

Maximum UV Index Levels in Innoshima for April

The chart shows the monthly maximum UV Index (UVI) for Innoshima 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 Innoshima typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458101111121210764
Data source: Innoshima 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 Innoshima Compares to Other Months

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

This table compares monthly weather conditions in Innoshima, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)54 mm (2.1 inches)82%moderate
February Weather7°C (45°F)67 mm (2.6 inches)79%moderate
March Weather11°C (51°F)105 mm (4.1 inches)73%very high
April Weather14°C (58°F)122 mm (4.8 inches)74%very high
May Weather19°C (66°F)116 mm (4.6 inches)84%extreme
June Weather22°C (73°F)151 mm (5.9 inches)86%extreme
July Weather26°C (80°F)285 mm (11.2 inches)92%extreme
August Weather29°C (84°F)133 mm (5.2 inches)92%extreme
September Weather25°C (78°F)177 mm (7.0 inches)87%very high
October Weather20°C (69°F)201 mm (7.9 inches)85%high
November Weather15°C (59°F)50 mm (2.0 inches)84%high
December Weather10°C (50°F)64 mm (2.5 inches)82%moderate

Compare Innoshima's Climate with Cities Worldwide