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April Weather in Okegawa, Japan

Last updated: August 23, 2025

In April, the average temperature in Okegawa, Japan hovers around 14°C (58°F). Expect minimum temperatures to dip to 1°C (33°F) and highs reaching up to 29°C (84°F). Be prepared for a touch of rain, with an average precipitation of 110 mm (4.3 in) over 10 days. With an average humidity of 74%, it’s a month of refreshing breezes and occasional showers.

April Temperature in Okegawa

In April in Okegawa, the average temperature is 14°C (58°F), with maximums reaching up to 29°C (84°F) and minimums dropping as low as 1°C (33°F). It's advisable to pack layers to comfortably enjoy the varied weather during your travels.

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

The chart illustrates April temperature patterns in Okegawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Okegawa, April typically has an average temperature of 14°C (58°F), with highs reaching up to 29°C (84°F) and lows dropping to around 1°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec404350586773798375655545
Data source: Temperature data for Okegawa 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 Okegawa

In Okegawa in April, the precipitation amount is 110 mm (4.3 in) over a period of 10 days.

April Precipitation Trends in Okegawa

The chart displays monthly precipitation patterns in Okegawa, 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 Okegawa, April typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec41401201101101492401191852585442
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Okegawa

In Okegawa 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 Okegawa

This chart illustrates the average monthly humidity levels in Okegawa, 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 Okegawa is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%74%70%74%82%88%93%90%86%83%80%78%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Okegawa

In Okegawa 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 Okegawa.

Maximum UV Index Levels in Okegawa for April

The chart shows the monthly maximum UV Index (UVI) for Okegawa 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 Okegawa typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3589101011109753
Data source: Okegawa 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 Okegawa Compares to Other Months

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

This table compares monthly weather conditions in Okegawa, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (40°F)41 mm (1.6 inches)76%moderate
February Weather6°C (43°F)40 mm (1.6 inches)74%moderate
March Weather10°C (50°F)120 mm (4.7 inches)70%very high
April Weather14°C (58°F)110 mm (4.3 inches)74%very high
May Weather20°C (68°F)110 mm (4.3 inches)81%very high
June Weather23°C (73°F)149 mm (5.9 inches)88%very high
July Weather26°C (80°F)240 mm (9.5 inches)93%extreme
August Weather28°C (83°F)119 mm (4.7 inches)90%very high
September Weather24°C (75°F)185 mm (7.3 inches)86%very high
October Weather18°C (65°F)258 mm (10.2 inches)83%high
November Weather13°C (55°F)54 mm (2.1 inches)80%moderate
December Weather7°C (45°F)42 mm (1.6 inches)78%moderate

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