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April Weather in Oga, Japan

Last updated: August 23, 2025

In April, the average temperature in Oga, Japan hovers around 9°C (49°F). The climate can bring a chill, with minimum temperatures dipping to 3°C (37°F), while highs can reach up to 16°C (60°F). Expect some wet days, as 129 mm (5.1 in) of precipitation is spread across approximately 15 days. The air remains quite humid, averaging around 78%, setting the scene for a brisk and refreshing experience.

April Temperature in Oga

In April in Oga, the average temperature is 9°C (49°F). The maximum can reach 16°C (60°F), and the minimum can be as low as 3°C (37°F). It's a cool month, so be sure to pack layers to stay comfortable while exploring.

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

The chart illustrates April temperature patterns in Oga, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oga, April typically has an average temperature of 9°C (49°F), with highs reaching up to 16°C (60°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec373743495865747772635342
Data source: Temperature data for Oga 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 Oga

In Oga in April, the precipitation amount is 129 mm (5.1 in) over a span of 15 days.

April Precipitation Trends in Oga

The chart displays monthly precipitation patterns in Oga, 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 Oga, April typically receives around 129 mm (5.1 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec148159116129133146161199165218194257
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Oga

In Oga in April, humidity is 78%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that clings to your skin, making it essential to dress in layers while traveling, as the cool air combines with the moisture to create a brisk and invigorating atmosphere.

April Average Humidity in Oga

This chart illustrates the average monthly humidity levels in Oga, 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 Oga is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%78%76%78%86%90%93%92%84%80%76%78%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Oga

In Oga 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 Oga.

Maximum UV Index Levels in Oga for April

The chart shows the monthly maximum UV Index (UVI) for Oga 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 Oga typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec336891010119642
Data source: Oga 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 Oga Compares to Other Months

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

This table compares monthly weather conditions in Oga, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)148 mm (5.8 inches)79%moderate
February Weather3°C (37°F)159 mm (6.3 inches)78%moderate
March Weather6°C (43°F)116 mm (4.6 inches)76%high
April Weather9°C (49°F)129 mm (5.1 inches)78%very high
May Weather14°C (58°F)133 mm (5.2 inches)86%very high
June Weather18°C (65°F)146 mm (5.8 inches)90%very high
July Weather23°C (74°F)160 mm (6.3 inches)93%very high
August Weather25°C (78°F)199 mm (7.8 inches)92%extreme
September Weather22°C (72°F)165 mm (6.5 inches)84%very high
October Weather17°C (63°F)218 mm (8.6 inches)80%high
November Weather11°C (53°F)194 mm (7.6 inches)76%moderate
December Weather6°C (42°F)256 mm (10.1 inches)78%low

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