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April Weather in Koseda, Japan

Last updated: August 23, 2025

In April, the average temperature in Koseda, Japan is a pleasant 18°C (66°F). You can expect temperatures to range from a cool 12°C (54°F) to a warm 24°C (75°F). However, be prepared for some rain, as precipitation averages 172 mm (6.8 in) over 11 days throughout the month. The air tends to be quite humid, with an average humidity level of 79%.

April Temperature in Koseda

In April, in Koseda, the average temperature is 18°C (66°F). Maximum temperatures can reach 24°C (75°F), while the minimum can drop to as low as 12°C (54°F). This mild climate makes Koseda an ideal destination for travelers looking to enjoy comfortable weather while exploring the area.

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

The chart illustrates April temperature patterns in Koseda, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Koseda, April typically has an average temperature of 18°C (66°F), with highs reaching up to 24°C (75°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec565661657175818280746759
Data source: Temperature data for Koseda 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 Koseda

In Koseda in April, the precipitation amount is 172 mm (6.8 in) spread over 11 days.

April Precipitation Trends in Koseda

The chart displays monthly precipitation patterns in Koseda, 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 Koseda, April typically receives around 172 mm (6.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec102151201172251469250200281173153132
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Koseda

In Koseda in April, humidity is 79%. With an average temperature of 18°C (66°F), this humidity feels like a warm, enveloping blanket, making outdoor activities slightly uncomfortable and sticky, but also offering a vibrant atmosphere perfect for exploring local cafes and shaded parks.

April Average Humidity in Koseda

This chart illustrates the average monthly humidity levels in Koseda, 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 Koseda is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%68%72%79%83%86%90%85%80%78%76%75%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Koseda

In Koseda 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 Koseda.

Maximum UV Index Levels in Koseda for April

The chart shows the monthly maximum UV Index (UVI) for Koseda 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 Koseda typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec5710111212131311875
Data source: Koseda 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 Koseda Compares to Other Months

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

This table compares monthly weather conditions in Koseda, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (56°F)102 mm (4.0 inches)72%moderate
February Weather13°C (56°F)151 mm (6.0 inches)68%high
March Weather16°C (61°F)201 mm (7.9 inches)72%very high
April Weather18°C (66°F)172 mm (6.8 inches)79%extreme
May Weather21°C (71°F)251 mm (9.9 inches)83%extreme
June Weather24°C (75°F)469 mm (18.5 inches)86%extreme
July Weather27°C (81°F)250 mm (9.8 inches)90%extreme
August Weather28°C (82°F)200 mm (7.9 inches)85%extreme
September Weather27°C (80°F)281 mm (11.1 inches)80%extreme
October Weather23°C (75°F)173 mm (6.8 inches)78%very high
November Weather19°C (67°F)153 mm (6.0 inches)76%high
December Weather15°C (60°F)132 mm (5.2 inches)74%moderate

Compare Koseda's Climate with Cities Worldwide