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April Weather in Kobayashi, Japan

Last updated: August 23, 2025

In Kobayashi, Japan, the average temperature in April hovers around 15°C (59°F). Expect a range from a chilly -1°C (30°F) to a warm 27°C (82°F). During this month, you can anticipate about 150 mm (5.9 in) of precipitation across 10 days, with an average humidity of 79%. Perfect for cozy days indoors or spontaneous adventures in the rain!

April Temperature in Kobayashi

In April in Kobayashi, the average temperature is 15°C (59°F). Maximums can reach 27°C (82°F) and minimums can dip as low as -1°C (30°F). Pack accordingly to enjoy a comfortable trip, with layers for both warm afternoons and chilly evenings.

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

The chart illustrates April temperature patterns in Kobayashi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kobayashi, April typically has an average temperature of 15°C (59°F), with highs reaching up to 27°C (82°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec414351586671788074655443
Data source: Temperature data for Kobayashi 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 Kobayashi

In Kobayashi in April, the precipitation amount reaches 150 mm (5.9 in) over the course of 10 days.

April Precipitation Trends in Kobayashi

The chart displays monthly precipitation patterns in Kobayashi, 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 Kobayashi, April typically receives around 150 mm (5.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec551021741502363494092252681709078
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Kobayashi

In Kobayashi in April humidity is 79%. With an average temperature of 15°C (59°F), this humidity feels like a muggy embrace that clings to your skin, making outdoor activities somewhat uncomfortable. Travelers may find themselves frequently seeking shelter or refreshing drinks to combat the warm, damp air, as the moisture in the atmosphere feels particularly heavy, especially during longer excursions.

April Average Humidity in Kobayashi

This chart illustrates the average monthly humidity levels in Kobayashi, 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 Kobayashi 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 Kobayashi

In Kobayashi 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 Kobayashi.

Maximum UV Index Levels in Kobayashi for April

The chart shows the monthly maximum UV Index (UVI) for Kobayashi 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 Kobayashi typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec5610101212121211864
Data source: Kobayashi 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 Kobayashi Compares to Other Months

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

This table compares monthly weather conditions in Kobayashi, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)55 mm (2.2 inches)72%moderate
February Weather6°C (43°F)101 mm (4.0 inches)68%high
March Weather11°C (51°F)174 mm (6.9 inches)72%very high
April Weather15°C (59°F)150 mm (5.9 inches)79%very high
May Weather19°C (66°F)236 mm (9.3 inches)83%extreme
June Weather22°C (71°F)349 mm (13.7 inches)86%extreme
July Weather25°C (78°F)409 mm (16.1 inches)90%extreme
August Weather26°C (80°F)225 mm (8.9 inches)85%extreme
September Weather23°C (75°F)268 mm (10.5 inches)80%extreme
October Weather18°C (65°F)170 mm (6.7 inches)78%very high
November Weather12°C (54°F)90 mm (3.5 inches)76%high
December Weather6°C (44°F)78 mm (3.1 inches)74%moderate

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