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April Weather in Otsuki, Japan

Last updated: August 23, 2025

In April, the average temperature in Otsuki, Japan hovers around 11°C (52°F). While the mercury can dip to a chilly -2°C (29°F), it might also reach a warm 26°C (79°F). Visitors should prepare for precipitation totaling 164 mm (6.5 in) over approximately 14 days, with an average humidity of 74%—perfect for cozy days indoors or exploration with an umbrella!

April Temperature in Otsuki

In April in Otsuki, the average temperature is 11°C (52°F). Maximums can reach 26°C (79°F), while minimums can drop as low as -2°C (29°F). This makes it essential for travelers to pack layers to stay comfortable throughout the day.

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

The chart illustrates April temperature patterns in Otsuki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Otsuki, April typically has an average temperature of 11°C (52°F), with highs reaching up to 26°C (79°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec363744526166737769595040
Data source: Temperature data for Otsuki 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 Otsuki

In Otsuki in April, the precipitation amount is 164 mm (6.5 in) spread over 14 days.

April Precipitation Trends in Otsuki

The chart displays monthly precipitation patterns in Otsuki, 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 Otsuki, April typically receives around 164 mm (6.5 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec59731821651642163051722383648469
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Otsuki

In Otsuki in April, humidity is 74%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill in the air, making travel outdoors feel heavier and more cumbersome, often leading to discomfort and a need for warmer clothing.

April Average Humidity in Otsuki

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

In Otsuki 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 Otsuki.

Maximum UV Index Levels in Otsuki for April

The chart shows the monthly maximum UV Index (UVI) for Otsuki 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 Otsuki typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121110754
Data source: Otsuki 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 Otsuki Compares to Other Months

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

This table compares monthly weather conditions in Otsuki, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)59 mm (2.3 inches)76%moderate
February Weather3°C (38°F)72 mm (2.9 inches)74%high
March Weather7°C (45°F)182 mm (7.2 inches)70%very high
April Weather11°C (52°F)164 mm (6.5 inches)74%very high
May Weather16°C (61°F)164 mm (6.5 inches)81%extreme
June Weather19°C (66°F)216 mm (8.5 inches)88%extreme
July Weather23°C (74°F)305 mm (12.0 inches)93%extreme
August Weather25°C (77°F)172 mm (6.8 inches)90%extreme
September Weather20°C (69°F)238 mm (9.4 inches)86%very high
October Weather15°C (59°F)364 mm (14.3 inches)83%high
November Weather10°C (50°F)84 mm (3.3 inches)80%moderate
December Weather4°C (40°F)68 mm (2.7 inches)78%moderate

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