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April Weather in Unnan, Japan

Last updated: August 23, 2025

In April, the average temperature in Unnan, Japan is 13°C (55°F). Expect minimum temperatures to dip as low as -1°C (30°F) and highs reaching up to 28°C (82°F). During this time, the area receives an average of 125 mm (4.9 in) of precipitation over 11 rainy days, contributing to an average humidity level of 74%.

April Temperature in Unnan

In April in Unnan, the average temperature is 13°C (55°F). Maximum temperatures can reach 28°C (82°F), while the minimum can drop as low as -1°C (30°F). This weather variation makes Unnan an ideal destination for travelers to experience a mix of mild days and crisp, cool evenings.

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

The chart illustrates April temperature patterns in Unnan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Unnan, April typically has an average temperature of 13°C (55°F), with highs reaching up to 28°C (82°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec383947556470788172625242
Data source: Temperature data for Unnan 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 Unnan

In Unnan in April, the precipitation amount is 125 mm (4.9 in) over the course of 11 days.

April Precipitation Trends in Unnan

The chart displays monthly precipitation patterns in Unnan, 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 Unnan, April typically receives around 125 mm (4.9 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec9610213812510219730126323817258121
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Unnan

In Unnan in April, humidity is 74%. With an average temperature of 13°C (55°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities somewhat uncomfortable and demanding frequent breaks in shaded areas.

April Average Humidity in Unnan

This chart illustrates the average monthly humidity levels in Unnan, 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 Unnan is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%73%74%84%86%92%92%87%85%84%82%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Unnan

In Unnan 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 Unnan.

Maximum UV Index Levels in Unnan for April

The chart shows the monthly maximum UV Index (UVI) for Unnan 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 Unnan typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458111111121210753
Data source: Unnan 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 Unnan Compares to Other Months

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

This table compares monthly weather conditions in Unnan, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)96 mm (3.8 inches)82%moderate
February Weather4°C (40°F)102 mm (4.0 inches)79%moderate
March Weather8°C (47°F)138 mm (5.4 inches)73%very high
April Weather13°C (55°F)125 mm (4.9 inches)74%extreme
May Weather18°C (65°F)102 mm (4.0 inches)84%extreme
June Weather21°C (70°F)197 mm (7.7 inches)86%extreme
July Weather25°C (78°F)301 mm (11.9 inches)92%extreme
August Weather27°C (81°F)263 mm (10.4 inches)92%extreme
September Weather22°C (72°F)238 mm (9.4 inches)87%very high
October Weather17°C (62°F)172 mm (6.8 inches)85%high
November Weather11°C (52°F)58 mm (2.3 inches)84%moderate
December Weather6°C (43°F)121 mm (4.8 inches)82%moderate

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