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April Weather in Kamaishi, Japan

Last updated: August 23, 2025

In April, the average temperature in Kamaishi, Japan hovers around 8°C (47°F), with extremes ranging from a chilly -2°C (28°F) to a warm 22°C (73°F). Expect about 123 mm (4.9 in) of precipitation spread over 14 days, contributing to an average humidity level of 75%. 🌦️

April Temperature in Kamaishi

In April in Kamaishi, the average temperature is 8°C (47°F), with maximums reaching 22°C (73°F) and minimums dropping as low as -2°C (28°F). This climate makes it essential to pack layers for your travels to Kamaishi.

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

The chart illustrates April temperature patterns in Kamaishi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kamaishi, April typically has an average temperature of 8°C (47°F), with highs reaching up to 22°C (73°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec333340475763707367574736
Data source: Temperature data for Kamaishi 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 Kamaishi

In Kamaishi in April, the total precipitation amount is 123 mm (4.9 in), which fell over the course of 14 days.

April Precipitation Trends in Kamaishi

The chart displays monthly precipitation patterns in Kamaishi, 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 Kamaishi, April typically receives around 123 mm (4.9 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec45561211231181351872081712235667
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Kamaishi

In Kamaishi in April humidity is 75%. With an average temperature of 8°C (47°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities quite uncomfortable and requiring you to bundle up to stay warm while navigating the misty streets.

April Average Humidity in Kamaishi

This chart illustrates the average monthly humidity levels in Kamaishi, 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 Kamaishi is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%77%75%80%87%92%92%86%82%79%80%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Kamaishi

In Kamaishi 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 Kamaishi.

Maximum UV Index Levels in Kamaishi for April

The chart shows the monthly maximum UV Index (UVI) for Kamaishi 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 Kamaishi typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346891110109643
Data source: Kamaishi 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 Kamaishi Compares to Other Months

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

This table compares monthly weather conditions in Kamaishi, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)45 mm (1.8 inches)80%moderate
February Weather1°C (33°F)56 mm (2.2 inches)79%moderate
March Weather4°C (40°F)121 mm (4.8 inches)77%high
April Weather8°C (47°F)123 mm (4.9 inches)75%very high
May Weather14°C (57°F)118 mm (4.7 inches)80%very high
June Weather17°C (63°F)135 mm (5.3 inches)87%extreme
July Weather21°C (70°F)187 mm (7.3 inches)92%very high
August Weather23°C (73°F)208 mm (8.2 inches)92%very high
September Weather20°C (67°F)171 mm (6.7 inches)86%very high
October Weather14°C (58°F)223 mm (8.8 inches)82%high
November Weather8°C (47°F)56 mm (2.2 inches)79%moderate
December Weather2°C (36°F)67 mm (2.6 inches)80%moderate

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