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August Weather in Kamaishi, Japan

Last updated: August 23, 2025

In Kamaishi, Japan, the average temperature in August is a pleasant 23°C (73°F), with temperatures ranging from a cool 13°C (56°F) to a warm 32°C (89°F). During this time, expect significant rainfall, with a total precipitation of 208 mm (8.2 in) occurring over 19 days. Humidity levels are notably high, averaging 92%, making it feel quite tropical.

August Temperature in Kamaishi

In August in Kamaishi, the average temperature is 23°C (73°F). The maximum can reach 32°C (89°F), while the minimum can drop as low as 13°C (56°F). This weather makes it a perfect time to pack light layers and enjoy a variety of outdoor activities.

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

The chart illustrates August 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, August typically has an average temperature of 23°C (73°F), with highs reaching up to 32°C (89°F) and lows dropping to around 13°C (56°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.

August Precipitation in Kamaishi

In Kamaishi in August, the precipitation amount is 208 mm (8.2 in) over a span of 19 days.

August Precipitation Trends in Kamaishi

The chart displays monthly precipitation patterns in Kamaishi, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Kamaishi, August typically receives around 208 mm (8.2 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec45561211231181351872081712235667
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Kamaishi

In Kamaishi in August, humidity is 92%. With an average temperature of 23°C (73°F), this humidity feels like an intense blanket of heat, making outdoor activities sticky and challenging for travelers.

August Average Humidity in Kamaishi

This chart illustrates the average monthly humidity levels in Kamaishi, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Kamaishi is approximately 92%, 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 August generated using information from the Copernicus Climate Change Service.

August UV Index in Kamaishi

In Kamaishi in August, 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 Kamaishi.

Maximum UV Index Levels in Kamaishi for August

The chart shows the monthly maximum UV Index (UVI) for Kamaishi in August, 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 August, the maximum UV index in Kamaishi typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346891110109643
Data source: Kamaishi August 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 August 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 August’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 August’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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