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August Weather in Shiroishi, Japan

Last updated: August 23, 2025

In August, the average temperature in Shiroishi, Japan is a pleasant 24°C (76°F). However, be prepared for a range; temperatures can drop to a cool 13°C (56°F) or soar as high as 36°C (97°F). During this month, you can expect 183 mm (7.2 in) of precipitation spread over 19 days, contributing to a relatively high average humidity of 90%.

August Temperature in Shiroishi

In August in Shiroishi, the average temperature is 24°C (76°F), with maximums reaching up to 36°C (97°F) and minimums dropping as low as 13°C (56°F). This diverse temperature range makes it a great time for travelers to enjoy both warm days and cooler evenings.

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

The chart illustrates August temperature patterns in Shiroishi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shiroishi, August typically has an average temperature of 24°C (76°F), with highs reaching up to 36°C (97°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec313241496066737668574636
Data source: Temperature data for Shiroishi 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 Shiroishi

In Shiroishi in August, the total precipitation amount is 183 mm (7.2 in) over a span of 19 days.

August Precipitation Trends in Shiroishi

The chart displays monthly precipitation patterns in Shiroishi, 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 Shiroishi, August typically receives around 183 mm (7.2 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec79691121091061002451831401944687
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Shiroishi

In Shiroishi in August humidity is 90%. With an average temperature of 24°C (76°F), this humidity feels like stepping into a warm, thick blanket that envelops you, making every outdoor activity feel more exhausting than invigorating and prompting frequent breaks to cool off in the shade.

August Average Humidity in Shiroishi

This chart illustrates the average monthly humidity levels in Shiroishi, 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 Shiroishi is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%75%72%73%80%87%93%90%84%80%77%77%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Shiroishi

In Shiroishi in August, 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 Shiroishi.

Maximum UV Index Levels in Shiroishi for August

The chart shows the monthly maximum UV Index (UVI) for Shiroishi 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 Shiroishi typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101011119643
Data source: Shiroishi 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 Shiroishi Compares to Other Months

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

This table compares monthly weather conditions in Shiroishi, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)79 mm (3.1 inches)76%moderate
February Weather0°C (33°F)69 mm (2.7 inches)75%moderate
March Weather5°C (41°F)112 mm (4.4 inches)72%high
April Weather9°C (49°F)109 mm (4.3 inches)73%very high
May Weather16°C (60°F)106 mm (4.2 inches)80%very high
June Weather19°C (66°F)100 mm (3.9 inches)87%very high
July Weather23°C (74°F)245 mm (9.6 inches)92%extreme
August Weather24°C (76°F)183 mm (7.2 inches)90%extreme
September Weather20°C (68°F)140 mm (5.5 inches)84%very high
October Weather14°C (58°F)194 mm (7.6 inches)80%high
November Weather8°C (47°F)46 mm (1.8 inches)77%moderate
December Weather2°C (36°F)87 mm (3.4 inches)77%moderate

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