August Weather in Ishii, Japan

Last updated: August 23, 2025

In August, the average temperature in Ishii, Japan hovers around 27°C (81°F), offering warm and inviting weather. Expect minimums of 19°C (67°F) and peaks reaching up to 33°C (92°F). While basking in the sun, prepare for occasional rain, with 226 mm (8.9 in) of precipitation spread over 16 days. Additionally, the air is typically humid, with an average humidity level of 88%, creating a lush and tropical atmosphere.

August Temperature in Ishii

In August in Ishii, the average temperature is 27°C (81°F). Maximums can reach 33°C (92°F), while minimums can drop as low as 19°C (67°F). This makes Ishii an ideal destination for travelers seeking warm weather and comfortable conditions.

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

The chart illustrates August temperature patterns in Ishii, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ishii, August typically has an average temperature of 27°C (81°F), with highs reaching up to 33°C (92°F) and lows dropping to around 19°C (67°F).
JanFebMarAprMayJunJulAugSepOctNovDec434450576571788175665747
Data source: Temperature data for Ishii 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 Ishii

In Ishii in August, the total precipitation amount is 226 mm (8.9 in), falling over the course of 16 days.

August Precipitation Trends in Ishii

The chart displays monthly precipitation patterns in Ishii, 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 Ishii, August typically receives around 226 mm (8.9 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec60711371451842343782262943606564
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Ishii

In Ishii in August, humidity is 88%. With an average temperature of 27°C (81°F), this humidity feels like a warm, thick blanket wrapping around you as you travel, making every step feel more laborious and requiring frequent breaks to cool down and hydrate.

August Average Humidity in Ishii

This chart illustrates the average monthly humidity levels in Ishii, 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 Ishii is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%70%70%76%83%86%91%88%85%82%79%77%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Ishii

In Ishii in August, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Ishii.

Maximum UV Index Levels in Ishii for August

The chart shows the monthly maximum UV Index (UVI) for Ishii 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 Ishii typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468111112121210764
Data source: Ishii 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 Ishii Compares to Other Months

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

This table compares monthly weather conditions in Ishii, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)60 mm (2.4 inches)74%moderate
February Weather7°C (44°F)71 mm (2.8 inches)70%high
March Weather10°C (51°F)137 mm (5.4 inches)70%very high
April Weather14°C (57°F)145 mm (5.7 inches)76%extreme
May Weather18°C (65°F)184 mm (7.3 inches)82%extreme
June Weather21°C (71°F)234 mm (9.2 inches)86%extreme
July Weather26°C (78°F)378 mm (14.9 inches)91%extreme
August Weather27°C (81°F)226 mm (8.9 inches)88%extreme
September Weather24°C (75°F)294 mm (11.6 inches)85%very high
October Weather19°C (67°F)360 mm (14.2 inches)82%high
November Weather14°C (57°F)65 mm (2.5 inches)79%high
December Weather9°C (48°F)64 mm (2.5 inches)77%moderate

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