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August Weather in Kosaka, Japan

Last updated: August 23, 2025

In Kosaka, Japan, the average temperature in August hovers around 22°C (73°F), with minimums dipping to 11°C (52°F) and maximums reaching up to 33°C (93°F). Expect 179 mm (7.1 in) of precipitation spread across 16 days, contributing to a notably high average humidity of 97%.

August Temperature in Kosaka

In August in Kosaka, the average temperature is 22°C (73°F). Maximum temperatures can reach 33°C (93°F), while minimums can drop to as low as 11°C (52°F). This range makes it an ideal time for travelers to enjoy a variety of outdoor activities while being prepared for warm days and cooler evenings.

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

The chart illustrates August temperature patterns in Kosaka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kosaka, August typically has an average temperature of 22°C (73°F), with highs reaching up to 33°C (93°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec262735455763717265534230
Data source: Temperature data for Kosaka 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 Kosaka

In Kosaka in August, the precipitation amount is 179 mm (7.1 in) over a period of 16 days.

August Precipitation Trends in Kosaka

The chart displays monthly precipitation patterns in Kosaka, 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 Kosaka, August typically receives around 179 mm (7.1 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec78108107127116142168179137166100114
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Kosaka

In Kosaka in August, humidity is 97%. With an average temperature of 22°C (73°F), this humidity feels like you are constantly wrapped in a warm, heavy blanket, making traveling feel sluggish and sticky, often leaving you in search of shade and refreshing drinks.

August Average Humidity in Kosaka

This chart illustrates the average monthly humidity levels in Kosaka, 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 Kosaka is approximately 97%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%78%77%78%86%91%95%97%89%82%78%77%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Kosaka

In Kosaka 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 Kosaka.

Maximum UV Index Levels in Kosaka for August

The chart shows the monthly maximum UV Index (UVI) for Kosaka 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 Kosaka typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346891010119642
Data source: Kosaka 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 Kosaka Compares to Other Months

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

This table compares monthly weather conditions in Kosaka, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)78 mm (3.1 inches)79%moderate
February Weather-3°C (28°F)108 mm (4.3 inches)78%moderate
March Weather2°C (35°F)107 mm (4.2 inches)77%high
April Weather7°C (45°F)127 mm (5.0 inches)78%very high
May Weather14°C (57°F)116 mm (4.6 inches)86%very high
June Weather17°C (63°F)142 mm (5.6 inches)91%very high
July Weather22°C (71°F)168 mm (6.6 inches)95%very high
August Weather22°C (73°F)179 mm (7.1 inches)97%extreme
September Weather18°C (65°F)137 mm (5.4 inches)89%very high
October Weather12°C (54°F)166 mm (6.5 inches)81%high
November Weather6°C (42°F)100 mm (4.0 inches)78%moderate
December Weather-1°C (30°F)114 mm (4.5 inches)77%low

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