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August Weather in Kawaguchi, Japan

Last updated: August 23, 2025

In August, the average temperature in Kawaguchi, Japan hovers around 28°C (83°F). Expect a minimum of 18°C (65°F) and a maximum of 36°C (98°F). With an average humidity of 90%, the air can feel quite moist. Keep in mind, there's a chance of rainfall, with an average precipitation amount of 103 mm (4.1 in) spread over 12 days.

August Temperature in Kawaguchi

In August, in Kawaguchi, the average temperature is 28°C (83°F). The maximum can reach 36°C (98°F), while the minimum can drop to as low as 18°C (65°F). Be sure to pack accordingly to enjoy the warm and varied climate during your travels!

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

The chart illustrates August temperature patterns in Kawaguchi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kawaguchi, August typically has an average temperature of 28°C (83°F), with highs reaching up to 36°C (98°F) and lows dropping to around 18°C (65°F).
JanFebMarAprMayJunJulAugSepOctNovDec414351586773798375665646
Data source: Temperature data for Kawaguchi 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 Kawaguchi

In Kawaguchi in August, the total precipitation amount is 103 mm (4.1 in), occurring over the course of 12 days.

August Precipitation Trends in Kawaguchi

The chart displays monthly precipitation patterns in Kawaguchi, 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 Kawaguchi, August typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec46411321171111522211031862737756
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Kawaguchi

In Kawaguchi in August humidity is 90%. With an average temperature of 28°C (83°F), this humidity feels like walking through a warm, damp blanket, making travel strenuous and uncomfortable as sweat clings to your skin, and the air feels thick and heavy with moisture.

August Average Humidity in Kawaguchi

This chart illustrates the average monthly humidity levels in Kawaguchi, 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 Kawaguchi is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%74%70%74%82%88%93%90%86%83%80%78%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Kawaguchi

In Kawaguchi 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 Kawaguchi.

Maximum UV Index Levels in Kawaguchi for August

The chart shows the monthly maximum UV Index (UVI) for Kawaguchi 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 Kawaguchi typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35891111111110754
Data source: Kawaguchi 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 Kawaguchi Compares to Other Months

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

This table compares monthly weather conditions in Kawaguchi, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)46 mm (1.8 inches)76%moderate
February Weather6°C (43°F)41 mm (1.6 inches)74%moderate
March Weather10°C (51°F)132 mm (5.2 inches)70%very high
April Weather14°C (58°F)116 mm (4.6 inches)74%very high
May Weather20°C (68°F)111 mm (4.4 inches)81%extreme
June Weather23°C (73°F)152 mm (6.0 inches)88%extreme
July Weather26°C (79°F)221 mm (8.7 inches)93%extreme
August Weather28°C (83°F)103 mm (4.1 inches)90%extreme
September Weather24°C (75°F)186 mm (7.3 inches)86%very high
October Weather19°C (66°F)273 mm (10.7 inches)83%high
November Weather13°C (56°F)77 mm (3.0 inches)80%moderate
December Weather8°C (46°F)56 mm (2.2 inches)78%moderate

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