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August Weather in Katashina, Japan

Last updated: August 23, 2025

In August, the average temperature in Katashina, Japan reaches a pleasant 22°C (72°F). Expect lows of around 9°C (48°F) and highs soaring to 31°C (88°F). Be prepared for some rain, as 211 mm (8.3 in) of precipitation is spread over 24 days, resulting in an average humidity of 92%.

August Temperature in Katashina

In August in Katashina, the average temperature is 22°C (72°F). Maximums can reach 31°C (88°F), and minimums can be as low as 9°C (48°F). This makes it a perfect time to enjoy outdoor activities while packing layers for cooler evenings.

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

The chart illustrates August temperature patterns in Katashina, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Katashina, August typically has an average temperature of 22°C (72°F), with highs reaching up to 31°C (88°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec272837455662697264544332
Data source: Temperature data for Katashina 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 Katashina

In Katashina in August, the total precipitation amount is 211 mm (8.3 in) spread over 24 days.

August Precipitation Trends in Katashina

The chart displays monthly precipitation patterns in Katashina, 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 Katashina, August typically receives around 211 mm (8.3 inches) of precipitation spread over approximately 24 days.
JanFebMarAprMayJunJulAugSepOctNovDec81781361341461832942111892466593
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Katashina

In Katashina in August humidity is 92%. With an average temperature of 22°C (72°F), this humidity feels like a heavy blanket wrapping around you, making every step feel laborious and the air thick and muggy, which can be quite challenging for traveling.

August Average Humidity in Katashina

This chart illustrates the average monthly humidity levels in Katashina, 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 Katashina is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%81%79%81%88%92%92%89%87%85%86%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Katashina

In Katashina 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 Katashina.

Maximum UV Index Levels in Katashina for August

The chart shows the monthly maximum UV Index (UVI) for Katashina 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 Katashina typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469101111111110753
Data source: Katashina 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 Katashina Compares to Other Months

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

This table compares monthly weather conditions in Katashina, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)80 mm (3.2 inches)88%moderate
February Weather-2°C (29°F)78 mm (3.1 inches)86%high
March Weather3°C (37°F)136 mm (5.4 inches)81%very high
April Weather7°C (45°F)134 mm (5.3 inches)78%very high
May Weather13°C (56°F)146 mm (5.7 inches)81%extreme
June Weather17°C (62°F)183 mm (7.2 inches)88%extreme
July Weather21°C (70°F)294 mm (11.6 inches)92%extreme
August Weather22°C (72°F)211 mm (8.3 inches)92%extreme
September Weather18°C (64°F)189 mm (7.5 inches)89%very high
October Weather12°C (54°F)246 mm (9.7 inches)87%high
November Weather6°C (43°F)65 mm (2.6 inches)85%moderate
December Weather0°C (32°F)93 mm (3.7 inches)86%moderate

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