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August Weather in Otsuchi, Japan

Last updated: August 23, 2025

In August, the average temperature in Otsuchi, Japan hovers around 22°C (72°F), with a minimum of 18°C (64°F) and a maximum reaching 28°C (82°F). Visitors can expect significant precipitation, averaging 200 mm (7.9 in) over the course of 18 days, coupled with high humidity levels at approximately 92%. Whether you're exploring the sights or relaxing indoors, dress appropriately for the warm, wet climate!

August Temperature in Otsuchi

In August in Otsuchi, the average temperature is 22°C (72°F). Maximums can reach 28°C (82°F) and minimums can be as low as 18°C (64°F). This pleasant climate makes it an ideal time for outdoor activities and exploration.

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

The chart illustrates August temperature patterns in Otsuchi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Otsuchi, August typically has an average temperature of 22°C (72°F), with highs reaching up to 28°C (82°F) and lows dropping to around 18°C (64°F).
JanFebMarAprMayJunJulAugSepOctNovDec373641475461687269615241
Data source: Temperature data for Otsuchi 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 Otsuchi

In Otsuchi in August, the precipitation amount is 200 mm (7.9 in) over the course of 18 days.

August Precipitation Trends in Otsuchi

The chart displays monthly precipitation patterns in Otsuchi, 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 Otsuchi, August typically receives around 200 mm (7.9 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec51591151271161211762001852435771
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Otsuchi

In Otsuchi 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 Otsuchi

This chart illustrates the average monthly humidity levels in Otsuchi, 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 Otsuchi is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%77%75%80%87%92%92%86%82%79%80%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Otsuchi

In Otsuchi in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Otsuchi.

Maximum UV Index Levels in Otsuchi for August

The chart shows the monthly maximum UV Index (UVI) for Otsuchi 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 Otsuchi typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346891110109643
Data source: Otsuchi 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 Otsuchi Compares to Other Months

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

This table compares monthly weather conditions in Otsuchi, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)51 mm (2.0 inches)80%moderate
February Weather2°C (37°F)59 mm (2.3 inches)79%moderate
March Weather5°C (42°F)115 mm (4.5 inches)77%high
April Weather8°C (47°F)127 mm (5.0 inches)75%very high
May Weather12°C (55°F)116 mm (4.6 inches)80%very high
June Weather16°C (61°F)120 mm (4.7 inches)87%extreme
July Weather20°C (69°F)175 mm (6.9 inches)92%very high
August Weather22°C (72°F)200 mm (7.9 inches)92%very high
September Weather20°C (69°F)185 mm (7.3 inches)86%very high
October Weather16°C (61°F)243 mm (9.6 inches)82%high
November Weather11°C (52°F)57 mm (2.3 inches)79%moderate
December Weather5°C (42°F)71 mm (2.8 inches)80%moderate

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