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August Weather in Otsuki, Japan

Last updated: August 23, 2025

In Otsuki, Japan, the average temperature in August reaches a comfortable 25°C (77°F). However, temperatures can fluctuate, with a minimum of 14°C (58°F) and a maximum of 35°C (95°F). Expect significant precipitation, totaling 172 mm (6.8 in) over 19 days, while the average humidity hovers around a muggy 90%. Prepare for a month that is both warm and wet!

August Temperature in Otsuki

In August in Otsuki, the average temperature is 25°C (77°F). Maximums can reach 35°C (95°F) and minimums can be as low as 14°C (58°F). This makes it a great time for travelers to enjoy pleasant weather while exploring the area.

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

The chart illustrates August temperature patterns in Otsuki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Otsuki, August typically has an average temperature of 25°C (77°F), with highs reaching up to 35°C (95°F) and lows dropping to around 14°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec363744526166737769595040
Data source: Temperature data for Otsuki 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 Otsuki

In Otsuki in August, the total precipitation amount reaches 172 mm (6.8 in) over a span of 19 days.

August Precipitation Trends in Otsuki

The chart displays monthly precipitation patterns in Otsuki, 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 Otsuki, August typically receives around 172 mm (6.8 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec59731821651642163051722383648469
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Otsuki

In Otsuki in August humidity is 90%. With an average temperature of 25°C (77°F), this humidity feels like a warm, moist blanket enveloping you, making any outdoor travel feel stifling and heavy, often leading to a quick exhaustion as you navigate through the sultry air.

August Average Humidity in Otsuki

This chart illustrates the average monthly humidity levels in Otsuki, 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 Otsuki 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 Otsuki

In Otsuki 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 Otsuki.

Maximum UV Index Levels in Otsuki for August

The chart shows the monthly maximum UV Index (UVI) for Otsuki 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 Otsuki typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121110754
Data source: Otsuki 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 Otsuki Compares to Other Months

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

This table compares monthly weather conditions in Otsuki, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)59 mm (2.3 inches)76%moderate
February Weather3°C (38°F)72 mm (2.9 inches)74%high
March Weather7°C (45°F)182 mm (7.2 inches)70%very high
April Weather11°C (52°F)164 mm (6.5 inches)74%very high
May Weather16°C (61°F)164 mm (6.5 inches)81%extreme
June Weather19°C (66°F)216 mm (8.5 inches)88%extreme
July Weather23°C (74°F)305 mm (12.0 inches)93%extreme
August Weather25°C (77°F)172 mm (6.8 inches)90%extreme
September Weather20°C (69°F)238 mm (9.4 inches)86%very high
October Weather15°C (59°F)364 mm (14.3 inches)83%high
November Weather10°C (50°F)84 mm (3.3 inches)80%moderate
December Weather4°C (40°F)68 mm (2.7 inches)78%moderate

Compare Otsuki's Climate with Cities Worldwide