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August Weather in Motosu, Japan

Last updated: August 23, 2025

In August, the average temperature in Motosu, Japan is a warm 27°C (82°F). While the minimum can dip to a comfortable 18°C (64°F), it can soar to a sizzling 38°C (100°F). Expect significant rainfall, with 322 mm (12.7 in) falling over 18 days, and be prepared for high humidity, averaging a steamy 91%.

August Temperature in Motosu

In August, in Motosu, the average temperature is 27°C (82°F). Maximums can reach 38°C (100°F), while minimums can drop to as low as 18°C (64°F). This pleasant climate makes Motosu an ideal destination for travelers seeking warmth and outdoor activities.

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

The chart illustrates August temperature patterns in Motosu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Motosu, August typically has an average temperature of 27°C (82°F), with highs reaching up to 38°C (100°F) and lows dropping to around 18°C (64°F).
JanFebMarAprMayJunJulAugSepOctNovDec394048566571788174645343
Data source: Temperature data for Motosu 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 Motosu

In Motosu in August, the precipitation amount is 322 mm (12.7 in) over the course of 18 days.

August Precipitation Trends in Motosu

The chart displays monthly precipitation patterns in Motosu, 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 Motosu, August typically receives around 322 mm (12.7 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec71791792232292454933222982347494
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Motosu

In Motosu in August, humidity is 91%. With an average temperature of 27°C (82°F), this humidity feels like a heavy, warm blanket wrapping around you, making outdoor adventures feel sticky and exhausting, and prompting you to seek respite in shaded areas or air-conditioned spaces.

August Average Humidity in Motosu

This chart illustrates the average monthly humidity levels in Motosu, 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 Motosu is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%74%76%83%87%93%91%87%85%83%83%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Motosu

In Motosu 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 Motosu.

Maximum UV Index Levels in Motosu for August

The chart shows the monthly maximum UV Index (UVI) for Motosu 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 Motosu typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111110753
Data source: Motosu 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 Motosu Compares to Other Months

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

This table compares monthly weather conditions in Motosu, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)71 mm (2.8 inches)82%moderate
February Weather4°C (40°F)79 mm (3.1 inches)79%high
March Weather9°C (48°F)179 mm (7.1 inches)74%very high
April Weather13°C (56°F)223 mm (8.8 inches)76%very high
May Weather18°C (65°F)229 mm (9.0 inches)83%extreme
June Weather22°C (71°F)245 mm (9.7 inches)87%extreme
July Weather26°C (78°F)493 mm (19.4 inches)93%extreme
August Weather27°C (82°F)322 mm (12.7 inches)91%extreme
September Weather23°C (74°F)298 mm (11.7 inches)87%very high
October Weather18°C (64°F)234 mm (9.2 inches)85%high
November Weather12°C (53°F)74 mm (2.9 inches)83%moderate
December Weather6°C (43°F)94 mm (3.7 inches)83%moderate

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