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August Weather in Sai, Japan

Last updated: August 23, 2025

In August, the average temperature in Sai, Japan is a pleasant 22°C (72°F), with daily highs reaching up to 27°C (81°F) and lows around 17°C (63°F). Expect a fair share of rain, as 187 mm (7.4 in) of precipitation typically falls over 14 days. With an average humidity of 97%, make sure to enjoy the lush, vibrant atmosphere that accompanies this warm climate!

August Temperature in Sai

In August in Sai, the average temperature is 22°C (72°F), with maximums reaching 27°C (81°F) and minimums dropping to 17°C (63°F). This mild climate makes it an ideal time for traveling, offering comfortable weather for exploring and enjoying outdoor activities.

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

The chart illustrates August temperature patterns in Sai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sai, August typically has an average temperature of 22°C (72°F), with highs reaching up to 27°C (81°F) and lows dropping to around 17°C (63°F).
JanFebMarAprMayJunJulAugSepOctNovDec343340465259677269614938
Data source: Temperature data for Sai 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 Sai

In Sai in August, the total precipitation amount is 187 mm (7.4 in) over the course of 14 days.

August Precipitation Trends in Sai

The chart displays monthly precipitation patterns in Sai, 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 Sai, August typically receives around 187 mm (7.4 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec1121179398104112110188132156131168
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Sai

In Sai in August, humidity is 97%. With an average temperature of 22°C (72°F), this humidity feels like a heavy blanket enveloping you, making travel feel sticky and exhausting, as every step leaves you longing for a cool breeze.

August Average Humidity in Sai

This chart illustrates the average monthly humidity levels in Sai, 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 Sai is approximately 97%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%78%77%78%86%91%95%97%89%82%78%77%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Sai

In Sai 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 Sai.

Maximum UV Index Levels in Sai for August

The chart shows the monthly maximum UV Index (UVI) for Sai 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 Sai typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235891010118632
Data source: Sai 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 Sai Compares to Other Months

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

This table compares monthly weather conditions in Sai, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)112 mm (4.4 inches)79%low
February Weather1°C (34°F)117 mm (4.6 inches)78%moderate
March Weather4°C (40°F)93 mm (3.7 inches)77%moderate
April Weather8°C (46°F)98 mm (3.9 inches)78%very high
May Weather11°C (53°F)103 mm (4.1 inches)86%very high
June Weather15°C (59°F)112 mm (4.4 inches)91%very high
July Weather19°C (67°F)110 mm (4.3 inches)95%very high
August Weather22°C (72°F)187 mm (7.4 inches)97%extreme
September Weather21°C (69°F)132 mm (5.2 inches)89%very high
October Weather16°C (61°F)156 mm (6.1 inches)81%high
November Weather9°C (49°F)131 mm (5.1 inches)78%moderate
December Weather3°C (38°F)167 mm (6.6 inches)77%low

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