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August Weather in South Yarmouth, United States

Last updated: June 24, 2025

In South Yarmouth, United States, the average temperature in August hovers around 22°C (72°F), with a pleasant range between a minimum of 16°C (61°F) and a maximum of 27°C (81°F). Expect 82 mm (3.2 in) of precipitation over the month, typically spanning 8 days. The atmosphere is quite humid, with an average humidity of 76%, making it essential to stay refreshed and hydrated!

August Temperature in South Yarmouth

In August in South Yarmouth, the average temperature is 22°C (72°F). The maximum can reach 27°C (81°F), while the minimum can dip as low as 16°C (61°F). This pleasant weather makes it an ideal destination for travelers seeking mild and comfortable conditions.

August Weather in South Yarmouth: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in South Yarmouth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In South Yarmouth, 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 16°C (61°F).
JanFebMarAprMayJunJulAugSepOctNovDec353638455363707266594839
Data source: Temperature data for South Yarmouth 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 South Yarmouth

In South Yarmouth in August, the total precipitation amount reached 82 mm (3.2 in) over the course of 8 days.

August Precipitation Trends in South Yarmouth

The chart displays monthly precipitation patterns in South Yarmouth, 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 South Yarmouth, August typically receives around 82 mm (3.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec94123118137119918382118175102136
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in South Yarmouth

In South Yarmouth in August humidity is 76%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace, making travel slightly uncomfortable as you navigate through the thick, saturated air.

August Average Humidity in South Yarmouth

This chart illustrates the average monthly humidity levels in South Yarmouth, 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 South Yarmouth is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%82%79%75%78%76%76%76%75%80%80%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in South Yarmouth

In South Yarmouth in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in South Yarmouth.

Maximum UV Index Levels in South Yarmouth for August

The chart shows the monthly maximum UV Index (UVI) for South Yarmouth 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 South Yarmouth typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468910998642
Data source: South Yarmouth 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 South Yarmouth Compares to Other Months

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

This table compares monthly weather conditions in South Yarmouth, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)94 mm (3.7 inches)84%moderate
February Weather2°C (36°F)123 mm (4.8 inches)84%moderate
March Weather3°C (38°F)118 mm (4.7 inches)82%high
April Weather7°C (46°F)137 mm (5.4 inches)79%very high
May Weather12°C (53°F)119 mm (4.7 inches)75%very high
June Weather17°C (63°F)91 mm (3.6 inches)78%very high
July Weather21°C (71°F)83 mm (3.3 inches)76%very high
August Weather22°C (72°F)82 mm (3.2 inches)76%very high
September Weather19°C (67°F)118 mm (4.7 inches)75%very high
October Weather15°C (59°F)175 mm (6.9 inches)75%high
November Weather9°C (48°F)102 mm (4.0 inches)80%moderate
December Weather4°C (40°F)136 mm (5.4 inches)80%low

Compare South Yarmouth's Climate with Cities Worldwide