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August Weather in Cos Cob, United States

Last updated: June 24, 2025

In August, the average temperature in Cos Cob, United States is a pleasant 24°C (75°F). Expect minimums of 15°C (60°F) and maximums reaching up to 33°C (91°F). During this month, the region experiences an average precipitation of 118 mm (4.6 in) over 14 days, with an average humidity of 65%. Ideal weather for exploring!

August Temperature in Cos Cob

In August in Cos Cob, the average temperature is 24°C (75°F). The maximum can reach 33°C (91°F), and the minimum can be as low as 15°C (60°F). This pleasant climate makes Cos Cob an ideal destination for travelers seeking warm weather and outdoor activities.

August Weather in Cos Cob: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Cos Cob, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cos Cob, August typically has an average temperature of 24°C (75°F), with highs reaching up to 33°C (91°F) and lows dropping to around 15°C (60°F).
JanFebMarAprMayJunJulAugSepOctNovDec333540506070777569604638
Data source: Temperature data for Cos Cob 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 Cos Cob

In Cos Cob in August, the precipitation amount is 118 mm (4.6 in) over a span of 14 days.

August Precipitation Trends in Cos Cob

The chart displays monthly precipitation patterns in Cos Cob, 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 Cos Cob, August typically receives around 118 mm (4.6 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec6910193116112941391189313190114
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Cos Cob

In Cos Cob in August humidity is 65%. With average temperature 24°C (75°F), this humidity feels like a warm blanket enveloping you, making outdoor activities a bit sticky but still enjoyable for exploring sights and sounds.

August Average Humidity in Cos Cob

This chart illustrates the average monthly humidity levels in Cos Cob, 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 Cos Cob is approximately 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Cos Cob

In Cos Cob 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 Cos Cob.

Maximum UV Index Levels in Cos Cob for August

The chart shows the monthly maximum UV Index (UVI) for Cos Cob 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 Cos Cob typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35681010998642
Data source: Cos Cob 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 Cos Cob Compares to Other Months

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

This table compares monthly weather conditions in Cos Cob, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)69 mm (2.7 inches)84%moderate
February Weather2°C (36°F)101 mm (4.0 inches)82%moderate
March Weather5°C (41°F)93 mm (3.7 inches)81%high
April Weather10°C (50°F)116 mm (4.6 inches)78%very high
May Weather15°C (60°F)112 mm (4.4 inches)69%very high
June Weather21°C (70°F)93 mm (3.7 inches)69%very high
July Weather25°C (77°F)139 mm (5.5 inches)62%very high
August Weather24°C (75°F)118 mm (4.6 inches)65%very high
September Weather21°C (69°F)93 mm (3.6 inches)68%very high
October Weather15°C (60°F)131 mm (5.2 inches)74%high
November Weather8°C (47°F)90 mm (3.6 inches)82%moderate
December Weather3°C (39°F)113 mm (4.5 inches)80%low

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