nomadseason

August Weather in Old Saybrook, United States

Last updated: June 24, 2025

In August, the average temperature in Old Saybrook, United States hovers around 23°C (74°F), offering a pleasant climate for outdoor activities. Expect minimums of 15°C (59°F) and maximums reaching up to 29°C (85°F). While you might enjoy the warmth, be prepared for some rain, with an average precipitation of 94 mm (3.7 in) spread over 10 days. The air tends to be moderately humid, with an average humidity level of 65%. Enjoy your stay!

August Temperature in Old Saybrook

In August in Old Saybrook, the average temperature is 23°C (74°F), with maximums reaching 29°C (85°F) and minimums dropping to as low as 15°C (59°F). This pleasant climate makes Old Saybrook an ideal destination for travelers seeking enjoyable weather during their visit.

August Weather in Old Saybrook: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Old Saybrook, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Old Saybrook, August typically has an average temperature of 23°C (74°F), with highs reaching up to 29°C (85°F) and lows dropping to around 15°C (59°F).
JanFebMarAprMayJunJulAugSepOctNovDec343539475666737468604839
Data source: Temperature data for Old Saybrook generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Old Saybrook

In Old Saybrook in August, the precipitation amount is 94 mm (3.7 in) over a duration of 10 days.

August Precipitation Trends in Old Saybrook

The chart displays monthly precipitation patterns in Old Saybrook, 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 Old Saybrook, August typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec83113105141119821289498151106151
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

August Humidity in Old Saybrook

In Old Saybrook in August, humidity is 65%. With an average temperature of 23°C (74°F), this humidity feels like a warm, sticky embrace, making outdoor activities somewhat challenging but still enjoyable with the right planning.

August Average Humidity in Old Saybrook

This chart illustrates the average monthly humidity levels in Old Saybrook, 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 Old Saybrook 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 Old Saybrook

In Old Saybrook 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 Old Saybrook.

Maximum UV Index Levels in Old Saybrook for August

The chart shows the monthly maximum UV Index (UVI) for Old Saybrook 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 Old Saybrook typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35689101098642
Data source: Old Saybrook 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 Old Saybrook Compares to Other Months

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

This table compares monthly weather conditions in Old Saybrook, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)83 mm (3.3 inches)84%moderate
February Weather2°C (35°F)113 mm (4.4 inches)82%moderate
March Weather4°C (39°F)105 mm (4.1 inches)81%high
April Weather8°C (47°F)141 mm (5.5 inches)78%very high
May Weather13°C (56°F)119 mm (4.7 inches)69%very high
June Weather19°C (66°F)82 mm (3.2 inches)69%very high
July Weather23°C (74°F)128 mm (5.1 inches)62%very high
August Weather23°C (74°F)94 mm (3.7 inches)65%very high
September Weather20°C (69°F)98 mm (3.9 inches)68%very high
October Weather16°C (60°F)151 mm (5.9 inches)74%high
November Weather9°C (48°F)106 mm (4.2 inches)82%moderate
December Weather4°C (39°F)151 mm (6.0 inches)80%low

Compare Old Saybrook's Climate with Cities Worldwide