Old Saybrook (CT) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Old Saybrook.
Climate overview of Old Saybrook
Old Saybrook, Connecticut, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 28°C (82°F) in July, while winters cool to 4°C (39°F) in January.
With around 1273 mm (50 in) of annual rain/snowfall, Old Saybrook has a notably wet climate. However, this rain/snowfall is not evenly distributed — the city has warm summers and cold winters. The wettest month is June. July is the sunniest month, averaging 9.8 hours of sunshine per day.
Old Saybrook Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Old Saybrook - and find the best time to visit.
Monthly Temperature in Old Saybrook
Depending on the time of the year, temperatures range from comfortable to chilly in Old Saybrook. Average daytime temperatures reach a comfortable 28°C (82°F) in July. In January, the coolest month of the year, temperatures drop to a chilly 4°C (39°F).
At night, temperatures range from around 19°C (66°F) in July to -5°C (23°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Old Saybrook
Old Saybrook has a relatively rain/snowy climate with high precipitation levels, averaging 1273 mm (50 in) of rain/snowfall annually. Despite minor fluctuations, Old Saybrook enjoys fairly consistent precipitation throughout the year. In June, you can expect around 135 mm (5.3 in) of precipitation, while in November, Old Saybrook receives about 90 mm (3.5 in). For more details, please visit our Old Saybrook Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Old Saybrook
Old Saybrook can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 9.8 hours of sunshine daily. In contrast, the city experiences much darker days in November, with only 4.6 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Old Saybrook by Month
The relative humidity is high throughout the year in Old Saybrook.
The city experiences its highest humidity in September, reaching 72%. In April, the humidity drops to its lowest level at 58%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Old Saybrook
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May and July
- Warmest weather: July and August
- Most sunshine: July
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -5°C (23°F).
Frequently asked questions about the climate in Old Saybrook
What is the best time to visit Old Saybrook?
May and July typically offer the most optimal weather in Old Saybrook. In contrast, January, February, March and December tend to have less optimal conditions. Old Saybrook has warm summers and cold winters.
What temperatures can I expect in Old Saybrook?
Daytime highs range from 4°C (39°F) in January to 28°C (82°F) in July. Nighttime lows range from -5°C (23°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Old Saybrook get?
Annual rainfall is around 1273 mm (50 in). June is the wettest month with 135 mm (5.3 in), while November is the driest with 90 mm (3.5 in).
How sunny is Old Saybrook?
Old Saybrook receives around 2,579 hours of sunshine per year. July is the sunniest month with 293 hours, while November is the cloudiest with just 139 hours. Overall, Old Saybrook enjoys abundant sunshine.
Old Saybrook 3-Day Forecast
Old Saybrook (CT) 3-Day Forecast
Old Saybrook on the map
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