Old Saybrook Weather in September

In Old Saybrook, September brings high daytime temperatures around 24°C (75°F), with nights cooling to 14°C (57°F). Expect quite a bit of rainfall this month.

Rainfall in Old Saybrook in September

Rain is expected on roughly 9 days, totalling around 115 mm (4.5 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Old Saybrook in September

Expect highs of 24°C (75°F) in Old Saybrook in September, with nights dropping to around 14°C (57°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights drop to around 14°C (57°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Old Saybrook in September

With approximately 223 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

If you prefer enjoying temperate temperatures and rain-free days, May and July typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.