Norwalk Weather in September

With daytime temperatures of 30°C (86°F) and nighttime lows of 18°C (64°F), September in Norwalk brings high temperatures during the day. The excellent weather makes it an appealing time to visit.

Rainfall in Norwalk in September

You can typically expect a single day of rain this month, averaging around 3.3 mm (0.1 in). If rain does fall, it tends to be very light and barely worth getting out an umbrella for.

Temperature in Norwalk in September

The excellent temperature in Norwalk in September makes it a solid month to visit, with 30°C (86°F) during the day and 18°C (64°F) at night. Overall, the month follows a fairly predictable daily temperature pattern. Nights cool down to 18°C (64°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Norwalk in September

The days are predominantly sunny, with an estimated total of around 278 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

September in Norwalk has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.