Greenbelt Weather in September

September in Greenbelt sees daytime temperatures around 26°C (79°F) and lows of 15°C (59°F) at night. With around 100 mm (3.9 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Greenbelt in September

Past climate data indicates that roughly 9 days will see rain, totalling around 100 mm (3.9 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Greenbelt in September

Daytime temperatures in Greenbelt reach 26°C (79°F) in September, dropping to 15°C (59°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights cool down to 15°C (59°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 Greenbelt in September

Expect a lot of sunshine this month, with about 225 hours of sun. These sunny conditions add to the overall experience.

Wind Speed in Greenbelt in September

In September, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Greenbelt.