Gretna Weather in September

September in Gretna sees daytime temperatures around 31°C (88°F) and lows of 23°C (73°F) at night. With around 155 mm (6.1 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Gretna in September

Records from the past 30 years suggest around 13 days of rain, with 155 mm (6.1 in) average for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Gretna in September

Daytime temperatures in Gretna reach 31°C (88°F) in September, dropping to 23°C (73°F) at night. Mornings and evenings are often more comfortable than the peak afternoon hours. At 23°C (73°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.

Sunshine in Gretna in September

Enjoy a sunny month with about 227 hours of sunshine, the clear skies make Gretna even more beautiful.

Wind Speed in Gretna in September

Average wind speeds reach 3 m/s (6 knots) in September, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.

Average water temperature in September

With water at 28°C (82°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period, it feels comfortable straight away.

If your ideal day consists of dry skies and pleasant temperatures, November typically offers the best circumstances for Gretna.