Lewiston Weather in September

In Lewiston, September brings pleasant daytime temperatures around 22°C (72°F), with nights cooling to 10°C (50°F). Expect quite a bit of rainfall this month.

Rainfall in Lewiston in September

Rain is expected on roughly 10 days, totalling around 101 mm (4 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Lewiston in September

September in Lewiston sees highs of 22°C (72°F) and lows of 10°C (50°F) overnight. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights cool down to 10°C (50°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 Lewiston in September

The days are predominantly sunny, with an estimated total of around 228 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

So this is a great month to visit if you prefer dry days with pleasant temperatures.