Nampa Weather in September

With daytime temperatures of 27°C (81°F) and nighttime lows of 9°C (48°F), September in Nampa brings high temperatures during the day. The excellent weather makes it an appealing time to visit.

Rainfall in Nampa in September

Rain is expected on roughly 4 days, totalling around 15 mm (0.6 in) for the month. Rain days are few and the total is low, so this is a largely dry month. Any showers that do occur tend to be brief.

Temperature in Nampa in September

Nampa has excellent weather in September, with days reaching 27°C (81°F) and nights cooling to 9°C (48°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 9°C (48°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Nampa in September

There are approximately 303 hours of sunshine this month, resulting in mostly clear days.

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