Suwanee Weather in September

September in Suwanee averages 28°C (82°F) during the day and 17°C (63°F) at night. Quite a bit of rainfall is typical this month, with around 97 mm (3.8 in) on average. An umbrella is a good idea.

Rainfall in Suwanee in September

Looking at the last 30 years, the data shows about 7 days with rain, averaging 97 mm (3.8 in) for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Suwanee in September

If you're visiting Suwanee in September, expect excellent temperatures with highs of 28°C (82°F) and overnight lows of 17°C (63°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows of 17°C (63°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Suwanee in September

Expect a lot of sunshine this month, with about 227 hours of sun. These sunny conditions add to the overall experience.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. April and September typically offer the best weather for Suwanee.