Annapolis Weather in September

September in Annapolis typically sees daytime highs of 25°C (77°F) and nighttime lows of 18°C (64°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Annapolis in September

This month experiences about 9 days of rain according to historical data, averaging 110 mm (4.3 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Annapolis in September

Temperatures in Annapolis in September top out at 25°C (77°F) and drop to 18°C (64°F) overnight. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 18°C (64°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Annapolis in September

The city usually sees around 225 hours of sunlight, indicating many sunny days , a great month for sightseeing.

Should you favor a climate that's both dry and comfortably warm, May typically offers the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.