Chevy Chase Weather in September

September in Chevy Chase typically sees daytime highs of 26°C (79°F) and nighttime lows of 15°C (59°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Chevy Chase in September

Analyzing past climate data, one can expect approximately 9 days of rain, averaging 107 mm (4.2 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Chevy Chase in September

September in Chevy Chase brings high temperatures, with highs of 26°C (79°F) and nights around 15°C (59°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 15°C (59°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 Chevy Chase in September

There are approximately 225 hours of sunshine this month, resulting in mostly clear days.

Wind Speed in Chevy Chase in September

September sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

If you prefer enjoying temperate temperatures and rain-free days, April typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.