Riverwoods Weather in September

September in Riverwoods typically sees daytime highs of 24°C (75°F) and nighttime lows of 13°C (55°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Riverwoods in September

You can expect rain on around 10 days based on historical patterns, with 93 mm (3.7 in) average for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Riverwoods in September

Weather in Riverwoods is at its excellent in September. Highs reach 24°C (75°F), while nights settle around 13°C (55°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 13°C (55°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 Riverwoods in September

Expect sunny days throughout the month, with an estimated 226 hours of sunshine. This makes it a pleasant time to visit Riverwoods.

Wind Speed in Riverwoods 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.

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