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Winthrop Harbor Weather in September
Winthrop Harbor in September sees high temperatures, with highs around 22°C (72°F) and overnight lows of 13°C (55°F). Rainfall is fairly high at around 94 mm (3.7 in) on average, so pack waterproofs just in case.
Rainfall in Winthrop Harbor in September
Historically, September sees about 10 days of rain, with a monthly average of 94 mm (3.7 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Winthrop Harbor in September
If you're visiting Winthrop Harbor in September, expect excellent temperatures with highs of 22°C (72°F) and overnight lows of 13°C (55°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 13°C (55°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Winthrop Harbor in September
The city usually sees around 226 hours of sunlight, indicating many sunny days , a great month for sightseeing.If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Winthrop Harbor.
Winthrop Harbor Temperature in September
Min Temperature
13°C (55°F)
Max Temperature
22°C (72°F)
Chance of Rain
33%
Precipitation
94 mm (3.7 in)
Rainy days
10 days
Humidity
71% *
Sunshine
226 hours *
Percentage Sunshine
60% *
* Data from: Chicago, the United States of America (55 KM, 34 Miles).
Winthrop Harbor Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Winthrop Harbor - and find the best time to visit.
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Winthrop Harbor in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Winthrop Harbor in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Barbeque8/10 -
Camping8/10 -
Outdoor sports9/10
Winthrop Harbor 3-Day Forecast
More climate data for Winthrop Harbor
Temperature Rainfall Sunshine Humidity
See the full Winthrop Harbor climate overview or explore weather in the United States of America.
Popular in September
Where to go in September - average daytime high across popular destinations.
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