Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Delaware City Weather in September
September in Delaware City averages 26°C (79°F) during the day and 16°C (61°F) at night. Quite a bit of rainfall is typical this month, with around 110 mm (4.3 in) on average. An umbrella is a good idea.
Rainfall in Delaware City in September
Looking at the last 30 years, the data shows about 9 days with rain, averaging 110 mm (4.3 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Delaware City in September
September in Delaware City brings typical temperatures with highs around 26°C (79°F) and lows of 16°C (61°F). This kind of day-to-night contrast is typical for this time of year. With overnight lows of 16°C (61°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 Delaware City in September
There are approximately 218 hours of sunshine this month, resulting in mostly clear days.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May typically offers the best weather for Delaware City.
Delaware City Temperature in September
Min Temperature
16°C (61°F)
Max Temperature
26°C (79°F)
Chance of Rain
29%
Precipitation
110 mm (4.3 in)
Rainy days
9 days
Humidity
72% *
Sunshine
218 hours *
Percentage Sunshine
59% *
* Data from: Philadelphia, the United States of America (55 KM, 34 Miles).
Delaware City Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Delaware City - 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 Delaware City in September
Warm but pleasant conditions in Delaware City in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Delaware City in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
Delaware City 3-Day Forecast
More climate data for Delaware City
Temperature Rainfall Sunshine Humidity
See the full Delaware City 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.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
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