Weather & Climate of Southern Delaware
Winter in Southern DE
Timeframe
- December to March (temperatures range from 20s to 50s)
What it’s like
- Typically not much snow, some rain and sleet, relatively mild
- Low humidity, with colder temperatures inland than near the coast
- Windy near the end of winter, with migrating birds and budding flowers
Expectations of a typical winter day
- Shorter days, gray skies with some sun, wear layers
Average volume of visitors
- Lower-than-average, especially at the beach
Spring in Southern DE
Timeframe
- March to June (temperatures range from 30s to 80s)
What it’s like
- Rare snow and increasing rain, with thunderstorms late in the season
- Freezing and thawing early on, consistently pleasant by May
- Ideal for outdoor exploration—horseshoe crabs begin to line the shore
Expectations of a typical spring day
- Increased sunshine and warmer, longer days, carry a raincoat
Average volume of visitors
- Increased tourism, though beach conditions vary
Summer in Southern DE
Timeframe
- June to September (temperatures range from 60s to 90s)
What it’s like
- Increased precipitation and humidity, thunderstorms abound
- Long days and lots of sunshine, perfect for outdoor recreation
- Late summer days grow mild and partly cloudy, rain continues
Expectations of a typical summer day
- Sunny, hot, and humid, wear sunscreen
Average volume of visitors
- Maximum volume – beaches and towns at full capacity
Fall in Southern DE
Timeframe
- September to December (temperatures range from 70s to 30s)
What it’s like
- Comfortable, with mild temperatures becoming crisp late in the season
- Lower humidity, less sunshine, very small chance of snow
- Fall festivals abound, enjoy changing leaves and gentle breezes
Expectations of a typical fall day
- Cool, cloudy, and cozy, consider a jacket or sweater
Average volume of visitors
- Dwindling crowds, though beach conditions remain fair
