Weekly swim report · August 21, 2026
Delaware swim report
On August 21, 2026 the warmest USGS water reading in Delaware was 83°F at C AND D CANAL NR DELAWARE CITY, DE; no water-related NWS hazards are active.
Warmest water
The 5 warmest of 22 sensors reporting a water temperature in Delaware today. Station names open the official monitoring page.
- #1C AND D CANAL NR DELAWARE CITY, DEUSGS gauge · 14,400 ft³/s83°F 28°C9 hrs ago
- #2MILLSBORO POND OUTLET AT MILLSBORO, DEUSGS gauge · 52 ft³/s82°F 28°C9 hrs ago
- #3BROADKILL RIVER NEAR MILTON, DEUSGS gauge82°F 28°C8 hrs ago
- #4Delaware River at Reedy Island Jetty, DEUSGS gauge82°F 28°C8 hrs ago
- #581°F 27°C8 hrs ago
Active hazards in Delaware
No water-related NWS hazards are active in Delaware right now. Checked live against the National Weather Service alert feed.
Where to swim in Delaware
The most-reviewed, well-rated water destinations in Delaware — check each one’s live conditions before you go.
4.6(9,003)Rehoboth Beach
Known as the "Nation's Summer Capital," Rehoboth Beach is a charming one-square-mile coastal city in Sussex County, Delaware. Its mile-long boardwalk, clean shoreline, and family-friendly attractions like Funland amusement park and Thrasher's French Fries have drawn visitors since the 1870s. The beach earned a 5-star NRDC water quality rating and swells from 1,500 residents to over 25,000 in peak summer, offering tax-free shopping, diverse dining, and easy access to Cape Henlopen State Park.
4.7(4,766)Savannah Beach
Public beach with shallow water & restrooms, attracting families for swimming, fishing & boating.
4.7(3,435)Lums Pond State Park
1,790-acre preserve featuring freshwater pond, multipurpose trails, fishing, boat rentals & more.
4.7(3,230)Rehoboth Beach Boardwalk
This mile-long waterfront boardwalk offers a charming, relaxed alternative to larger Jersey Shore and Ocean City boardwalks. Funland amusement park has thrilled families since 1962 with retro rides and a haunted mansion, while Thrasher's French Fries, Dolle's Candyland (since 1926), and Grotto's Pizza are boardwalk institution staples. Free summer concerts at the Rehoboth Beach Bandstand, tax-free Delaware shopping, and plenty of ocean-view benches complete the experience.
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Conditions are for general information only and can change quickly. Always judge the water in person and follow posted advisories and local guidance before swimming or paddling.