Delaware Water Temperatures
Current lake & river temperatures in Delaware — updated daily from USGS sensors.
Delaware — Ranked by Temperature
23 with data| # | Water Body | °F | °C | Condition | 🏊 | Date |
|---|---|---|---|---|---|---|
| 1 | C And D Canal Nr Delaware City, De River | 81.9° | 27.7° | ☀️ Warm | 🏊 Excellent | Jul 27 |
| 2 | Millsboro Pond Outlet At Millsboro, De Lake | 81.3° | 27.4° | ☀️ Warm | 🏊 Excellent | Jul 27 |
| 3 | Delaware River At Del Mem Bridge At Wilmington De River | 81° | 27.2° | ☀️ Warm | 🏊 Excellent | Jul 27 |
| 4 | Christina River At Wilmington, De River | 80.4° | 26.9° | ☀️ Warm | 🏊 Excellent | Jul 27 |
| 5 | Murderkill River At Frederica, De River | 79.5° | 26.4° | ☀️ Warm | ✅ Good | Jul 27 |
| 6 | Broadkill River Near Milton, De River | 79.2° | 26.2° | ☀️ Warm | ✅ Good | Jul 27 |
| 7 | St Jones River At Dover, De River | 78.8° | 26° | ☀️ Warm | ✅ Good | Jul 27 |
| 8 | Brandywine Creek At Wilmington, De River | 77.9° | 25.5° | ☀️ Warm | ✅ Good | Jul 20 |
| 9 | East Poplar River At International Boundary River | 77.5° | 25.3° | ☀️ Warm | ✅ Good | Jul 26 |
| 10 | White Clay Creek At Stanton, De River | 75.6° | 24.2° | ☀️ Warm | ✅ Good | Jul 27 |
| 11 | White Clay Creek Near Newark, De River | 75° | 23.9° | ☀️ Warm | ✅ Good | Jul 27 |
| 12 | White Clay Creek At Newark, De River | 74.8° | 23.8° | 🌤️ Comfortable | ✅ Good | Jul 27 |
| 13 | Red Clay Creek At Wooddale, De River | 74.3° | 23.5° | 🌤️ Comfortable | ✅ Good | Jul 27 |
| 14 | Bucks Branch Ds Of Conrail Rd At Cannon, De Lake | 73° | 22.8° | 🌤️ Comfortable | ✅ Good | Jul 27 |
| 15 | St Jones River At Lebanon, De River | 73° | 22.8° | 🌤️ Comfortable | ✅ Good | May 19 |
| 16 | Christina River At Coochs Bridge, De River | 72.5° | 22.5° | 🌤️ Comfortable | ✅ Good | Jul 27 |
| 17 | St Jones River Near Magnolia, De River | 71.4° | 21.9° | 🌤️ Comfortable | ⚠️ Brisk | May 19 |
| 18 | Pike Creek Near Newark, De River | 70.7° | 21.5° | 🌤️ Comfortable | ⚠️ Brisk | Jul 27 |
| 19 | Nanticoke River Near Bridgeville, De River | 68.7° | 20.4° | 🌤️ Comfortable | ⚠️ Brisk | Sep 29 |
| 20 | Beaverdam Branch At Houston, De Reservoir | 68° | 20° | 🌤️ Comfortable | ⚠️ Brisk | Jul 27 |
| 21 | Silver Lake Tributary At Middletown, De Lake | 65.5° | 18.6° | 🌤️ Comfortable | ⚠️ Brisk | Jul 27 |
| 22 | Murderkill River At Bowers, De River | 61.3° | 16.3° | 🌊 Cool | 🚫 Cold | May 3 |
| 23 | Christina River At Newport, De River | 46.9° | 8.3° | ❄️ Cold | ⛔ Very cold | Feb 28 |
| 24 | Delaware River At New Castle, De River | — | — | — | — | — |
| 25 | Assawoman Canal At Central Ave At Ocean View, De River | — | — | — | — | — |
More Delaware Resources
❓ Delaware Water Temperature FAQ
What is the warmest lake in Delaware today?
Based on our latest USGS data, C And D Canal Nr Delaware City, De is currently the warmest water body in Delaware at 81.9°F.
Which Delaware lakes are good for swimming right now?
Lakes with water temperatures above 72°F are generally comfortable for swimming. Delaware averages 73.4°F, making most water bodies suitable for swimming right now.
What is the best water temperature for fishing in Delaware?
The optimal temperature range depends on your target species. For bass fishing, look for water bodies between 65–75°F. For trout, target the coldest water bodies in Delaware — typically 50–65°F. Use the table above to identify which lakes are in the ideal range for your target species.
🔬 Data Methodology & Sources
Water temperature readings on this site are collected from USGS (United States Geological Survey) monitoring stations installed at lakes, rivers, and reservoirs across the country. Sensors measure water surface temperature in Celsius, which is converted to Fahrenheit for display. Data is retrieved and stored daily. Temperatures shown reflect the most recent available sensor reading for each water body, typically from the past 1–30 days depending on station reporting frequency.
⚠️ Water temperatures can vary significantly across a water body due to depth, currents, and time of day. Sensor readings represent conditions at the monitoring station location. Always exercise caution when swimming and consult local authorities for official safety advisories.