All data are in degrees Fahrenheit

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Water temperature in Delaware City

Detailed information about the current water temperature in Delaware City. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Delaware City now

81.6

°F

July 20, 00:08

Trend:

increasing

Yesterday:

81.6°F

Tomorrow:

81.6°F

Sunrise:

05:51

Sunset:

20:26

Day Length:

14 h. 35 min.

Delaware City in July

Minimum:

33.9°F

Average:

39.5°F

Maximum:

42.6°F

Sea water temperature in Delaware City today

As of now, in Delaware City, the water temperature is 81.6°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 0.6°F lower than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 85.1°F on 2024, while the historical minimum was 79.2°F on 2016.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 81.2°F, the minimum temperature may reach 80.4°F, and the maximum might stay at 81.8°F.

Daily water temperature in Delaware City

Date Current Year

actual* / forecast**

last year 10 years average
Jul 6 81.2°F 79.9°F 79.2°F
Jul 7 81.9°F 80.7°F 79.9°F
Jul 8 78.9°F 82.3°F 79.8°F
Jul 9 80.4°F 81.3°F 80.0°F
Jul 10 81.3°F 81.0°F 80.0°F
Jul 11 79.0°F 80.5°F 80.1°F
Jul 12 78.8°F 82.2°F 80.4°F
Jul 13 80.3°F 81.8°F 80.7°F
Jul 14 80.8°F 81.4°F 80.6°F
Jul 15 80.7°F 82.5°F 80.7°F
Jul 16 81.9°F 83.1°F 81.4°F
Jul 17 82.4°F 82.5°F 81.5°F
Jul 18 81.0°F 83.9°F 81.4°F
Jul 19 81.6°F 85.0°F 82.2°F
Jul 20 81.6°F 83.8°F 82.2°F
Jul 21 81.6°F 84.1°F 82.3°F
Jul 22 81.8°F 84.6°F 82.5°F
Jul 23 81.8°F 83.7°F 82.4°F
Jul 24 81.2°F 82.2°F 81.8°F
Jul 25 80.7°F 81.3°F 81.3°F
Jul 26 80.4°F 82.6°F 81.1°F
Jul 27 81.0°F 82.6°F 81.6°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Delaware City by month

In Delaware City, the months July through September offer comfortable swimming conditions, which amounts to 97 swimming days.
The warmest water in Delaware City was recorded on July 12, 2024, reaching a 86.5°F. While the coldest temperature occurred on January 24, 2025, dipping to 32.0°F. The average readings by season are 39.4°F in Winter, 52.9°F in Spring, 77.9°F in Summer, and 64.9°F in Autumn.