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

82.7

°F

August 19, 02:15

Trend:

stable

Yesterday:

82.4°F

Tomorrow:

82.1°F

Sunrise:

06:18

Sunset:

19:53

Day Length:

13 h. 35 min.

Delaware City in August

Minimum:

33.7°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 82.7°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. Today's reading is 2.1°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 83.1°F on 2016, while the historical minimum was 77.5°F on 2017.

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 maximum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 81.6°F, the minimum temperature may reach 81.1°F, and the maximum might stay at 82.3°F.

Daily water temperature in Delaware City

Date Current Year

actual* / forecast**

last year 10 years average
Aug 5 80.4°F 81.4°F 81.3°F
Aug 6 80.7°F 81.4°F 81.1°F
Aug 7 80.8°F 81.2°F 81.1°F
Aug 8 81.3°F 78.5°F 81.2°F
Aug 9 81.9°F 78.0°F 80.8°F
Aug 10 81.5°F 77.9°F 80.7°F
Aug 11 83.3°F 78.6°F 81.3°F
Aug 12 81.7°F 78.9°F 80.7°F
Aug 13 81.3°F 81.1°F 81.1°F
Aug 14 82.5°F 80.3°F 80.9°F
Aug 15 79.8°F 81.2°F 80.9°F
Aug 16 82.1°F 81.4°F 80.9°F
Aug 17 82.7°F 81.7°F 80.7°F
Aug 18 82.4°F 81.8°F 80.3°F
Aug 19 82.7°F 82.3°F 80.6°F
Aug 20 82.1°F 81.6°F 80.0°F
Aug 21 82.3°F 80.9°F 80.2°F
Aug 22 81.6°F 76.5°F 79.5°F
Aug 23 81.3°F 76.8°F 79.2°F
Aug 24 81.7°F 77.4°F 79.6°F
Aug 25 81.3°F 77.1°F 79.2°F
Aug 26 81.1°F 77.1°F 79.0°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.