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

51.2

°F

April 18, 00:58

Trend:

decreasing

Yesterday:

51.2°F

Tomorrow:

51.0°F

Sunrise:

06:21

Sunset:

19:43

Day Length:

13 h. 22 min.

Delaware City in April

Minimum:

35.6°F

Average:

39.8°F

Maximum:

43.7°F

Sea water temperature in Delaware City today

As of now, in Delaware City, the water temperature is 51.2°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 2.8°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 fall a bit.

Recent sea temperature and forecast

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 59.3°F on 2023, while the historical minimum was 50.5°F on 2018.

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 suggests a gradual increase. The average temperature is expected to rise up to 52.3°F, with minimum temperature starting at 51.0°F, while the maximum might reach 53.2°F.

Daily water temperature in Delaware City

Date Current Year

actual* / forecast**

last year 10 years average
Apr 4 52.1°F 48.4°F 48.7°F
Apr 5 51.9°F 48.5°F 49.1°F
Apr 6 51.8°F 48.1°F 49.3°F
Apr 7 51.5°F 47.8°F 49.8°F
Apr 8 51.6°F 48.4°F 50.0°F
Apr 9 53.1°F 48.3°F 50.1°F
Apr 10 52.4°F 48.3°F 50.6°F
Apr 11 52.1°F 48.3°F 50.3°F
Apr 12 51.9°F 48.3°F 50.7°F
Apr 13 51.7°F 51.7°F 51.4°F
Apr 14 51.1°F 51.8°F 51.7°F
Apr 15 51.1°F 53.2°F 53.0°F
Apr 16 52.0°F 56.0°F 53.4°F
Apr 17 51.2°F 55.2°F 54.0°F
Apr 18 51.2°F 55.1°F 53.9°F
Apr 19 51.0°F 54.8°F 53.8°F
Apr 20 51.2°F 54.8°F 53.9°F
Apr 21 52.1°F 56.4°F 54.9°F
Apr 22 52.6°F 53.3°F 55.3°F
Apr 23 53.0°F 56.2°F 55.7°F
Apr 24 52.9°F 56.4°F 55.7°F
Apr 25 53.2°F 56.7°F 56.0°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 98 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 39.6°F in Winter, 52.4°F in Spring, 77.6°F in Summer, and 64.8°F in Autumn.