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

67.4

°F

June 11, 05:30

Trend:

stable

Yesterday:

66.7°F

Tomorrow:

67.2°F

Sunrise:

05:34

Sunset:

20:30

Day Length:

14 h. 56 min.

Delaware City in June

Minimum:

34.1°F

Average:

39.9°F

Maximum:

43.2°F

Sea water temperature in Delaware City today

As of now, in Delaware City, the water temperature is 67.4°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 4.4°F lower 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 minimum temperature for this date. The maximum temperature recorded for this date was 74.6°F on 2021, while the historical minimum was 68.0°F on 2017.

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 68.3°F, with minimum temperature starting at 67.2°F, while the maximum might reach 69.2°F.

Daily water temperature in Delaware City

Date Current Year

actual* / forecast**

last year 10 years average
May 28 63.6°F 69.9°F 66.1°F
May 29 63.9°F 71.3°F 67.1°F
May 30 64.1°F 70.3°F 66.9°F
May 31 64.1°F 71.1°F 66.9°F
Jun 1 63.2°F 71.3°F 68.2°F
Jun 2 64.5°F 70.9°F 68.7°F
Jun 3 64.1°F 72.0°F 68.8°F
Jun 4 64.4°F 74.1°F 69.5°F
Jun 5 67.1°F 72.0°F 69.8°F
Jun 6 62.7°F 72.2°F 69.8°F
Jun 7 67.2°F 74.4°F 70.7°F
Jun 8 67.5°F 74.0°F 71.0°F
Jun 9 67.3°F 74.6°F 70.9°F
Jun 10 66.7°F 74.0°F 71.2°F
Jun 11 67.4°F 74.6°F 71.9°F
Jun 12 67.2°F 73.9°F 71.6°F
Jun 13 67.7°F 74.9°F 72.1°F
Jun 14 68.4°F 74.0°F 72.8°F
Jun 15 68.8°F 75.1°F 73.2°F
Jun 16 68.6°F 75.9°F 73.0°F
Jun 17 68.7°F 76.3°F 73.2°F
Jun 18 69.2°F 77.0°F 73.6°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 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.