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

83.3

°F

August 11, 22:05

Trend:

stable

Yesterday:

81.5°F

Tomorrow:

82.9°F

Sunrise:

06:11

Sunset:

20:04

Day Length:

13 h. 53 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 83.3°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 2.3°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable 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 83.9°F on 2022, while the historical minimum was 77.6°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 minimum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 83.0°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Delaware City

Date Current Year

actual* / forecast**

last year 10 years average
Jul 28 77.8°F 81.8°F 81.4°F
Jul 29 80.0°F 83.0°F 81.6°F
Jul 30 79.0°F 84.0°F 81.6°F
Jul 31 80.1°F 84.8°F 81.8°F
Aug 1 79.5°F 85.0°F 81.7°F
Aug 2 79.2°F 84.0°F 81.5°F
Aug 3 79.6°F 82.7°F 81.0°F
Aug 4 80.3°F 82.1°F 81.2°F
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 78.3°F 81.1°F
Aug 12 82.9°F 78.9°F 80.6°F
Aug 13 83.4°F 81.1°F 81.1°F
Aug 14 83.0°F 80.3°F 80.7°F
Aug 15 83.4°F 81.2°F 81.1°F
Aug 16 83.1°F 81.4°F 80.8°F
Aug 17 82.8°F 81.7°F 80.5°F
Aug 18 82.6°F 81.8°F 80.3°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.