What is the current water temperature in Delaware City?

Q: What is the current water temperature in Delaware City?

As of now, in Delaware City, the water temperature is 2.74°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.

United States > Delaware City

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.

36.9

°F

January 14, 23:45

Trend:

decreasing

Yesterday:

37.3°F

Tomorrow:

36.6°F

Sunrise:

07:22

Sunset:

17:02

Day Length:

9 h. 40 min.

Delaware City in January

Minimum:

34.9°F

Average:

40.1°F

Maximum:

44.0°F

Sea water temperature in Delaware City today

As of now, in Delaware City, the water temperature is 36.9°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 1.6°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 fall a bit.

Recent sea temperature and forecast

Today's reading indicates a minor change compared to the average water temperature of the last two weeks, but the overall trend remains steady. 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 42.2°F on 2024, while the historical minimum was 34.3°F on 2025.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 35.8°F, the minimum temperature may reach 35.0°F, and the maximum might stay at 36.6°F.

Daily water temperature in Delaware City

Date	Current Year actual* / forecast**	last year	10 years average
Jan 1	37.9°F	41.8°F	40.1°F
Jan 2	37.5°F	41.8°F	40.3°F
Jan 3	37.3°F	41.6°F	40.1°F
Jan 4	37.1°F	41.0°F	39.7°F
Jan 5	36.9°F	40.2°F	39.6°F
Jan 6	35.4°F	39.3°F	39.5°F
Jan 7	35.2°F	39.1°F	39.5°F
Jan 8	36.9°F	37.7°F	39.5°F
Jan 9	36.0°F	35.7°F	39.0°F
Jan 10	36.2°F	35.3°F	38.9°F
Jan 11	35.9°F	35.4°F	39.1°F
Jan 12	38.0°F	35.4°F	39.0°F
Jan 13	37.3°F	35.4°F	38.9°F
Jan 14	36.9°F	34.3°F	38.5°F
Jan 15	36.6°F	34.4°F	38.2°F
Jan 16	36.0°F	33.9°F	37.5°F
Jan 17	36.4°F	33.4°F	37.9°F
Jan 18	36.0°F	33.1°F	37.6°F
Jan 19	35.8°F	33.7°F	37.4°F
Jan 20	35.1°F	32.9°F	36.7°F
Jan 21	35.0°F	33.4°F	36.6°F
Dec 31	39.0°F	41.8°F	40.2°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 96 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, 52.7°F in Spring, 77.8°F in Summer, and 64.9°F in Autumn.