All data are in degrees Fahrenheit

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Water temperature in Annapolis

Detailed information about the current water temperature in Annapolis. 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 Annapolis now

80.8

°F

July 14, 18:31

Trend:

stable

Yesterday:

81.0°F

Tomorrow:

81.0°F

Sunrise:

05:52

Sunset:

20:31

Day Length:

14 h. 39 min.

Annapolis in July

Minimum:

35.1°F

Average:

40.3°F

Maximum:

43.5°F

Sea water temperature in Annapolis today

As of now, in Annapolis, the water temperature is 80.8°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 0.8°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 rise 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 also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 84.4°F on 2025, while the historical minimum was 79.4°F on 2016.

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 suggests a gradual increase. The average temperature is expected to rise up to 81.8°F, with minimum temperature starting at 81.0°F, while the maximum might reach 82.2°F.

Daily water temperature in Annapolis

Date Current Year

actual* / forecast**

last year 10 years average
Jun 30 77.2°F 81.3°F 77.9°F
Jul 1 78.1°F 82.2°F 78.9°F
Jul 2 79.0°F 82.0°F 79.0°F
Jul 3 80.7°F 81.7°F 79.3°F
Jul 4 83.1°F 82.4°F 79.7°F
Jul 5 84.7°F 81.9°F 80.3°F
Jul 6 84.4°F 82.3°F 80.7°F
Jul 7 83.2°F 82.6°F 81.2°F
Jul 8 82.6°F 82.7°F 80.9°F
Jul 9 82.5°F 83.7°F 81.1°F
Jul 10 81.9°F 84.2°F 81.0°F
Jul 11 81.7°F 82.6°F 80.7°F
Jul 12 81.7°F 83.1°F 80.8°F
Jul 13 81.0°F 84.2°F 81.0°F
Jul 14 80.8°F 84.4°F 81.6°F
Jul 15 81.0°F 84.0°F 81.9°F
Jul 16 81.4°F 84.1°F 82.2°F
Jul 17 81.7°F 84.2°F 82.5°F
Jul 18 82.0°F 84.7°F 82.8°F
Jul 19 82.0°F 84.5°F 82.9°F
Jul 20 82.2°F 84.1°F 83.1°F
Jul 21 82.2°F 83.9°F 83.1°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 Annapolis by month

In Annapolis, the months June through September offer comfortable swimming conditions, which amounts to 105 swimming days.
The warmest water in Annapolis was recorded on July 22, 2019, reaching a 87.1°F. While the coldest temperature occurred on January 19, 2018, dipping to 32.0°F. The average readings by season are 40.5°F in Winter, 54.3°F in Spring, 78.9°F in Summer, and 66.1°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Baltimore 79.9°F 22mi
Long Beach 81.5°F 36mi
Delaware City 80.8°F 64mi
Wilmington 78.4°F 73mi

* current water temperature in this city

** straight line distance from Annapolis