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

69.0

°F

September 30, 04:35

Trend:

stable

Yesterday:

68.6°F

Tomorrow:

68.3°F

Sunrise:

07:01

Sunset:

18:51

Day Length:

11 h. 50 min.

Annapolis in October

Minimum:

33.4°F

Average:

39.3°F

Maximum:

43.7°F

Sea water temperature in Annapolis today

As of now, in Annapolis, the water temperature is 69.0°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 3.4°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 considerably 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 75.1°F on 2019, while the historical minimum was 69.0°F on 2023.

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 shows a gradual cooling trend. The average temperature is expected to be 67.4°F, the minimum temperature may reach 66.8°F, and the maximum might stay at 68.3°F.

Daily water temperature in Annapolis

Date Current Year

actual* / forecast**

last year 10 years average
Sep 16 78.5°F 75.4°F 76.5°F
Sep 17 77.8°F 74.0°F 76.2°F
Sep 18 78.5°F 72.4°F 75.7°F
Sep 19 78.3°F 72.8°F 75.7°F
Sep 20 77.9°F 74.2°F 75.7°F
Sep 21 77.7°F 73.8°F 75.5°F
Sep 22 77.0°F 73.1°F 75.3°F
Sep 23 74.9°F 72.6°F 74.9°F
Sep 24 71.8°F 73.1°F 73.8°F
Sep 25 69.3°F 73.9°F 73.1°F
Sep 26 68.3°F 74.1°F 72.8°F
Sep 27 68.5°F 74.8°F 72.6°F
Sep 28 68.5°F 74.5°F 72.4°F
Sep 29 68.6°F 74.5°F 72.4°F
Sep 30 69.0°F 74.2°F 72.4°F
Oct 1 68.3°F 73.8°F 71.7°F
Oct 2 67.7°F 72.6°F 71.1°F
Oct 3 67.5°F 72.0°F 70.9°F
Oct 4 67.3°F 71.6°F 70.7°F
Oct 5 67.3°F 71.3°F 70.7°F
Oct 6 67.1°F 71.5°F 70.4°F
Oct 7 66.8°F 71.8°F 70.2°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 Annapolis by month

In Annapolis, the months June through September offer comfortable swimming conditions, which amounts to 104 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 70.1°F 22mi
Long Beach 69.4°F 36mi
Delaware City 67.9°F 64mi
Wilmington 67.5°F 73mi

* current water temperature in this city

** straight line distance from Annapolis