Annapolis — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Annapolis (Maryland, United States). It includes the current water temperature, daily data for the last month presented in a simple chart, and a 7-day forecast. The page also compares today’s value with typical averages for this period, shows usual monthly ranges during the year, and lists nearby beaches with short descriptions. Local weather for the next few days and general details about Annapolis help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Annapolis in the Atlantic Ocean today is 24°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 75°F (23°C) to 79°F (26°C). This is a very comfortable temperature for swimming, and many people can enjoy prolonged stays in the water without feeling cold. The water is pleasantly warm, making it ideal for relaxation and water sports. This temperature range is particularly popular among tourists, as it combines comfort and safety for health.
It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart Over the Last 30 Days
Water temperature in Annapolis has risen over the last week and month. Currently, the sea water at this location is slightly warmer than average for this day in previous years.
According to our forecast, Water temperature in Annapolis will be 23.5°C in the next 7 days. See the table below for daily data for the upcoming week.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUN 4 | 20.9°C | 20.5°C | |
| JUN 5 | 21.0°C | 21.3°C | |
| JUN 6 | 21.4°C | 22.3°C | |
| JUN 7 | 21.7°C | 22.0°C | |
| JUN 8 | 21.8°C | 23.0°C | |
| JUN 9 | 22.6°C | 23.3°C | |
| JUN 10 | 24.1°C | 22.8°C | |
| JUN 11 | 23.5°C | 22.0°C | |
| JUN 12 | 24.3°C | 22.0°C | 24.3°C |
| JUN 13 | 22.3°C | 24.2°C | |
| JUN 14 | 22.5°C | 24.1°C | |
| JUN 15 | 22.5°C | 24.0°C | |
| JUN 16 | 22.5°C | 23.9°C | |
| JUN 17 | 22.5°C | 23.8°C | |
| JUN 18 | 22.8°C | 23.6°C | |
| JUN 19 | 22.8°C | 23.5°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Water temperature data for this location is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Annual Water Temperature Overview by Month
Monthly Water Temp Ranges
Annual Water Temperature Trend
Annapolis sits on the western shore of the Chesapeake Bay and experiences marked seasonal variation in bay surface temperatures. In winter months the water typically cools to around 1–6 °C, with the coldest periods occasionally approaching freezing in sheltered areas. Spring sees a gradual rise, with March through May averages commonly between 5 and 15 °C as the bay responds to warming air temperatures. By summer, surface water usually reaches its warmest, often ranging from about 20 to 27 °C in July and August, which is the prime window for most open-water activities. During autumn the bay begins to cool again, with September and October averages generally between 10 and 20 °C, though warm spells can temporarily extend swimming-friendly conditions into October.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 2°C | 6°C | 11°C |
| February | 1°C | 6°C | 9°C |
| March | 4°C | 8°C | 11°C |
| April | 7°C | 12°C | 17°C |
| May | 10°C | 16°C | 23°C |
| June | 17°C | 22°C | 28°C |
| July | 22°C | 27°C | 30°C |
| August | 24°C | 27°C | 30°C |
| September | 20°C | 24°C | 29°C |
| October | 15°C | 20°C | 24°C |
| November | 8°C | 13°C | 18°C |
| December | 3°C | 7°C | 14°C |
* Click on a month to view detailed water temperature data.
Annapolis: Weather Forecast
June 14
June 15
June 16
June 17
Location, Beaches & Local Information
Nearby Beaches & Facilities
North Severn Beach
Severn Beach
Jonas And Anne Catharine Green Park
Carrs Beach
Sparrows Beach
Wild Rose Shores
Quiet Waters Park
Quiet Waters Dog Beach
Hillsmere Shores Community Beach
Swimming Conditions
Swimming and beach holiday opportunities around Annapolis center on a mix of public parks, marinas and nearby state beaches that provide access to the Chesapeake’s sheltered waters. Sandy Point State Park and other shoreline areas offer designated swimming zones, seasonal lifeguards at some locations, picnic facilities and shallow areas suitable for families when temperatures are favorable. The city also supports organized swim clubs, public pools and boating-centric recreation such as kayaking and paddleboarding for cooler days. Visitors should be mindful of tides, boat traffic and occasional water-quality advisories or jellyfish blooms that can affect comfort and safety. For most bathers, the most comfortable and reliable time to plan a beach holiday is from late June through early September when surface temperatures are regularly above 20 °C.