Miami — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Miami (Florida, 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 Miami help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Miami in the Atlantic Ocean today is 31°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature is above 82°F (28°C). This is very warm water, which may feel almost hot to most people. Swimming in such conditions is perfect for those seeking relaxation and comfort in the water. These waters are often preferred for relaxation in hot weather, as the water temperature does not cool the body significantly. However, it is important to remember that in such warm waters, caution is necessary, as prolonged exposure without rest can lead to overheating.
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 Miami 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 Miami will be 30.8°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 19 | 30.1°C | 29.3°C | |
| JUN 20 | 29.9°C | 29.8°C | |
| JUN 21 | 30.3°C | 29.5°C | |
| JUN 22 | 30.3°C | 29.5°C | |
| JUN 23 | 30.1°C | 29.5°C | |
| JUN 24 | 30.2°C | 29.5°C | |
| JUN 25 | 30.7°C | 29.5°C | |
| JUN 26 | 30.5°C | 29.0°C | |
| JUN 27 | 30.7°C | 29.0°C | 30.7°C |
| JUN 28 | 28.5°C | 30.7°C | |
| JUN 29 | 28.8°C | 30.7°C | |
| JUN 30 | 28.5°C | 30.7°C | |
| JUL 1 | 30.3°C | 30.7°C | |
| JUL 2 | 29.8°C | 30.8°C | |
| JUL 3 | 30.5°C | 30.8°C | |
| JUL 4 | 30.5°C | 30.8°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
Miami sits on Florida’s southeastern coast and is bordered by the warm waters of the Atlantic Ocean and the sheltered Biscayne Bay. Thanks to its subtropical climate, sea surface temperatures are fairly mild year-round: winter months (December–February) typically see water around 22–24 °C, spring temperatures rise into the mid-20s °C, summer (June–September) is the warmest period with waters commonly between 28–31 °C, and autumn usually remains warm in the high 20s °C. During occasional cold snaps the temperature can dip toward 20 °C, but prolonged cool periods are uncommon. Overall, the annual seawater range is roughly 22–31 °C for most coastal spots in the Miami area.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 20°C | 23°C | 27°C |
| February | 20°C | 24°C | 27°C |
| March | 20°C | 25°C | 27°C |
| April | 23°C | 26°C | 28°C |
| May | 24°C | 27°C | 31°C |
| June | 26°C | 28°C | 31°C |
| July | 27°C | 30°C | 33°C |
| August | 27°C | 30°C | 32°C |
| September | 27°C | 30°C | 32°C |
| October | 25°C | 29°C | 31°C |
| November | 22°C | 26°C | 29°C |
| December | 22°C | 25°C | 28°C |
* Click on a month to view detailed water temperature data.
Miami: Weather Forecast
June 28
June 29
June 30
July 1
Location, Beaches & Local Information
Nearby Beaches & Facilities
Tahiti Beach
Hobie Island Beach Park
Darwin Beach
Crandon Park Beach
Virginia Key Beach Park
South Pointe Beach
Miami Beach - South Beach
1 Hotel South Beach
Key Biscayne Beach
Swimming Conditions
These temperatures make Miami a popular destination for swimming and beach holidays for much of the year. Warm summer seas are ideal for casual swimming, snorkeling, paddleboarding and other water sports, while the gentler, shallower areas of Biscayne Bay provide family-friendly conditions with calmer water. The Atlantic shoreline can offer stronger surf and rip currents at times, so swimmers should follow local advisories and lifeguards’ guidance. Water clarity and conditions can vary with seasonal weather and tropical activity, but for many visitors Miami’s sea temperatures allow comfortable bathing without heavy thermal protection throughout most months.