Marco — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Marco (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 Marco help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Marco in the Gulf of America today is 29°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 Marco rose over the last 30 days but fell over the last week. Currently, the sea water temperature at this location matches the average for this day in previous years.
According to our forecast, Water temperature in Marco will be 28.8°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 1 | 29.3°C | 29.3°C | |
| JUN 2 | 29.6°C | 29.0°C | |
| JUN 3 | 29.5°C | 29.0°C | |
| JUN 4 | 29.8°C | 29.0°C | |
| JUN 5 | 29.8°C | 28.8°C | |
| JUN 6 | 29.7°C | 28.5°C | |
| JUN 7 | 29.6°C | 28.5°C | |
| JUN 8 | 29.5°C | 28.5°C | |
| JUN 9 | 28.7°C | 28.5°C | 28.7°C |
| JUN 10 | 28.5°C | 28.7°C | |
| JUN 11 | 28.5°C | 28.7°C | |
| JUN 12 | 28.8°C | 28.7°C | |
| JUN 13 | 28.5°C | 28.7°C | |
| JUN 14 | 28.8°C | 28.8°C | |
| JUN 15 | 29.0°C | 28.8°C | |
| JUN 16 | 28.8°C | 28.8°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
Marco, on Florida’s Gulf Coast, enjoys warm coastal waters for much of the year, with sea surface temperatures that change moderately by season. Winter water temperatures typically range from about 18 °C to 23 °C, cooling most in January and February. In spring, the sea warms to roughly 22 °C to 27 °C as air temperatures rise. Summer brings the warmest conditions, with surface temperatures often between 27 °C and 31 °C through June to August. In autumn the water usually remains comfortable, generally sitting around 25 °C to 29 °C, as the Gulf retains heat longer than inland areas. Local factors like tides, onshore winds and occasional weather events can shift surface readings day to day.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 15°C | 19°C | 23°C |
| February | 16°C | 21°C | 24°C |
| March | 18°C | 22°C | 26°C |
| April | 22°C | 25°C | 28°C |
| May | 24°C | 27°C | 31°C |
| June | 26°C | 29°C | 31°C |
| July | 28°C | 30°C | 33°C |
| August | 28°C | 31°C | 33°C |
| September | 28°C | 30°C | 32°C |
| October | 24°C | 28°C | 31°C |
| November | 21°C | 25°C | 28°C |
| December | 18°C | 22°C | 26°C |
* Click on a month to view detailed water temperature data.
Marco: Weather Forecast
June 10
June 11
June 12
June 13
Location, Beaches & Local Information
Nearby Beaches & Facilities
Tigertail Beach
Keewaydin Island Beach
Residents Beach
Marco Island Beach
Swimming Conditions
Swimming and beach holidays in Marco are popular thanks to long sandy shores, shallow coastal shelves and generally calm Gulf waters that suit families and casual swimmers. During the warm months, swimming and snorkeling are especially pleasant because of the higher temperatures and clearer visibility in many spots; no thermal protection is needed for most visitors. In winter the water can feel cool to some, so shorter swims or wetsuits may be preferred by those sensitive to lower temperatures. Beach amenities, boat-accessible sandbars and nearby nature areas offer varied seaside activities, though swimmers should remain aware of local advisories and changing surf or water-quality notices that occasionally affect access.