Marco Island Beach Water Temperature
Sea-surface temperature at Marco Island Beach, Florida · times in EDT
Updated 4:00 AM EDT
How it compares today
Water temperature through the year
Monthly normals computed from 2023–2025 daily sea-surface temperature history.
Nearby water right now
7-day outlook
| Day | Air high / low | Max UV | Rain |
|---|---|---|---|
| Tue, Oct 13 | 90° / 72° | 7 | 0% |
| Wed, Oct 14 | 91° / 70° | 7 | 21% |
| Thu, Oct 15 | 92° / 75° | 7 | 71% |
| Fri, Oct 16 | 91° / 77° | 7 | 57% |
| Sat, Oct 17 | 81° / 74° | 2 | 55% |
| Sun, Oct 18 | 80° / 73° | 4 | 61% |
| Mon, Oct 19 | 89° / 73° | 7 | 58% |
Sea-surface temperature and wave data from the Open-Meteo marine model; weather from Open-Meteo.
Is Marco Island Beach warm enough to swim?
At 85°F, the water at Marco Island Beach is warm — great for swimming. Most swimmers are comfortable without a wetsuit above 72°F; below 62°F, cold-water shock becomes a real risk for unprotected swimmers.
That is 3° above the October average of 82°F here.
The water stays above 70°F essentially year round, ranging from about 68°F to 89°F.
Frequently asked questions
How warm is the water at Marco Island Beach right now?
The sea-surface temperature is about 85°F. That is 3° above the October average of 82°F here.
When is the water warm enough to swim at Marco Island Beach?
The water stays above 70°F essentially year round, ranging from about 68°F to 89°F.
What is the warmest the water gets at Marco Island Beach?
Around 89°F in July, based on 2023–2025 records. The coolest month is January at roughly 68°F.