🏖️ Marco Island Beach Conditions — Friday, August 28, 2026

MARCO ISLAND, FL — 7:55 AM EDT

Marco Island is starting Friday with excellent beach and boating conditions: very calm Gulf waters, a low rip-current risk and no significant red-tide problem reported around Southwest Florida. The best beach window is this morning through early afternoon, before heat and thunderstorm chances increase later today. (weather.gov)

🦠 RED TIDE STATUS: 🟢 GOOD

The latest published FWC statewide report found no significant red tide bloom around Marco Island or Collier County. In Southwest Florida, Karenia brevis was detected only at background concentrations in two samples offshore of Pinellas County, well north of Marco Island.

FWC also reported no red-tide-related fish kills or respiratory irritation during the reporting period. A new statewide report is scheduled for later today, August 28, so conditions should be checked again once that update posts. (myfwc.com)

Marco Island Red Tide Risk: 🟢 LOW

💧 WATER QUALITY: 🟢 GOOD

The latest available Marco Island Beach sampling we’ve been tracking measured 10 CFU/100 mL, which falls comfortably inside Florida’s GOOD category. That sample was collected August 10, however, so it should not be considered a live reading. (marcoislandnaplesnews.com)

Florida’s Healthy Beaches program classifies enterococci results as:

🟢 Good: 0–35 CFU/100 mL
🟡 Moderate: 36–70
🔴 Poor: 71+

No current Marco Island swimming advisory surfaced in today’s check. (floridahealth.gov)

Water Quality Rating: 🟢 GOOD

🌊 GULF WATER TEMPERATURE: 🔥 VERY WARM

Current modeled sea-surface temperature near Marco Island is approximately:

🌡️ 90°F / 32°C

That’s roughly 1°F above the normal August average and exceptionally warm for swimming. (thebeachscore.com)

Swimming Comfort: 🟢 Excellent — although the water isn’t exactly going to cool you off much today.

🏄 SURF & MARINE CONDITIONS: 🟢 EXCELLENT

It’s another very calm morning along Marco Island.

🌊 Surf: Around 1 ft or less
⚠️ Rip Current Risk: 🟢 LOW
💨 Winds: Generally around 5–8 mph (8–13 km/h)
🌊 Offshore Gulf seas: 1 ft or less
⏱️ Wave period: Roughly 2–3 seconds

NWS marine guidance calls for light winds and very small seas, although thunderstorms can produce locally higher winds and waves. (marine.weather.gov)

Boating Rating: 🟢 VERY GOOD this morning

🌤️ WEATHER FORECAST

It’s partly sunny and about 78°F / 26°C early this morning.

Expect plenty of morning sunshine followed by increasing clouds and the possibility of a thunderstorm later.

🌡️ High: Around 94°F / 34°C
🌙 Low tonight: Around 77°F / 25°C
🥵 Heat index: Could reach roughly 100–103°F / 38–39°C this afternoon
💨 Winds: Light, generally E/SE early, becoming southerly

The combination of high humidity and strong August sunshine will make the afternoon considerably hotter than the thermometer suggests. (forecast.weather.gov)

🌧️ RAIN & THUNDERSTORM CHANCES

Morning: ☀️ Roughly 10–20%
Early afternoon: 🌤️ Around 20–30%
Mid/Late afternoon: ⛈️ Approximately 30–40%

The NWS hourly forecast increases rain chances into the afternoon, with thunderstorm potential also rising. (weather.gov)

☀️ Best beach window: 8 AM–1 PM

🌀 TROPICAL OUTLOOK: 🟢 NO IMMEDIATE MARCO ISLAND THREAT

The Atlantic currently has Tropical Storm Dolly, which continues moving rapidly westward across the tropical Atlantic. The National Hurricane Center says interests in the Leeward Islands should monitor Dolly. (nhc.noaa.gov)

For Marco Island and Southwest Florida, Dolly does not represent an immediate tropical threat today.

Marco Island Tropical Risk Today: 🟢 LOW

🌊 TODAY’S TIDES

For Marco Island/Caxambas Pass: (usharbors.com)

🌊 High: 1:46 AM — 2.9 ft
⬇️ Low: 7:30 AM — 1.0 ft
🌊 High: 1:29 PM — 3.3 ft
⬇️ Low: 7:58 PM — 0.4 ft

🌕 Full Moon conditions mean larger-than-normal tidal swings.

🌅 SUNRISE / SUNSET

🌅 Sunrise: 7:05 AM
🌇 Sunset: 7:50 PM

That gives Marco Island about 12 hours 45 minutes of daylight today. (usharbors.com)

🌬️ AIR QUALITY: 🟢 GENERALLY GOOD

With light Gulf breezes and no major local smoke event apparent in today’s search, outdoor air conditions look generally favorable.

Air Quality Outlook: 🟢 GOOD

Sensitive individuals should still remember that high humidity, heat and afternoon thunderstorms can make outdoor conditions uncomfortable even when pollution levels are relatively low.

🌾 POLLEN & ALLERGY OUTLOOK: 🟡 LOW–MODERATE

Late August marks the beginning of the seasonal increase in weed pollen, particularly ragweed, while grass pollen can remain present.

🌳 Tree pollen: 🟢 Low
🌱 Grass pollen: 🟡 Low–Moderate
🌾 Weed/Ragweed: 🟡 Moderate potential
🍄 Mold: 🟡 Can increase with humidity and afternoon rainfall

Overall Allergy Risk: 🟡 LOW–MODERATE

🎣 FISHING OUTLOOK: 🟢 VERY GOOD

Recent Marco Island fishing reports indicate big snook, oversized redfish and smaller tarpon are active, while snapper, sharks and other backcountry species remain available. (captainexperiences.com)

Today’s full moon and strong tidal movement should provide some particularly good feeding periods.

🎣 Best bets: Snook • Redfish • Tarpon • Mangrove Snapper

⏰ Best window: Morning around the low-to-incoming tide, followed by another opportunity around the afternoon high tide.

Fishing Score: 🎣 8.5/10

🏖️ OVERALL MARCO ISLAND BEACH SCORE

⭐ 9.0 / 10 — EXCELLENT MORNING

🦠 Red Tide: 🟢 Low risk
💧 Water Quality: 🟢 Good
🌊 Gulf Temperature: 🔥 90°F / 32°C
🏄 Surf: 🟢 Very calm
⚠️ Rip Currents: 🟢 Low
🚤 Boating: 🟢 Very good
☀️ Morning Weather: 🟢 Excellent
⛈️ Afternoon Weather: 🟡 Thunderstorms possible
🌬️ Air Quality: 🟢 Good
🌾 Allergies: 🟡 Low–Moderate
🎣 Fishing: 🟢 Very good
🌀 Tropical Threat: 🟢 Low

🌴 Bottom Line

This is a great Marco Island beach morning. The Gulf is extremely warm and calm, rip-current risk is low, and there is no significant local red-tide issue in the latest published FWC report. The biggest concerns are strong heat and increasing thunderstorm chances this afternoon.

👉 Best time for the beach: now through roughly 1 PM. After that, keep an eye on the western sky and radar for developing thunderstorms.