Marco Island in August.
The cheapest month to come — and the highest hurricane risk. If you're flexible and book with insurance, August is a real bargain on an empty beach.
August at a glance
- Avg high
- 91°F
- Avg low
- 76°F
- Gulf water
- 88°F
- Rainy days
- 17 days
- Crowds
- Low
- Beachfront /night
- $200–$400
Comparing months? See all twelve side by side.
Weather
Highs 91–93°F, lows 76°F. Water 86°F (genuinely warm). Daily storms, occasional all‑day rain from a tropical wave. Hurricane risk peaks mid‑August through September.
Prices
Bottom of the year. Beachfront condos $200–$400/night. The JW Marriott runs summer family packages with kids‑eat‑free.
What to book first
- Travel insurance — non‑negotiable in August.
- A refundable rental, not a discount no‑refund deal.
- Morning boat tours — afternoon storms are reliable.
What to skip
Non‑refundable lodging. The savings aren't worth the hurricane risk.
One local note
The National Hurricane Center's 5‑day cone is your friend. Anything more than 5 days out is guesswork — don't cancel a trip 2 weeks in advance based on a long‑range model.
Quick answers
Common questions about August.
- What is the weather like on Marco Island in August?
- Marco Island in August averages highs around 91°F and lows around 76°F, with Gulf water temperatures near 88°F. Expect roughly 17 days of measurable rain across the month. The hottest, wettest, cheapest month.
- Is the water warm enough to swim on Marco Island in August?
- Gulf water off Marco Island sits around 88°F in August. Most visitors find anything above 75°F comfortable for a long swim; in the low 70s the water is swimmable but bracing for the first few minutes, and locals tend to wait for the afternoon.
- How busy and how expensive is Marco Island in August?
- August crowd levels on Marco Island are low, and beachfront rentals typically run $200–$400 per night. Rates and availability move fast around holidays and weekends, so book earlier than you think you need to.