In short
- Winter (Nov-Apr) has cooler weather and fewer bugs.
- Summer is hotter and buggier, but better for water activities.
- Mosquitoes are present on the islands all year.
In this article
Biscayne National Park is open year-round, but your experience changes with the seasons. Since 95% of the park is water, boat tours are the primary way to explore. Guided excursions depart from Dinner Key Marina in Coconut Grove. Choosing the right month ensures a more comfortable trip, especially when landing on the islands.
When is the best time to visit Biscayne National Park?
November through April provides the best overall conditions.
During these months, the weather is cooler and more comfortable. The mosquito population on the islands is also lower. This makes walking the half-mile trail at Boca Chita Key much more pleasant.
What is it like visiting in the summer?
Summer is hotter and significantly buggier.
Temperatures and humidity rise during the summer months. Mosquitoes become highly active on the keys. However, summer is better for water activities. If you plan to spend most of your time in the water, the warmer ocean temperatures are ideal.
| Season | Weather | Bug Level | Best For |
|---|---|---|---|
| November to April | Comfortable | Lower | Island walks, sightseeing |
| May to October | Hot and humid | High | Water activities |
Are there bugs on the islands year-round?
Yes, mosquitoes are always present on the keys.
Even during the cooler winter months, you will encounter mosquitoes on Boca Chita Key. You must bring insect repellent. Apply it generously before walking the hiking trail or exploring the grassy picnic areas.
What should I pack for the weather?
Bring sun protection and a light jacket for the boat ride.
- Reef-safe sunscreen (mandatory)
- Secure sun hat and sunglasses with a retaining strap
- Light jacket or windbreaker for breezy conditions on the water
- Insect repellent for island landings
Conditions on Biscayne Bay can change, so layered clothing helps keep you comfortable.
Do I need to bring water in the summer?
You must bring your own drinking water all year.
There is no fresh water available anywhere on the islands. You must pack plenty of drinking water for your trip. This is especially critical during the hot summer months. You also need to pack out all your trash, as there are no trash cans.
Do the boat tours run all year?
Yes, departures from Coconut Grove operate year-round.
The Biscayne National Park Institute runs guided excursions from Dinner Key Marina every month. Options include a 2-hour Stiltsville sightseeing cruise for about $70 per adult. You can also take a 3.5 to 4-hour Boca Chita Key Heritage Cruise for roughly $83 per adult.
Questions travellers ask
Are dogs allowed on Boca Chita Key?
No, pets are not permitted on Boca Chita Key or the tour boats. Service animals are the only exception.
Where do the boat tours leave from in Miami?
Tours depart from Dinner Key Marina at 3400 Pan American Dr, Miami. Check in at Pier 9 in Coconut Grove.
Is Biscayne National Park free to enter?
Yes, Biscayne National Park does not charge an entrance fee. However, guided boat tours require paid tickets.
