Best time to visit Biscayne National Park
The short answer
Best months to visit Biscayne National Park: December–April. Daily highs run about 75–80°F, with about 85% of May's visitors.
Hardest months: June–September, mostly because of rain.
How we picked these months: each month is scored on daily highs (65–82°F is ideal), rain, snow and seasonal closures, then reduced by up to 30% for crowds, measured against the park's busiest month. We list the months within 15% of the top score (at most 5).
Weather and crowds by month
Biscayne National Park month by month
Park-wide averages across 8 locations. Crowds compare each month with the park's busiest month: Quiet is under 35% of it, Moderate under 60%, Busy under 85%, Peak above that.
| Month | Rating | High / low | Rain | Crowds | Closures |
|---|---|---|---|---|---|
| January | Best | 75° / 64°F | 2.7 in | Busy | – |
| February | Best | 77° / 67°F | 1.8 in | Busy | – |
| March | Best | 79° / 69°F | 1.5 in | Peak | – |
| April | Best | 82° / 72°F | 2.5 in | Peak | – |
| May | Fair | 83° / 74°F | 5.3 in | Peak | – |
| June | Poor | 85° / 77°F | 7.0 in | Busy | – |
| July | Poor | 87° / 79°F | 4.7 in | Peak | – |
| August | Poor | 87° / 79°F | 5.4 in | Busy | – |
| September | Poor | 86° / 78°F | 7.7 in | Busy | – |
| October | Fair | 83° / 75°F | 4.8 in | Busy | – |
| November | Good | 80° / 71°F | 3.9 in | Busy | – |
| December | Best | 77° / 68°F | 2.6 in | Busy | – |
Weather by location
Parks with a big range of elevation can differ a lot from one area to another. Open a location to see its own numbers.
Park-wide (center of the park)
| Month | High | Low | Rain |
|---|---|---|---|
| January | 74°F | 66°F | 2.8 in |
| February | 76°F | 69°F | 1.7 in |
| March | 77°F | 70°F | 1.5 in |
| April | 80°F | 74°F | 2.5 in |
| May | 82°F | 76°F | 5.2 in |
| June | 84°F | 79°F | 6.2 in |
| July | 86°F | 80°F | 4.3 in |
| August | 86°F | 81°F | 5.3 in |
| September | 85°F | 79°F | 7.5 in |
| October | 83°F | 77°F | 4.9 in |
| November | 79°F | 73°F | 4.3 in |
| December | 76°F | 70°F | 2.7 in |
Boca Chita Key
| Month | High | Low | Rain |
|---|---|---|---|
| January | 74°F | 67°F | 2.9 in |
| February | 76°F | 69°F | 1.9 in |
| March | 77°F | 71°F | 1.5 in |
| April | 80°F | 74°F | 2.4 in |
| May | 82°F | 76°F | 5.0 in |
| June | 84°F | 79°F | 5.9 in |
| July | 86°F | 80°F | 4.2 in |
| August | 86°F | 81°F | 4.9 in |
| September | 85°F | 80°F | 7.1 in |
| October | 83°F | 77°F | 5.1 in |
| November | 79°F | 73°F | 4.5 in |
| December | 77°F | 71°F | 2.8 in |
Elliott Key
| Month | High | Low | Rain |
|---|---|---|---|
| January | 74°F | 67°F | 2.7 in |
| February | 76°F | 69°F | 1.8 in |
| March | 77°F | 71°F | 1.5 in |
| April | 80°F | 74°F | 2.2 in |
| May | 82°F | 76°F | 5.0 in |
| June | 84°F | 79°F | 6.3 in |
| July | 86°F | 80°F | 4.6 in |
| August | 86°F | 81°F | 5.1 in |
| September | 85°F | 80°F | 7.8 in |
| October | 83°F | 77°F | 4.4 in |
| November | 79°F | 73°F | 3.7 in |
| December | 77°F | 71°F | 2.6 in |
Convoy Point
| Month | High | Low | Rain |
|---|---|---|---|
| January | 76°F | 61°F | 2.6 in |
| February | 79°F | 65°F | 1.8 in |
| March | 81°F | 66°F | 1.4 in |
| April | 84°F | 70°F | 2.6 in |
| May | 85°F | 73°F | 5.6 in |
| June | 86°F | 76°F | 7.9 in |
| July | 88°F | 78°F | 5.6 in |
| August | 88°F | 78°F | 6.5 in |
| September | 87°F | 76°F | 8.1 in |
| October | 84°F | 74°F | 4.5 in |
| November | 81°F | 69°F | 3.9 in |
| December | 78°F | 65°F | 2.5 in |
Biscayne Bay
| Month | High | Low | Rain |
|---|---|---|---|
| January | 75°F | 62°F | 2.6 in |
| February | 77°F | 66°F | 1.8 in |
| March | 79°F | 67°F | 1.4 in |
| April | 82°F | 71°F | 2.6 in |
| May | 84°F | 74°F | 5.5 in |
| June | 85°F | 77°F | 7.4 in |
| July | 87°F | 79°F | 4.7 in |
| August | 87°F | 79°F | 5.7 in |
| September | 86°F | 77°F | 7.7 in |
| October | 83°F | 75°F | 4.8 in |
| November | 80°F | 70°F | 4.0 in |
| December | 77°F | 67°F | 2.5 in |
Jones Lagoon
| Month | High | Low | Rain |
|---|---|---|---|
| January | 76°F | 63°F | 2.4 in |
| February | 78°F | 67°F | 1.8 in |
| March | 80°F | 68°F | 1.5 in |
| April | 83°F | 71°F | 2.5 in |
| May | 85°F | 74°F | 5.0 in |
| June | 86°F | 77°F | 7.0 in |
| July | 89°F | 79°F | 4.2 in |
| August | 89°F | 79°F | 4.5 in |
| September | 87°F | 78°F | 7.4 in |
| October | 84°F | 75°F | 4.4 in |
| November | 81°F | 70°F | 3.4 in |
| December | 78°F | 67°F | 2.5 in |
Adams Key
| Month | High | Low | Rain |
|---|---|---|---|
| January | 75°F | 63°F | 2.5 in |
| February | 78°F | 67°F | 1.8 in |
| March | 80°F | 68°F | 1.5 in |
| April | 83°F | 72°F | 2.6 in |
| May | 84°F | 74°F | 5.5 in |
| June | 86°F | 77°F | 7.4 in |
| July | 88°F | 79°F | 4.8 in |
| August | 88°F | 79°F | 5.2 in |
| September | 87°F | 77°F | 7.9 in |
| October | 84°F | 75°F | 4.8 in |
| November | 80°F | 70°F | 3.7 in |
| December | 78°F | 67°F | 2.4 in |
Stiltsville
| Month | High | Low | Rain |
|---|---|---|---|
| January | 75°F | 62°F | 2.8 in |
| February | 77°F | 66°F | 1.9 in |
| March | 80°F | 67°F | 1.6 in |
| April | 83°F | 71°F | 2.8 in |
| May | 84°F | 73°F | 5.7 in |
| June | 85°F | 76°F | 7.9 in |
| July | 87°F | 78°F | 5.0 in |
| August | 88°F | 78°F | 5.7 in |
| September | 86°F | 77°F | 8.1 in |
| October | 83°F | 74°F | 5.1 in |
| November | 80°F | 69°F | 4.0 in |
| December | 77°F | 66°F | 2.8 in |
Biscayne National Park by season
Spring (March–May)
Spring (March–May) is a good time to visit Biscayne National Park. Daily highs average 79–83°F and lows 69–74°F. Expect about 3.1 in of rain a month and little or no snow. Visitor numbers run 91–100% of the busiest month, which is peak by this park's standards.
Summer (June–August)
Summer (June–August) is a difficult time to visit Biscayne National Park. Daily highs average 85–87°F and lows 77–79°F. Expect about 5.7 in of rain a month and little or no snow. Visitor numbers run 71–96% of the busiest month, which is busy by this park's standards.
Fall (September–November)
Fall (September–November) is a mixed time to visit Biscayne National Park. Daily highs average 80–86°F and lows 71–78°F. Expect about 5.5 in of rain a month and little or no snow. Visitor numbers run 63–78% of the busiest month, which is busy by this park's standards.
Winter (December–February)
Winter (December–February) is among the best times to visit Biscayne National Park. Daily highs average 75–77°F and lows 64–68°F. Expect about 2.4 in of rain a month and little or no snow. Visitor numbers run 77–82% of the busiest month, which is busy by this park's standards.
For what to do in each season, see our guides to trip planning, fees and hours, trails, camping and things to do, where the planning page also has our written advice on when to go. In-depth topic guides cover individual places and hikes.
What the National Park Service says about the weather
The park is situated in a subtropical climate, which ensures sunshine year-round. Winters are normally dry and mild, with occasional fronts bringing wind and little rain. Summer brings hot and humid weather with scattered thunderstorms in the afternoons. The average temperature in January is 68 degrees Fahrenheit and 82 in July. The average rainfall for the area is 2.17 inches in January and 3.95 inches in July. June to November is hurricane season.
Weather: modeled monthly averages for 2014-2023 (Open-Meteo Archive API), averaged over 8 locations. Modeled grid cells can read cooler than weather stations in deep canyons and deserts, and warmer or colder at high elevation. Visits: monthly recreation visits for 2021-2024, National Park Service.
