Miami water temperature
The sea off Miami is warmest in August, around 85°F (30°C), and coolest in February, around 77°F (25°C).
Photo: Marc Averette, CC BY-SA 3.0
Sea temperature by month
| Month | Sea | Feels | Air high |
|---|---|---|---|
| January | 77°F (25°C) | Warm | 76°F |
| February | 77°F (25°C) | Warm | 78°F |
| March | 78°F (25°C) | Warm | 81°F |
| April | 79°F (26°C) | Warm | 84°F |
| May | 81°F (27°C) | Bath-warm | 87°F |
| June | 83°F (28°C) | Bath-warm | 89°F |
| July | 85°F (29°C) | Bath-warm | 91°F |
| August | 85°F (30°C) | Bath-warm | 91°F |
| September | 85°F (29°C) | Bath-warm | 89°F |
| October | 83°F (29°C) | Bath-warm | 86°F |
| November | 81°F (27°C) | Bath-warm | 81°F |
| December | 79°F (26°C) | Warm | 78°F |
Average sea-surface temperature just offshore, 1991–2020. Water in shallow bays runs a little warmer on sunny afternoons.
On the water in Miami
Questions
When is the water warmest in Miami?
August, at about 85°F (30°C).
Can you swim in Miami all year?
Yes. The sea stays at 77°F or warmer even in February.
Do I need a wetsuit to snorkel in Miami?
Not for warmth: the water stays above 77°F all year, though a thin top helps with sun on long trips.
