Mid-November through February for manatee season; late March through mid-May for warm weather without summer heat and crowds. November–February delivers the peak manatee congregation in Kings Bay (600+ manatees in constant 72 F springs), comfortable air temps in the 60s–70s F, minimal rain, and the Florida Manatee Festival in January. Spring (late March–May) offers warm weather, scallop-free uncrowded waters, and pleasant temps before oppressive summer humidity. Both windows avoid hurricane-season storms (peak August–October) and the sweltering July–August heat (highs near 91 F with high humidity)
| Month | High (°F) | Low (°F) | Notes |
|---|---|---|---|
| Jan | 67 | 51 | mild & mostly dry |
| Feb | 70 | 54 | mild & mostly dry |
| Mar | 74 | 58 | warm & mostly dry |
| Apr | 80 | 63 | warm & mostly dry |
| May | 85 | 69 | warm & changeable |
| Jun | 87 | 75 | hot & wet |
| Jul | 88 | 76 | hot & wet |
| Aug | 88 | 77 | hot & wet |
| Sep | 86 | 74 | hot & changeable |
| Oct | 82 | 68 | warm & mostly dry |
| Nov | 75 | 60 | warm & mostly dry |
| Dec | 70 | 55 | mild & mostly dry |