If you want the weather to co-operate, come in spring. April is the driest month of the year at 3.03 inches, afternoons reach 77.4°F, the humidity has not arrived and neither have the biting insects. Everything that involves being outside is better now than at any other point in the year.
Everything except swimming.
The one catch, stated plainly
The ocean is 64.7°F in March and 71.2°F in April, reaching 77.7°F only in late May. The air reaches 77.4°F in April — a 6.2°F gap over the sea — so the day looks like summer and the water empties a swimmer out in a few minutes. The sea lags the air by about two months here. See is the water warm in April.
If your trip is built around swimming, move it to June or later, or to October. If it is not, spring wins outright.
What spring is for
The marsh. Kayaking the creeks behind the island is at its best: warm air, no insects yet, and the spring tides around the new and full moon running big enough to get well back into the marsh. Go an hour either side of high water — at dead low a lot of the back marsh is mud. Check the tides when you plan, not when you arrive.
The trails. Egans Creek Greenway and the six-mile off-road trail inside Fort Clinch are warm enough to walk far and cool enough not to sweat.
Birding. Spring migration through a barrier-island marsh, with the wading birds resident year-round.
Cycling. The island is flat, and fat-tyre bikes work on the firm beach sand at low tide.
The beach, for walking. Thirteen miles of hard flat sand at low water, and the sandbars exposed for wading — cold, but wadeable.
What to expect from the weather
|
Average high |
Average low |
Rain |
Ocean |
| March |
72.2°F |
54.1°F |
3.27″ |
64.7°F |
| April |
77.4°F |
59.8°F |
3.03″ |
71.2°F |
| May |
83.9°F |
67.7°F |
2.68″ |
77.7°F |
Evenings still want a jacket into April. Humidity arrives towards the end of May, and so do the insects.
Two dates that change everything
The Shrimp Festival, early May, closes downtown streets and books out the whole island months ahead. Concours weekend in March fills the south-end resorts. Both are worth planning around in either direction — see events.
Sea turtle nesting opens 1 May. From then the beach carries rules that are enforced: fill in holes, take gear off the sand overnight, keep lights off the beach. See when do sea turtles nest.