December on Amelia Island typically offers mild, pleasant conditions. Average high temperatures hover in the low 60s Fahrenheit (mid-teens Celsius), while average lows dip to the mid-40s Fahrenheit (around 7 degrees Celsius). Rainfall is possible, averaging around 3 inches for the month. Sunshine is still prevalent, making outdoor activities enjoyable. Ocean temperatures cool down to the low 60s Fahrenheit (mid-teens Celsius).
This period presents a unique opportunity to experience the island’s beauty with fewer crowds than the peak summer season. Comfortable temperatures facilitate exploration of the historic district, enjoyment of nature trails, and leisurely rounds of golf. The cooler ocean temperatures can be bracing for surfers, while the calmer waters are ideal for kayaking and paddleboarding. Historically, December marks the beginning of the island’s quieter season, offering a peaceful retreat from colder climates.