Sea Islands in December

April through June brings perfect weather — highs in the 70s and 80s, low humidity, and fewer crowds than summer. The azaleas bloom in April, turning Beaufort's historic district pink and white. May offers the best beach weather before the summer heat kicks in. September through November delivers another sweet spot: warm days, cool nights, and hurricane season winding down. October is particularly beautiful when the marsh grass turns golden. Summer gets hot and humid, with afternoon thunderstorms that clear quickly but can drench you. Winter stays mild — you might need a light jacket for evening walks, but daytime temperatures often hit the 60s. The shoulder seasons also mean better deals on accommodations and less crowded beaches. But avoid late August and early September when hurricane risk peaks and humidity makes everything sticky.