December in St. Augustine represents a transitional period where the intense summer heat finally subsides, replaced by a more temperate climate that defines the region’s unique character. This month marks the beginning of the dry season, offering a compelling blend of mild temperatures and reduced humidity that attracts both retirees and travelers seeking a comfortable escape. Understanding the specific weather patterns, including average temperatures, rainfall, and wind conditions, is essential for planning any visit or outdoor activity. The data reveals a significant drop from the summer months, creating an environment perfect for exploring historic sites and pristine beaches without the oppressive heat.
Temperature Trends and Daily Comfort
The most notable feature of St. Augustine weather in December is the comfortable coolness that settles over the area. Daytime highs typically range from the mid-60s to low 70s Fahrenheit (18-22°C), providing an ideal temperature for walking along the historic streets or playing a round of golf. Nighttime lows often dip into the upper 40s to low 50s Fahrenheit (8-11°C), creating a pleasant evening atmosphere that is perfect for dining outdoors. This moderate range eliminates the need for heavy winter coats, allowing visitors to enjoy light layers throughout the day.
Ocean and Air Temperatures
While the air temperature becomes quite agreeable, the water temperature remains relatively cool, usually hovering around 65°F (18°C). This temperature is still suitable for swimming for the more hardy individuals, but most visitors find the ocean too cold for extended water activities during December. The air temperature, however, feels significantly warmer than the ocean due to the lower humidity levels, creating a comfortable contrast. Wetsuits are generally not recommended for water sports, but rash guards can provide a bit of warmth for those who choose to swim.
Rainfall and Humidity Levels
December is one of the drier months in St. Augustine, marking a distinct shift from the humid and stormy summer season. The average rainfall for the month is typically under 3 inches, spread across approximately 7 to 9 days of light precipitation. This decrease in rain frequency means more reliable plans for outdoor excursions, whether it be visiting the Castillo de San Marcos or exploring the nearby nature trails. The humidity levels also drop significantly, creating a crispness in the air that is noticeably different from the muggy summers.
Sunshine and Daylight Hours
December offers about 6 hours of direct sunshine per day, providing ample daylight for sightseeing and photography. The sun rises around 7:00 AM and sets close to 5:30 PM, creating long, golden hours that are perfect for capturing the beauty of the coastal landscape. The reduced cloud cover associated with the dry season ensures that these daylight hours are often clear and bright. This increase in visible sunshine contributes directly to the positive mood and energy levels of visitors exploring the city.
Wind and Coastal Conditions
Coastal breezes are a constant presence in St. Augustine, and December is no exception. Winds typically remain moderate, averaging between 8 to 12 mph, which helps to keep the air feeling fresh and clean. These winds can make the cooler temperatures feel slightly colder, particularly near the water, so a light windbreaker is a wise accessory. The combination of wind and sunshine creates a dynamic environment where the weather feels active rather than stagnant.
What to Pack for a December Visit
Packing for St. Augustine in December requires a strategic approach to layering. Light sweaters, long-sleeve shirts, and comfortable pants are essential for the cooler mornings and evenings. Visitors should definitely include a medium-weight jacket or a stylish coat for warmth. Footwear should prioritize comfort and grip, as the historic brick streets can be slippery when damp. Swimwear is still worth packing for indoor pools or the occasional warm day, but the focus should remain on versatile outerwear.
