Rockville Centre Weather in December

With daytime temperatures of 8°C (46°F) and nighttime lows of 1°C (34°F), December in Rockville Centre brings low temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 122 mm (4.8 in) falls on average.

Rainfall in Rockville Centre in December

You can typically expect 13 days of rain this month, averaging around 122 mm (4.8 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Rockville Centre in December

Expect highs of 8°C (46°F) in Rockville Centre in December, with nights dropping to around 1°C (34°F). During December, you'll experience the winter season. It stays cool throughout the day, so warm layers are a good idea from morning to evening. Nights drop to 1°C (34°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Rockville Centre in December

The area enjoys a moderate level of sunlight, with around 141 hours. It's a good balance between sunny and cloudy days.

Wind Speed in Rockville Centre in December

Wind speeds average 6 m/s (12 knots) during December. At this speed, expect strong winds that make large branches move and create some resistance when walking. Since this is an average, some days have fresh winds while others have strong breezes that can make umbrellas tricky to control.

Average water temperature in December

The water sits at 9°C (48°F) this month, which is well below what most people consider swimmable. Wetsuits help, but expect it to still feel cold.

December in Rockville Centre has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.