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Climate · Sea Island

Sea Island in December

Mild and mostly dry, as the days hold steady.

Typical weather, averaged over 30 years

December in Sea Island is mild: highs near 67°F, lows near 52°F. Rain falls on about two days a week, and daylight holds at about 10 hours 9 minutes.December in Sea Island is mild: highs near 19°C, lows near 11°C. Rain falls on about two days a week, and daylight holds at about 10 hours 9 minutes.

High
67°F19°Caverage
Low
52°F11°Caverage
Wet days
2a week · 27% of days
Daylight
10h 09mon average

Is December a good time to visit Sea Island?

A good month, just outside Sea Island's best months, which run in two parts: March to April, or November.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How December sits in the year

week by week

Temperature

Highs near 67°F in December, against 64°F to 90°F through the year.Highs near 19°C in December, against 18°C to 32°C through the year.

Chance of a wet day

27% of days in December, against 23% to 67% through the year.

Cloud cover

45% cover in December, against 38% to 58% through the year.

Daylight

10h 09m in December, against 10h 09m to 14h 08m through the year.

Week by week, lightly smoothed, with December shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. November73°23°low 59°low 15°2 wet days a weekRain on about two days a week.
  2. December67°19°low 52°low 11°2 wet days a weekRain on about two days a week.
  3. January64°18°low 49°low 9°2 wet days a weekRain on about two days a week.

Where Sea Island sits, in December

America/New York
this place
typical high in December 40°F4°C95°F35°C
Sunrise, mid-December
7:16 AMsets 5:25 PM
Above the sea
0 mlow-lying
Latitude
31.2°Nnorthern hemisphere
Nearest of ours
Bluffton126 km north

The land around Sea Island, shaded by its typical high in December, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in United States in December

high · low · wet days
See December on the planning mapThe whole year in Sea Island

Typical weather, averaged over 30 years (1995–2024), read 5 km north-west of Sea Island. Its own grid square is mostly sea and holds only a daily average, so the page reads the nearest square with a true high and low near the town's height. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match.Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match. Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.