Weather in Sullivan's Island, SC
Sullivan's Island, Friday, 13 November, 10:30
Clear. Feels like 57°. High 61°, low 45°.
Monthly outlook for Sullivan's Island, SC: average high 62.2°, average low 49.2°. That is 1.9° below the climate normal for November. Precipitation is expected on 1 day (about 1.0 inches), against a normal of 3 days and 1.3 inches. The warmest day looks like 24 November (72.1°), the coolest 27 November (34.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 November – 22 November | 63.5° | 65.7° | -1.2° |
| 23 November – 2 December | 60° | 64.6° | -2.5° |
| 3 December – 12 December | at normal | 61.7° | — |
November records over 66 years
0Sullivan's Island, Saturday, 14 November
Clear. High 60°, low 41°.
0
Sullivan's Island, Sunday, 15 November
Partly cloudy. High 57°, low 42°.
0
Sullivan's Island, Monday, 16 November
Overcast. High 60°, low 44°.
0
Sullivan's Island, Tuesday, 17 November
Light rain. High 61°, low 47°.
0Sullivan's Island, Wednesday, 18 November
Clear. High 64°, low 45°.
0.02Sullivan's Island, Thursday, 19 November
Light rain. High 67°, low 53°.
0Sullivan's Island, Friday, 20 November
Overcast. High 68°, low 60°.
0
Sullivan's Island, Saturday, 21 November
Mostly clear. High 67°, low 56°.
0Sullivan's Island, Sunday, 22 November
Clear. High 70°, low 62°.
0Sullivan's Island, Monday, 23 November
Light rain. High 70°, low 63°.
0Sullivan's Island, Tuesday, 24 November
Clear. High 72°, low 62°.
0Sullivan's Island, Wednesday, 25 November
Partly cloudy. High 60°, low 49°.
0.94Sullivan's Island, Thursday, 26 November
Rain. High 52°, low 37°.
0Sullivan's Island, Friday, 27 November
Clear. High 49°, low 35°.
0Sullivan's Island, Saturday, 28 November
Overcast. High 57°, low 45°.
0.06Sullivan's Island, Sunday, 29 November
Climate normal for this date — 60-year average.
0.14Sullivan's Island, Monday, 30 November
Climate normal for this date — 60-year average.
0.05Sullivan's Island, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.08Sullivan's Island, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.09Sullivan's Island, Thursday, 3 December
Climate normal for this date — 60-year average.
0.05Sullivan's Island, Friday, 4 December
Climate normal for this date — 60-year average.
0.08Sullivan's Island, Saturday, 5 December
Climate normal for this date — 60-year average.
0.08Sullivan's Island, Sunday, 6 December
Climate normal for this date — 60-year average.
0.09Sullivan's Island, Monday, 7 December
Climate normal for this date — 60-year average.
0.12Sullivan's Island, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.09Sullivan's Island, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.13
Sullivan's Island, Thursday, 10 December
Climate normal for this date — 60-year average.
0.08Sullivan's Island, Friday, 11 December
Climate normal for this date — 60-year average.
0.16Sullivan's Island, Saturday, 12 December
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Sullivan's Island, SC are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Sullivan's Island, SC since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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