Weather in Sullivan's Island, SC
Sullivan's Island, Sunday, 15 November, 18:12
Clear. Feels like 49°. High 58°, low 34°.
Monthly outlook for Sullivan's Island, SC: average high 66°, average low 53.8°. That is 0.3° above the climate normal for November. Precipitation is expected on 4 days (about 2.1 inches), against a normal of 3 days and 1.4 inches. The warmest day looks like 19 November (71.8°), the coolest 15 November (34.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 November – 24 November | 65.1° | 65.6° | -0.3° |
| 25 November – 4 December | 67.5° | 64.2° | +1.9° |
| 5 December – 14 December | at normal | 61.5° | — |
November records over 66 years
0
Sullivan's Island, Monday, 16 November
Overcast. High 61°, low 38°.
0
Sullivan's Island, Tuesday, 17 November
Clear. High 63°, low 38°.
0Sullivan's Island, Wednesday, 18 November
Overcast. High 67°, low 48°.
0
Sullivan's Island, Thursday, 19 November
Mostly clear. High 72°, low 55°.
0Sullivan's Island, Friday, 20 November
Overcast. High 71°, low 58°.
1.37
Sullivan's Island, Saturday, 21 November
Heavy rain. High 69°, low 60°.
0.1Sullivan's Island, Sunday, 22 November
Light rain. High 61°, low 59°.
0
Sullivan's Island, Monday, 23 November
Partly cloudy. High 67°, low 59°.
0Sullivan's Island, Tuesday, 24 November
Mostly clear. High 62°, low 55°.
0Sullivan's Island, Wednesday, 25 November
Overcast. High 65°, low 55°.
0.13Sullivan's Island, Thursday, 26 November
Rain. High 69°, low 62°.
0.02Sullivan's Island, Friday, 27 November
Light rain. High 70°, low 61°.
0Sullivan's Island, Saturday, 28 November
Overcast. High 63°, low 56°.
0Sullivan's Island, Sunday, 29 November
Overcast. High 68°, low 56°.
0.52Sullivan's Island, Monday, 30 November
Rain. High 71°, low 65°.
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.
0.13Sullivan's Island, Sunday, 13 December
Climate normal for this date — 60-year average.
0.15Sullivan's Island, Monday, 14 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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