Monthly outlook for Sullivan's Island, SC: average high 63°, average low 50.7°. That is 1.5° below the climate normal for November. Precipitation is expected on 3 days (about 1.2 inches), against a normal of 3 days and 1.3 inches. The warmest day looks like 24 November (73°), the coolest 28 November (40.3°).
63°/50.7°
Average high / low
−1.5°
Below normal
3 / 3
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 November – 22 November
63.2°
65.7°
-1.4°
23 November – 2 December
62.7°
64.6°
-1.1°
3 December – 12 December
at normal
61.7°
—
November records over 66 years
84°1 November 1961All-time high
29.3°25 November 1970All-time low
Sat, 1459° / 44°0
59 °
Sullivan's Island, Saturday, 14 November
Clear. High 59°, low 44°.
Pressure30.06 inHg
Wind8.7 mph N
Humidity38%
Visibility6.2 mi
Dew point32°
Sun, 1557° / 41°0
57 °
Sullivan's Island, Sunday, 15 November
Overcast. High 57°, low 41°.
Pressure30.33 inHg
Wind5.7 mph N
Humidity40%
Visibility6.2 mi
Dew point29°
Mon, 1661° / 44°0
61 °
Sullivan's Island, Monday, 16 November
Overcast. High 61°, low 44°.
Pressure30.45 inHg
Wind8.8 mph NE
Humidity43%
Visibility6.2 mi
Dew point38°
Tue, 1760° / 48°0
60 °
Sullivan's Island, Tuesday, 17 November
Overcast. High 60°, low 48°.
Pressure30.45 inHg
Wind10.4 mph NE
Humidity61%
Visibility—
Dew point44°
Wed, 1867° / 49°0
67 °
Sullivan's Island, Wednesday, 18 November
Clear. High 67°, low 49°.
Pressure30.36 inHg
Wind13.9 mph NE
Humidity44%
Visibility—
Dew point42°
Thu, 1966° / 57°0
66 °
Sullivan's Island, Thursday, 19 November
Partly cloudy. High 66°, low 57°.
Pressure30.33 inHg
Wind18.1 mph NE
Humidity73%
Visibility—
Dew point56°
Fri, 2066° / 56°0
66 °
Sullivan's Island, Friday, 20 November
Overcast. High 66°, low 56°.
Pressure30.27 inHg
Wind13.3 mph N
Humidity37%
Visibility—
Dew point37°
Sat, 2165° / 55°0
65 °
Sullivan's Island, Saturday, 21 November
Clear. High 65°, low 55°.
Pressure30.24 inHg
Wind14.9 mph NE
Humidity50%
Visibility—
Dew point45°
Sun, 2266° / 57°0
66 °
Sullivan's Island, Sunday, 22 November
Clear. High 66°, low 57°.
Pressure30.21 inHg
Wind14.1 mph E
Humidity66%
Visibility—
Dew point53°
Mon, 2371° / 61°0.06
71 °
Sullivan's Island, Monday, 23 November
Light rain. High 71°, low 61°.
Pressure30.15 inHg
Wind16 mph E
Humidity72%
Visibility—
Dew point61°
Tue, 2473° / 70°0.07
73 °
Sullivan's Island, Tuesday, 24 November
Light rain. High 73°, low 70°.
Pressure30.03 inHg
Wind18.6 mph SE
Humidity77%
Visibility—
Dew point65°
Wed, 2571° / 53°1.07
71 °
Sullivan's Island, Wednesday, 25 November
Heavy rain. High 71°, low 53°.
Pressure29.77 inHg
Wind21.3 mph SW
Humidity91%
Visibility—
Dew point66°
Thu, 2654° / 46°0
54 °
Sullivan's Island, Thursday, 26 November
Light rain. High 54°, low 46°.
Pressure30.03 inHg
Wind21.2 mph N
Humidity52%
Visibility—
Dew point35°
Fri, 2752° / 42°0
52 °
Sullivan's Island, Friday, 27 November
Overcast. High 52°, low 42°.
Pressure30.18 inHg
Wind15.7 mph NE
Humidity34%
Visibility—
Dew point22°
Sat, 2854° / 40°0
54 °
Sullivan's Island, Saturday, 28 November
Clear. High 54°, low 40°.
Pressure30.24 inHg
Wind15.7 mph N
Humidity51%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2964° / 51°0.06
64 °
Sullivan's Island, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high64°
Average low51°
Average precipitation0.06 in
Chance of precipitation18%
Record high75° (1985)
Record low35° (2018)
Mon, 3064° / 51°0.14
64 °
Sullivan's Island, Monday, 30 November
Climate normal for this date — 60-year average.
Average high64°
Average low51°
Average precipitation0.14 in
Chance of precipitation22%
Record high75° (1991)
Record low36° (2024)
Tue, 0163° / 51°0.05
63 °
Sullivan's Island, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high63°
Average low51°
Average precipitation0.05 in
Chance of precipitation17%
Record high75° (1982)
Record low31° (1964)
Wed, 0263° / 50°0.08
63 °
Sullivan's Island, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high63°
Average low50°
Average precipitation0.08 in
Chance of precipitation20%
Record high74° (1982)
Record low33° (1964)
Thu, 0363° / 49°0.09
63 °
Sullivan's Island, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high63°
Average low49°
Average precipitation0.09 in
Chance of precipitation17%
Record high75° (1998)
Record low34° (2024)
Fri, 0462° / 49°0.05
62 °
Sullivan's Island, Friday, 4 December
Climate normal for this date — 60-year average.
Average high62°
Average low49°
Average precipitation0.05 in
Chance of precipitation13%
Record high75° (1998)
Record low33° (2000)
Sat, 0562° / 49°0.08
62 °
Sullivan's Island, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high62°
Average low49°
Average precipitation0.08 in
Chance of precipitation25%
Record high75° (1998)
Record low33° (1969)
Sun, 0662° / 48°0.08
62 °
Sullivan's Island, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high62°
Average low48°
Average precipitation0.08 in
Chance of precipitation27%
Record high76° (1998)
Record low31° (2024)
Mon, 0761° / 48°0.09
61 °
Sullivan's Island, Monday, 7 December
Climate normal for this date — 60-year average.
Average high61°
Average low48°
Average precipitation0.09 in
Chance of precipitation32%
Record high75° (1998)
Record low30° (1984)
Tue, 0861° / 48°0.12
61 °
Sullivan's Island, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high61°
Average low48°
Average precipitation0.12 in
Chance of precipitation25%
Record high76° (1978)
Record low29° (2010)
Wed, 0962° / 49°0.09
62 °
Sullivan's Island, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high62°
Average low49°
Average precipitation0.09 in
Chance of precipitation23%
Record high75° (1978)
Record low32° (1968)
Thu, 1062° / 49°0.13
62 °
Sullivan's Island, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high62°
Average low49°
Average precipitation0.13 in
Chance of precipitation33%
Record high73° (1961)
Record low33° (1962)
Fri, 1161° / 48°0.08
61 °
Sullivan's Island, Friday, 11 December
Climate normal for this date — 60-year average.
Average high61°
Average low48°
Average precipitation0.08 in
Chance of precipitation27%
Record high74° (1972)
Record low31° (1968)
Sat, 1261° / 48°0.16
61 °
Sullivan's Island, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high61°
Average low48°
Average precipitation0.16 in
Chance of precipitation28%
Record high75° (2007)
Record low26° (1962)
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.