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Weather in Sullivan's Island, SC
68°
Sullivan's Island, Tuesday, 20 October, 18:51
Clear. Feels like 67°. High 75°, low 45°.
Pressure30.12 inHg
Wind1 mph N 
Humidity51%
Visibility6.2 mi
Dew point49°
Tue, 20October
75°/45°
75°/45°Wed, 21October74°/50°
74°/50°Thu, 22October73°/48°
73°/48°Fri, 23October69°/51°
69°/51°Sat, 24October
70°/52°
70°/52°Sun, 25October
73°/57°
73°/57°Mon, 26October
70°/57°
70°/57° | 00:00 | 02:00 | 04:00 | 06:00 | 08:00 | 10:00 | 12:00 | 14:00 | 16:00 | 18:00 | 20:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| | | | | | | | | | | | |
| Temperature | 73° | 56° | 51° | 45° | 53° | 61° | 69° | 72° | 69° | 67° | 65° | 61° |
| Feels like | 73° | 53° | 47° | 41° | 50° | 58° | 67° | 70° | 68° | 65° | 64° | 59° |
Pressure, inHg  | 30.15 | 30.15 | 30.15 | 30.15 | 30.15 | 30.15 | 30.15 | 30.15 | 30.15 | 30.15 | 30.12 | 30.15 |
| Wind, mph | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.6 | 3.9 |
Humidity, %  | 38% | 38% | 38% | 38% | 38% | 38% | 38% | 38% | 38% | 38% | 57% | 55% |
| Precipitation | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in |
| Visibility | — | — | — | — | — | — | — | — | — | — | 6.2 mi | 6.2 mi |
| 00:00 | 02:00 | 04:00 | 06:00 | 08:00 | 10:00 | 12:00 | 14:00 | 16:00 | 18:00 | 20:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| | | | | | | | | | | | |
| Temperature | 55° | 52° | 52° | 51° | 51° | 63° | 70° | 74° | 73° | 65° | 56° | 53° |
| Feels like | 53° | 50° | 50° | 49° | 49° | 62° | 69° | 73° | 71° | 64° | 54° | 51° |
| Pressure, inHg | 30.15 | 30.15 | 30.12 | 30.15 | 30.15 | 30.18 | 30.15 | 30.12 | 30.06 | 30.06 | 30.09 | 30.09 |
| Wind, mph | 3.8 | 3.9 | 4 | 4.1 | 4.2 | 4 | 3.8 | 3.4 | 3.4 | 2.6 | 2.7 | 2.2 |
| Humidity, % | 56% | 61% | 65% | 71% | 74% | 64% | 49% | 38% | 35% | 46% | 58% | 63% |
| Precipitation | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in |
| Visibility | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi |
| 00:00 | 02:00 | 04:00 | 06:00 | 08:00 | 10:00 | 12:00 | 14:00 | 16:00 | 18:00 | 20:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| | | | | | | | | | | | |
| Temperature | 50° | 49° | 49° | 48° | 49° | 59° | 67° | 72° | 73° | 68° | 62° | 60° |
| Feels like | 48° | 47° | 47° | 46° | 47° | 58° | 66° | 71° | 71° | 67° | 61° | 59° |
| Pressure, inHg | 30.09 | 30.06 | 30.06 | 30.09 | 30.09 | 30.12 | 30.09 | 30.06 | 30.03 | 30.06 | 30.09 | 30.09 |
| Wind, mph | 1.8 | 2 | 2.1 | 2.3 | 2.4 | 2.2 | 2.6 | 2.9 | 1.8 | 0.7 | 0.9 | 0.4 |
| Humidity, % | 70% | 75% | 80% | 82% | 83% | 67% | 42% | 35% | 35% | 58% | 73% | 75% |
| Precipitation | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in |
| Visibility | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi |
| 00:00 | 02:00 | 04:00 | 06:00 | 08:00 | 10:00 | 12:00 | 14:00 | 16:00 | 18:00 | 20:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| | | | | | | | | | | | |
| Temperature | 57° | 57° | 55° | 53° | 51° | 58° | 65° | 69° | 69° | 64° | 62° | 59° |
| Feels like | 56° | 55° | 53° | 51° | 49° | 56° | 63° | 67° | 67° | 62° | 60° | 58° |
| Pressure, inHg | 30.09 | 30.09 | 30.12 | 30.12 | 30.18 | 30.21 | 30.21 | 30.21 | 30.18 | 30.21 | 30.24 | 30.27 |
| Wind, mph | 0.9 | 2.9 | 2.9 | 3.4 | 3.8 | 3.5 | 4.1 | 3.7 | 4.3 | 4.7 | 3.8 | 3.7 |
| Humidity, % | 75% | 70% | 69% | 71% | 73% | 60% | 39% | 33% | 36% | 55% | 66% | 68% |
| Precipitation | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in |
| Visibility | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi |
| 00:00 | 02:00 | 04:00 | 06:00 | 08:00 | 10:00 | 12:00 | 14:00 | 16:00 | 18:00 | 20:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| | | | | | | | | | | | |
| Temperature | 58° | 57° | 55° | 53° | 52° | 58° | 64° | 70° | 70° | 68° | 65° | 64° |
| Feels like | 57° | 56° | 54° | 52° | 50° | 57° | 63° | 69° | 69° | 68° | 64° | 63° |
| Pressure, inHg | 30.30 | 30.27 | 30.30 | 30.30 | 30.33 | 30.36 | 30.36 | 30.33 | 30.30 | 30.30 | 30.33 | 30.33 |
| Wind, mph | 5.2 | 5.9 | 5.6 | 5.4 | 5.4 | 5.5 | 5.5 | 5.4 | 5.9 | 6.2 | 6.3 | 6.3 |
| Humidity, % | 69% | 77% | 73% | 71% | 72% | 63% | 55% | 48% | 50% | 56% | 48% | 48% |
| Precipitation | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in |
| Visibility | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | 6.2 mi | — | — |
| 00:00 | 02:00 | 04:00 | 06:00 | 08:00 | 10:00 | 12:00 | 14:00 | 16:00 | 18:00 | 20:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | | | | | | | | | | | | |
| Temperature | 73° | 61° | 59° | 57° | 62° | 67° | 71° | 72° | 70° | 67° | 66° | 64° |
| Feels like | 73° | 60° | 59° | 57° | 61° | 66° | 71° | 72° | 69° | 67° | 65° | 64° |
| Pressure, inHg | 30.30 | 30.30 | 30.30 | 30.30 | 30.30 | 30.30 | 30.30 | 30.30 | 30.30 | 30.30 | 30.30 | 30.30 |
| Wind, mph | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 |
| Humidity, % | 54% | 54% | 54% | 54% | 54% | 54% | 54% | 54% | 54% | 54% | 54% | 54% |
| Precipitation | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in |
| Visibility | — | — | — | — | — | — | — | — | — | — | — | — |
| 00:00 | 02:00 | 04:00 | 06:00 | 08:00 | 10:00 | 12:00 | 14:00 | 16:00 | 18:00 | 20:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| | | | | | | | | | | | |
| Temperature | 69° | 67° | 62° | 57° | 61° | 64° | 68° | 69° | 69° | 69° | 69° | 69° |
| Feels like | 69° | 67° | 62° | 56° | 60° | 64° | 67° | 69° | 69° | 69° | 70° | 70° |
| Pressure, inHg | 30.24 | 30.24 | 30.24 | 30.24 | 30.24 | 30.24 | 30.24 | 30.24 | 30.24 | 30.24 | 30.24 | 30.24 |
| Wind, mph | 8.3 | 8.3 | 8.3 | 8.3 | 8.3 | 8.3 | 8.3 | 8.3 | 8.3 | 8.3 | 8.3 | 8.3 |
| Humidity, % | 67% | 67% | 67% | 67% | 67% | 67% | 67% | 67% | 67% | 67% | 67% | 67% |
| Precipitation | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in | 0 in |
| Visibility | — | — | — | — | — | — | — | — | — | — | — | — |
Sun and moon today
Day length — 11 h 13 min
Sunrise — 07:27
Sunset — 18:40
Sunrise and sunset in local time
Waxing gibbous, 73%
Sunrise — —
Sunset — —
Sullivan's Island, SC climate by month
The annual average temperature in Sullivan's Island, SC is 66.9°. The warmest month is July (average high 86.8°), and the coldest is January (average low 44.1°). About 46.3 inches of precipitation fall per year, most of it in August (6.5 in). Figures are 60-year climate normals and records from 66 years of observations.
| Month | High | Low | Precipitation | Wet days | Record high | Record low |
|---|---|---|---|---|---|---|
| January | 57.6° | 44.1° | 3.3 in | 9 | 75.6° (2017) | 11.5° (2018) |
| February | 60.2° | 46.5° | 3.3 in | 8 | 79.7° (2025) | 21.6° (1996) |
| March | 65.7° | 52.2° | 3.4 in | 9 | 83.3° (1974) | 20.1° (1980) |
| April | 72.3° | 58.8° | 2.7 in | 7 | 88.9° (1967) | 37° (1983) |
| May | 78.9° | 66.6° | 3.0 in | 10 | 96.3° (2019) | 48.9° (2021) |
| June | 84.2° | 73.3° | 4.8 in | 15 | 96.8° (2010) | 58.1° (1984) |
| July | 86.8° | 76.7° | 5.0 in | 18 | 99.1° (2025) | 65.7° (1972) |
| August | 85.2° | 75.8° | 6.5 in | 19 | 97.3° (1999) | 64.6° (1986) |
| September | 81.7° | 71.8° | 4.8 in | 14 | 94.5° (2020) | 53.4° (1967) |
| October | 74.7° | 62.9° | 3.5 in | 8 | 90.5° (1986) | 41.5° (2017) |
| November | 66.9° | 54° | 2.6 in | 7 | 84° (1961) | 29.3° (1970) |
| December | 60.7° | 47.8° | 3.3 in | 8 | 76.3° (1978) | 14.9° (1989) |
Weather history
Temperature extremes over 66 years
October 20 temperatures in Sullivan's Island, SC over 66 years
high: 84.2° (2018)low: 44.2° (1972)
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64°Weather in Columbia, SC72°Weather in Columbus, OH66°Weather in Concord, NH55°Weather in Denver, CO71°Weather in Des Moines, IA72°Weather in Dover, DE62°Weather in Frankfort, KY71°Weather in Harrisburg, PA63°Weather in Hartford, CT63°Weather in Helena, MT61°Weather in Honolulu, HI79°Weather in Indianapolis, IN69°Weather in Jackson, MS78°Weather in Jefferson City, MO73°Weather in Juneau, AK41°Weather in Lansing, MI65°Weather in Lincoln, NE74°Weather in Little Rock, AR76°Weather in Madison, WI66°Weather in Montgomery, AL76°Weather in Montpelier, VT49°Weather in Nashville, TN75°Weather in Oklahoma City, OK75°Weather in Olympia, WA64°Weather in Phoenix, AZ91°Weather in Pierre, SD75°Weather in Providence, RI57°Weather in Raleigh, NC69°Weather in Richmond, VA65°Weather in Sacramento, CA69°Weather in Salem, OR72°Weather in Salt Lake City, UT73°Weather in San Juan, PR81°Weather in Santa Fe, NM68°Weather in Springfield, IL70°Weather in St. Paul, MN68°Weather in Tallahassee, FL74°Weather in Topeka, KS71°Weather in Trenton, NJ64°Weather in Washington, DC67°
58°Weather in Annapolis, MD66°Weather in Atlanta, GA74°Weather in Augusta, ME55°Weather in Austin, TX82°Weather in Baton Rouge, LA80°Weather in Bismarck, ND73°Weather in Boise, ID73°Weather in Boston, MA56°Weather in Carson City, NV69°Weather in Charleston, WV62°Weather in Charlotte Amalie, VI81°Weather in Cheyenne, WY64°Weather in Columbia, SC72°Weather in Columbus, OH66°Weather in Concord, NH55°Weather in Denver, CO71°Weather in Des Moines, IA72°Weather in Dover, DE62°Weather in Frankfort, KY71°Weather in Harrisburg, PA63°Weather in Hartford, CT63°Weather in Helena, MT61°Weather in Honolulu, HI79°Weather in Indianapolis, IN69°Weather in Jackson, MS78°Weather in Jefferson City, MO73°Weather in Juneau, AK41°Weather in Lansing, MI65°Weather in Lincoln, NE74°Weather in Little Rock, AR76°Weather in Madison, WI66°Weather in Montgomery, AL76°Weather in Montpelier, VT49°Weather in Nashville, TN75°Weather in Oklahoma City, OK75°Weather in Olympia, WA64°Weather in Phoenix, AZ91°Weather in Pierre, SD75°Weather in Providence, RI57°Weather in Raleigh, NC69°Weather in Richmond, VA65°Weather in Sacramento, CA69°Weather in Salem, OR72°Weather in Salt Lake City, UT73°Weather in San Juan, PR81°Weather in Santa Fe, NM68°Weather in Springfield, IL70°Weather in St. Paul, MN68°Weather in Tallahassee, FL74°Weather in Topeka, KS71°Weather in Trenton, NJ64°Weather in Washington, DC67°Weather in College Acres, SC66°Weather in Colleton, SC72°Weather in Collins Creek, SC65°Weather in Conch Creek, SC68°Weather in Concord, SC62°Weather in Concord Crossroads, SC64°Weather in Converse Heights, SC62°Weather in Corinth, SC64°Weather in Couchton, SC64°Weather in Crescent, SC62°Weather in Creston, SC68°Weather in Crosswell, SC61°Weather in Cumberland, SC66°Weather in Cunningham, SC60°Weather in Davidson, SC65°Weather in Davis Hill, SC60°Weather in Davis Station, SC62°Weather in Dawkins, SC59°Weather in Deas Mill, SC61°Weather in Deer Park, SC64°
66°Weather in Colleton, SC72°Weather in Collins Creek, SC65°Weather in Conch Creek, SC68°Weather in Concord, SC62°Weather in Concord Crossroads, SC64°Weather in Converse Heights, SC62°Weather in Corinth, SC64°Weather in Couchton, SC64°Weather in Crescent, SC62°Weather in Creston, SC68°Weather in Crosswell, SC61°Weather in Cumberland, SC66°Weather in Cunningham, SC60°Weather in Davidson, SC65°Weather in Davis Hill, SC60°Weather in Davis Station, SC62°Weather in Dawkins, SC59°Weather in Deas Mill, SC61°Weather in Deer Park, SC64°