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Weather in Sullivan's Island, SC
55°
Sullivan's Island, Wednesday, 21 October, 04:22
Partly cloudy. Feels like 54°. High 74°, low 51°.
Pressure30.12 inHg
Wind5.7 mph N 
Humidity69%
Visibility6.2 mi
Dew point44°
Wed, 21October
74°/51°
74°/51°Thu, 22October76°/47°
76°/47°Fri, 23October69°/52°
69°/52°Sat, 24October
71°/54°
71°/54°Sun, 25October72°/57°
72°/57°Mon, 26October72°/54°
72°/54°Tue, 27October71°/63°
71°/63° | 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° | 51° | 51° | 53° | 53° | 64° | 71° | 74° | 73° | 67° | 58° | 53° |
| Feels like | 73° | 49° | 49° | 51° | 51° | 63° | 70° | 73° | 72° | 66° | 57° | 50° |
Pressure, inHg  | 30.15 | 30.15 | 30.15 | 30.12 | 30.15 | 30.18 | 30.15 | 30.12 | 30.06 | 30.06 | 30.09 | 30.09 |
| Wind, mph | 3.9 | 3.9 | 3.9 | 3.8 | 3.8 | 3.3 | 3.6 | 3.2 | 3.4 | 2.4 | 2.6 | 2.1 |
Humidity, %  | 39% | 39% | 39% | 68% | 69% | 60% | 45% | 37% | 35% | 48% | 59% | 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 |
| 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° | 47° | 49° | 65° | 73° | 76° | 74° | 66° | 56° | 60° |
| Feels like | 49° | 47° | 46° | 45° | 47° | 64° | 72° | 75° | 73° | 65° | 55° | 60° |
| Pressure, inHg | 30.09 | 30.09 | 30.06 | 30.09 | 30.09 | 30.12 | 30.09 | 30.06 | 30.03 | 30.03 | 30.06 | 30.09 |
| Wind, mph | 1.6 | 2.3 | 2.3 | 2.5 | 2.3 | 1.9 | 2.5 | 2.5 | 0.9 | 1.2 | 0.9 | 0.8 |
| Humidity, % | 70% | 75% | 78% | 79% | 79% | 63% | 40% | 35% | 39% | 55% | 72% | 74% |
| 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 | 59° | 57° | 55° | 54° | 52° | 58° | 65° | 69° | 68° | 64° | 61° | 58° |
| Feels like | 58° | 56° | 54° | 52° | 50° | 57° | 63° | 67° | 67° | 63° | 59° | 57° |
| Pressure, inHg | 30.09 | 30.09 | 30.12 | 30.12 | 30.18 | 30.21 | 30.21 | 30.18 | 30.18 | 30.21 | 30.24 | 30.24 |
| Wind, mph | 0.7 | 1.9 | 3 | 3.3 | 3.8 | 3.6 | 3.9 | 3.6 | 4 | 4.1 | 3.1 | 2.6 |
| Humidity, % | 73% | 75% | 73% | 73% | 75% | 58% | 38% | 32% | 37% | 48% | 67% | 70% |
| 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° | 56° | 55° | 54° | 59° | 66° | 71° | 71° | 69° | 66° | 64° |
| Feels like | 56° | 56° | 55° | 53° | 52° | 57° | 65° | 70° | 70° | 68° | 65° | 63° |
| Pressure, inHg | 30.27 | 30.27 | 30.27 | 30.27 | 30.30 | 30.33 | 30.33 | 30.30 | 30.30 | 30.30 | 30.33 | 30.33 |
| Wind, mph | 4.3 | 5.3 | 5.6 | 5.5 | 5.6 | 5.3 | 5.4 | 5.7 | 5.7 | 5.7 | 5.7 | 5.6 |
| Humidity, % | 68% | 74% | 77% | 77% | 76% | 67% | 57% | 52% | 52% | 56% | 66% | 66% |
| 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 | 62° | 60° | 59° | 57° | 62° | 66° | 70° | 71° | 69° | 67° | 65° | 64° |
| Feels like | 61° | 59° | 58° | 56° | 61° | 65° | 70° | 71° | 69° | 66° | 65° | 63° |
| Pressure, inHg | 30.33 | 30.33 | 30.30 | 30.33 | 30.33 | 30.33 | 30.33 | 30.33 | 30.33 | 30.33 | 30.33 | 30.33 |
| Wind, mph | 5.6 | 5.6 | 5.3 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 |
| Humidity, % | 69% | 73% | 79% | 56% | 56% | 56% | 56% | 56% | 56% | 56% | 56% | 56% |
| 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 | — | — | — | — | — | — | — | — | — |
| 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 | 72° | 65° | 60° | 55° | 60° | 64° | 69° | 71° | 70° | 69° | 68° | 68° |
| Feels like | 72° | 65° | 59° | 53° | 58° | 64° | 69° | 71° | 70° | 69° | 68° | 68° |
| 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 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 |
| Humidity, % | 53% | 53% | 53% | 53% | 53% | 53% | 53% | 53% | 53% | 53% | 53% | 53% |
| 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 | 71° | 69° | 66° | 63° | 65° | 68° | 70° | 71° | 71° | 70° | 70° | 70° |
| Feels like | 71° | 69° | 66° | 63° | 65° | 68° | 70° | 71° | 71° | 71° | 71° | 71° |
| Pressure, inHg | 30.12 | 30.12 | 30.12 | 30.12 | 30.12 | 30.12 | 30.12 | 30.12 | 30.12 | 30.12 | 30.12 | 30.12 |
| Wind, mph | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
| Humidity, % | 71% | 71% | 71% | 71% | 71% | 71% | 71% | 71% | 71% | 71% | 71% | 71% |
| 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 12 min
Sunrise — 07:27
Sunset — 18:39
Sunrise and sunset in local time
Waxing gibbous, 76%
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 21 temperatures in Sullivan's Island, SC over 66 years
high: 81.0° (1962)low: 45.1° (1989)
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37°Weather in Lansing, MI43°Weather in Lincoln, NE58°Weather in Little Rock, AR54°Weather in Madison, WI45°Weather in Montgomery, AL50°Weather in Montpelier, VT32°Weather in Nashville, TN49°Weather in Oklahoma City, OK59°Weather in Olympia, WA43°Weather in Phoenix, AZ77°Weather in Pierre, SD46°Weather in Providence, RI48°Weather in Raleigh, NC49°Weather in Richmond, VA47°Weather in Sacramento, CA58°Weather in Salem, OR48°Weather in Salt Lake City, UT58°Weather in San Juan, PR75°Weather in Santa Fe, NM50°Weather in Springfield, IL45°Weather in St. Paul, MN52°Weather in Tallahassee, FL50°Weather in Topeka, KS56°Weather in Trenton, NJ48°Weather in Washington, DC50°
39°Weather in Annapolis, MD52°Weather in Atlanta, GA53°Weather in Augusta, ME41°Weather in Austin, TX59°Weather in Baton Rouge, LA54°Weather in Bismarck, ND46°Weather in Boise, ID51°Weather in Boston, MA47°Weather in Carson City, NV49°Weather in Charleston, WV41°Weather in Charlotte Amalie, VI82°Weather in Cheyenne, WY49°Weather in Columbia, SC48°Weather in Columbus, OH45°Weather in Concord, NH39°Weather in Denver, CO51°Weather in Des Moines, IA53°Weather in Dover, DE50°Weather in Frankfort, KY47°Weather in Harrisburg, PA44°Weather in Hartford, CT47°Weather in Helena, MT40°Weather in Honolulu, HI76°Weather in Indianapolis, IN47°Weather in Jackson, MS50°Weather in Jefferson City, MO50°Weather in Juneau, AK37°Weather in Lansing, MI43°Weather in Lincoln, NE58°Weather in Little Rock, AR54°Weather in Madison, WI45°Weather in Montgomery, AL50°Weather in Montpelier, VT32°Weather in Nashville, TN49°Weather in Oklahoma City, OK59°Weather in Olympia, WA43°Weather in Phoenix, AZ77°Weather in Pierre, SD46°Weather in Providence, RI48°Weather in Raleigh, NC49°Weather in Richmond, VA47°Weather in Sacramento, CA58°Weather in Salem, OR48°Weather in Salt Lake City, UT58°Weather in San Juan, PR75°Weather in Santa Fe, NM50°Weather in Springfield, IL45°Weather in St. Paul, MN52°Weather in Tallahassee, FL50°Weather in Topeka, KS56°Weather in Trenton, NJ48°Weather in Washington, DC50°Weather in College Acres, SC47°Weather in Colleton, SC46°Weather in Collins Creek, SC50°Weather in Conch Creek, SC53°Weather in Concord, SC47°Weather in Concord Crossroads, SC46°Weather in Converse Heights, SC47°Weather in Corinth, SC49°Weather in Couchton, SC48°Weather in Crescent, SC48°Weather in Creston, SC51°Weather in Crosswell, SC48°Weather in Cumberland, SC50°Weather in Cunningham, SC48°Weather in Davidson, SC50°Weather in Davis Hill, SC47°Weather in Davis Station, SC52°Weather in Dawkins, SC47°Weather in Deas Mill, SC45°Weather in Deer Park, SC53°
47°Weather in Colleton, SC46°Weather in Collins Creek, SC50°Weather in Conch Creek, SC53°Weather in Concord, SC47°Weather in Concord Crossroads, SC46°Weather in Converse Heights, SC47°Weather in Corinth, SC49°Weather in Couchton, SC48°Weather in Crescent, SC48°Weather in Creston, SC51°Weather in Crosswell, SC48°Weather in Cumberland, SC50°Weather in Cunningham, SC48°Weather in Davidson, SC50°Weather in Davis Hill, SC47°Weather in Davis Station, SC52°Weather in Dawkins, SC47°Weather in Deas Mill, SC45°Weather in Deer Park, SC53°