Climate Sullivans Island - South Carolina
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 59 | 61 | 67 | 74 | 82 | 88 |
| Average low in ºF Av. low Lo | 37 | 39 | 45 | 54 | 64 | 71 |
| Av. precipitation in inch Av. precip. Pre. | 4.11 | 3.14 | 3.78 | 3.65 | 2.43 | 4.50 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 91 | 90 | 85 | 78 | 70 | 62 |
| Average low in ºF Av. low Lo | 74 | 73 | 68 | 58 | 49 | 40 |
| Av. precipitation in inch Av. precip. Pre. | 4.92 | 6.35 | 5.62 | 4.51 | 2.98 | 3.74 |
What is the average weather in Sullivans Island, South Carolina?
Sullivans Island experiences a humid subtropical climate, characterized by hot summers and cool winters. The area is fairly wet overall, with a moderate seasonal pattern that brings wetter conditions in summer. Heavy seasonal downpours or afternoon thunderstorms can sometimes occur during the warmer months, contributing to the abundant precipitation.
Sullivans Island Climate Graph - South Carolina Climate Chart
Daily normals Sullivans Island - South Carolina - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 59.0 | 37.1 | 0.12 | 0.12 | 0.00 | 0.00 |
| 2 Jan | 58.9 | 37.1 | 0.24 | 0.24 | 0.00 | 0.00 |
| 3 Jan | 58.8 | 37.0 | 0.35 | 0.35 | 0.00 | 0.00 |
| 4 Jan | 58.8 | 37.0 | 0.47 | 0.47 | 0.00 | 0.00 |
| 5 Jan | 58.7 | 37.0 | 0.59 | 0.59 | 0.00 | 0.00 |
| 6 Jan | 58.7 | 37.0 | 0.71 | 0.71 | 0.00 | 0.00 |
| 7 Jan | 58.6 | 37.0 | 0.83 | 0.83 | 0.00 | 0.00 |
| 8 Jan | 58.6 | 37.0 | 0.98 | 0.98 | 0.00 | 0.00 |
| 9 Jan | 58.6 | 37.0 | 1.10 | 1.10 | 0.00 | 0.00 |
| 10 Jan | 58.5 | 37.0 | 1.26 | 1.26 | 0.00 | 0.00 |
| 11 Jan | 58.5 | 37.0 | 1.42 | 1.42 | 0.00 | 0.00 |
| 12 Jan | 58.5 | 37.0 | 1.54 | 1.54 | 0.00 | 0.00 |
| 13 Jan | 58.5 | 37.1 | 1.69 | 1.69 | 0.00 | 0.00 |
| 14 Jan | 58.5 | 37.1 | 1.81 | 1.81 | 0.00 | 0.00 |
| 15 Jan | 58.5 | 37.1 | 1.97 | 1.97 | 0.00 | 0.00 |
| 16 Jan | 58.5 | 37.2 | 2.13 | 2.13 | 0.00 | 0.00 |
| 17 Jan | 58.5 | 37.2 | 2.24 | 2.24 | 0.00 | 0.00 |
| 18 Jan | 58.5 | 37.3 | 2.36 | 2.36 | 0.00 | 0.00 |
| 19 Jan | 58.6 | 37.3 | 2.52 | 2.52 | 0.00 | 0.00 |
| 20 Jan | 58.6 | 37.4 | 2.64 | 2.64 | 0.00 | 0.00 |
| 21 Jan | 58.6 | 37.4 | 2.80 | 2.80 | 0.00 | 0.00 |
| 22 Jan | 58.7 | 37.5 | 2.91 | 2.91 | 0.00 | 0.00 |
| 23 Jan | 58.7 | 37.5 | 3.03 | 3.03 | 0.00 | 0.00 |
| 24 Jan | 58.7 | 37.6 | 3.19 | 3.19 | 0.00 | 0.00 |
| 25 Jan | 58.8 | 37.6 | 3.31 | 3.31 | 0.00 | 0.00 |
| 26 Jan | 58.8 | 37.7 | 3.46 | 3.46 | 0.00 | 0.00 |
| 27 Jan | 58.9 | 37.8 | 3.58 | 3.58 | 0.00 | 0.00 |
| 28 Jan | 59.0 | 37.8 | 3.70 | 3.70 | 0.00 | 0.00 |
| 29 Jan | 59.0 | 37.9 | 3.86 | 3.86 | 0.00 | 0.00 |
| 30 Jan | 59.1 | 37.9 | 3.98 | 3.98 | 0.00 | 0.00 |
| 31 Jan | 59.2 | 38.0 | 4.09 | 4.09 | 0.00 | 0.00 |
Weather history Sullivans Island - April 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Apr | 70.0 | 63.0 | 0.00 | - | - |
| 02 Apr | 77.0 | 64.0 | 0.00 | - | - |
| 03 Apr | 72.0 | 66.9 | 0.00 | - | - |
| 04 Apr | 71.1 | 59.0 | 0.00 | - | - |
| 05 Apr | 81.0 | 59.0 | 0.00 | - | - |
| 06 Apr | 70.0 | 57.0 | 0.00 | - | - |
| 07 Apr | 66.9 | 52.0 | 0.00 | - | - |
| 08 Apr | 63.0 | 48.0 | 0.00 | - | - |
| 09 Apr | 70.0 | 50.0 | 0.00 | - | - |
| 10 Apr | 77.0 | 57.9 | 0.00 | - | - |
| 11 Apr | 73.9 | 59.0 | 0.00 | - | - |
| 12 Apr | 75.9 | 62.1 | 0.00 | - | - |
| 13 Apr | 75.9 | 63.0 | 0.00 | - | - |
| 14 Apr | 73.9 | 64.9 | 0.00 | - | - |
| 15 Apr | 77.0 | 66.9 | 0.00 | - | - |
| 16 Apr | 73.0 | 66.9 | 0.00 | - | - |
| 17 Apr | 82.9 | 69.1 | 0.00 | - | - |
| 18 Apr | 75.9 | 69.1 | 0.00 | - | - |
| 19 Apr | 73.9 | 50.0 | 0.00 | - | - |
| 20 Apr | 69.1 | 55.0 | 0.00 | - | - |
| 21 Apr | 70.0 | 61.0 | 0.00 | - | - |
| 22 Apr | 75.9 | 64.0 | 0.00 | - | - |
| 23 Apr | 79.0 | 64.9 | 0.00 | - | - |
| 24 Apr | 75.9 | 68.0 | 0.00 | - | - |
| 25 Apr | 78.1 | 68.0 | 0.00 | - | - |
| 26 Apr | 75.9 | 55.0 | 0.00 | - | - |
| 27 Apr | 63.0 | 55.0 | 0.03 | - | - |
| 28 Apr | 72.0 | 62.1 | 0.02 | - | - |
| 29 Apr | 77.0 | 66.9 | 0.00 | - | - |
| 30 Apr | 75.0 | 59.0 | 0.00 | - | - |
Past weather Sullivans Island
| Apr 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 73.7 ºF | 59 ºF | |
| Average low temperature Av. low temp. | 60.9 ºF | 37 ºF | |
| Total precipitation Total precip. | 0.05 inch | 4.11 inch | |
| Total snowfall Total snowfall | - inch | 0 inch | |
| Highest max temperature Highest max temp. | 82.9 ºF | - | |
| Lowest max temperature Lowest max temp. | 63.0 ºF | - | |
| Highest min temperature Highest min temp. | 69.1 ºF | - | |
| Lowest min temperature Lowest min temp. | 48.0 ºF | - | |
Past weather April 2026 incomplete - Missing data
Geo Sullivans Island - South Carolina
| Country | United States | |
|---|---|---|
| State | South Carolina | |
| County | Charleston | |
| City | Sullivans Island | |
| Zip Code | 29482 | |
| Longitude | -79.84 dec. degr. | |
| Latitude | 32.76 dec. degr. | |
| Altitude - Elevation | 10ft | |
| ICAO | - | |
| IATA | - |
Date and Time Sullivans Island - South Carolina
| Local Time | 10:48 PM | |
|---|---|---|
| Sunrise | 06:11 AM | |
| Sunset | 08:32 PM | |
| Day/Night | Night | |
| Timezone | Eastern Daylight Time | |
| Timezone DB | America - New York |
Map of Sullivans Island - South Carolina
USGS National Map — Open interactive map
Sullivans Island weather averages
| Annual high temperature | 75ºF |
| Annual low temperature | 56ºF |
| Average annual precip. | 49.73 inch |
Station Data
Monthly averages Sullivans Island
Longitude: -79.84, Latitude: 32.76
Average weather Sullivans Island, SC - 29482
Monthly: 1991-2020 normals
History: 2007-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...