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Weather in Sullivan's Island, SC
76°
Sullivan's Island, Friday, 16 October, 20:46
Clear. Feels like 77°. High 86°, low 66°.
Pressure29.91 inHg
Wind5.7 mph S 
Humidity87%
Visibility6.2 mi
Dew point72°
Fri, 16October
86°/66°
86°/66°Sat, 17October
74°/54°
74°/54°Sun, 18October66°/48°
66°/48°Mon, 19October67°/51°
67°/51°Tue, 20October72°/51°
72°/51°Wed, 21October73°/53°
73°/53°Thu, 22October69°/53°
69°/53° | 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 | 85° | 73° | 70° | 66° | 72° | 77° | 83° | 84° | 81° | 78° | 76° | 75° |
| Feels like | 85° | 74° | 71° | 67° | 74° | 80° | 87° | 88° | 84° | 80° | 77° | 77° |
Pressure, inHg  | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 29.91 |
| Wind, mph | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.4 |
Humidity, %  | 61% | 61% | 61% | 61% | 61% | 61% | 61% | 61% | 61% | 61% | 61% | 86% |
| 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 |
| 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 | 74° | 72° | 70° | 68° | 68° | 66° | 62° | 61° | 63° | 62° | 60° | 55° |
| Feels like | 75° | 73° | 70° | 68° | 68° | 66° | 62° | 60° | 62° | 60° | 58° | 54° |
| Pressure, inHg | 29.91 | 29.91 | 29.88 | 29.91 | 29.97 | 30.03 | 30.09 | 30.12 | 30.12 | 30.18 | 30.21 | 30.27 |
| Wind, mph | 4.1 | 3.6 | 3.9 | 4.2 | 5 | 6.1 | 7.5 | 7.3 | 8 | 6 | 6.2 | 5.1 |
| Humidity, % | 86% | 85% | 76% | 78% | 82% | 85% | 74% | 71% | 65% | 65% | 67% | 69% |
| Precipitation | 0 in | 0 in | 0 in | 0 in | 0.01 in | 0.02 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 | 2.7 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 | 54° | 52° | 51° | 48° | 50° | 53° | 60° | 65° | 66° | 64° | 60° | 57° |
| Feels like | 52° | 50° | 48° | 43° | 48° | 51° | 58° | 63° | 65° | 62° | 59° | 56° |
| Pressure, inHg | 30.30 | 30.30 | 30.30 | 30.33 | 30.36 | 30.39 | 30.39 | 30.36 | 30.33 | 30.33 | 30.36 | 30.36 |
| Wind, mph | 5.4 | 6.1 | 6.5 | 6.3 | 5.8 | 6.2 | 5.8 | 4.8 | 4.5 | 4.4 | 4.5 | 5.1 |
| Humidity, % | 67% | 62% | 56% | 55% | 60% | 53% | 50% | 49% | 49% | 57% | 64% | 65% |
| 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 | 56° | 54° | 53° | 51° | 51° | 56° | 62° | 66° | 67° | 64° | 59° | 57° |
| Feels like | 54° | 53° | 51° | 50° | 49° | 54° | 61° | 65° | 66° | 63° | 58° | 56° |
| Pressure, inHg | 30.36 | 30.33 | 30.30 | 30.30 | 30.30 | 30.33 | 30.30 | 30.24 | 30.18 | 30.18 | 30.18 | 30.18 |
| Wind, mph | 4.9 | 4.9 | 4.9 | 4.8 | 4.8 | 5.2 | 4.8 | 4.4 | 4.4 | 3.8 | 2.7 | 2.5 |
| Humidity, % | 69% | 72% | 74% | 76% | 79% | 66% | 58% | 53% | 51% | 59% | 71% | 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 | 55° | 54° | 52° | 52° | 51° | 58° | 65° | 71° | 72° | 69° | 63° | 62° |
| Feels like | 54° | 52° | 51° | 50° | 50° | 57° | 63° | 69° | 70° | 68° | 62° | 60° |
| Pressure, inHg | 30.18 | 30.18 | 30.15 | 30.15 | 30.18 | 30.18 | 30.15 | 30.12 | 30.09 | 30.12 | 30.12 | 30.12 |
| Wind, mph | 3 | 3.2 | 3.6 | 4 | 4.2 | 4.4 | 4.2 | 3.6 | 3.7 | 3.5 | 3.1 | 4.6 |
| Humidity, % | 74% | 74% | 75% | 76% | 76% | 61% | 51% | 44% | 43% | 48% | 59% | 44% |
| 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 | — |
| 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° | 58° | 56° | 53° | 59° | 65° | 70° | 71° | 68° | 65° | 62° | 61° |
| Feels like | 73° | 56° | 54° | 52° | 58° | 63° | 69° | 70° | 67° | 64° | 61° | 60° |
| 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, % | 41% | 41% | 41% | 41% | 41% | 41% | 41% | 41% | 41% | 41% | 41% | 41% |
| 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 | 68° | 60° | 56° | 53° | 57° | 61° | 66° | 67° | 67° | 66° | 65° | 64° |
| Feels like | 68° | 59° | 55° | 51° | 56° | 60° | 65° | 67° | 66° | 65° | 64° | 63° |
| Pressure, inHg | 30.09 | 30.09 | 30.09 | 30.09 | 30.09 | 30.09 | 30.09 | 30.09 | 30.09 | 30.09 | 30.09 | 30.09 |
| Wind, mph | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 |
| Humidity, % | 55% | 55% | 55% | 55% | 55% | 55% | 55% | 55% | 55% | 55% | 55% | 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 | — | — | — | — | — | — | — | — | — | — | — | — |
Sun and moon today
Day length — 11 h 22 min
Sunrise — 07:23
Sunset — 18:45
Sunrise and sunset in local time
First quarter, 32%
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 16 temperatures in Sullivan's Island, SC over 66 years
high: 87.3° (2018)low: 50.7° (1988)
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