As of 18:19 EDT

Weather in Sullivan's Island, SC

64°

Sullivan's Island, Sunday, 18 October, 18:19

Clear. Feels like 63°. High 65°, low 47°.

Pressure30.36 inHg

Wind5 mph NE

Humidity67%

Visibility6.2 mi

Dew point52°

Sun, 18October

65°/47°

Mon, 19October

67°/48°

Tue, 20October

73°/49°

Wed, 21October

72°/53°

Thu, 22October

70°/51°

Fri, 23October

69°/52°

Sat, 24October

70°/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	64°	53°	50°	47°	52°	57°	61°	64°	64°	63°	62°	57°
Feels like	64°	50°	46°	42°	48°	54°	60°	62°	62°	62°	61°	56°
Pressure, inHg	30.36	30.36	30.36	30.36	30.36	30.36	30.36	30.36	30.36	30.36	30.36	30.36
Wind, mph	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	6.5	5.1	5.4
Humidity, %	59%	59%	59%	59%	59%	59%	59%	59%	59%	59%	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

	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	52°	49°	50°	49°	49°	55°	62°	66°	67°	64°	56°	54°
Feels like	50°	45°	48°	45°	45°	54°	61°	65°	65°	63°	54°	52°
Pressure, inHg	30.33	30.33	30.30	30.30	30.30	30.30	30.30	30.24	30.21	30.21	30.21	30.21
Wind, mph	5.2	4.8	4.8	5	4.8	4.8	4.4	3.7	3.7	3.5	3.1	2.8
Humidity, %	69%	72%	74%	77%	78%	65%	57%	52%	51%	58%	69%	69%
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	51°	49°	52°	51°	51°	58°	66°	71°	73°	69°	63°	60°
Feels like	49°	46°	50°	50°	49°	57°	65°	70°	72°	68°	61°	58°
Pressure, inHg	30.21	30.21	30.18	30.18	30.18	30.21	30.21	30.15	30.12	30.15	30.15	30.15
Wind, mph	2.9	3.2	3.5	3.6	3.8	3.5	3.8	3.7	3.6	2.7	3.2	3.6
Humidity, %	74%	74%	74%	73%	72%	60%	46%	38%	34%	47%	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	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°	56°	55°	54°	53°	59°	66°	71°	72°	68°	62°	59°
Feels like	56°	55°	53°	52°	51°	58°	65°	69°	70°	67°	60°	57°
Pressure, inHg	30.15	30.15	30.15	30.15	30.15	30.18	30.18	30.15	30.09	30.09	30.12	30.12
Wind, mph	3.6	3.6	3.8	3.9	4	3.8	3.2	2.8	2.7	1.7	2.1	2.3
Humidity, %	59%	66%	70%	74%	77%	69%	56%	46%	43%	54%	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	57°	55°	54°	52°	51°	59°	66°	70°	69°	66°	60°	59°
Feels like	56°	54°	52°	51°	50°	58°	64°	69°	68°	65°	59°	58°
Pressure, inHg	30.12	30.12	30.12	30.12	30.15	30.15	30.12	30.09	30.09	30.09	30.09	30.09
Wind, mph	2	2.5	2.5	2.6	2.9	2.9	2.8	2.6	1.7	1.6	3	3
Humidity, %	65%	69%	74%	78%	80%	63%	50%	39%	46%	58%	39%	39%
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	69°	57°	55°	52°	57°	62°	66°	68°	65°	63°	61°	60°
Feels like	69°	56°	53°	51°	55°	60°	65°	66°	64°	62°	60°	59°
Pressure, inHg	30.21	30.21	30.21	30.21	30.21	30.21	30.21	30.21	30.21	30.21	30.21	30.21
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, %	37%	37%	37%	37%	37%	37%	37%	37%	37%	37%	37%	37%
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°	65°	59°	53°	57°	62°	66°	69°	69°	70°	69°	69°
Feels like	69°	64°	58°	51°	56°	61°	66°	68°	69°	69°	69°	69°
Pressure, inHg	30.33	30.33	30.33	30.33	30.33	30.33	30.33	30.33	30.33	30.33	30.33	30.33
Wind, mph	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8
Humidity, %	61%	61%	61%	61%	61%	61%	61%	61%	61%	61%	61%	61%
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	—	—	—	—	—	—	—	—	—	—	—	—

See detailed hourly forecast

Sun and moon today

Day length — 11 h 18 min

Sunrise — 07:25

Sunset — 18:43

Sunrise and sunset in local time

First quarter, 52%

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)