Summerville, South Carolina Climate
United States
Pop. 48,848 Elev. 25 m / 82 ft
TZ: America/New_York (UTC-4) ·
Summerville has warm summers with average highs of 91°F (33°C) in July, and cool winters averaging 33°F (1°C) in January. Humidity pushes the summer feels-like temperature to around 116°F (47°C). Rain falls on about 72 days per year (49.8 in / 1265 mm total), with snow on 1 days and 7 in (176 mm) of annual accumulation. The city averages 149 sunny days per year and around 60 thunderstorm days. Ocean water temperatures reach 86°F (30°C) in summer.
| Temperature | 91°F (33°C) high | 33°F (1°C) low |
| Feels like | 116°F (47°C) high | 30°F (-1°C) low |
| Rain | 72 days | 49.8 in (1265 mm) /yr |
| Snow | 1 days | 6.9 in (176 mm) /yr |
| Sky | 149 sunny | 60 stormy |
| Wind | 2.7 mph (1.2 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Feb, Mar, Apr, May, Sep, Nov, Dec
Sky & Air by Month
Cloud cover (%)
38
Jan 49
Feb 40
Mar 49
Apr 65
May 55
Jun 64
Jul 73
Aug 46
Sep 50
Oct 31
Nov 47
Dec Humidity (%)
57
Jan 63
Feb 53
Mar 67
Apr 69
May 74
Jun 78
Jul 81
Aug 75
Sep 74
Oct 66
Nov 69
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 12 mi Charleston International Airport (CHS)
Ski resort 234 mi Appalachian Mountain Ski Area
National park 21 mi Fort Sumter and Fort Moultrie National Historical Park, Liberty Square
Mountain peak
(5,053 ft) 220 mi Green Knob
Hospital 4 mi Palmetto Behavioral Health - Summerville
Hiking trail 24 mi Palmetto Trail: Lake Moultrie Passage
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 54°F 12°C | 33°F 1°C | 1.2 in 31 mm | 6.9 in176 mm | 18 |
| February | 68°F 20°C | 45°F 7°C | 1.1 in 29 mm | — | 12 |
| March | 73°F 23°C | 50°F 10°C | 4.6 in 117 mm | — | 17 |
| April | 79°F 26°C | 59°F 15°C | 2.1 in 53 mm | — | 12 |
| May | 85°F 29°C | 67°F 19°C | 4.8 in 122 mm | — | 7 |
| June | 90°F 32°C | 73°F 23°C | 6.0 in 152 mm | — | 11 |
| July | 91°F 33°C | 76°F 24°C | 8.2 in 208 mm | — | 6 |
| August | 86°F 30°C | 73°F 23°C | 8.7 in 220 mm | — | 4 |
| September | 84°F 29°C | 66°F 19°C | 3.2 in 81 mm | — | 15 |
| October | 74°F 23°C | 56°F 14°C | 7.1 in 181 mm | — | 14 |
| November | 71°F 22°C | 47°F 9°C | 0.4 in 10 mm | — | 19 |
| December | 61°F 16°C | 42°F 6°C | 2.5 in 62 mm | — | 14 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 18 | 0 |
| February | 12 | 1 |
| March | 17 | 4 |
| April | 12 | 1 |
| May | 7 | 8 |
| June | 11 | 9 |
| July | 6 | 14 |
| August | 4 | 11 |
| September | 15 | 4 |
| October | 14 | 6 |
| November | 19 | 0 |
| December | 14 | 2 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 57°F 14°C | 43°F 6°C |
| February | 56°F 13°C | 56°F 13°C |
| March | 64°F 18°C | 59°F 15°C |
| April | 72°F 22°C | 69°F 21°C |
| May | 77°F 25°C | 75°F 24°C |
| June | 83°F 28°C | 82°F 28°C |
| July | 86°F 30°C | 84°F 29°C |
| August | 86°F 30°C | 81°F 27°C |
| September | 81°F 27°C | 76°F 24°C |
| October | 78°F 25°C | 66°F 19°C |
| November | 66°F 19°C | 58°F 14°C |
| December | 61°F 16°C | 50°F 10°C |