Summerville weather in March

In March, Summerville sees average daytime highs of 69°F and overnight lows near 48°F, with 3.4 in of rain across 8.8 wet days and about 11.7 hours of daylight. It is the 8th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 66°F in the first days to 72°F by the end. The sky is clear or mostly clear about 38% of the time in March, and the air most often feels dry.

Daylight stretches from about 11 h 12 min at the start of March to 12 h 18 min by month's end. Set against the rest of the year, March is Summerville's 5th-clearest and 1st-windiest month. For the whole year in context, see Summerville's year-round climate.

Daytime high
69°
8th warmest
Overnight low
48°
5th coldest
Rainfall
3.4 in
8.8 wet days
Daylight
11 h 42 min
6:38 AM – 6:23 PM
Cloud cover
54%
5th clearest
Wind
7 mph
1st windiest
Solar energy
4.71 kWh/m²
Travel score
6.7
out of 10

Summerville is town in South Carolina, United States.

Density
974/km²
people per km²
Founded
1847

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 66°F in the first days to 72°F by the end.

A typical March day in Summerville reaches about 69°F in the afternoon and slips back to 48°F overnight — a 21°F spread between the day's warmth and the night's chill. On most days the high lands between 57°F and 80°F. Set against its neighbours, March runs about 6°F warmer than February and about 7°F cooler than April.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
16545
26645
36645
46645
56645
66645
76745
86746
96746
106746
116846
126847
136847
146847
156947
166948
176948
186948
196948
206949
217049
227049
237050
247150
257150
267150
277151
287251
297251
307251
317252

How March really feels in Summerville

Once humidity and wind are folded in, March averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

March sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Summerville weather by month

How March compares with the rest of the year at a glance. March is the 8th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan59° / 39°3.28.810.14.8
Feb62° / 42°3.28.110.85.5
Mar69° / 48°3.48.811.76.7
Apr76° / 55°3.17.912.87.3
May82° / 64°3.210.313.76.1
Jun87° / 71°5.816.914.13.8
Jul90° / 74°6.119143.1
Aug88° / 73°6.61913.23.5
Sep84° / 68°4.912.612.25.3
Oct76° / 57°3.77.611.27.3
Nov68° / 47°2.56.610.37.0
Dec61° / 42°3.47.99.95.4

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 14% of March, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25050
35248
45248
55248
65248
75347
85347
95248
105248
115248
125347
135248
145248
155248
165248
175248
185248
195248
205248
215149
225149
235248
245248
255149
265248
275248
285248
295248
305248
315149

Chance of precipitation in March

Any precipitation

Summerville gets around 3.4 in of rain over 8.8 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 28% and peaks near 29% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
129
229
328
428
527
627
727
826
926
1026
1126
1226
1326
1426
1527
1627
1727
1827
1928
2028
2129
2229
2329
2429
2529
2629
2729
2829
2929
3029
3129

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

Most of March feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, March lands in the dry band about 74% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1791290
2791290
3791290
4791290
5791290
6781390
7781390
8771490
9771490
10771580
11771580
12771580
13761680
14761680
15761680
16751690
17751690
18751690
19731791
20731791
217217101
227217101
237316101
247216111
257216111
267116112
277016122
287016122
296916132
306817132
316717142

Wind in March

Winds average 7 mph in March, the windiest month of the year.

Across March, daily wind ranges from about 7 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 12 min at the start of March to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over March. Sunrise moves from 6:57 AM to 6:18 AM, and sunset from 6:11 PM to 6:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:576:11
211.36:566:12
311.36:556:13
411.36:536:13
511.46:526:14
611.46:516:15
711.46:506:16
811.56:486:17
911.56:476:17
1011.56:466:18
1111.66:456:19
1211.66:436:20
1311.66:426:20
1411.76:416:21
1511.76:396:22
1611.76:386:23
1711.86:376:24
1811.86:356:24
1911.96:346:25
2011.96:336:26
2111.96:316:26
2212.06:306:27
2312.06:286:28
2412.06:276:29
2512.16:266:29
2612.16:246:30
2712.16:236:31
2812.26:226:32
2912.26:206:32
3012.26:196:33
3112.36:186:34

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.71 kWh/m².

For context, solar energy here swings from a low near 2.56 kWh/m² to a high of 6.29 kWh/m² in May across the year — March's 4.71 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.3Bright
44.3Bright
54.4Bright
64.4Bright
74.5Bright
84.5Bright
94.5Bright
104.6Bright
114.6Bright
124.6Bright
134.7Bright
144.7Bright
154.7Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.9Bright
214.9Bright
224.9Bright
235.0Bright
245.0Bright
255.0Bright
265.1Bright
275.1Bright
285.2Bright
295.2Bright
305.3Bright
315.3Bright
Planning a trip in March

Hazard calendar for Summerville

In seasonPeak

None of Summerville's seasonal hazards are active in March. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Summerville sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is March a good time to visit Summerville?

Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.7
Sightseeing
4th-best month of the year
3.7
Beach & pool
8th-best month of the year

March is a reasonable time to visit Summerville for sightseeing.

What to pack for Summerville in March

From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In March, Summerville sees daytime highs around 69°F and nights near 48°F. Worth packing: rain gear and sun protection. About 9 days see rain.

rain gearsun protection

Sea temperature near Summerville in March

The nearest coast averages about 61°F in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 27 mi away) is warmest in August at about 83°F and coldest in February near 59°F.

It's comfortable for a long swim from Apr 25 to Nov 14 — about 6.7 months when the water holds above 68°F.

60°70°80°90°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan60Cool
Feb59Cool
Mar61Cool
Apr66Cool
May73Refreshing
Jun80Warm
Jul83Tropical
Aug83Tropical
Sep81Warm
Oct75Refreshing
Nov67Cool
Dec63Cool

UV index in Summerville in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Summerville peaks around July 13 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 13UV 9Dec 19UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr7Very high
May8Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep7Very high
Oct5High
Nov4Moderate
Dec3Moderate

Air quality in Summerville in March

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where March falls, not just the annual average.

Air quality in Summerville is worst in March — around 20 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (December, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMar 1819 µg/m³Dec 177 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb12Good
Mar20Moderate
Apr14Moderate
May13Moderate
Jun16Moderate
Jul17Moderate
Aug15Moderate
Sep11Good
Oct8Good
Nov8Good
Dec7Good
Location & terrain

Where is Summerville?

Summerville sits at 33.0°N, 80.2°W, 89 ft above sea level, in United States. The nearest listed city is Goose Creek, 8.7 mi away.

Topography around Summerville

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Summerville.

Within 2 miles, the terrain around Summerville has only modest variations in elevation — a maximum elevation change of 115 ft around an average of 85 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 161 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 299 ft.

The land around Summerville is covered by trees (74%) within 2 miles, trees (79%) within 10 miles, and trees (62%) and water (24%) within 50 miles.

2 miles
115 ft
10 miles
161 ft
50 miles
299 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
March weather nearby: Goose Creek 8.7 mi · Hanahan 11 mi · North Charleston 16 mi · Charleston 22 mi · Mount Pleasant 24 mi · Sumter 63 mi · Hilton Head 65 mi · Hilton Head Island 66 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Summerville (33.0185°, -80.1757°, elevation 89 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).