United States · 1991–2020

Best time to visit
North Charleston.

April leads for comfortable weather in North Charleston: typically 25.1°C by day, 12.6°C at night, with 84 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortApril

Typical high25.1°C

Typical low12.6°C

Rain in April84 mm

Comfort

April

April · October · November

82climate match

Beach

May

May · September · June

77climate match

Outdoors

November

November · March · February

87climate match

The weakest month is July, scoring 30 against April’s 82 — days average 33°C, 9° above the 24°C the score treats as ideal, and 168 mm of rain falls.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

4215.7° / 3.9°

Feb

5317.7° / 5.4°

Mar

6921.2° / 8.6°

Apr

8225.1° / 12.6°

May

7028.7° / 17.3°

Jun

4031.5° / 21.4°

Jul

3033° / 23.3°

Aug

3232.1° / 22.9°

Sep

5029.7° / 20.3°

Oct

8125.5° / 14.3°

Nov

7120.7° / 8.5°

Dec

4917.1° / 5.4°

Monthly climate evidence for North Charleston — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 27 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	15.7°C	3.9°C	86 mm	7.1	16.2°C	10 h 12	42	Strong coverage
February	17.7°C	5.4°C	77 mm	6.7	15.5°C	10 h 58	53	Strong coverage
March	21.2°C	8.6°C	85 mm	6.7	16.3°C	11 h 53	69	Strong coverage
April	25.1°C	12.6°C	84 mm	6.4	18.9°C	12 h 57	82	Strong coverage
May	28.7°C	17.3°C	84 mm	6.2	22.9°C	13 h 50	70	Strong coverage
June	31.5°C	21.4°C	158 mm	10	26.4°C	14 h 18	40	Strong coverage
July	33°C	23.3°C	168 mm	11.2	28.3°C	14 h 07	30	Strong coverage
August	32.1°C	22.9°C	177 mm	10.8	28.4°C	13 h 22	32	Strong coverage
September	29.7°C	20.3°C	153 mm	8.4	27.1°C	12 h 20	50	Strong coverage
October	25.5°C	14.3°C	110 mm	5.6	24.0°C	11 h 18	81	Strong coverage
November	20.7°C	8.5°C	68 mm	5.2	20.2°C	10 h 25	71	Strong coverage
December	17.1°C	5.4°C	85 mm	7.1	18.0°C	10 h	49	Strong coverage

What has changed

North Charleston runs +1.2°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

+1.8

Feb

+2.9

Mar

+1.5

Apr

+1.2

May

+0.8

Jun

+1.0

Jul

+0.9

Aug

+0.5

Sep

+0.7

Oct

+0.8

Nov

+0.1

Dec

+1.8

April daytime highs, 2011–2025. Last recorded: 27.0°C.

Records at CHARLESTON INTL AP, 1937–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	28.3°C26 Jan 2024	-14.4°C21 Jan 1985	99 mm12 Jan 1993	227 mm1993 · driest 9 mm in 2013	89
February	30.6°C16 Feb 1989	-11.1°C12 Feb 1973	129 mm10 Feb 1940	266 mm2013 · driest 9 mm in 1947	89
March	32.2°C18 Mar 1963	-9.4°C3 Mar 1980	114 mm5 Mar 1959	282 mm1983 · driest 9 mm in 2004	90
April	35.0°C20 Apr 2002	-1.7°C6 Apr 1944	104 mm15 Apr 1958	241 mm1958 · driest 0 mm in 1972	90
May	38.3°C28 May 2019	2.2°C2 May 1963	158 mm22 May 1967	270 mm2018 · driest 7 mm in 1941	90
June	39.4°C24 Jun 1944	10.0°C2 Jun 1972	239 mm11 Jun 1973	692 mm1973 · driest 24 mm in 1954	90
July	40.0°C19 Jul 1986	14.4°C5 Jul 1952	137 mm3 Jul 1981	469 mm1964 · driest 45 mm in 1972	90
August	40.6°C1 Aug 1999	13.3°C18 Aug 1979	200 mm11 Aug 1940	438 mm1940 · driest 19 mm in 1980	89
September	37.2°C5 Sep 1944	5.6°C30 Sep 1967	267 mm21 Sep 1998	440 mm1945 · driest 5 mm in 1990	89
October	34.4°C4 Oct 2019	-2.8°C30 Oct 1952	292 mm3 Oct 2015	480 mm2015 · driest 0 mm in 2000	89
November	31.1°C1 Nov 1961	-9.4°C25 Nov 1950	133 mm1 Nov 1969	211 mm2015 · driest 1 mm in 2007	89
December	28.3°C11 Dec 1972	-13.3°C13 Dec 1962	102 mm23 Dec 1941	282 mm1941 · driest 9 mm in 2008	89

Typical days per month at CHARLESTON INTL AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	2	0	9	3
February	3	0	5	2
March	9	<1	2	3
April	18	3	0	3
May	28	12	0	3
June	29	23	0	5
July	31	29	0	5
August	31	27	0	5
September	28	17	0	4
October	19	3	0	3
November	7	<1	1	2
December	3	0	6	3

The best month has moved. On the 1961–1990 numbers the strongest month here was April (scoring 87); on 2011–2025 it is October (85). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in CHARLESTON INTL AP’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	19%	24%	9%	24%	12.3–18.9°C
February	27%	25%	9%	26%	14.0–19.9°C
March	46%	24%	11%	22%	18.1–23.2°C
April	72%	20%	8%	18%	23.2–26.5°C
May	78%	22%	10%	22%	27.0–29.7°C
June	68%	32%	15%	41%	29.5–33.1°C
July	63%	37%	18%	50%	31.0–33.7°C
August	66%	35%	16%	44%	30.8–33.2°C
September	73%	27%	12%	27%	28.0–31.0°C
October	76%	16%	7%	13%	23.4–26.9°C
November	49%	18%	6%	14%	18.5–22.8°C
December	24%	22%	9%	22%	14.0–19.5°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1938Each stripe is one year’s mean temperature against the 88-year average. Warmest: 1990. Coolest: 1940.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4589387
NOAA station: USW00013880 · CHARLESTON INTL AP
Station distance: 7.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 32.85°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 27 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from CHARLESTON INTL AP is what differs

Goose Creek→Hanahan→Ladson→Shell Point→The Farms→Archdale→

Or put two places side by side: North Charleston vs Goose Creek

Best time to visitNorth Charleston.

April

May

November

The whole year,without the guesswork.

North Charleston runs +1.2°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
North Charleston.

The whole year,
without the guesswork.

North Charleston runs +1.2°C
on the 1961–1990 baseline.

Nearby, measured,
and named.