United States · 1991–2020

Best time to visit
Henderson.

October leads for comfortable weather in Henderson: typically 26.2°C by day, 14.6°C at night, with 94 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high26.2°C

Typical low14.6°C

Rain in October94 mm

Comfort

October

October · April · November

82climate match

Beach

September

September · May · October

76climate match

Outdoors

November

November · February · March

87climate match

The weakest month is July, scoring 32 against October’s 82 — days average 33.6°C, 10° above the 24°C the score treats as ideal.

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

4616.4° / 4.3°

Feb

5818.5° / 5.9°

Mar

7222° / 9°

Apr

8125.8° / 12.7°

May

6729.4° / 17.3°

Jun

3732.1° / 21.3°

Jul

3233.6° / 23°

Aug

3632.8° / 22.8°

Sep

5430.3° / 20.4°

Oct

8226.2° / 14.6°

Nov

7421.3° / 8.7°

Dec

5217.7° / 5.8°

Monthly climate evidence for Henderson — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 39 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	16.4°C	4.3°C	83 mm	6.9	15.0°C	10 h 16	46	Strong coverage
February	18.5°C	5.9°C	71 mm	5.9	14.3°C	11 h	58	Strong coverage
March	22°C	9°C	89 mm	6.1	15.9°C	11 h 53	72	Strong coverage
April	25.8°C	12.7°C	86 mm	5.5	19.2°C	12 h 55	81	Strong coverage
May	29.4°C	17.3°C	92 mm	6.4	23.4°C	13 h 46	67	Strong coverage
June	32.1°C	21.3°C	169 mm	10	26.9°C	14 h 14	37	Strong coverage
July	33.6°C	23°C	146 mm	10.2	28.6°C	14 h 03	32	Strong coverage
August	32.8°C	22.8°C	139 mm	10.6	28.8°C	13 h 19	36	Strong coverage
September	30.3°C	20.4°C	110 mm	8	27.6°C	12 h 19	54	Strong coverage
October	26.2°C	14.6°C	94 mm	5.4	24.3°C	11 h 20	82	Strong coverage
November	21.3°C	8.7°C	61 mm	5.2	20.0°C	10 h 29	74	Strong coverage
December	17.7°C	5.8°C	81 mm	7	16.7°C	10 h 04	52	Strong coverage

What has changed

Henderson 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

+1.7

Feb

+2.9

Mar

+1.5

Apr

+0.9

May

+0.7

Jun

+0.7

Jul

+0.8

Aug

+0.7

Sep

+0.8

Oct

+1.0

Nov

+0.4

Dec

+1.9

October daytime highs, 2011–2025. Last recorded: 24.2°C.

Records at SAVANNAH INTL AP, 1948–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	28.9°C29 Jan 1957	-16.1°C21 Jan 1985	106 mm22 Jan 2017	228 mm1991 · driest 11 mm in 1989	79
February	30.6°C25 Feb 2018	-10.0°C18 Feb 1958	88 mm18 Feb 1964	248 mm2013 · driest 7 mm in 1991	79
March	32.8°C10 Mar 1974	-6.7°C3 Mar 1980	101 mm27 Mar 2016	247 mm1948 · driest 2 mm in 2004	79
April	35.0°C17 Apr 1967	-2.2°C8 Apr 2007	143 mm30 Apr 1976	269 mm1991 · driest 6 mm in 2025	79
May	38.9°C26 May 2019	3.9°C2 May 1963	168 mm22 May 2017	293 mm2017 · driest 9 mm in 2001	79
June	40.0°C2 Jun 1985	10.6°C1 Jun 1984	169 mm23 Jun 2014	365 mm1963 · driest 21 mm in 1954	79
July	40.6°C20 Jul 1986	16.1°C23 Jul 1966	136 mm10 Jul 1948	511 mm1964 · driest 31 mm in 2016	79
August	40.0°C5 Aug 1954	13.9°C29 Aug 1986	179 mm16 Aug 1971	433 mm1995 · driest 26 mm in 1980	78
September	37.2°C5 Sep 2020	6.1°C30 Sep 1967	215 mm5 Sep 1950	439 mm1950 · driest 9 mm in 1991	78
October	36.1°C4 Oct 2019	-2.2°C30 Oct 1952	227 mm7 Oct 2016	504 mm1994 · driest 0 mm in 2000	78
November	31.7°C1 Nov 1961	-9.4°C25 Nov 1950	111 mm7 Nov 2024	157 mm2019 · driest 0 mm in 2025	78
December	28.3°C11 Dec 1971	-12.8°C13 Dec 1962	181 mm21 Dec 2007	272 mm2009 · driest 3 mm in 1984	78

Typical days per month at SAVANNAH INTL AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	2	0	9	3
February	4	<1	4	2
March	10	1	2	2
April	19	5	<1	3
May	28	15	0	3
June	30	25	0	5
July	31	30	0	5
August	31	28	0	5
September	29	19	0	3
October	21	5	0	2
November	8	<1	1	2
December	4	0	6	2

How often, not how much — every day in SAVANNAH 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	22%	23%	8%	21%	13.3–19.8°C
February	33%	23%	9%	22%	14.8–20.9°C
March	52%	23%	10%	18%	19.3–24.0°C
April	76%	18%	8%	15%	23.9–27.2°C
May	78%	22%	10%	23%	27.7–30.6°C
June	68%	32%	14%	41%	30.3–33.7°C
July	65%	35%	16%	47%	31.9–34.5°C
August	65%	35%	17%	45%	31.2–33.7°C
September	73%	27%	12%	26%	28.8–31.6°C
October	79%	16%	6%	13%	24.1–27.5°C
November	54%	17%	6%	14%	19.3–23.3°C
December	28%	22%	8%	20%	14.8–19.9°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.

1948Each stripe is one year’s mean temperature against the 78-year average. Warmest: 2020. Coolest: 1969.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 7315244
NOAA station: USW00003822 · SAVANNAH INTL AP
Station distance: 14.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 32.01°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 39 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 SAVANNAH INTL AP is what differs

Savannah→Pooler→Wilmington Island→Richmond Hill→Georgetown→Rincon→

Or put two places side by side: Henderson vs Savannah

Best time to visitHenderson.

October

September

November

The whole year,without the guesswork.

Henderson runs +1.2°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Henderson.

The whole year,
without the guesswork.

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

Nearby, measured,
and named.