United States · 1991–2020

Best time to visit
Key Largo.

January leads for comfortable weather in Key Largo: typically 24.1°C by day, 17.4°C at night, with 51 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJanuary

Typical high24.1°C

Typical low17.4°C

Rain in January51 mm

Comfort

January

January · February · December

92climate match

Beach

April

April · November · March

94climate match

Outdoors

January

January · February · December

71climate match

The weakest month is September, scoring 26 against January’s 92 — 208 mm of rain falls, and days average 31.1°C, 7° 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

9224.1° / 17.4°

Feb

8825° / 18.1°

Mar

8026.3° / 19.6°

Apr

7527.9° / 21.5°

May

5829.5° / 23.7°

Jun

3630.9° / 25.2°

Jul

4131.8° / 26.1°

Aug

2932° / 26°

Sep

2631.1° / 25.4°

Oct

4329.4° / 23.9°

Nov

7526.9° / 20.9°

Dec

8725° / 18.7°

Monthly climate evidence for Key Largo — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 8 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	24.1°C	17.4°C	51 mm	3.9	24.0°C	10 h 44	92	Good coverage
February	25°C	18.1°C	53 mm	3.2	24.0°C	11 h 17	88	Good coverage
March	26.3°C	19.6°C	56 mm	4.3	24.5°C	11 h 56	80	Good coverage
April	27.9°C	21.5°C	39 mm	3.5	25.7°C	12 h 43	75	Good coverage
May	29.5°C	23.7°C	78 mm	4.6	27.0°C	13 h 21	58	Good coverage
June	30.9°C	25.2°C	163 mm	9	28.6°C	13 h 41	36	Good coverage
July	31.8°C	26.1°C	97 mm	8.3	29.4°C	13 h 33	41	Good coverage
August	32°C	26°C	160 mm	10.6	29.9°C	13 h 01	29	Good coverage
September	31.1°C	25.4°C	208 mm	11.6	29.4°C	12 h 16	26	Good coverage
October	29.4°C	23.9°C	154 mm	9.7	28.1°C	11 h 32	43	Good coverage
November	26.9°C	20.9°C	62 mm	4.8	26.3°C	10 h 53	75	Good coverage
December	25°C	18.7°C	45 mm	4.5	25.2°C	10 h 35	87	Good coverage

Records at TAVERNIER, 1936–2009
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	30.6°C5 Jan 1942	1.7°C13 Jan 1981	150 mm23 Jan 1983	390 mm1983 · driest 0 mm in 1971	71
February	30.6°C26 Feb 1944	3.9°C5 Feb 1996	139 mm3 Feb 1998	199 mm1998 · driest 0 mm in 1944	70
March	32.2°C30 Mar 1980	4.4°C3 Mar 1980	100 mm20 Mar 1948	132 mm1998 · driest 0 mm in 1945	70
April	34.4°C28 Apr 1988	10.6°C14 Apr 1940	166 mm26 Apr 1982	274 mm1982 · driest 0 mm in 1970	72
May	34.4°C10 May 1942	16.1°C3 May 1941	168 mm1 May 2003	352 mm1968 · driest 2 mm in 2008	72
June	36.1°C23 Jun 1944	18.3°C19 Jun 1965	350 mm2 Jun 1982	554 mm1967 · driest 9 mm in 1950	68
July	36.1°C17 Jul 1981	20.6°C3 Jul 1955	138 mm14 Jul 1953	313 mm1949 · driest 12 mm in 1967	69
August	36.7°C14 Aug 1957	18.9°C30 Aug 1953	142 mm23 Aug 1945	282 mm1936 · driest 13 mm in 1972	71
September	36.7°C3 Sep 1963	18.9°C27 Sep 1981	163 mm8 Sep 1965	511 mm1940 · driest 50 mm in 1986	69
October	34.4°C1 Oct 1980	12.8°C30 Oct 1937	234 mm25 Oct 1943	439 mm1947 · driest 18 mm in 1974	72
November	32.2°C4 Nov 1980	5.6°C25 Nov 1970	153 mm14 Nov 1954	290 mm1943 · driest 1 mm in 1970	70
December	31.7°C1 Dec 1988	1.7°C24 Dec 1989	166 mm6 Dec 1942	223 mm1958 · driest 1 mm in 1968	71

Typical days per month at TAVERNIER, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	15	0	1
February	18	<1	1
March	23	<1	2
April	27	4	1
May	29	14	2
June	29	24	5
July	28	26	3
August	29	27	4
September	28	24	6
October	29	14	4
November	23	1	1
December	19	<1	1

How often, not how much — every day in TAVERNIER’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	79%	13%	5%	7%	22.8–26.2°C
February	82%	14%	5%	8%	22.8–27.0°C
March	87%	12%	5%	7%	24.9–27.7°C
April	88%	12%	5%	8%	27.0–29.5°C
May	81%	19%	9%	19%	28.7–30.7°C
June	70%	30%	15%	38%	29.9–32.4°C
July	71%	29%	11%	35%	31.0–33.6°C
August	67%	33%	13%	45%	31.1–33.3°C
September	60%	40%	18%	55%	30.3–32.5°C
October	68%	32%	14%	39%	28.3–30.6°C
November	83%	16%	5%	11%	25.4–28.4°C
December	82%	14%	5%	9%	23.6–26.6°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.

1937Each stripe is one year’s mean temperature against the 59-year average. Warmest: 1990. Coolest: 1937.2008

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4160795
NOAA station: USC00088841 · TAVERNIER
Station distance: 11.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 17 usable years
Daylight: Calculated from latitude 25.09°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 8 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 TAVERNIER is what differs

Tavernier→Plantation→Plantation Key→Plantation Key Colony→Rock Harbor→Sunset Point→

Or put two places side by side: Key Largo vs Tavernier

Best time to visitKey Largo.

January

April

January

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Key Largo.

The whole year,
without the guesswork.

Nearby, measured,
and named.