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Cuba · 1991–2020

Best time to visit
Naval Station Guantanamo Bay.

January leads for comfortable weather in Naval Station Guantanamo Bay: typically 29.9°C by day, 20.4°C at night, with 22 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJanuary

Typical high29.9°C

Typical low20.4°C

Rain in January22 mm

Comfort

January

January · February · March

71climate match

Beach

January

January · February · December

96climate match

Outdoors

January

January · February · December

52climate match

The weakest month is September, scoring 39 against January’s 71 — days average 32.7°C, 9° 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

7129.9° / 20.4°

Feb

7129.9° / 20.3°

Mar

6730° / 20.9°

Apr

6230.7° / 22.2°

May

4431.3° / 23.3°

Jun

5232.3° / 24.4°

Jul

5033.2° / 24.7°

Aug

4433.2° / 24.7°

Sep

3932.7° / 24.3°

Oct

4031.9° / 23.8°

Nov

5331.4° / 22.6°

Dec

6730.5° / 21.2°

Monthly climate evidence for Naval Station Guantanamo Bay — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 5 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	29.9°C	20.4°C	22 mm	2.1	27.0°C	11 h 03	71	Good coverage
February	29.9°C	20.3°C	26 mm	2.6	26.8°C	11 h 28	71	Good coverage
March	30°C	20.9°C	48 mm	3.9	26.8°C	11 h 59	67	Good coverage
April	30.7°C	22.2°C	51 mm	3.5	27.3°C	12 h 34	62	Good coverage
May	31.3°C	23.3°C	126 mm	7.8	28.1°C	13 h 04	44	Good coverage
June	32.3°C	24.4°C	55 mm	4.1	28.8°C	13 h 20	52	Good coverage
July	33.2°C	24.7°C	50 mm	3.6	29.2°C	13 h 14	50	Good coverage
August	33.2°C	24.7°C	80 mm	5.2	29.5°C	12 h 48	44	Good coverage
September	32.7°C	24.3°C	112 mm	8.1	29.7°C	12 h 14	39	Good coverage
October	31.9°C	23.8°C	135 mm	7.8	29.3°C	11 h 39	40	Good coverage
November	31.4°C	22.6°C	89 mm	4.6	28.6°C	11 h 10	53	Good coverage
December	30.5°C	21.2°C	35 mm	3.1	27.7°C	10 h 56	67	Good coverage

What has changed

Naval Station Guantanamo Bay runs +0.6°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

+0.6

Feb

+1.0

Mar

+0.7

Apr

+0.6

May

+0.5

Jun

+0.3

Jul

+0.7

Aug

+0.8

Sep

+0.5

Oct

+0.2

Nov

+0.3

Dec

+0.9

January daytime highs, 2011–2025. Last recorded: 30.5°C.

Records at GUANTANAMO BAY NAS, 1945–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	36.0°C22 Jan 2006	13.9°C20 Jan 1977	58 mm26 Jan 1958	115 mm1958 · driest 0 mm in 1959	80
February	35.0°C23 Feb 1987	13.9°C5 Feb 1958	66 mm15 Feb 2019	112 mm1978 · driest 0 mm in 2005	80
March	35.0°C30 Mar 2015	15.0°C13 Mar 1996	70 mm23 Mar 1998	129 mm2007 · driest 0 mm in 1980	79
April	35.0°C5 Apr 1987	17.2°C20 Apr 1968	99 mm29 Apr 1994	139 mm1994 · driest 0 mm in 1988	80
May	37.2°C29 May 1995	18.9°C4 May 1992	183 mm11 May 1977	477 mm1977 · driest 1 mm in 1984	80
June	37.2°C28 Jun 1985	20.0°C2 Jun 1948	257 mm7 Jun 2011	457 mm2011 · driest 0 mm in 1945	79
July	39.9°C28 Jul 2019	20.0°C16 Jul 1997	151 mm30 Jul 2004	208 mm2004 · driest 0 mm in 1991	80
August	38.9°C3 Aug 2017	20.0°C25 Aug 2008	147 mm26 Aug 2014	309 mm2006 · driest 0 mm in 2013	79
September	37.8°C5 Sep 2018	19.4°C13 Sep 1973	163 mm24 Sep 1998	457 mm1998 · driest 1 mm in 2021	79
October	38.3°C28 Oct 2018	18.9°C24 Oct 1992	193 mm5 Oct 1963	582 mm2007 · driest 5 mm in 2002	78
November	37.2°C8 Nov 1986	16.1°C30 Nov 2008	169 mm25 Nov 1993	383 mm1993 · driest 0 mm in 2010	79
December	35.0°C20 Dec 1989	13.9°C12 Dec 1981	87 mm23 Dec 2009	175 mm1980 · driest 0 mm in 2014	79

Typical days per month at GUANTANAMO BAY NAS, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	28	16	<1
February	26	14	<1
March	27	16	1
April	27	21	<1
May	28	25	2
June	28	27	1
July	29	29	1
August	29	29	1
September	28	27	2
October	30	28	3
November	29	25	2
December	28	20	<1

How often, not how much — every day in GUANTANAMO BAY NAS’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	92%	8%	2%	2%	27.8–31.2°C
February	91%	9%	3%	5%	27.8–31.2°C
March	90%	11%	4%	8%	28.4–31.3°C
April	89%	11%	4%	6%	29.1–31.9°C
May	81%	20%	8%	23%	29.5–32.6°C
June	84%	16%	6%	11%	30.8–33.4°C
July	89%	11%	4%	4%	31.5–34.4°C
August	84%	16%	5%	9%	31.6–34.4°C
September	79%	22%	8%	21%	31.5–33.9°C
October	73%	28%	13%	29%	30.6–33.2°C
November	84%	16%	5%	10%	29.7–32.7°C
December	90%	10%	3%	5%	28.6–31.8°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.

1946Each stripe is one year’s mean temperature against the 72-year average. Warmest: 2015. Coolest: 1950.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 13527055
NOAA station: CUW00011706 · GUANTANAMO BAY NAS
Station distance: 1.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 15 usable years
Daylight: Calculated from latitude 19.92°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 5 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 GUANTANAMO BAY NAS is what differs

Guantánamo→Yerba de Guinea→Yateritas→Vista Hermosa→Vilorio→Verraco→

Or put two places side by side: Naval Station Guantanamo Bay vs Guantánamo

Best time to visitNaval Station Guantanamo Bay.

January

January

January

The whole year,without the guesswork.

Naval Station Guantanamo Bay runs +0.6°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Naval Station Guantanamo Bay.

The whole year,
without the guesswork.

Naval Station Guantanamo Bay runs +0.6°C
on the 1961–1990 baseline.

Nearby, measured,
and named.