A consolidated reference for Guantanamo climate: monthly averages, rebuilt from public data on a schedule. Expect 24.9 C at the coldest (Jan) and 28.6 C at the warmest (Aug) — a 3.7 C spread. Expect a wet season rather than rain year-round: Oct brings 4.07 mm/day against 0.56 mm/day in Feb. Taken together that is roughly 569 mm of rain a year for the grid cell. The same build that regenerates the sitemap refreshes these values, and unchanged pages are left untouched. Scroll for the month-by-month figures, or jump to a neighbouring location from the links below.
Annual mean temperature 26.9 C
Warmest month Aug (28.6 C)
Coldest month Jan (24.9 C)
Wettest month Oct (4.07 mm/day)
All-time record high 35.2 C
All-time record low 17.7 C
Annual precipitation 569 mm / year
Coordinates 20.14444, -75.20917
Population 272,801
Average monthly temperature and rainfall in Guantanamo
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
24.9
0.67
31.5
17.9
Feb
25.2
0.56
32.3
18.1
Mar
25.7
0.62
34.2
18.3
Apr
26.8
0.95
34.3
20.7
May
27.4
1.99
34.5
21.1
Jun
28.1
2.05
35.2
23.4
Jul
28.5
1.18
35.0
24.7
Aug
28.6
1.42
35.2
24.0
Sep
28.5
2.18
35.0
24.4
Oct
27.5
4.07
34.0
21.4
Nov
26.3
2.11
33.5
20.0
Dec
25.6
0.91
32.5
17.7
What the Guantanamo climate table shows
Values are multi-decadal climatological averages for the 20.14444, -75.20917 grid cell, not a single year. Rain is the daily mean, so a value of 2.00 mm/day is about 60 mm across a 30-day month. Averages smooth over extremes, so use them for planning rather than for what to pack for next Tuesday.
Frequently asked questions
Is Guantanamo climate data a forecast?
No. These are multi-decadal averages for the grid cell, not a prediction for any particular year.
Why do the numbers differ from a weather app?
An app shows one location on one day. These are long-run averages, so they smooth out single hot or cold spells.