World Resorts Cuba Cayo Guillermo Weather

Cayo Guillermo 14 Days Forecast

15.07
wed
Day
84°F
W 18 mph
Precip.
9%
Night
82°F
W 17 mph
Precip.
14%
16.07
thu
Day
84°F
W 17 mph
Precip.
11%
Night
82°F
W 19 mph
Precip.
13%
17.07
fri
Day
84°F
W 17 mph
Precip.
20%
Night
82°F
W 19 mph
Precip.
9%
18.07
sat
Day
84°F
W 16 mph
Precip.
7%
Night
82°F
W 16 mph
Precip.
8%
19.07
sun
Day
82°F
W 11 mph
Precip.
7%
Night
82°F
W 17 mph
Precip.
14%
20.07
mon
Day
84°F
W 16 mph
Precip.
9%
Night
82°F
W 19 mph
Precip.
8%
21.07
tue
Day
84°F
W 16 mph
Precip.
7%
Night
82°F
W 17 mph
Precip.
17%
22.07
wed
Day
84°F
W 14 mph
Precip.
12%
Night
82°F
W 17 mph
Precip.
11%
23.07
thu
Day
82°F
W 13 mph
Precip.
8%
Night
82°F
W 16 mph
Precip.
19%
24.07
fri
Day
82°F
W 17 mph
Precip.
37%
Night
82°F
W 17 mph
Precip.
21%
25.07
sat
Day
84°F
W 16 mph
Precip.
16%
Night
82°F
W 19 mph
Precip.
29%
26.07
sun
Day
84°F
W 14 mph
Precip.
18%
Night
82°F
NW 12 mph
Precip.
12%
27.07
mon
Day
84°F
W 14 mph
Precip.
8%
Night
82°F
W 19 mph
Precip.
10%
28.07
tue
Day
84°F
W 17 mph
Precip.
7%
Night
84°F
W 19 mph
Precip.
8%

Sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 86.5°F. The highest and lowest sea temperatures during the month were 87.4°F and 85.6°F.

Air temperature in Cayo Guillermo, °F

Precipitation total in Cayo Guillermo, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Cayo Guillermo

Sunniest months:
April 14 days
March 13 days
May 12 days
Warmest months:
August 86.9 °F
July 86.5 °F
September 86.0 °F
Warmest sea temp:
September 86.0 °F
August 85.9 °F
July 85.2 °F
Coldest months:
January 76.6 °F
February 77.4 °F
March 78.3 °F
Rainiest months:
October 7 days
May 6 days
August 6 days
Windiest months:
March 14.7 mph
November 14.2 mph
December 14.0 mph

Cayo Guillermo on a weather map

Current weather
06:23
Cayo Guillermo
+82°F
W 17 mph
Feels like: +90°F
Precip.: 9%
Places in Cuba:
Name
°F
Baracoa
+79°F
Varadero
+79°F
Havana
+81°F
Cayo Santa Maria
+82°F
Cayo Guillermo
+82°F
Cayo Coco
+79°F
Cayo Largo
+77°F
Matanzas
+79°F
Holguin
+77°F
Pinar del Rio
+73°F
Playa Esmeralda
+81°F
Playa Blanca
+81°F
Santa Maria
+82°F
Santiago de Cuba
+72°F
Trinidad
+75°F
all places
24 Hours Forecast
Cayo Guillermo
Local time: 06:23
July 15, wednesday
0900
84°F
W
17 mph
1200
84°F
W
18 mph
1500
84°F
W
17 mph
1800
84°F
W
16 mph
2100
82°F
W
16 mph
July 16, thursday
0000
82°F
W
17 mph
0300
82°F
W
17 mph
0600
82°F
W
17 mph
Units of measurement: °C / °F