World Resorts Cuba Cayo Guillermo Weather

Cayo Guillermo Sea Temperature in July

Average sea water temperature in July:
+85.2°F
Minimum sea water temperature in July: 89.2°F
Maximum sea water temperature in July: 82.4°F

Daily sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 85.3°F. The highest and lowest sea temperatures during the month were 86.2°F and 83.8°F.

Monthly sea water temperature in Cayo Guillermo, °F

Which Cuba resorts have warmest sea in July?

Place name July 2025 July 2024
Pinar del Rio 87.4°F 87.6°F
Cayo Largo 87.1°F 86.7°F
Niquero 86.8°F 86.8°F
Manzanillo 86.6°F 86.7°F
Cienfuegos 86.3°F 86.2°F
Trinidad 86.0°F 86.0°F
Varadero 85.7°F 86.0°F
Santiago de Cuba 85.4°F 85.8°F
Cayo Coco 85.4°F 86.0°F
Cayo Guillermo 85.3°F 86.0°F
Santa Maria 85.1°F 85.8°F
Cayo Santa Maria 85.1°F 85.8°F
Havana 84.8°F 85.2°F
Matanzas 84.4°F 84.9°F
Playa Santa Lucia 83.9°F 84.8°F
Holguin 83.5°F 83.6°F
Playa Blanca 83.5°F 83.5°F
Playa Esmeralda 83.4°F 83.4°F
Baracoa 83.2°F 84.0°F

Best time for vacation in Cayo Guillermo

Sunniest months:
April 13 days
March 12 days
May 11 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 77.6 °F
March 78.4 °F
Rainiest months:
May 7 days
October 7 days
August 6 days
Windiest months:
March 14.5 mph
November 14.2 mph
December 14.0 mph

Cayo Guillermo on a weather map

Cayo Guillermo
+79°F
W 16 mph
Feels like: +82°F
Precip.: 0%
Places in Cuba:
Name
°F
+77°F
+75°F
+73°F
+72°F
+77°F
+75°F
+75°F
+72°F
+79°F
+72°F
24 Hours Forecast
Cayo Guillermo
Local time: 22:25
December 05, friday
0000
79°F
W
16 mph
0300
79°F
W
16 mph
0600
77°F
W
15 mph
0900
77°F
W
16 mph
1200
77°F
W
14 mph
1500
77°F
W
13 mph
1800
75°F
W
14 mph
2100
75°F
W
12 mph
Units of measurement: °C / °F