World Resorts Cuba Cayo Guillermo Weather

Cayo Guillermo 7 Days Forecast

15.03
sun
Day
79°F
W 16 mph
Precip.
0%
Night
77°F
NW 19 mph
Precip.
0%
16.03
mon
Day
79°F
NW 9 mph
Precip.
0%
Night
77°F
N 9 mph
Precip.
0%
17.03
tue
Day
77°F
SE 6 mph
Precip.
100%
Night
75°F
W 10 mph
Precip.
0%
18.03
wed
Day
77°F
SW 11 mph
Precip.
100%
Night
73°F
SW 17 mph
Precip.
100%
19.03
thu
Day
75°F
W 13 mph
Precip.
100%
Night
72°F
W 8 mph
Precip.
81%
20.03
fri
Day
73°F
SW 17 mph
Precip.
100%
Night
75°F
SW 21 mph
Precip.
100%
21.03
sat
Day
75°F
SW 18 mph
Precip.
49%
Night
73°F
SW 16 mph
Precip.
0%

Sea water temperature in March, °F

Show year:
2026
2025
2024

The average sea water temperature in March of 2026 was 78.6°F. The highest and lowest sea temperatures during the month were 79.9°F and 77.2°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 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 77.4 °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

Current weather
19:40
Cayo Guillermo
+77°F
W 21 mph
Feels like: +82°F
Precip.: 0%
Places in Cuba:
Name
°F
Varadero
+75°F
Havana
+77°F
Cayo Santa Maria
+77°F
Cayo Guillermo
+77°F
Cayo Coco
+75°F
Cayo Largo
+79°F
Matanzas
+75°F
Holguin
+75°F
Playa Esmeralda
+77°F
Playa Blanca
+77°F
Playa Santa Lucia
+77°F
Santa Maria
+77°F
Santiago de Cuba
+75°F
Cienfuegos
+75°F
Trinidad
+73°F
all places
24 Hours Forecast
Cayo Guillermo
Local time: 19:40
March 15, sunday
2100
77°F
W
21 mph
March 16, monday
0000
77°F
NW
19 mph
0300
77°F
NW
17 mph
0600
77°F
NW
14 mph
0900
77°F
NW
12 mph
1200
79°F
NW
9 mph
1500
79°F
SW
12 mph
1800
79°F
W
9 mph
Units of measurement: °C / °F