Measurements:
°C
°F
Cayo Largo
74°F
S 4 mph
Feels like: 80°F
Precip: 41%
World Resorts Cuba Cayo Largo Weather

7 Day Weather Forecast

09.30
wed
DAY
86°F
NW 5 mph
precip
56%
NIGHT
76°F
W 5 mph
precip
31%
10.01
thu
DAY
94°F
NW 7 mph
precip
9%
NIGHT
78°F
W 4 mph
precip
31%
10.02
fri
DAY
94°F
NW 4 mph
precip
13%
NIGHT
78°F
W 4 mph
precip
28%
10.03
sat
DAY
94°F
W 7 mph
precip
13%
NIGHT
78°F
SW 4 mph
precip
29%
10.04
sun
DAY
96°F
NW 5 mph
precip
3%
NIGHT
78°F
W 4 mph
precip
68%
10.05
mon
DAY
94°F
SW 4 mph
precip
3%
NIGHT
78°F
W 2 mph
precip
50%
10.06
tue
DAY
94°F
W 5 mph
precip
5%
NIGHT
80°F
NE 1 mph
precip
36%

Cayo Largo Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Cayo Largo was 31.1°F. The maximum and minimum values were 30.3°F and 32.0°F respectively.

Cayo Largo on the Weather Map

Best Time to Visit Cayo Largo
The most sunny months:
March 17 days
February 15 days
April 15 days
The most warm months:
August 92.3 °F
July 92.0 °F
September 90.8 °F
Warmest sea temperature:
August 91.4 °F
September 90.9 °F
July 90.7 °F
The most cold months:
January 80.6 °F
February 81.5 °F
December 83.0 °F
The most rainy months:
October 6 days
September 6 days
May 5 days
The most windy months:
November 14 mph
December 13 mph
January 13 mph