Cayo Guillermo weather live forecast

Today's maximum temperature in Cayo Guillermo is expected to be 77°F. Select a day from the live weather forecast for Cayo Guillermo, Cuba for more weather parameters.

Tuesday
30th Dec
77

73

7

5
Wednesday
31st Dec
73

70

3

4
Thursday
1st Jan
72

68

5

5
Friday
2nd Jan
72

68

6

6
Saturday
3rd Jan
75

70

6

5

5-day weather forecast updated at 04:02 on Tuesday 30th December 2025 GMT

More about Cayo Guillermo

Cayo Guillermo by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Cuba

Marella Cruises: up to £300 off 2026/2027 sailings

Discount Code

Save up to £300 on sailings (1 Apr 2026-30 Apr 2027)
Book online in Marella Cruises sale with myTUI account
Discount varies on destination. Min 7 nights duration

Show discount code

******WAY

Redeem Marella Cruises discount code >>

Expires at 23:59 on Saturday 31st Jan 2026 · View all Marella Cruises offers

Cruise deal finder

Destination

The 5-day weather forecast for Cuba (Cayo Guillermo) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Cayo Guillermo weather forecast by day

Below are the detailed weather forecasts for Cayo Guillermo for the next 5 days.

Cayo Guillermo weather for Tuesday 30th December 2025

Expect scattered clouds in Cayo Guillermo, Cuba with a maximum temperature of 77°F, maximum UV of 5 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the north-west.

77
°F maximum temperature
73
°F minimum temperature
scattered clouds
7
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
77
°F wind chill
11
mph wind from NW

Cayo Guillermo weather for Wednesday 31st December 2025

Expect broken clouds in Cayo Guillermo, Cuba with a maximum temperature of 73°F, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 13 mph from the north.

73
°F maximum temperature
70
°F minimum temperature
broken clouds
3
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
13
mph wind from N

Cayo Guillermo weather for Thursday 1st January 2026

Expect broken clouds in Cayo Guillermo, Cuba with a maximum temperature of 72°F, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 12 mph from the north.

72
°F maximum temperature
68
°F minimum temperature
broken clouds
5
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
72
°F wind chill
12
mph wind from N

Cayo Guillermo weather for Friday 2nd January 2026

Expect scattered clouds in Cayo Guillermo, Cuba with a maximum temperature of 72°F, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 9 mph from the north-east.

72
°F maximum temperature
68
°F minimum temperature
scattered clouds
6
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
9
mph wind from NE

Cayo Guillermo weather for Saturday 3rd January 2026

Expect scattered clouds in Cayo Guillermo, Cuba with a maximum temperature of 75°F, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 8 mph from the east.