Cayo Guillermo weather live forecast

Today's maximum temperature in Cayo Guillermo is expected to be 79°F. Select a day from the live weather forecast for Cayo Guillermo, Cuba for more weather parameters.

Tuesday
10th Mar
79

77

7

9
Wednesday
11th Mar
79

75

8

9
Thursday
12th Mar
79

75

9

9
Friday
13th Mar
79

75

9

9
Saturday
14th Mar
79

75

8

10

5-day weather forecast updated at 04:02 on Tuesday 10th March 2026 GMT

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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 10th March 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 9 (Very High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 19% chance of some rain and a moderate breeze of 17 mph from the east.

79
°F maximum temperature
77
°F minimum temperature
isolated thunderstorms
7
hours of sunshine
9
UV index (Very High)
19
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
17
mph wind from E

Cayo Guillermo weather for Wednesday 11th March 2026

Expect scattered clouds in Cayo Guillermo, Cuba with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 9 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 17 mph from the east.

79
°F maximum temperature
75
°F minimum temperature
scattered clouds
8
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
17
mph wind from E

Cayo Guillermo weather for Thursday 12th March 2026

Expect scattered clouds in Cayo Guillermo, Cuba with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 9 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 14 mph from the east.

79
°F maximum temperature
75
°F minimum temperature
scattered clouds
9
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
14
mph wind from E

Cayo Guillermo weather for Friday 13th March 2026

79
°F maximum temperature
75
°F minimum temperature
scattered clouds
9
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
11
mph wind from E

Cayo Guillermo weather for Saturday 14th March 2026

Expect scattered clouds in Cayo Guillermo, Cuba with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 10 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 12 mph from the east.