Cayo Guillermo weather live forecast

Today's maximum temperature in Cayo Guillermo is expected to be 30°C. Select a day from the live weather forecast for Cayo Guillermo, Cuba for more weather parameters.

Wednesday
9th Sep
30

29

7

9
Thursday
10th Sep
30

29

9

10
Friday
11th Sep
30

29

7

9
Saturday
12th Sep
30

29

6

10
Sunday
13th Sep
30

29

8

3

5-day weather forecast updated at 04:02 on Wednesday 9th September 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 Wednesday 9th September 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 67% chance of some rain and a moderate breeze of 27 kph from the east.

30
°C maximum temperature
29
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
9
UV index (Very High)
67
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
27
kph wind from E

Cayo Guillermo weather for Thursday 10th September 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 9 hours of bright sunshine. There are 5-10 mm of rainfall expected with 50% chance of some rain and a moderate breeze of 28 kph from the east.

30
°C maximum temperature
29
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
10
UV index (Very High)
50
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
28
kph wind from E

Cayo Guillermo weather for Friday 11th September 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 7 hours of bright sunshine. There are 10-20 mm of rainfall expected with 80% chance of some rain and a moderate breeze of 27 kph from the east.

30
°C maximum temperature
29
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
9
UV index (Very High)
80
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
27
kph wind from E

Cayo Guillermo weather for Saturday 12th September 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 81% chance of some rain and a moderate breeze of 26 kph from the south-east.

30
°C maximum temperature
29
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
10
UV index (Very High)
81
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
26
kph wind from SE

Cayo Guillermo weather for Sunday 13th September 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 3 (Moderate) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 41% chance of some rain and a fresh breeze of 30 kph from the east.