Cayo Guillermo weather live forecast

Today's maximum temperature in Cayo Guillermo is expected to be 29°C. Select a day from the live weather forecast for Cayo Guillermo, Cuba for more weather parameters.

Saturday
26th Sep
29

28

6

8
Sunday
27th Sep
29

28

7

9
Monday
28th Sep
28

27

7

7
Tuesday
29th Sep
29

27

6

8
Wednesday
30th Sep
29

28

4

5

5-day weather forecast updated at 04:02 on Saturday 26th 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 Saturday 26th September 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 86% chance of some rain and a moderate breeze of 21 kph from the west.

29
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
8
UV index (Very High)
86
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
21
kph wind from W

Cayo Guillermo weather for Sunday 27th September 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 47% chance of some rain and a gentle breeze of 15 kph from the west.

29
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
9
UV index (Very High)
47
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
15
kph wind from W

Cayo Guillermo weather for Monday 28th September 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 74% chance of some rain and a light breeze of 12 kph from the south-west.

28
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
7
UV index (High)
74
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
12
kph wind from SW

Cayo Guillermo weather for Tuesday 29th September 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 73% chance of some rain and a moderate breeze of 25 kph from the east.

29
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
8
UV index (Very High)
73
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
25
kph wind from E

Cayo Guillermo weather for Wednesday 30th September 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 88% chance of some rain and a fresh breeze of 33 kph from the east.