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.

Thursday
24th Sep
29

28

7

9
Friday
25th Sep
29

28

5

8
Saturday
26th Sep
29

28

5

8
Sunday
27th Sep
28

27

5

8
Monday
28th Sep
28

27

2

7

5-day weather forecast updated at 04:02 on Thursday 24th 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 Thursday 24th 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 10-20 mm of rainfall expected with 67% 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)
67
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
15
kph wind from W

Cayo Guillermo weather for Friday 25th 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 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 72% chance of some rain and a gentle breeze of 19 kph from the west.

29
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
8
UV index (Very High)
72
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
19
kph wind from W

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 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 86% chance of some rain and a gentle breeze of 14 kph from the west.

29
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
8
UV index (Very High)
86
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
14
kph wind from W

Cayo Guillermo weather for Sunday 27th September 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 91% chance of some rain and a light breeze of 12 kph from the west.

28
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
8
UV index (Very High)
91
% chance of some rain
<20
mm of rainfall expected
L
low heat & humidity
12
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, low levels of heat & humidity, maximum UV of 7 (High) and 2 hours of bright sunshine. There are 10-20 mm of rainfall expected with 84% chance of some rain and a gentle breeze of 16 kph from the south-west.