Cayo Guillermo weather live forecast

Today's maximum temperature in Cayo Guillermo is expected to be 28°C. Select a day from the live weather forecast for Cayo Guillermo, Cuba for more weather parameters.

Sunday
18th Oct
28

28

6

7
Monday
19th Oct
28

27

1

6
Tuesday
20th Oct
28

27

3

7
Wednesday
21st Oct
28

27

5

5
Thursday
22nd Oct
28

27

5

9

5-day weather forecast updated at 04:01 on Sunday 18th October 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 Sunday 18th October 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 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 86% chance of some rain and a moderate breeze of 26 kph from the north-east.

28
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
7
UV index (High)
86
% chance of some rain
<20
mm of rainfall expected
L
low heat & humidity
26
kph wind from NE

Cayo Guillermo weather for Monday 19th October 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 6 (High) and 1 hour of bright sunshine. There are 20-30 mm of rainfall expected with 97% chance of some rain and a moderate breeze of 27 kph from the north-east.

28
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
6
UV index (High)
97
% chance of some rain
<30
mm of rainfall expected
L
low heat & humidity
27
kph wind from NE

Cayo Guillermo weather for Tuesday 20th October 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 3 hours of bright sunshine. There are 20-30 mm of rainfall expected with 93% chance of some rain and a moderate breeze of 28 kph from the north-east.

28
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
7
UV index (High)
93
% chance of some rain
<30
mm of rainfall expected
L
low heat & humidity
28
kph wind from NE

Cayo Guillermo weather for Wednesday 21st October 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 84% chance of some rain and a moderate breeze of 27 kph from the north-east.

28
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
5
UV index (Moderate)
84
% chance of some rain
<10
mm of rainfall expected
L
low heat & humidity
27
kph wind from NE

Cayo Guillermo weather for Thursday 22nd October 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 9 (Very High) and 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 83% chance of some rain and a moderate breeze of 22 kph from the north-east.