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.

Tuesday
4th Aug
30

29

8

11
Wednesday
5th Aug
30

29

9

10
Thursday
6th Aug
29

29

7

10
Friday
7th Aug
30

28

7

10
Saturday
8th Aug
30

29

10

11

5-day weather forecast updated at 04:01 on Tuesday 4th August 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 4th August 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 8 hours of bright sunshine. There are 2-5 mm of rainfall expected with 36% chance of some rain and a moderate breeze of 27 kph from the east.

30
°C maximum temperature
29
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
11
UV index (Extreme)
36
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
27
kph wind from E

Cayo Guillermo weather for Wednesday 5th August 2026

Expect scattered clouds 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 0 mm of rainfall expected and a fresh breeze of 32 kph from the east.

30
°C maximum temperature
29
°C minimum temperature
scattered clouds
9
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
32
kph wind from E

Cayo Guillermo weather for Thursday 6th August 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 75% chance of some rain and a fresh breeze of 29 kph from the east.

29
°C maximum temperature
29
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
10
UV index (Very High)
75
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
29
kph wind from E

Cayo Guillermo weather for Friday 7th August 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 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 75% chance of some rain and a fresh breeze of 29 kph from the east.

30
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
10
UV index (Very High)
75
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
29
kph wind from E

Cayo Guillermo weather for Saturday 8th August 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 10 hours of bright sunshine. There are 2-5 mm of rainfall expected with 43% chance of some rain and a fresh breeze of 32 kph from the east.