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.

Wednesday
17th Jun
29

28

10

11
Thursday
18th Jun
30

28

10

10
Friday
19th Jun
29

28

11

11
Saturday
20th Jun
29

28

9

10
Sunday
21st Jun
30

28

9

11

5-day weather forecast updated at 04:02 on Wednesday 17th June 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 17th June 2026

Expect scattered clouds in Cayo Guillermo, Cuba with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south-east.

29
°C maximum temperature
28
°C minimum temperature
scattered clouds
10
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from SE

Cayo Guillermo weather for Thursday 18th June 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 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 26 kph from the east.

30
°C maximum temperature
28
°C minimum temperature
scattered clouds
10
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
26
kph wind from E

Cayo Guillermo weather for Friday 19th June 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 11 hours of bright sunshine. There are 0-2 mm of rainfall expected with 28% chance of some rain and a moderate breeze of 26 kph from the east.

29
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
11
hours of sunshine
11
UV index (Extreme)
28
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
26
kph wind from E

Cayo Guillermo weather for Saturday 20th June 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 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 59% chance of some rain and a moderate breeze of 22 kph from the south-east.

29
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
10
UV index (Very High)
59
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
22
kph wind from SE

Cayo Guillermo weather for Sunday 21st June 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 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 29% chance of some rain and a moderate breeze of 23 kph from the east.