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.

Saturday
16th May
28

27

9

11
Sunday
17th May
28

27

8

11
Monday
18th May
28

27

8

11
Tuesday
19th May
28

27

7

10
Wednesday
20th May
28

27

7

11

5-day weather forecast updated at 04:01 on Saturday 16th May 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 16th May 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 11 (Extreme) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 16% chance of some rain and a moderate breeze of 24 kph from the east.

28
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
11
UV index (Extreme)
16
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
24
kph wind from E

Cayo Guillermo weather for Sunday 17th May 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 11 (Extreme) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 42% chance of some rain and a moderate breeze of 27 kph from the east.

28
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
11
UV index (Extreme)
42
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
27
kph wind from E

Cayo Guillermo weather for Monday 18th May 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 11 (Extreme) and 8 hours of bright sunshine. There are 5-10 mm of rainfall expected with 67% chance of some rain and a fresh breeze of 29 kph from the east.

28
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
11
UV index (Extreme)
67
% chance of some rain
<10
mm of rainfall expected
L
low heat & humidity
29
kph wind from E

Cayo Guillermo weather for Tuesday 19th May 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 28°C, low 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 moderate breeze of 26 kph from the east.

28
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
10
UV index (Very High)
75
% chance of some rain
<10
mm of rainfall expected
L
low heat & humidity
26
kph wind from E

Cayo Guillermo weather for Wednesday 20th May 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 54% chance of some rain and a moderate breeze of 23 kph from the east.