Cayo Guillermo weather live forecast

Today's maximum temperature in Cayo Guillermo is expected to be 79°F. Select a day from the live weather forecast for Cayo Guillermo, Cuba for more weather parameters.

Friday
6th Mar
79

75

8

8
Saturday
7th Mar
79

75

7

8
Sunday
8th Mar
79

75

6

8
Monday
9th Mar
79

75

6

9
Tuesday
10th Mar
79

75

7

10

5-day weather forecast updated at 04:02 on Friday 6th March 2026 GMT

More about Cayo Guillermo

Cayo Guillermo by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Cuba

On the Beach: Free perks on 2026 holidays

Sale

Book 2026 holidays & get free perks with On the Beach
Perks vary based on hotel star rating & promotional T&Cs
Free lounge access, gadget cover, weather protection & more

Go to On the Beach deal >>

Expires at 23:59 on Monday 31st Aug 2026 · View all On the Beach offers

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 Friday 6th March 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 41% chance of some rain and a fresh breeze of 19 mph from the east.

79
°F maximum temperature
75
°F minimum temperature
isolated thunderstorms
8
hours of sunshine
8
UV index (Very High)
41
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
19
mph wind from E

Cayo Guillermo weather for Saturday 7th March 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 56% chance of some rain and a fresh breeze of 19 mph from the east.

79
°F maximum temperature
75
°F minimum temperature
isolated thunderstorms
7
hours of sunshine
8
UV index (Very High)
56
% chance of some rain
<5
mm of rainfall expected
L
low heat & humidity
19
mph wind from E

Cayo Guillermo weather for Sunday 8th March 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 64% chance of some rain and a moderate breeze of 17 mph from the east.

79
°F maximum temperature
75
°F minimum temperature
isolated thunderstorms
6
hours of sunshine
8
UV index (Very High)
64
% chance of some rain
<5
mm of rainfall expected
L
low heat & humidity
17
mph wind from E

Cayo Guillermo weather for Monday 9th March 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 38% chance of some rain and a moderate breeze of 16 mph from the east.

79
°F maximum temperature
75
°F minimum temperature
isolated thunderstorms
6
hours of sunshine
9
UV index (Very High)
38
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
16
mph wind from E

Cayo Guillermo weather for Tuesday 10th March 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 41% chance of some rain and a moderate breeze of 17 mph from the east.