Cayo Guillermo weather live forecast

Today's maximum temperature in Cayo Guillermo is expected to be 25°C. Select a day from the live weather forecast for Cayo Guillermo, Cuba for more weather parameters.

5-day weather forecast updated at 04:02 on Thursday 26th March 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 Thursday 26th March 2026

Expect broken clouds in Cayo Guillermo, Cuba with a maximum temperature of 25°C, maximum UV of 9 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the north-east.

  • 25°C maximum temperature25
    °C maximum temperature
  • 24°C minimum temperature24
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 9 (Very High)9
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 23 kph from the North-East23
    kph wind from NE

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Cayo Guillermo weather for Friday 27th March 2026

Expect broken clouds in Cayo Guillermo, Cuba with a maximum temperature of 25°C, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the east.

  • 25°C maximum temperature25
    °C maximum temperature
  • 24°C minimum temperature24
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 27 kph from the East27
    kph wind from E

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Cayo Guillermo weather for Saturday 28th March 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 25°C, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 48% chance of some rain and a fresh breeze of 29 kph from the north-east.

  • 25°C maximum temperature25
    °C maximum temperature
  • 24°C minimum temperature24
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 48% chance of some rain48
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Fresh breeze of 29 kph from the North-East29
    kph wind from NE

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Cayo Guillermo weather for Sunday 29th March 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 25°C, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 53% chance of some rain and a fresh breeze of 36 kph from the east.

  • 25°C maximum temperature25
    °C maximum temperature
  • 24°C minimum temperature24
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 53% chance of some rain53
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Fresh breeze of 36 kph from the East36
    kph wind from E

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Cayo Guillermo weather for Monday 30th March 2026

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 25°C, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 52% chance of some rain and a fresh breeze of 36 kph from the east.

  • 25°C maximum temperature25
    °C maximum temperature
  • 24°C minimum temperature24
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 52% chance of some rain52
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Fresh breeze of 36 kph from the East36
    kph wind from E

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  • 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

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

Metric (°C / mm)  |  Imperial (°F / inches)

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