Cayo Guillermo weather live forecast

Tomorrow's maximum temperature in Cayo Guillermo is expected to be 86°F.

5-day weather forecast updated at 04:02 on Friday 18th July 2025 GMT

More about Cayo Guillermo

Cayo Guillermo by month

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

Recommended for Cuba

Marella Cruises: up to 4% off ocean cruises

  • Book online & save up to 4% on Marella Cruises
  • Discount varies by season. Book online with TUI
  • Destinations across the Med, Caribbean & USA
Go to Marella Cruises deal >>

View all Marella Cruises offers

Marella CruisesCruise deal finder

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 18th July 2025

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 86°F, 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 11% chance of some rain and a fresh breeze of 18 mph from the east.

  • 86°F maximum temperature86
    °F maximum temperature
  • 82°F minimum temperature82
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 11% chance of some rain11
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Fresh breeze of 18 mph from the East18
    mph wind from E

Back to top

Cayo Guillermo weather for Saturday 19th July 2025

Expect scattered clouds in Cayo Guillermo, Cuba with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 17 mph from the east.

  • 86°F maximum temperature86
    °F maximum temperature
  • 82°F minimum temperature82
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 11 (Extreme)11
    UV index (Extreme)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 17 mph from the East17
    mph wind from E

Back to top

Cayo Guillermo weather for Sunday 20th July 2025

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 84°F, 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 32% chance of some rain and a moderate breeze of 14 mph from the east.

  • 84°F maximum temperature84
    °F maximum temperature
  • 82°F minimum temperature82
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 11 (Extreme)11
    UV index (Extreme)
  • 32% chance of some rain32
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 14 mph from the East14
    mph wind from E

Back to top

Cayo Guillermo weather for Monday 21st July 2025

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 84°F, 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 50% chance of some rain and a moderate breeze of 12 mph from the east.

  • 84°F maximum temperature84
    °F maximum temperature
  • 82°F minimum temperature82
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 50% chance of some rain50
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 12 mph from the East12
    mph wind from E

Back to top

Cayo Guillermo weather for Tuesday 22nd July 2025

Expect isolated thunderstorms in Cayo Guillermo, Cuba with a maximum temperature of 84°F, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 64% chance of some rain and a gentle breeze of 11 mph from the east.

  • 84°F maximum temperature84
    °F maximum temperature
  • 82°F minimum temperature82
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 11 (Extreme)11
    UV index (Extreme)
  • 64% chance of some rain64
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Gentle breeze of 11 mph from the East11
    mph wind from E

Back to top

Marella Cruises: up to 4% off ocean cruises

  • Book online & save up to 4% on Marella Cruises
  • Discount varies by season. Book online with TUI
  • Destinations across the Med, Caribbean & USA
Go to Marella Cruises deal >>

View all Marella Cruises offers

Marella CruisesCruise deal finder

Metric (°C)  |  Imperial (°F)

Back to top

More about Cuba

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^