Cayo Guillermo weather in July 2025

Expect 33°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Cayo Guillermo in July. Check more long-term weather averages for Cayo Guillermo in July before you book your next holiday to Cuba in 2025/2026.

  • 33°C maximum daytime temperature in July in Cayo Guillermo33
    33°C max day temperature
  • 8 hours of sunshine per day
  • 13 days with some rainfall in July in Cayo Guillermo13
    13 days with some rainfall
  • 23°C minimum night-time temperature in July in Cayo Guillermo23
    23°C min night temperature
  • 13 hours of daylight per day in July in Cayo Guillermo13
    13 hours of daylight per day
  • Very high heat & humidity in July in Cayo GuillermoVH
    Very High heat & humidity
  • 90 mm monthly rainfall in July in Cayo Guillermo90
    90 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in July in Cayo Guillermo11
    11+ (Extreme) UV index
  • 29°C sea temperature in July in Cayo Guillermo29
    29°C sea temperature

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Cayo Guillermo by month

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The July weather guide for Cuba (Cayo Guillermo) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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

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How hot is it in Cayo Guillermo in July?

Daytime temperatures usually reach 33°C in Cayo Guillermo in July with very high heat and humidity, falling to 23°C at night.

How sunny is it in Cayo Guillermo in July?

There are normally 8 hours of bright sunshine each day in Cayo Guillermo in July - that's 61% of daylight hours.

How warm is the sea around Cayo Guillermo in July?

The average sea temperature around Cayo Guillermo in July is 29°C.

Does it rain in Cayo Guillermo in July?

There are usually 13 days with some rain in Cayo Guillermo in July and the average monthly rainfall is 90mm.

Cayo Guillermo July sunrise & sunset times

Browse the sunrise and sunset times for Cayo Guillermo in July 2025. Select a month to view Cayo Guillermo sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st July 2025 05:34 19:03
Wednesday, 16th July 2025 05:40 19:02
Thursday, 31st July 2025 05:46 18:56

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