Cayman Islands weather in August 2025

Expect 90°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Cayman Islands in August. Check more long-term weather averages for Cayman Islands in August before you book your next holiday to Cayman Islands in 2025/2026.

  • 90°F maximum daytime temperature in August in Cayman Islands (George Town)90
    90°F max day temperature
  • 8 hours of sunshine per day
  • 15 days with some rainfall in August in Cayman Islands (George Town)15
    15 days with some rainfall
  • 77°F minimum night-time temperature in August in Cayman Islands (George Town)77
    77°F min night temperature
  • 13 hours of daylight per day in August in Cayman Islands (George Town)13
    13 hours of daylight per day
  • Very high heat & humidity in August in Cayman Islands (George Town)VH
    Very High heat & humidity
  • 6.7 inches monthly rainfall in August in Cayman Islands (George Town)6.7
    6.7 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in Cayman Islands (George Town)11
    11+ (Extreme) UV index
  • 84°F sea temperature in August in Cayman Islands (George Town)84
    84°F sea temperature

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The August weather guide for Cayman Islands, represented by George Town, (George Town) 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)  |  Imperial (°F)

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How hot is it in the Cayman Islands in August?

Daytime temperatures usually reach 90°F in George Town, Cayman Islands in August with very high heat and humidity, falling to 77°F at night.

How sunny is it in the Cayman Islands in August?

There are normally 8 hours of bright sunshine each day in George Town, Cayman Islands in August - that's 66% of daylight hours.

How warm is the sea around the Cayman Islands in August?

The average sea temperature around George Town, Cayman Islands in August is 84°F.

Does it rain in the Cayman Islands in August?

There are usually 15 days with some rain in George Town, Cayman Islands in August and the average monthly rainfall is 6.7 inches.

What is the chance of a hurricane in the Cayman Islands in August?

On average less than 1 day in August in George Town, Cayman Islands is likely to be affected by the passage of one or more tropical storms.

Cayman Islands August sunrise & sunset times

Browse the sunrise and sunset times for Cayman Islands in August 2025. Select a month to view Cayman Islands sunrise and sunset times for the next 12 months. The Cayman Islands sunrise and sunset times shown below are for George Town.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 06:02 19:01
Saturday, 16th August 2025 06:07 18:52
Sunday, 31st August 2025 06:10 18:41

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