The month in detail
What to expect in August
In the height of summer, Cayman Islands sees high temperatures (31°C). Heat is a factor for outdoor activities. Expect rain on 29% of days — a light raincoat in the bag is recommended. Not the best window, but acceptable if dates are constrained. April (8.8/10) is significantly better if possible.
August ranks 7 out of 12 months in Cayman Islands. Compared to July: −2.4h of sun per day.
This month's conditions
What it's like in August
UV index
9 · very high
protection essential
Feels like
oppressive heat
24°
Sea
31°C
warm, ideal
Daylight
12.7h of daylight
Air quality
good
AQI 29
Compare
Is August the right month?
The best month in Cayman Islands is April (8.8/10), 3.2 pts higher than August.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Cayman Islands
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Activities
Tours, tickets, experiences
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Flights
Multi-airline comparator
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🎟️ Activities & tours · Cayman Islands
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a tropical stay.
Country · Cayman Islands
🗣️LanguageEnglish
💶CurrencyDollar des Caïmans ($)
🚗DrivingLeft-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘVery expensive · 5/5
🌡️ Climate
🌍Climate typeTropical
📈Climate trend ⓘ+0.85°C/decade
🔥Hottest monthJuly · 31°C
❄️Coolest monthJanuary · 27°C
🌧️Rainiest month ⓘSeptember · 41%
🏝️ Tropical stay
🌞Dry season ⓘMay → Sep
🌧️Wet season ⓘDec → Mar
🌀Cyclones ⓘSeason Nov-Apr
Explore
Other destinations in August
If August doesn't convince you for this destination, compare with others.
Location
Where is Cayman Islands ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
Cayman IslandsTropical climate with a 8.8 → 5.2 gap between best and worst month. 10 years of ERA5 data to choose by project.
19.31°N · 81.25°W
Questions
Frequently asked questions
What is the best time to visit Cayman Islands?
April is the best month with 29.0°C highs, 25.0°C lows, 10.0h of sunshine and 22.0% rainy days. The months of April & January offer comparable conditions.
How many hours of sunshine does Cayman Islands get in April?
Cayman Islands averages 10.0 sunshine hours per day in April. It is the sunniest month with a climate score of 8.4/10.
What is the rainiest month in Cayman Islands?
September is the most unfavourable month with September has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Cayman Islands in April?
In April, overnight lows reach 25.0°C, while afternoon highs average 29.0°C.
Is Cayman Islands good in winter?
In winter (December-February), Cayman Islands scores 8.2/10 on average — Decent period conditions for cultural visits.. The best month overall remains April with a score of 8.4/10.
When should you avoid Cayman Islands?
September is the most difficult month to visit Cayman Islands, with September has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Can you swim in Cayman Islands in August?
In August, the sea averages 31°C in Cayman Islands: warm, ideal. Ideal conditions for swimming and snorkeling.
Do you need sun protection in Cayman Islands in August?
The average UV index reaches 9 in August in Cayman Islands (very high), with about 12.7h of daylight. Protection essential.