Cayman Islands Temperatures
January and February are the coolest months with daytime high's in the upper 70's to low 80's and nighttime low's in the mid 60's to low 70's. Summer temperatures peak in July and August with daytime highs in the upper 80's to low 90's and nighttime low's in the low 80's. High humidity in the summer months can often make the days and nights feel hotter. On January 19th, 2000, we registered a low temperature of 58°F, with no wind.
10-day Weather Forecast for the Cayman Islands
The Cayman Islands has had quite a few encounters with storms over the past two centuries of recorded history. Although the hurricane season runs from June 1st to November 30th, the months of September, October and November are typically the most active for our area, the southwest Caribbean. This is the period when storms tend to form in the southern Caribbean and move north, into or close to our area. Visitors to the islands need not worry about being trapped during a hurricane as evacuation plans are in place and have worked well in the past.
Major hurricanes that directly impacted the Cayman Islands in recent years were:
- Gilbert - September 1988
- Mitch - October of 1998
- Michelle - November 2001
- Ivan - September 2004

Cayman Islands Winter Storms
Occasional cold fronts pass through the islands in the winter months, the remnants of more intense winter weather moving south through the southeast US and northwest Caribbean. If strong enough, the resulting local winter storms known as Nor'westers may be accompanied by extremely rough seas which can cause coastline damage and beach erosion.
Cayman Islands Tides
Grand Cayman's tide table is based on that of Galveston, Texas, minus 8 hours 1 minute. Spring tides range from 10 to 12 inches and autumn/fall tides from 15 to 20 inches.
Weather Statistics
The average annual temperature was 28.0 deg. C/ 82.5 deg. F. The highest monthly average temperature recorded was 30.3 deg. C/ 86.6 deg. F during the month of July with the lowest monthly average of 26.7 deg. C/ 80.0 deg. F occurring in the month of February.
Highest recorded temperature occurred on August 2nd was 33.3 deg. C/ 92.0 deg. F - Lowest recorded was 18.4 deg. C/ 65.2 deg. F on April 18th. The warmest month was July.
The warmest day was July 11th and 24th with an average of 30.9 deg. C/ 87.6 deg. F. The coolest day was February 19th, with the average of 22.6 deg. C/ 72.6 deg. F. The coolest month was February.
Rainfall totaled 1337.9 mm/ 53.11 ins., which is 3.30 inches lower than the normal of 56.41 inches. The wettest month was October with 336.5 mm/ 13.25 inches recorded. The driest month was Febuary with 6.6 mm/ 0.26 of an inch recorded. The most rainfall in a 24-hour period was 82.3 mm/ 3.24 ins. on October 9th.
There were 185 days free of rainfall and 180 days on which rainfall was recorded. There were 46 days on which thunder occurred.
The average barometric pressure was 29.94 ins/ 1014.0 Millibars. The highest pressure was 1023.8 Millibars/ 30.23 inches on February 19th, while the lowest was below 1004.3 Mb/ 29.65 inches on October 31st when Hurricane Wilma passed southwest of Grand Cayman.
The average wind was from the East-southeast at 09 knots with March being the windiest month.
Annual average humidity was 77% with the highest monthly average of 81% recorded in October and the lowest of 74% in July.The most humid days were October 11th with a very muggy 92%, while November 8th with 61% was the lowest.
There were 1 clear day, 230 partly cloudy days and 134 cloudy.
Cayman Weather Forecast

Comments
I have the opportunity to visit Grand Cayman for the first time from October 27 to November 1. When it rains during rainy season, is it likely to rain all day or is it more likely that there will just be a heavy afternoon shower for an hour or two?
Thank you,
Greg
Did you go down in Nov last year? How was the weather? Thinking about going in early Nov. this year 2011.
Should we plan on bringing rain gear, or will we be okay without it?
Our daughter is marrying a Caymanian on June 25th, 2011. There is no time of day that it typically rains in Cayman. We have been warned that it can be warm and rain is a possiblity any time of day. Hope this helps. Good luck and Congratulations !
All the best.
Is thw chance of a hurricane greater in late August than earlier in the summer?
Hi Keith, Thanks for your comment. I will research this question with the Weather Bureau in Grand Cayman and post a reply.
Also does anyone know if it is easy to get to Cuba from there and the best way?
thank you from canadians celebrating our 25th anniversary
Planning a 50th birthday trip to Grand Cayman Marriott for the first time in December. What the weather like? Will it be rainy / chilli? What is the best time of year to visit Grand Cayman?
Please let me hear from some couple in the 55+ age group. My wife and i would appreciate it
Thank you!
We are thinking the weather should be nice, a bit warm but early June should still be an okay month, yes? We're looking to do a bit of fishing, snorkling, kayaking, hiking, etc....We are soo excited to come and stay on the island; we have been there twice (day visits) off the cruise ships.
Would any All-Inclusives be suggested????
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