George Town (Grand Cayman) weather in May

May in George Town: sweltering, rainy, with clean air — fine if you can take 36°C afternoons.

Updated September 2026 · climate normals from ERA5 reanalysis

George Town Cayman Islands · Greater Antilles · Island84
  1. 89Jan
  2. 91Feb
  3. 91Mar
  4. 90Apr
  5. 84May
  6. 79Jun
  7. 85Jul
  8. 82Aug
  9. 80Sep
  10. 72Oct
  11. 76Nov
  12. 86Dec

#7 of 12 months in George Town · #506 of 1413 destinations to visit in May · comfort 84/100 (tier A)

Days
32°C
Nights
26°C
Wet days
13
Sun
11.5 h
Humidity
77%
Daylight
13 h
George Town, Cayman Islands
Photo: Kenny Foo · Pexels

Traveller notes on George Town in May

Other months in George Town

Forum posters note Grand Cayman gets around 50 inches of rain annually, much of it concentrated in the shoulder-season months of May and October. Posters describe October rain as typically intermittent - it comes down, then the sun returns - rather than an all-day washout, though experiences genuinely vary, with some travelers reporting glorious weather and others hitting rainier stretches. Posters are direct that October sits within prime Atlantic hurricane season, meaning real trip-disruption risk and travel insurance worth having in case a big storm requires canceling. On the upside, posters note October brings quieter crowds, easier restaurant bookings, lower condo prices, and local events like Restaurant Month and Cocktail Week. Posters generally rate October as a genuine trade-off for George Town - real rain and hurricane risk balanced against real value and lighter crowds.
Tripadvisor community · October · 1 month ago · Read more on Tripadvisor ↗
Forum posters describe April as sitting near the end of the cooler, drier winter season (November-April) - typically mid-to-high 80sF by day, mid-to-high 70sF at night, with little to no rain and crystal-clear water. Posters call March through mid-May the best overall weather stretch, with no need to worry about tropical storms or hurricanes this time of year. The trade-off: April counts as high season, with room rates 40-100% above the off-season baseline, though posters note mid-April through mid-May (after Easter) brings meaningfully lower rates while the good weather largely holds - a sweet spot for value-conscious travelers willing to shift a couple of weeks later.
Tripadvisor community · April · 1 month ago · Read more on Tripadvisor ↗

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George Town climate normals — May

Daytime high32°C / 89°F🔥 sweltering
Nighttime low26°C / 78°F
Feels like (high)36°C / 97°F
Sea temperature29°C / 85°F♨️ bath-warm
Rainfall86 mm / 3.4 in🌧 rainy
Rainy days13 days
Humidity77%💦 very humid
Dew point24°C / 76°F
Sunshine11.5 h/day
Daylight13.1 h
Wind24 km/h / 15 mph
Air quality (US AQI)37🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in George Town in May

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

BusyCayman Carnival Batabano(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for George Town's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Fair weatherGeorge Town's weather doesn't swing hard through the year — comfort stays fairly steady in every month.

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What's on in George Town in May

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Festival

    Cayman Carnival Batabano

    1–25 May · usuallyCrowded

    Cayman's carnival is a May road parade through George Town, with a junior parade a few weeks ahead of the main one. Mas bands sell their sections early and the route closes the harbour front for the afternoon. Source ↗

What's on around the world in May →

Where is George Town?

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George Town in May — FAQ

Is May a good time to visit George Town?
May in George Town: sweltering, rainy, with clean air — fine if you can take 36°C afternoons. It ranks #7 of 12 months for George Town on SeasonMap's comfort score (84/100).
What is the weather like in George Town in May?
In May, George Town averages a daily high of 31.7°C and a low of 25.5°C, with about 86.2 mm of rain over roughly 12.5 rainy days.
What is the air quality in George Town in May?
George Town has a mean US Air Quality Index of about 37 in May.