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Grand Cayman Climate and Best Time to Visit

The most pleasant weather is during the winter (November to March) when daytime temperatures average 72–80°F with generally clear skies and calm seas. The occasional nor’wester blows through during the winter, bringing cool winds and rough seas on the north and west coasts. You may need a sweater or light jacket for cooler evenings in the winter.

The summer months (May to October) coincide with the rainy season. Average temperatures range from 80–88°F, with July and August being the hottest months. Humidity is also higher in summer but occasional heavy showers can be a welcome relief from the heat. The islands are cooled by prevailing trade winds, but the sun is HOT and we advise always to wear sunscreen, a shady hat and sunglasses. Please take the sun in small doses to avoid sunburn.

Sea temperatures average 78°F in the winter and go up to 85ºF during the summer.

Hurricane season runs from June 1st to November 30th. If you visit during hurricane season, take any hurricane or tropical storm warnings seriously.