Thu 18 December 2025

Weather in Cayman

SYNOPSIS

Gentle winds and slight seas are expected through the next few days in association with a weakening ridge pattern across the northern Caribbean. A low chance for showers remains possible this afternoon as residual moisture slowly moves out of the region.

WU/TWC forecast. Today:  Partly to mostly cloudy. Winds ESE 10– 15 mph.

WU/TWC forecast Tonight: Partly cloudy skies. Winds ESE 5-10 mph.

Chance of rain: 10%.

Sea: Slight with a wave height of 1 to 3 feet.

Humidity: 79% (UP from yesterday)

UV: 6 HIGH  Same as yesterday.

High: 6-7

Protection required – UV damages the skin and can cause sunburn. Reduce time in the sun between 11 a.m. and 3 p.m. and take full precaution by seeking shade, covering up exposed skin, wearing a hat and sunglasses, and applying sunscreen.

Expected temperatures: 78°F to 87°F. Yesterday: H 86.7°F  L 76.9°F

Barometer: 1014mb 

Rain: Last month: 4.16 in

Rain this month 0.92 in
Last 24 hrs (since yesterday’s readings) 0.12 in. 0 days since rain, 10 rain days in December.
2025 Season Total: 39.09 in 
2024 Season Total: 70.35 in
Latest rainfall readings are from SOUTH SOUND.
Average rainfall in December: 2.2 in.
Average temperature in December: 73°F to 84°F
Sea Temperature in December: 82°F

Sun in George Town

From time and date

MOON: 2% Illumination

Waning Crescent

LOCAL 6 DAY FORECAST

Grand Cayman Sun & Tides Tables December 2025

From Tides4fishing

IMPORTANT NOTICEThe times reflected in the tidal table for Grand Cayman are predictions valid as references for sports fishing in areas near the coast of Grand Cayman. THEY ARE NOT SUITABLE FOR NAVIGATION. Remember that to practice any activity at sea like diving, windsurfing and fishing from a boat or underwater fishing should always be consulted with the official tide tables of the port of Grand Cayman.

See: http://www.weather.gov.ky/portal/page?_
FOR RADAR IMAGE GO TO: https://www.weather.gov.ky/radar
Also see Weather In Cayman: http://www.weatherincayman.com
Moon info and graphic: https://www.timeanddate.com/moon/phases/uk/georgetow