12 Dec Weather in Cayman
Fri 12 December 2025

Weather in Cayman

SYNOPSIS
A surface trough over the Gulf of Honduras along with residual moisture lingering across the northwest Caribbean will allow for the chance of some showers this morning across the Cayman area. Moderate winds and seas are expected as a ridge of high-pressure builds across the northern Caribbean.
WU/TWC forecast.Today: Clouds and some sun this morning with more clouds for this afternoon. Winds E 10– 20 mph.
WU/TWC forecast Tonight: Cloudy skies early, then partly cloudy after midnight. Winds ENE 10-15 mph.
Chance of rain: 0%.
Sea: Moderate with a wave height of 3 to 5 feet.
Humidity: 79% (Down 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: 76°F to 86°F. Yesterday: H 88.0°F L 76.2°F
Barometer: 1015 mb
Rain: Last month: 4.16 in
Rain this month 0.40 in
Last 24 hrs (since yesterday’s readings) 0.30 in. 0 days since rain, 4 rain days in December.
2025 Season Total: 38.51 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: 42% 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





