Tue 16 September 2025

TROPICAL REPORT

Atlantic Tropical Weather Outlook

Atlantic – Caribbean Sea – Gulf of Mexico
Tropical Weather Outlook  800 AM EDT Tue 16 Sep 2025 1205 UTC Tue 16 Sep 2025
IMAGE FROM NHC

Tropical Weather Outlook Text

Tropical Weather Discussion

Eastern North Pacific (East of 140°W)
Tropical Weather Outlook  500 AM PDT Tue 16 Sep 2025 1005 UTC Tue 16 Sep 2025
IMAGES FROM NHC

Tropical Weather Outlook Text

Tropical Weather Discussion

Tropical Storm Mario

MARIO WEAKENING AND ITS TIME IS FLEETING AS A TROPICAL CYCLONE

NOAA Climate Prediction Center

Weather in Cayman

SYNOPSIS

Some cloudy spells and stray showers are possible through today as residual moisture lingers over the western Caribbean. From Wednesday, an increase in the chance of showers is expected as a tropical wave approaches and brings scattered showers for Thursday.

Day: Partly cloudy skies this morning will become overcast during the afternoon. Winds E at 10 to 20 mph.

Night:  Thunderstorms likely this evening. Then a chance of scattered thunderstorms overnight. Winds ENE at 10 to 15 mph

Chance of rain: 60%.

Sea: Slight to moderate with a wave height of 2 to 4 feet.

Humidity:75%

UV: 8 VERY HIGH (DOWN from yesterday). Daily Max at 11 AM

Very High: 8-10

Extra precaution required – unprotected skin will be damaged and can burn quickly. Avoid the sun between 11 a.m. and 3 p.m. and seek shade, cover up, and wear a hat, sunglasses and sunscreen.

Expected temperatures: 82°F to 91°F. Yesterday: H 92.3.°F  L 81.8°F

Barometer: 1013 mb

Rain: Last month: 5.04 in

Rain this month 2.23 in
Last 24 hrs (since yesterday’s readings) 0.00 in. 3 days since rain, 6 rain days in Sep
2025 Season Total: 22.79 in 
2024 Season Total: 70.35 in
Latest rainfall readings are from HALF WAY POND.
Average rainfall in Sep: 8.8 in.
Average temperature in Sep: 80°F to 92°F
Sea Temperature in Sep: 86°F

MOON: 26% Illumination

Waning Crescent

LOCAL 6 DAY FORECAST

Grand Cayman Sun & Tides Tables September 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

Tropical storm data and graphics from National Hurricane Center at: https://www.nhc.noaa.gov/
Weathernerds: http:// https://www.weathernerds.org/
Mikes Weather Page: http://www.spaghettimodels.com