28 Aug Weather in Cayman & Tropical Report, 1TS

Thu 28 August 2025

TROPICAL REPORT
Atlantic Tropical Weather Outlook


Post-Tropical Cyclone Fernand
FERNAND BECOMES A POST-TROPICAL CYCLONE... ...THIS IS THE FINAL NHC ADVISORY




Post -Tropical Cyclone Juliette
JULIETTE HAS BECOME A REMNANT LOW... ...THIS IS THE LAST ADVISORY


NOAA Climate Prediction Center


Weather in Cayman

SYNOPSIS
Day: Thunderstorms likely. Winds ESE at 10 to 15 mph.
Night: Mostly cloudy. Winds E at 5 to 10 mph.
Chance of rain: 90%. Locally heavy rainfall possible.
Sea: Slight to moderate with a wave height of 2 to 4 feet.
Humidity: 71%
UV: 9 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: 80°F to 91°F. Yesterday: H 92.0°F L 81.0°F
Barometer: 1015 mb
Rain: Last month: 5.46 in
Rain this month 3.70 in
Last 24 hrs (since yesterday’s readings) 0.05 in. 0 days since rain, 13 rain days in Aug
2025 Season Total: 19.24 in
2024 Season Total: 69.91 in
Latest rainfall readings are from SOUTH SOUND.
Average rainfall in Aug: 5.8 in.
Average temperature in Aug: 86°F to 91°F
Sea Temperature in Aug: 86°F
MOON: 26% Illumination

Waxing Crescent
LOCAL 6 DAY FORECAST

Grand Cayman Sun & Tides Tables August 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
Published August 28, 2025
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