Key West weather in October
Temperature, sea and sunshine in October: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in October
Excellent
Best time to visit: March – July, November
What is the weather like in Key West in October?
In October, Key West is hot: daytime highs average 27 °C, and even at night it stays warm at around 26 °C. The sea averages 28.3 °C – lovely and warm for swimming. The sun shines for around 7 hours a day. Rain is frequent, with about 12 rainy days and 109 mm in total. The air is often humid and muggy. It is often windy, with gusts of around 29 km/h. All in all, October is an excellent month for a holiday in Key West.
October compared
How the weather changes from September to November. Tap a month to open it.
| SeptemberSep | OctoberOct | NovemberNov | |
|---|---|---|---|
| Score | 75 | 81 | 90 |
| Day | 29° | 27° | 25° |
| Night | 27° | 26° | 24° |
| Sea | 30° | 28° | 26° |
| Sun | 7 h | 7 h | 7 h |
| Rain days | 17 | 12 | 6 |
More details for October
- Daylight
- 11 h 37 min07:24 – 19:01
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 29 daysdew point 18 °C or more
- Wind
- 29 km/haverage daily peak
- Cloud cover
- 50 %on average
- Hot days
- 0 days30 °C or more
- Time zone
- UTC−4America/New_York
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %65 %
- Few rainy daysweight 20 %41 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
- Windproof jacket
Key West in October: quick answers
Is Key West hot in October?
Yes. In October, Key West is hot: daytime highs average 27 °C and nights stay around 26 °C.
Can you swim in Key West in October?
Yes. In October the sea averages 28.3 °C – lovely and warm for swimming.
Does it rain much in Key West in October?
Rain is frequent, with about 12 rainy days and 109 mm in total.
Key West month by month
The whole year in Key WestAll destinations: USAFlorida weather in OctoberWhere to go in OctoberSea temperature in October
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0)