Key Largo, FL weather in October
Key Largo is hot and oppressively humid in October, with frequent rain: highs average 88°F and nights drop to about 71°F. Rain falls on about 13 days.
- Normal high
- 88°F
- Normal low
- 71°F
- Wet days
- 13
- 5.5 in total
- Muggy days
- 27
- dew point 65°F+
How October changes from start to finish
| October 1 | October 31 | |
|---|---|---|
| Normal high | 90°F | 86°F |
| Normal low | 74°F | 67°F |
| Chance of a wet day | 50% | 33% |
| Sunrise / sunset | 7:13 am / 7:08 pm | 7:28 am / 6:41 pm |
| Daylight | 11.9 h | 11.2 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical October day
- 6 am74°Fdew point 71°F
- 9 am81°Fdew point 72°F
- Noon84°Fdew point 72°F
- 3 pm83°Fdew point 71°F
- 6 pm79°Fdew point 71°F
- 9 pm77°Fdew point 71°F
NOAA hourly normals (local standard time) from Homestead AFB (28 mi away); average wind 8 mph; clear or few clouds in 48% of daytime hours, mostly cloudy or overcast in 33%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F1 of 31
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph15 of 31
- Hot dayshigh 90°F or more12 of 31
- Muggy daysdaily mean dew point 65°F or more27 of 31
- Wet daysat least 0.01 in of rain or melted snow13 of 31
- Notable rainat least 0.10 in7 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per October, counted from daily records for each year 1991-2020.
Rain in October
Normal precipitation is 5.5 in; a dry October brings about 2.5 in and a wet one about 8.4 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.
How October varies from year to year
- Warmest October, 1991-20202009: average high 94°F
- Coolest October1991: average high 82°F
- Wettest October2020: 16.4 in
- Driest October2002: 0.8 in
- Highest reading101°F (October 15, 2009)
- Lowest reading50°F (October 29, 2008)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
October compared with September and November
| September | October | November | |
|---|---|---|---|
| Normal high | 91°F | 88°F | 83°F |
| Normal low | 74°F | 71°F | 64°F |
| Wet days | 18 | 13 | 8 |
| Comfortable days | 0 | 1 | 4 |
| Daylight | 12.3 h | 11.6 h | 10.9 h |
Highs change by -3°F from September and -5°F into November.
Nearby alternatives in October
- Drier: Cape Coral, FL138 mi · high 87°F · 8 wet days
How Key Largo ranks in October
- Normal high11th warmest of 378 cities; 1st of 23 in Florida
- Wet days345th driest of 378
- Comfortable days326th most of 340
What to pack for Key Largo in October
- Light, breathable clothing – highs near 88°F and about 27 muggy days
- A rain jacket or umbrella – rain on about 13 days
- A swimsuit – about 15 beach days
Heating and cooling
October has 0 heating degree days and 448 cooling degree days (base 65°F), 10% of the year's total heating and cooling demand.
Questions
How hot is Key Largo in October?
The normal high is 88°F and the normal low is 71°F. From 1991 to 2020 the hottest October reading was 101°F (October 15, 2009).
Does it rain a lot in Key Largo in October?
About 13 days in October have at least 0.01 in of precipitation, and the normal total is 5.6 in. The wettest October in 1991-2020 was in 2020 (16.4 in); the driest was in 2002 (0.8 in).
Is October a good time to visit Key Largo?
October ranks 8th of 12 months on our comfort score for Key Largo (38 out of 100). It has about 1 comfortable day and about 12 days at 90°F or hotter. The best months are January, February and March.
Where the numbers come from
- Temperature, rain and snow depth: Royal Palm RS (USC00087760), 23 mi NNW of the city center, 7 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and frost dates: Tavernier (USC00088841), 7.2 mi SW of the city center, 7 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: Homestead AFB (USW00012826), 28 mi N of the city center, 16 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Homestead AFB Airport (722026-12826), 28 mi N of the city center, 5 ft . Hourly observations, 1991-2020.