15.10
thu
thu
Day
84°F
W 13 mph
Precip.
7%
7%
Night
82°F
W 17 mph
Precip.
8%
8%
16.10
fri
fri
Day
82°F
W 10 mph
Precip.
20%
20%
Night
82°F
W 4 mph
Precip.
60%
60%
17.10
sat
sat
Day
81°F
S 12 mph
Precip.
26%
26%
Night
81°F
SW 22 mph
Precip.
21%
21%
18.10
sun
sun
Day
81°F
W 23 mph
Precip.
38%
38%
Night
81°F
W 23 mph
Precip.
59%
59%
19.10
mon
mon
Day
81°F
W 19 mph
Precip.
62%
62%
Night
81°F
W 17 mph
Precip.
46%
46%
20.10
tue
tue
Day
82°F
W 11 mph
Precip.
26%
26%
Night
79°F
W 13 mph
Precip.
67%
67%
21.10
wed
wed
Day
79°F
W 22 mph
Precip.
57%
57%
Night
81°F
W 23 mph
Precip.
53%
53%
sea water
temperature
temperature
| Key Largo |
monthly
weather
weather
| Key Largo |
current
weather
weather
| Key Largo |
14 days
forecast
forecast
| Key Largo |
Sea water temperature in October, °F
Show year:
2026
2025
2024
The average sea water temperature in October of 2026 was 85.3°F. The highest and lowest sea temperatures during the month were 86.4°F and 83.8°F.
Air temperature in Key Largo, °F
Precipitation total in Key Largo, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Key Largo
Key Largo on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Key Largo
Local time: 04:55
October 15, thursday
0600
82°F
NW
11 mph
11 mph
0900
82°F
W
13 mph
13 mph
1200
84°F
W
13 mph
13 mph
1500
82°F
W
12 mph
12 mph
1800
82°F
W
13 mph
13 mph
2100
82°F
W
17 mph
17 mph
October 16, friday
0000
82°F
W
17 mph
17 mph
0300
82°F
W
16 mph
16 mph
