Key West weather in November
In November, Key West sees average daytime highs of 77°F and overnight lows near 74°F, with 1.5 in of rain across 5.8 wet days and about 10.8 hours of daylight. It is the 7th-warmest and 8th-wettest month of the year here.
Highs ease over the month, from about 79°F in the first days to 76°F by the end. The sky is clear or mostly clear about 58% of the time in November, and the air most often feels oppressive.
Daylight stretches from about 11 h 06 min at the start of November to 10 h 36 min by month's end. Set against the rest of the year, November is Key West's 5th-clearest and 1st-windiest month. For the whole year in context, see Key West's year-round climate.
- Daytime high
- 77°
- 7th warmest
- Overnight low
- 74°
- 6th coldest
- Rainfall
- 1.5 in
- 5.8 wet days
- Daylight
- 10 h 48 min
- 6:49 AM – 5:36 PM
- Cloud cover
- 40%
- 5th clearest
- Wind
- 15 mph
- 1st windiest
- Solar energy
- 4.11 kWh/m²
- Travel score
- 7.8
- out of 10
Key West is county seat of Monroe County, Florida, United States.
- Density
- 1,373/km²
- people per km²
- Founded
- 1828
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in November
Highs ease over the month, from about 79°F in the first days to 76°F by the end.
A typical November day in Key West reaches about 77°F in the afternoon and slips back to 74°F overnight — a 3°F spread between the day's warmth and the night's chill. On most days the high lands between 74°F and 80°F. Set against its neighbours, November runs about 4°F cooler than October and about 3°F warmer than December.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 79 | 79 | 79 | 79 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 |
| Avg low (°F) | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 75 | 75 | 75 | 75 | 75 | 75 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 73 | 73 | 73 | 73 | 73 | 73 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 79 | 76 |
| 2 | 79 | 76 |
| 3 | 79 | 76 |
| 4 | 79 | 76 |
| 5 | 78 | 76 |
| 6 | 78 | 76 |
| 7 | 78 | 76 |
| 8 | 78 | 76 |
| 9 | 78 | 75 |
| 10 | 78 | 75 |
| 11 | 78 | 75 |
| 12 | 78 | 75 |
| 13 | 78 | 75 |
| 14 | 77 | 75 |
| 15 | 77 | 74 |
| 16 | 77 | 74 |
| 17 | 77 | 74 |
| 18 | 77 | 74 |
| 19 | 77 | 74 |
| 20 | 77 | 74 |
| 21 | 77 | 74 |
| 22 | 76 | 74 |
| 23 | 76 | 74 |
| 24 | 76 | 74 |
| 25 | 76 | 73 |
| 26 | 76 | 73 |
| 27 | 76 | 73 |
| 28 | 76 | 73 |
| 29 | 76 | 73 |
| 30 | 76 | 73 |
How November really feels in Key West
Once humidity and wind are folded in, November averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
November sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Key West weather by month
How November compares with the rest of the year at a glance. November is the 7th-warmest and 8th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 73° / 69° | 1.5 | 5.7 | 10.6 | 7.8 |
| Feb | 73° / 70° | 1.2 | 4 | 11.1 | 8.1 |
| Mar | 74° / 71° | 1.0 | 4.2 | 11.8 | 8.4 |
| Apr | 77° / 74° | 1.5 | 4.5 | 12.6 | 8.3 |
| May | 80° / 77° | 2.6 | 7.9 | 13.2 | 7.3 |
| Jun | 83° / 80° | 4.1 | 12.7 | 13.5 | 5.7 |
| Jul | 84° / 81° | 2.5 | 12.9 | 13.4 | 5.3 |
| Aug | 84° / 81° | 4.1 | 16.1 | 12.9 | 4.8 |
| Sep | 83° / 80° | 5.4 | 17.7 | 12.2 | 4.7 |
| Oct | 81° / 78° | 4.6 | 12.7 | 11.4 | 6.2 |
| Nov | 77° / 74° | 1.5 | 5.8 | 10.8 | 7.8 |
| Dec | 75° / 71° | 1.3 | 5.1 | 10.5 | 8.0 |
Cloud cover in November
The sky is clear or mostly clear about 58% of the time in November.
Beyond those clear spells, partly cloudy skies cover about 15% of November, with mostly cloudy or overcast conditions the remaining 26%. Skies tend to open up as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 67 | 69 | 69 | 70 | 71 | 72 | 72 | 73 | 73 | 74 | 74 | 75 | 75 | 75 | 74 | 75 | 75 | 74 | 74 | 74 | 75 | 74 | 74 | 75 | 75 | 75 | 76 | 76 | 76 | 75 |
| Cloudier (%) | 33 | 31 | 31 | 30 | 29 | 28 | 28 | 27 | 27 | 26 | 26 | 25 | 25 | 25 | 26 | 25 | 25 | 26 | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 25 | 24 | 24 | 24 | 25 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 67 | 33 |
| 2 | 69 | 31 |
| 3 | 69 | 31 |
| 4 | 70 | 30 |
| 5 | 71 | 29 |
| 6 | 72 | 28 |
| 7 | 72 | 28 |
| 8 | 73 | 27 |
| 9 | 73 | 27 |
| 10 | 74 | 26 |
| 11 | 74 | 26 |
| 12 | 75 | 25 |
| 13 | 75 | 25 |
| 14 | 75 | 25 |
| 15 | 74 | 26 |
| 16 | 75 | 25 |
| 17 | 75 | 25 |
| 18 | 74 | 26 |
| 19 | 74 | 26 |
| 20 | 74 | 26 |
| 21 | 75 | 25 |
| 22 | 74 | 26 |
| 23 | 74 | 26 |
| 24 | 75 | 25 |
| 25 | 75 | 25 |
| 26 | 75 | 25 |
| 27 | 76 | 24 |
| 28 | 76 | 24 |
| 29 | 76 | 24 |
| 30 | 75 | 25 |
Chance of precipitation in November
Key West gets around 1.5 in of rain over 5.8 wet days in November. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 19% and peaks near 25% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 25 | 24 | 23 | 23 | 22 | 21 | 21 | 21 | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
| Rain chance (%) | |
|---|---|
| 1 | 25 |
| 2 | 24 |
| 3 | 23 |
| 4 | 23 |
| 5 | 22 |
| 6 | 21 |
| 7 | 21 |
| 8 | 21 |
| 9 | 20 |
| 10 | 20 |
| 11 | 19 |
| 12 | 19 |
| 13 | 19 |
| 14 | 18 |
| 15 | 18 |
| 16 | 18 |
| 17 | 18 |
| 18 | 18 |
| 19 | 18 |
| 20 | 18 |
| 21 | 18 |
| 22 | 18 |
| 23 | 18 |
| 24 | 18 |
| 25 | 18 |
| 26 | 18 |
| 27 | 18 |
| 28 | 18 |
| 29 | 18 |
| 30 | 18 |
Humidity in November
Most of November feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, November lands in the oppressive band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 70% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 |
| Comfortable (%) | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 10 |
| Humid (%) | 14 | 15 | 16 | 16 | 17 | 18 | 19 | 20 | 20 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 |
| Muggy (%) | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 30 | 30 | 30 | 31 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 40 | 41 | 41 | 42 | 42 | 42 | 42 | 43 |
| Oppressive (%) | 47 | 47 | 46 | 46 | 45 | 44 | 43 | 42 | 42 | 40 | 39 | 38 | 37 | 36 | 35 | 33 | 32 | 31 | 30 | 29 | 28 | 27 | 27 | 26 | 25 | 25 | 24 | 24 | 24 | 24 |
| Miserable (%) | 5 | 5 | 4 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 1 | 4 | 14 | 28 | 47 | 5 |
| 2 | 1 | 5 | 15 | 28 | 47 | 5 |
| 3 | 2 | 5 | 16 | 28 | 46 | 4 |
| 4 | 2 | 5 | 16 | 28 | 46 | 3 |
| 5 | 2 | 5 | 17 | 28 | 45 | 3 |
| 6 | 2 | 5 | 18 | 28 | 44 | 2 |
| 7 | 2 | 5 | 19 | 28 | 43 | 2 |
| 8 | 2 | 5 | 20 | 29 | 42 | 2 |
| 9 | 2 | 5 | 20 | 30 | 42 | 1 |
| 10 | 3 | 5 | 21 | 30 | 40 | 1 |
| 11 | 3 | 5 | 21 | 30 | 39 | 1 |
| 12 | 3 | 6 | 22 | 31 | 38 | 1 |
| 13 | 3 | 6 | 22 | 31 | 37 | 1 |
| 14 | 3 | 7 | 22 | 32 | 36 | 1 |
| 15 | 3 | 7 | 22 | 33 | 35 | 1 |
| 16 | 3 | 7 | 22 | 34 | 33 | 1 |
| 17 | 3 | 8 | 21 | 35 | 32 | 1 |
| 18 | 3 | 8 | 21 | 36 | 31 | 1 |
| 19 | 3 | 8 | 20 | 37 | 30 | 1 |
| 20 | 3 | 9 | 20 | 38 | 29 | 1 |
| 21 | 3 | 9 | 19 | 39 | 28 | 1 |
| 22 | 4 | 10 | 19 | 40 | 27 | 1 |
| 23 | 4 | 10 | 19 | 40 | 27 | 1 |
| 24 | 4 | 10 | 19 | 41 | 26 | 1 |
| 25 | 4 | 10 | 19 | 41 | 25 | 0 |
| 26 | 4 | 11 | 18 | 42 | 25 | 0 |
| 27 | 4 | 11 | 18 | 42 | 24 | 0 |
| 28 | 4 | 11 | 18 | 42 | 24 | 0 |
| 29 | 4 | 11 | 18 | 42 | 24 | 0 |
| 30 | 5 | 10 | 18 | 43 | 24 | 0 |
Wind in November
Winds average 15 mph in November, the windiest month of the year.
Across November, daily wind ranges from about 15 mph on the calmest days to 15 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 15 | breezy |
| 2 | 15 | breezy |
| 3 | 15 | breezy |
| 4 | 15 | breezy |
| 5 | 15 | breezy |
| 6 | 15 | breezy |
| 7 | 15 | breezy |
| 8 | 15 | breezy |
| 9 | 15 | breezy |
| 10 | 15 | breezy |
| 11 | 15 | breezy |
| 12 | 15 | breezy |
| 13 | 15 | breezy |
| 14 | 15 | breezy |
| 15 | 15 | breezy |
| 16 | 15 | breezy |
| 17 | 15 | breezy |
| 18 | 15 | breezy |
| 19 | 15 | breezy |
| 20 | 15 | breezy |
| 21 | 15 | breezy |
| 22 | 15 | breezy |
| 23 | 15 | breezy |
| 24 | 15 | breezy |
| 25 | 15 | breezy |
| 26 | 15 | breezy |
| 27 | 15 | breezy |
| 28 | 15 | breezy |
| 29 | 15 | breezy |
| 30 | 15 | breezy |
Sunrise & sunset in November
Daylight runs from about 11 h 06 min at the start of November to 10 h 36 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 30 minutes over November. Sunrise moves from 6:39 AM to 6:59 AM, and sunset from 5:43 PM to 5:34 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.1 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.6 | 10.6 | 10.6 | 10.6 | 10.6 |
| Sunrise (AM) | 6:39 | 6:39 | 6:40 | 6:41 | 6:41 | 6:42 | 6:43 | 6:43 | 6:44 | 6:45 | 6:45 | 6:46 | 6:47 | 6:47 | 6:48 | 6:49 | 6:49 | 6:50 | 6:51 | 6:52 | 6:52 | 6:53 | 6:54 | 6:54 | 6:55 | 6:56 | 6:56 | 6:57 | 6:58 | 6:59 |
| Sunset (PM) | 5:43 | 5:42 | 5:41 | 5:41 | 5:40 | 5:40 | 5:39 | 5:39 | 5:38 | 5:38 | 5:38 | 5:37 | 5:37 | 5:37 | 5:36 | 5:36 | 5:36 | 5:36 | 5:35 | 5:35 | 5:35 | 5:35 | 5:35 | 5:35 | 5:34 | 5:34 | 5:34 | 5:34 | 5:34 | 5:34 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.1 | 6:39 | 5:43 |
| 2 | 11.0 | 6:39 | 5:42 |
| 3 | 11.0 | 6:40 | 5:41 |
| 4 | 11.0 | 6:41 | 5:41 |
| 5 | 11.0 | 6:41 | 5:40 |
| 6 | 11.0 | 6:42 | 5:40 |
| 7 | 10.9 | 6:43 | 5:39 |
| 8 | 10.9 | 6:43 | 5:39 |
| 9 | 10.9 | 6:44 | 5:38 |
| 10 | 10.9 | 6:45 | 5:38 |
| 11 | 10.9 | 6:45 | 5:38 |
| 12 | 10.9 | 6:46 | 5:37 |
| 13 | 10.8 | 6:47 | 5:37 |
| 14 | 10.8 | 6:47 | 5:37 |
| 15 | 10.8 | 6:48 | 5:36 |
| 16 | 10.8 | 6:49 | 5:36 |
| 17 | 10.8 | 6:49 | 5:36 |
| 18 | 10.8 | 6:50 | 5:36 |
| 19 | 10.7 | 6:51 | 5:35 |
| 20 | 10.7 | 6:52 | 5:35 |
| 21 | 10.7 | 6:52 | 5:35 |
| 22 | 10.7 | 6:53 | 5:35 |
| 23 | 10.7 | 6:54 | 5:35 |
| 24 | 10.7 | 6:54 | 5:35 |
| 25 | 10.7 | 6:55 | 5:34 |
| 26 | 10.6 | 6:56 | 5:34 |
| 27 | 10.6 | 6:56 | 5:34 |
| 28 | 10.6 | 6:57 | 5:34 |
| 29 | 10.6 | 6:58 | 5:34 |
| 30 | 10.6 | 6:59 | 5:34 |
Solar energy in November
Average shortwave solar energy reaching the ground each day in November, about 4.11 kWh/m².
For context, solar energy here swings from a low near 3.66 kWh/m² to a high of 6.9 kWh/m² in May across the year — November's 4.11 kWh/m² sits near the bottom.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.4 | 4.4 | 4.4 | 4.4 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.2 | 4.2 | 4.2 | 4.2 | 4.1 | 4.1 | 4.1 | 4.1 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.4 | Bright |
| 2 | 4.4 | Bright |
| 3 | 4.4 | Bright |
| 4 | 4.4 | Bright |
| 5 | 4.3 | Bright |
| 6 | 4.3 | Bright |
| 7 | 4.3 | Bright |
| 8 | 4.3 | Bright |
| 9 | 4.3 | Bright |
| 10 | 4.2 | Bright |
| 11 | 4.2 | Bright |
| 12 | 4.2 | Bright |
| 13 | 4.2 | Bright |
| 14 | 4.1 | Bright |
| 15 | 4.1 | Bright |
| 16 | 4.1 | Bright |
| 17 | 4.1 | Bright |
| 18 | 4.0 | Bright |
| 19 | 4.0 | Bright |
| 20 | 4.0 | Bright |
| 21 | 4.0 | Moderate |
| 22 | 4.0 | Moderate |
| 23 | 4.0 | Moderate |
| 24 | 3.9 | Moderate |
| 25 | 3.9 | Moderate |
| 26 | 3.9 | Moderate |
| 27 | 3.9 | Moderate |
| 28 | 3.9 | Moderate |
| 29 | 3.9 | Moderate |
| 30 | 3.9 | Moderate |
Hazard calendar for Key West
In November, Key West sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Key West sits in the Atlantic hurricane belt; the season peaks August–October.
Key West's rainy season runs May–October, when most of the year's rain falls.
Is November a good time to visit Key West?
Our two travel scores rate November for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
November is one of the better times to visit Key West for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Key West in November
From November's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In November, Key West sees daytime highs around 77°F and nights near 74°F. Worth packing: light clothes and a windbreaker. About 6 days see rain.
Sea temperature near Key West in November
The nearest coast averages about 78°F in November — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 86°F and coldest in February near 73°F.
The water stays above 68°F all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 73 | 73 | 74 | 77 | 80 | 83 | 85 | 86 | 85 | 83 | 78 | 75 |
| Comfort | Refreshing | Refreshing | Refreshing | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Warm |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 73 | Refreshing |
| Feb | 73 | Refreshing |
| Mar | 74 | Refreshing |
| Apr | 77 | Warm |
| May | 80 | Warm |
| Jun | 83 | Tropical |
| Jul | 85 | Tropical |
| Aug | 86 | Tropical |
| Sep | 85 | Tropical |
| Oct | 83 | Tropical |
| Nov | 78 | Warm |
| Dec | 75 | Warm |
UV index in Key West in November
Clear-sky midday UV in November peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Key West peaks around July 18 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 5 (high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 6 | 8 | 10 | 11 | 11 | 11 | 12 | 12 | 11 | 9 | 6 | 5 |
| Level | High | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | High | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 6 | High |
| Feb | 8 | Very high |
| Mar | 10 | Very high |
| Apr | 11 | Extreme |
| May | 11 | Extreme |
| Jun | 11 | Extreme |
| Jul | 12 | Extreme |
| Aug | 12 | Extreme |
| Sep | 11 | Extreme |
| Oct | 9 | Very high |
| Nov | 6 | High |
| Dec | 5 | High |
Air quality in Key West in November
Average fine-particle pollution (PM2.5) through the year — so you can see where November falls, not just the annual average.
Air quality in Key West is worst in July — around 18 µg/m³ PM2.5 (moderate), about 4.1× the cleanest month (December, 4 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 5 | 5 | 6 | 8 | 9 | 15 | 18 | 16 | 10 | 7 | 5 | 4 |
| Level | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 5 | Good |
| Feb | 5 | Good |
| Mar | 6 | Good |
| Apr | 8 | Good |
| May | 9 | Good |
| Jun | 15 | Moderate |
| Jul | 18 | Moderate |
| Aug | 16 | Moderate |
| Sep | 10 | Good |
| Oct | 7 | Good |
| Nov | 5 | Good |
| Dec | 4 | Good |
Where is Key West?
Key West sits at 24.6°N, 81.8°W, 3 ft above sea level, in United States. The nearest listed city is Marco Island, 96 mi away.
Topography around Key West
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Key West.
Within 2 miles, the terrain around Key West has only modest variations in elevation — a maximum elevation change of 39 ft around an average of 3 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 75 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 52 ft.
The land around Key West is covered by water (64%) and artificial surfaces (26%) within 2 miles, water (95%) within 10 miles, and water (98%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Key West (24.5552°, -81.7816°, elevation 3 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).