Key West Climate and Average Weather
Climate of Key West: average temperatures, rainfall and seasons month by month.
Climate in Key West month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 72° | 67° | 1,3 in | ★★★★☆ |
| February | 72° | 68° | 1,2 in | ★★★★☆ |
| March | 76° | 72° | 2,4 in | ★★★★☆ |
| April | 78° | 74° | 0,9 in | ★★★★★ |
| May | 83° | 80° | 2,3 in | ★★★★☆ |
| June | 85° | 81° | 6,9 in | ★★★☆☆ |
| July | 86° | 82° | 3,0 in | ★★★★☆ |
| August | 87° | 82° | 5,3 in | ★★★☆☆ |
| September | 85° | 81° | 6,7 in | ★★★☆☆ |
| October | 82° | 78° | 5,5 in | ★★★☆☆ |
| November | 78° | 75° | 2,1 in | ★★★★☆ |
| December | 74° | 71° | 3,8 in | ★★★★☆ |
Climate type: Temperate. Source: Open-Meteo archive (ERA5).
Recent extremes in Key West
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Key West compares with nearby places
Annual averages, and the difference against Key West.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Monroe County | 0 mi | 78°F | about the same | 41 in |
| Dry Tortugas National Park | 69 mi | 78°F | about the same | 38 in |
| Everglades National Park | 75 mi | 76°F | 34°F cooler | 52 in |
| Everglades (UNESCO World Heritage Site) | 75 mi | 76°F | 34°F cooler | 52 in |
| Key Largo | 91 mi | 78°F | about the same | 42 in |
Best time to visit Key West
Go in January, February, April and May. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: June, August and September - expect the least comfortable mix of heat, cold or rain.
What this means for Key West
Today is slightly warmer than average for August. The forecast high of 92°F is 4.9°F above the 87°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 47°F.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- Avoid long hikes after mid-morning; start at dawn or leave it for a cooler day.
- If your dates are flexible, avoid June, August and September - historically the least comfortable months here.
Summary
Key West is a city in Florida. Key West is known for Southernmost point and sunset celebrations. It has a population of about 25.000.
Right now it is 84°F (29°C) in Key West with clear. It feels like 92°F. Today runs from 80°F to 92°F. Chance of precipitation is 1%. Sightseeing conditions score 9.4/10 - excellent - go now.
The best time to visit Key West is January, February, April and May. The climate is temperate. June, August and September tend to be the least comfortable months. August is the warmest month with average highs near 87°F, while January is the coldest with lows near 67°F.
The closest major airport is Miami International Airport (MIA), about 127 mi away. Nearby highlights include Dry Tortugas National Park, Everglades (UNESCO World Heritage Site), Everglades National Park and Key Largo.
In plain terms. Today is slightly warmer than average for August. The forecast high of 92°F is 4.9°F above the 87°F typical for this month. The best window to be outside is roughly 7 AM to 10 AM, when temperature, rain chance and wind line up best. swimming is the strongest bet in Key West today at 9.9/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Key West
| Type | City |
|---|---|
| State | Florida |
| Country | United States |
| Continent | North America |
| Coordinates | 24°33′18.4″N 81°46′48″W (24.5551, -81.78) |
| Population | 25.000 |
| Known for | Southernmost point and sunset celebrations |
| Local time | 12:05 PM (UTC-04:00) |
| Best months | January, February, April and May |
| Climate | Temperate |
Weather map for Key West
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore Key West
Every topic we hold for this place, and the same topic for the places around it.
Climate for related places
Frequently asked questions
Where is Key West?
Key West is a city in Florida. Its coordinates are 24.5551, -81.78. It lies in North America.
What is the weather like in Key West right now?
It is currently 84°F (29°C) with clear. Humidity is 66% and wind is 0 mph.
When is the best time to visit Key West?
January, February, April and May offer the most comfortable conditions in Key West, which has a temperate climate. June, August and September are usually the hardest months for outdoor plans.
What time zone is Key West in?
Key West observes America/New_York (UTC-04:00). The local time is 12:05 PM.
How many people live in Key West?
Key West has a population of approximately 25.000.
What is the nearest airport to Key West?
The closest airports are Miami International Airport (MIA), 127 mi away and Orlando International Airport (MCO), 269 mi away.
What are the top things to do in Key West?
Popular options include Dry Tortugas National Park, Everglades (UNESCO World Heritage Site), Everglades National Park, Key Largo, Biscayne National Park and South Beach.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-us) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 23, 2026 at 12:05 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
