16-day forecast — Key West Updated every hour
Sat · Today · 20 Jun
Showers
+32°
+27°
1,3 mm
Sun · Tomorrow · 21 Jun
Clear
+29°
+29°
6%
Monday · 22 Jun
Clear
+30°
+29°
5%
Tuesday · 23 Jun
Showers
+30°
+29°
0,6 mm
Wednesday · 24 Jun
Partly cloudy
+30°
+29°
13%
Thursday · 25 Jun
Showers
+29°
+29°
0,4 mm
Friday · 26 Jun
Showers
+30°
+29°
0,3 mm
Saturday · 27 Jun
Partly cloudy
+29°
+29°
10%
Sunday · 28 Jun
Showers
+30°
+29°
1,7 mm
Monday · 29 Jun
Partly cloudy
+30°
+29°
6%
Tuesday · 30 Jun
Showers
+29°
+29°
0,3 mm
Wednesday · 1 Jul
Showers
+29°
+29°
2,6 mm
Thursday · 2 Jul
Showers
+29°
+29°
0,8 mm
Friday · 3 Jul
Showers
+29°
+29°
1,2 mm
Saturday · 4 Jul
Showers
+29°
+28°
1,7 mm
Sunday · 5 Jul
Showers
+29°
+28°
3,0 mm
About Key West
Südlichste Stadt der USA, tropisches Klima.
Country USA
Region Florida
Continent North America
Time zone America/New_York (-04:00)
Latitude 24.5551°
Longitude -81.7800°
Air quality Fair (EAQI 23)
Climate in Key West in September
Normals 8 years · best time to visit · Open-Meteo
Best time to visit Key West : January–December . With good weather, September is a recommended month to visit.
August
September
October
Average temperature
▼ 29°C28°C ▼ 27°C
Highest temperature
▼ 30°C29°C ▼ 28°C
Lowest temperature
▼ 28°C27°C ▼ 26°C
Sea temperature
▼ 31,3°C30,7°C ▼ 28,8°C
Precipitation
▲ 143 mm172 mm ▼ 126 mm
Days with precipitation
→ 20 d20 d ▼ 16 d
Humidity
▲ 76%78% ▼ 77%
Sunshine hours per day
▼ 11,5 h10,4 h ▼ 10,1 h
Cloud cover
▲ 11%15% ▼ 12%
UV index (midday)
▼ 1210 ▼ 8
Day length
12:58
12:17 11:34
Our rating
Good
Good
Good
Temperature day by day in September mean + moving average
26° 27° 28° 29° 30° 1 6 11 16 21 26
Precipitation day by day in September mm
0 7.3 14.6 1 6 11 16 21 26
UV index day by day in September midday value, clear-sky
0 5.5 11 1 6 11 16 21 26
Climate normals calculated from Open-Meteo (ERA5 archive 8 years, sea temperature Marine API). UV estimated from solar elevation.
Other destinations in North America
Data source
Global weather models — international forecasts
Wetter in Key West (USA): aktuelle Bedingungen und Vorhersage auf 24 Stunden und 16 Tage für die Reiseplanung. Aktuell vor Ort: es sind +29°, clear, Wind 21 km/h. In den nächsten 7 Tagen schwanken die Temperaturen zwischen 27 und 32 °C, mit 3 schönen Tagen und 3 mm Regen. Ortszeit (Zeitzone America/New_York). Daten von Open-Meteo und WeatherAPI.