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Weather in Key West — today

Tomorrow Day after tomorrow 3 days Week 14 days Month forecast Weather archive

Now in Key West

🌙

+29°

Clear

Feels like +35° · humidity 80%

Today 12.9: +33° / +28°

🕐 01:25

Wind

9 km/h

UV index

Air (AQI)

28 · Good

Precipitation

19%

Humidity

80%

Pressure

1015 hPa

Sunrise / sunset

07:12 / 19:33

Sea temperature

🌊 +31°

👕 What to wear today

Hot — light breathable clothing, a hat, plenty of water.

Feels warmer by 6°

Weather for an activity:

🎣 fishing 🏖️ the beach 🏃 a run 📸 a photo shoot 🚶 a walk

Detailed weather information for Key West

Today, 12 September, Saturday, in Key West (United States): cloudy, light rain in places, hot. During the day the air will warm up to +33°, at night around +28°. Wind up to 21 km/h. No precipitation expected, you won't need an umbrella. Light summer clothing will do — a T-shirt and shorts or light trousers. The sea has warmed up to +31° — great for swimming. The sun will rise at 07:12 and set at 19:33 — daylight lasts 12 hours.

Hourly weather in Key West

💧 The bars at the bottom show the hourly precipitation probability. Shaded areas of the chart are the dark hours (before sunrise 🌅 and after sunset 🌇).

Weather in Key West for 14 days

Tap a day to expand it by time of day and open the full forecast. The bar shows the range from the night low (left) to the day high (right).

▶

Today 12.9

🌦️

💧 19%

+28° +33°

Morning

☁️

+29°

Day

🌦️

+33°

Evening

🌇

+30°

Night

🌙

+28°

Drizzle · precipitation 19% · wind up to 21 km/h.
☀️ Very hot. Drink more water, avoid the midday sun, sunscreen is needed.

▶

Tomorrow 13.9

☁️

💧 39%

+27° +32°

Morning

☁️

+28°

Day

☁️

+32°

Evening

🌇

+29°

Night

🌙

+27°

Overcast · precipitation 39% · wind up to 18 km/h.
☀️ Very hot. Drink more water, avoid the midday sun, sunscreen is needed.

▶

Mon 14.9

🌦️

💧 35%

+29° +30°

Morning

🌦️

+29°

Day

🌦️

+30°

Evening

🌇

+30°

Night

🌙

+29°

Drizzle · precipitation 35% · wind up to 20 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Tue 15.9

⛈️

💧 56%

+26° +30°

Morning

⛈️

+27°

Day

⛈️

+30°

Evening

🌇

+29°

Night

🌙

+26°

Thunderstorm · precipitation 56% · wind up to 36 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Wed 16.9

⛈️

💧 71%

+28° +30°

Morning

⛈️

+29°

Day

⛈️

+30°

Evening

🌇

+30°

Night

🌙

+28°

Thunderstorm · precipitation 71% · wind up to 34 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Thu 17.9

🌦️

💧 66%

+28° +29°

Morning

🌦️

+28°

Day

🌦️

+29°

Evening

🌇

+29°

Night

🌙

+28°

Drizzle · precipitation 66% · wind up to 33 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Fri 18.9

🌦️

💧 59%

+28° +29°

Morning

🌦️

+28°

Day

🌦️

+29°

Evening

🌇

+29°

Night

🌙

+28°

Drizzle · precipitation 59% · wind up to 31 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Sat 19.9

⛈️

💧 42%

+27° +29°

Morning

⛈️

+28°

Day

⛈️

+29°

Evening

🌇

+29°

Night

🌙

+27°

Thunderstorm · precipitation 42% · wind up to 38 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Sun 20.9

⛈️

💧 39%

+28° +29°

Morning

⛈️

+28°

Day

⛈️

+29°

Evening

🌇

+29°

Night

🌙

+28°

Thunderstorm · precipitation 39% · wind up to 24 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Mon 21.9

🌦️

💧 44%

+29° +30°

Morning

🌦️

+29°

Day

🌦️

+30°

Evening

🌇

+30°

Night

🌙

+29°

Drizzle · precipitation 44% · wind up to 23 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Tue 22.9

🌦️

💧 48%

+29° +30°

Morning

🌦️

+29°

Day

🌦️

+30°

Evening

🌇

+30°

Night

🌙

+29°

Drizzle · precipitation 48% · wind up to 25 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Wed 23.9

⛈️

💧 55%

+29° +30°

Morning

⛈️

+29°

Day

⛈️

+30°

Evening

🌇

+30°

Night

🌙

+29°

Thunderstorm · precipitation 55% · wind up to 19 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Thu 24.9

⛈️

💧 58%

+28° +30°

Morning

⛈️

+29°

Day

⛈️

+30°

Evening

🌇

+30°

Night

🌙

+28°

Thunderstorm · precipitation 58% · wind up to 18 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Fri 25.9

🌦️

💧 52%

+28° +29°

Morning

🌦️

+28°

Day

🌦️

+29°

Evening

🌇

+29°

Night

🌙

+28°

Drizzle · precipitation 52% · wind up to 14 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

🗺️ Precipitation radar

Precipitation radar (RainViewer) over a clean base map — updates every 5–10 minutes. Colours show nearby precipitation; if there is none, the map is simply clear — that is normal. Zoom with + / −.

Rain intensity:lightmoderateheavy

🎯 What to do in this weather — indices of the day

Comfort score from 0 (bad) to 100 (excellent), calculated from the day's weather. For “rain” and “UV” a percentage/risk level is shown.

🏖️ Beach

65 / 100

for sea and sun · Average

🏊 Swimming

51 / 100

water 31° · Average

🏃 Running

19 / 100

comfort for running · Bad

🧴 UV

moderate · low

☂️ Rain

19%

unlikely · low

✨ Stars

75 / 100

evening visibility · Good

🧺 Laundry drying

43 / 100

will dry outside · Average

🚗 Car wash

72 / 100

no rain expected · Good

🌫️ Air quality

Good air

European AQI

PM2.5: 9PM10: 19O₃: 45NO₂: 1

The air is clean — you can walk and exercise outside.

🌅 Sun, moon and sea

Sunrise

07:12

Sunset

19:33

Golden hour

19:03

Daylight

12 h (-1 min vs yesterday)

Sea temperature

+31°

🌊 slight, waves 0.6 m.

Key West climate by month

Long-term averages. Hover over a bar for details. The forecast for a specific month is a combination of the climate normal and the model forecast for the coming weeks.

+23°

+20°

Jan

+23°

+21°

Feb

+24°

+22°

Mar

+25°

+23°

Apr

+26°

+25°

May

+28°

+27°

Jun

+29°

+27°

Jul

+29°

+27°

Aug

+29°

+27°

Sep

+27°

+26°

Oct

+25°

+24°

Nov

+24°

+22°

Dec

swipe sideways →

Bar color shows temperature:frostcoolcomfortablewarmhot— best months to visit

Month	Day	Night	Sea	Precipitation	What to pack and what makes the month notable (events, nuances)
January	+23°	+20°	+24°	38 mm	One of the best times to visit: +23° by day, fresh nights. 🙂 a sweater for the evening. Water at +24° — great for swimming. This is the coldest month of the year.
February	+23°	+21°	+23°	33 mm	Ideal weather: +23° daytime — neither hot nor cold. 🙂 a sweater for the evening. Water at +23° — great for swimming.
March	+24°	+22°	+25°	30 mm	The most pleasant season: +24° by day, comfortable all day long. 🙂 a sweater for the evening. Water at +25° — great for swimming. Weather-wise, one of the three best months to visit.
April	+25°	+23°	+26°	41 mm	One of the best times to visit: +25° by day, fresh nights. 😊 light summer clothing. Water at +26° — great for swimming. Weather-wise, one of the three best months to visit.
May	+26°	+25°	+29°	64 mm	Gentle warmth — about +26° daytime, great walking weather. Frequent rain (64 mm over the month) — keep indoor backup plans. 😊 light summer clothing. Water at +29° — great for swimming.
June	+28°	+27°	+30°	109 mm	A comfortable month: +28° by day without exhausting heat. One of the wettest months (109 mm): downpours can derail plans. 😊 light summer clothing. The sea is +30° — like a warm bath. The longest daylight hours of the year — more time for everything.
July	+29°	+27°	+31°	66 mm	Warm and comfortable: +29° by day, +27° at night. It's a rainy month (66 mm) — an umbrella is a must. 😊 light summer clothing. The sea is +31° — like a warm bath.
August	+29°	+27°	+31°	108 mm	Gentle warmth — about +29° daytime, great walking weather. Frequent rain (108 mm over the month) — keep indoor backup plans. 😊 light summer clothing. The sea is +31° — like a warm bath. This is the hottest month of the year in Key West.
September	+29°	+27°	+31°	140 mm	A comfortable month: +29° by day without exhausting heat. One of the wettest months (140 mm): downpours can derail plans. 😊 light summer clothing. The sea is +31° — like a warm bath. Statistically the wettest month of the year.
October	+27°	+26°	+29°	122 mm	Warm and comfortable: +27° by day, +26° at night. It's a rainy month (122 mm) — an umbrella is a must. 😊 light summer clothing. Water at +29° — great for swimming.
November	+25°	+24°	+27°	41 mm	Ideal weather: +25° daytime — neither hot nor cold. 😊 light summer clothing. Water at +27° — great for swimming. Weather-wise, one of the three best months to visit.
December	+24°	+22°	+25°	33 mm	The most pleasant season: +24° by day, comfortable all day long. 🙂 a sweater for the evening. Water at +25° — great for swimming. The shortest daylight of the year — it gets dark early.

When to visit Key West

✅ Recommended time to visit

🌟 Best time: March, April, November

Daytime air+24…+25°

Sea temperature+25…+27°

Precipitationoften

Why: comfortable +24…+25° by day, little rain, warm sea (+25…27°).

⚠️ Doable, with caveats

🌤️ Shoulder season: January, February, May, June, July, December

Daytime air+23…+29°

Sea temperature+23…+31°

Precipitationoften

Why: already/still hot (+23…+29°) but bearable; fewer crowds, lower prices.

🔴 Not the best time

🌤️ Shoulder season: August, September, October

Daytime air+27…+29°

Sea temperature+29…+31°

Precipitationoften

Why: the rainy season (108–140 mm/month) — downpours almost daily.

Bottom line: the best time to visit Key West is March, April, November, and the most comfortable months are March, April, November. The toughest months to visit are August, September, October: frequent rain.