Key WestUnited States · North America · Year-round overview
BeachIslandCoastal

Key West

United States · North America

Key West is most comfortable in the drier months around January to March. Typical daytime highs run about 79-89°F year-round. The climate is hot and humid. Rainy season runs roughly May to October.

Best time to go
Key West travel scene
12 mo · Typical year
Temperature range
64°F to 89°F
Rain
10 days/mo
Sunshine
10.9 h/day
Humidity feel
Humid year-round

Month-by-month fit

Temperature

Hot by day, warm at night.

89°Ftypical Aug high
60°70°80°90°HighLow89°F79°F80°F64°FJanMarMayJulSepNovCurrent month · 89°F
Typical range

Precipitation

One of the wettest months.

52%wet-day frequency
012345678Amount (in)0%25%50%75%100%80%13%JanMarMayJulSepNovCurrent month · 52%52%
AmountWet-day chance

Sunshine

Cloudier spells limit sunshine.

11.9 hAug sunshine
0 h4 h8 h12 h16 h9.5 hJanMarMayJulSepNovCurrent month · 11.9 h11.9 h

Heat & humidity by month

Hot afternoons occur, with humid air through much of the month.

73%Aug share of very humid air hours
0%25%50%75%100%73% Very humid air63% Humid airJanMarMayJulSepNov
Easy airWarm airHumid airVery humid air

Hourly comfort pattern

In August, afternoons feel about 89° and nights feel near 87°.

January 12 AM - 67° (Comfortable) - NighttimeJanuary 1 AM - 67° (Comfortable) - NighttimeJanuary 2 AM - 67° (Comfortable) - NighttimeJanuary 3 AM - 67° (Comfortable) - NighttimeJanuary 4 AM - 66° (Comfortable) - NighttimeJanuary 5 AM - 67° (Comfortable) - NighttimeJanuary 6 AM - 67° (Comfortable) - NighttimeJanuary 7 AM - 67° (Comfortable) - NighttimeJanuary 8 AM - 67° (Comfortable)January 9 AM - 67° (Comfortable)January 10 AM - 67° (Comfortable)January 11 AM - 67° (Comfortable)January 12 PM - 67° (Comfortable)January 1 PM - 67° (Comfortable)January 2 PM - 67° (Comfortable)January 3 PM - 67° (Comfortable)January 4 PM - 67° (Comfortable)January 5 PM - 68° (Comfortable)January 6 PM - 68° (Comfortable)January 7 PM - 68° (Comfortable)January 8 PM - 68° (Comfortable) - NighttimeJanuary 9 PM - 67° (Comfortable) - NighttimeJanuary 10 PM - 67° (Comfortable) - NighttimeJanuary 11 PM - 67° (Comfortable) - NighttimeFebruary 12 AM - 68° (Comfortable) - NighttimeFebruary 1 AM - 68° (Comfortable) - NighttimeFebruary 2 AM - 68° (Comfortable) - NighttimeFebruary 3 AM - 68° (Comfortable) - NighttimeFebruary 4 AM - 68° (Comfortable) - NighttimeFebruary 5 AM - 68° (Comfortable) - NighttimeFebruary 6 AM - 68° (Comfortable) - NighttimeFebruary 7 AM - 68° (Comfortable) - NighttimeFebruary 8 AM - 68° (Comfortable)February 9 AM - 68° (Comfortable)February 10 AM - 68° (Comfortable)February 11 AM - 69° (Comfortable)February 12 PM - 69° (Comfortable)February 1 PM - 69° (Comfortable)February 2 PM - 70° (Comfortable)February 3 PM - 70° (Comfortable)February 4 PM - 70° (Comfortable)February 5 PM - 70° (Comfortable)February 6 PM - 70° (Comfortable)February 7 PM - 69° (Comfortable)February 8 PM - 69° (Comfortable) - NighttimeFebruary 9 PM - 69° (Comfortable) - NighttimeFebruary 10 PM - 69° (Comfortable) - NighttimeFebruary 11 PM - 69° (Comfortable) - NighttimeMarch 12 AM - 70° (Comfortable) - NighttimeMarch 1 AM - 70° (Comfortable) - NighttimeMarch 2 AM - 70° (Comfortable) - NighttimeMarch 3 AM - 70° (Comfortable) - NighttimeMarch 4 AM - 70° (Comfortable) - NighttimeMarch 5 AM - 70° (Comfortable) - NighttimeMarch 6 AM - 70° (Comfortable) - NighttimeMarch 7 AM - 70° (Comfortable) - NighttimeMarch 8 AM - 70° (Comfortable)March 9 AM - 70° (Comfortable)March 10 AM - 70° (Comfortable)March 11 AM - 70° (Comfortable)March 12 PM - 70° (Comfortable)March 1 PM - 70° (Comfortable)March 2 PM - 71° (Comfortable)March 3 PM - 71° (Comfortable)March 4 PM - 71° (Comfortable)March 5 PM - 71° (Comfortable)March 6 PM - 72° (Comfortable)March 7 PM - 72° (Comfortable)March 8 PM - 71° (Comfortable)March 9 PM - 71° (Comfortable) - NighttimeMarch 10 PM - 71° (Comfortable) - NighttimeMarch 11 PM - 71° (Comfortable) - NighttimeApril 12 AM - 74° (Comfortable) - NighttimeApril 1 AM - 74° (Comfortable) - NighttimeApril 2 AM - 74° (Comfortable) - NighttimeApril 3 AM - 74° (Comfortable) - NighttimeApril 4 AM - 74° (Comfortable) - NighttimeApril 5 AM - 73° (Comfortable) - NighttimeApril 6 AM - 74° (Comfortable) - NighttimeApril 7 AM - 74° (Comfortable) - NighttimeApril 8 AM - 74° (Comfortable)April 9 AM - 74° (Comfortable)April 10 AM - 74° (Comfortable)April 11 AM - 74° (Comfortable)April 12 PM - 75° (Comfortable)April 1 PM - 75° (Comfortable)April 2 PM - 75° (Comfortable)April 3 PM - 75° (Warm)April 4 PM - 75° (Warm)April 5 PM - 75° (Warm)April 6 PM - 76° (Warm)April 7 PM - 76° (Warm)April 8 PM - 75° (Warm)April 9 PM - 75° (Comfortable) - NighttimeApril 10 PM - 75° (Comfortable) - NighttimeApril 11 PM - 74° (Comfortable) - NighttimeMay 12 AM - 80° (Warm) - NighttimeMay 1 AM - 79° (Warm) - NighttimeMay 2 AM - 79° (Warm) - NighttimeMay 3 AM - 79° (Warm) - NighttimeMay 4 AM - 79° (Warm) - NighttimeMay 5 AM - 79° (Warm) - NighttimeMay 6 AM - 80° (Warm) - NighttimeMay 7 AM - 80° (Warm)May 8 AM - 80° (Warm)May 9 AM - 80° (Warm)May 10 AM - 80° (Warm)May 11 AM - 80° (Warm)May 12 PM - 80° (Warm)May 1 PM - 80° (Warm)May 2 PM - 81° (Warm)May 3 PM - 81° (Warm)May 4 PM - 81° (Warm)May 5 PM - 81° (Warm)May 6 PM - 82° (Warm)May 7 PM - 81° (Warm)May 8 PM - 81° (Warm)May 9 PM - 80° (Warm) - NighttimeMay 10 PM - 80° (Warm) - NighttimeMay 11 PM - 80° (Warm) - NighttimeJune 12 AM - 85° (Hot) - NighttimeJune 1 AM - 85° (Hot) - NighttimeJune 2 AM - 85° (Hot) - NighttimeJune 3 AM - 85° (Hot) - NighttimeJune 4 AM - 85° (Hot) - NighttimeJune 5 AM - 85° (Hot) - NighttimeJune 6 AM - 85° (Hot) - NighttimeJune 7 AM - 85° (Hot)June 8 AM - 85° (Hot)June 9 AM - 85° (Hot)June 10 AM - 86° (Hot)June 11 AM - 85° (Hot)June 12 PM - 86° (Hot)June 1 PM - 86° (Hot)June 2 PM - 86° (Hot)June 3 PM - 86° (Hot)June 4 PM - 86° (Hot)June 5 PM - 86° (Hot)June 6 PM - 87° (Hot)June 7 PM - 87° (Hot)June 8 PM - 86° (Hot)June 9 PM - 86° (Hot)June 10 PM - 86° (Hot) - NighttimeJune 11 PM - 85° (Hot) - NighttimeJuly 12 AM - 87° (Hot) - NighttimeJuly 1 AM - 87° (Hot) - NighttimeJuly 2 AM - 87° (Hot) - NighttimeJuly 3 AM - 87° (Hot) - NighttimeJuly 4 AM - 87° (Hot) - NighttimeJuly 5 AM - 87° (Hot) - NighttimeJuly 6 AM - 87° (Hot) - NighttimeJuly 7 AM - 87° (Hot)July 8 AM - 87° (Hot)July 9 AM - 87° (Hot)July 10 AM - 87° (Hot)July 11 AM - 87° (Hot)July 12 PM - 88° (Hot)July 1 PM - 88° (Hot)July 2 PM - 88° (Hot)July 3 PM - 88° (Hot)July 4 PM - 88° (Hot)July 5 PM - 88° (Hot)July 6 PM - 89° (Hot)July 7 PM - 89° (Hot)July 8 PM - 89° (Hot)July 9 PM - 88° (Hot)July 10 PM - 88° (Hot) - NighttimeJuly 11 PM - 88° (Hot) - NighttimeAugust 12 AM - 88° (Hot) - NighttimeAugust 1 AM - 88° (Hot) - NighttimeAugust 2 AM - 88° (Hot) - NighttimeAugust 3 AM - 87° (Hot) - NighttimeAugust 4 AM - 87° (Hot) - NighttimeAugust 5 AM - 87° (Hot) - NighttimeAugust 6 AM - 88° (Hot) - NighttimeAugust 7 AM - 88° (Hot) - NighttimeAugust 8 AM - 88° (Hot)August 9 AM - 88° (Hot)August 10 AM - 88° (Hot)August 11 AM - 88° (Hot)August 12 PM - 88° (Hot)August 1 PM - 88° (Hot)August 2 PM - 89° (Hot)August 3 PM - 89° (Hot)August 4 PM - 89° (Hot)August 5 PM - 89° (Hot)August 6 PM - 89° (Hot)August 7 PM - 89° (Hot)August 8 PM - 89° (Hot)August 9 PM - 89° (Hot)August 10 PM - 89° (Hot) - NighttimeAugust 11 PM - 88° (Hot) - NighttimeSeptember 12 AM - 86° (Hot) - NighttimeSeptember 1 AM - 86° (Hot) - NighttimeSeptember 2 AM - 86° (Hot) - NighttimeSeptember 3 AM - 86° (Hot) - NighttimeSeptember 4 AM - 86° (Hot) - NighttimeSeptember 5 AM - 86° (Hot) - NighttimeSeptember 6 AM - 86° (Hot) - NighttimeSeptember 7 AM - 86° (Hot) - NighttimeSeptember 8 AM - 86° (Hot)September 9 AM - 86° (Hot)September 10 AM - 86° (Hot)September 11 AM - 86° (Hot)September 12 PM - 87° (Hot)September 1 PM - 87° (Hot)September 2 PM - 87° (Hot)September 3 PM - 87° (Hot)September 4 PM - 87° (Hot)September 5 PM - 87° (Hot)September 6 PM - 88° (Hot)September 7 PM - 88° (Hot)September 8 PM - 87° (Hot)September 9 PM - 87° (Hot) - NighttimeSeptember 10 PM - 87° (Hot) - NighttimeSeptember 11 PM - 86° (Hot) - NighttimeOctober 12 AM - 81° (Warm) - NighttimeOctober 1 AM - 80° (Warm) - NighttimeOctober 2 AM - 80° (Warm) - NighttimeOctober 3 AM - 80° (Warm) - NighttimeOctober 4 AM - 80° (Warm) - NighttimeOctober 5 AM - 80° (Warm) - NighttimeOctober 6 AM - 81° (Warm) - NighttimeOctober 7 AM - 80° (Warm) - NighttimeOctober 8 AM - 80° (Warm)October 9 AM - 80° (Warm)October 10 AM - 80° (Warm)October 11 AM - 81° (Warm)October 12 PM - 81° (Warm)October 1 PM - 81° (Warm)October 2 PM - 81° (Warm)October 3 PM - 81° (Warm)October 4 PM - 81° (Warm)October 5 PM - 81° (Warm)October 6 PM - 82° (Warm)October 7 PM - 82° (Warm)October 8 PM - 82° (Warm)October 9 PM - 81° (Warm) - NighttimeOctober 10 PM - 81° (Warm) - NighttimeOctober 11 PM - 81° (Warm) - NighttimeNovember 12 AM - 74° (Comfortable) - NighttimeNovember 1 AM - 74° (Comfortable) - NighttimeNovember 2 AM - 74° (Comfortable) - NighttimeNovember 3 AM - 73° (Comfortable) - NighttimeNovember 4 AM - 73° (Comfortable) - NighttimeNovember 5 AM - 74° (Comfortable) - NighttimeNovember 6 AM - 74° (Comfortable) - NighttimeNovember 7 AM - 73° (Comfortable)November 8 AM - 73° (Comfortable)November 9 AM - 73° (Comfortable)November 10 AM - 73° (Comfortable)November 11 AM - 74° (Comfortable)November 12 PM - 74° (Comfortable)November 1 PM - 74° (Comfortable)November 2 PM - 74° (Comfortable)November 3 PM - 74° (Comfortable)November 4 PM - 74° (Comfortable)November 5 PM - 75° (Comfortable)November 6 PM - 75° (Comfortable)November 7 PM - 75° (Comfortable) - NighttimeNovember 8 PM - 74° (Comfortable) - NighttimeNovember 9 PM - 74° (Comfortable) - NighttimeNovember 10 PM - 74° (Comfortable) - NighttimeNovember 11 PM - 74° (Comfortable) - NighttimeDecember 12 AM - 70° (Comfortable) - NighttimeDecember 1 AM - 70° (Comfortable) - NighttimeDecember 2 AM - 70° (Comfortable) - NighttimeDecember 3 AM - 70° (Comfortable) - NighttimeDecember 4 AM - 70° (Comfortable) - NighttimeDecember 5 AM - 70° (Comfortable) - NighttimeDecember 6 AM - 70° (Comfortable) - NighttimeDecember 7 AM - 70° (Comfortable) - NighttimeDecember 8 AM - 70° (Comfortable)December 9 AM - 70° (Comfortable)December 10 AM - 70° (Comfortable)December 11 AM - 70° (Comfortable)December 12 PM - 71° (Comfortable)December 1 PM - 71° (Comfortable)December 2 PM - 71° (Comfortable)December 3 PM - 71° (Comfortable)December 4 PM - 71° (Comfortable)December 5 PM - 71° (Comfortable)December 6 PM - 71° (Comfortable)December 7 PM - 71° (Comfortable) - NighttimeDecember 8 PM - 71° (Comfortable) - NighttimeDecember 9 PM - 71° (Comfortable) - NighttimeDecember 10 PM - 71° (Comfortable) - NighttimeDecember 11 PM - 71° (Comfortable) - Nighttime12 AM6 AM12 PM6 PM11 PMJanFebMarAprMayJunJulAugSepOctNovDec
ComfortableWarmHotNight shading

Sea temperature

87°Aug sea temp
70°75°90°Comfortable swim 75°+73°JanMarMayJulSepNovCurrent month · 87°87°
More detailIncludes sky, daypart comfort, and wind

Cloud cover

Mostly cloudy skies.

39%Aug clear sky
0%25%50%75%100%70%JanMarMayJulSepNovCurrent month · 39%39%
ClearCloud cover
Typical August day

August stays around 83°F through the day and night, with little temperature relief.

Avg temp Typical range
Morning83°F
Feels 88°F
Rain29%
Cloud62%
Humid airVery high
Sun intensityLow
Midday83°F
Feels 88°F
Rain28%
Cloud58%
Humid airVery high
Sun intensityStrong
Late afternoon83°F
Feels 89°F
Rain19%
Cloud55%
Humid airVery high
Sun intensityStrong
Early evening84°F
Feels 89°F
Rain17%
Cloud59%
Humid airVery high
Sun intensityLow
Best window

Wind pattern

August's typical breeze keeps the air from feeling as stagnant.

10 mphAug Breezy
0 mph5 mph10 mph15 mph20 mph25 mph16 mphJanMarMayJulSepNovCurrent month · 10 mph10 mph
Typical wind speed (mph)

Similar

Want a side-by-side climate view? Compare Key West with Denpasar / Bali.

Climate data notePlanning guidance, not a forecast

Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.

Local microclimates can vary by beach, neighborhood, trail, or elevation.

Last updated: Jun 4, 2026

Data & methodology