Temperature
Pleasant by day, warm at night.
75°Ftypical March high
Typical range
March climate
March in Key West
United States · North America
Warm coastal days and plenty of sun.
Excellent time to visit
Daytime high
75°F
Lows around 72°F
Rain
A few rainy days
Sun
11 h/day
Air feel
Humid
Sea temp
77°F
Warm sea
When to visit
Month-by-month fit
Best
Precipitation
A few rainy days, mostly brief and on-and-off. About 4 wet days, the lowest monthly average.
13%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
10.9 hMarch sunshine
Heat & humidity by month
Humidity is noticeable this month.
57%March Heat feel
Easy airWarm airHumid airVery humid air
Hourly temperature pattern
In March, afternoons feel about 71° and nights feel near 70°.
ComfortableWarmHotNight hours
Clear sky
Mostly clear skies this month.
67%March Clear sky
Clear skyCloud
Wind pattern
March's typical breeze keeps the air from feeling as stagnant.
14 mphMarch Breezy
Sea temperature
77°FMarch sea temp
More detailIncludes daypart comfort
Typical March day
March stays around 74°F through the day and night.
Avg temp Typical range
Morning73°F
Rain8%
Cloud38%
Humid airModerate
Sun intensityLow
Midday73°F
Rain7%
Cloud32%
Humid airModerate
Sun intensityStrong
Late afternoon74°F
Rain4%
Cloud28%
Humid airModerate
Sun intensityStrong
Early evening74°F
Rain4%
Cloud29%
Humid airModerate
Sun intensityLow
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 73 | 69 | 1.3 | 5 | 9.7 | 76 | 76 |
| Feb | 73 | 70 | 1.2 | 4 | 10.3 | 78 | 76 |
| Mar | 75 | 72 | 1.0 | 4 | 10.9 | 75 | 77 |
| Apr | 77 | 75 | 1.3 | 4 | 12.1 | 75 | 79 |
| May | 80 | 78 | 2.5 | 7 | 12.2 | 77 | 81 |
| Jun | 83 | 80 | 4.2 | 13 | 11.7 | 80 | 84 |
| Jul | 84 | 82 | 2.7 | 13 | 12.4 | 78 | 85 |
| Aug | 85 | 82 | 4.2 | 16 | 11.9 | 78 | 86 |
| Sep | 84 | 81 | 5.3 | 17 | 10.6 | 79 | 86 |
| Oct | 81 | 79 | 4.3 | 13 | 10.0 | 77 | 84 |
| Nov | 78 | 75 | 1.6 | 6 | 9.8 | 75 | 81 |
| Dec | 75 | 72 | 1.4 | 5 | 9.6 | 77 | 78 |
Similar climates
Similar
Similar travel styleBaliIndonesiaSimilar travel stylePunta de MitaMexicoSimilar travel styleNassauBahamasSimilar travel stylePalm BeachUnited States
Want a side-by-side climate view? Compare Key West with 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.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 4, 2026
Data & methodology