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SunnyDays

Florida · EYW

Key West weather this week

Key West, Florida Just your ID

Key West scores 8.5 out of 10 and has no genuinely clear day in the next 16.

8.5/10
No clear day
0 genuinely clear days, 0 partly cloudy, 4 overcast, 0 wet, 0 stormy — out of 16 forecast days.
Bright days 0 vs dull days 4. Dull wins, so we do not call this a good week.
We are not showing a flattering tier word here. Why the score and the sky can disagree.

The model gives this week 8.5 out of 10 because it is warm and largely rain-free, and those are the two things the score measures. It is not measuring sunshine. With 0 genuinely clear days and 4 dull ones, expect grey skies. We are showing you the number and the contradiction rather than only the number.

4-day window, zero rain — Mild and overcast — grey skies all 4 days, 87°F

The next 16 days in Key West

Every number below is the forecast we hold, rendered as text — nothing here is drawn on a canvas or filled in by JavaScript. The rain figure is the highest chance across all 16 days (74%), not the lowest, because the worst number is the useful one.

Booking window Thu 24 Sep–Sun 27 Sep: 8.5/10 for those days alone. The 16-day outlook score (8.5) covers the full table below and includes days outside that window.

Key West daily forecast, Thu 24 Sep to Fri 9 Oct (16 days total). Best single day scores 8.4; worst scores 4.0. A lone good day cannot carry the week.
Day High Low Rain chance Sky Day score
87°F 78°F 21% Overcast cloudy 8.1
Overcast, 87°F, light rain possible.
87°F 80°F 20% Overcast cloudy 8.2
Overcast, 87°F, light rain possible.
83°F 80°F 15% Overcast cloudy 8.4
Overcast, 83°F, dry as a bone.
82°F 81°F 22% Overcast cloudy 8.1
Overcast, 82°F, light rain possible.
83°F 81°F 34% Drizzle wet 6.2
Drizzle, 83°F — it'll pass.
84°F 81°F 54% Thunderstorm storm 4.0
Thunderstorms, 84°F — Mother Nature has opinions.
84°F 82°F 47% Heavy drizzle wet 5.4
Heavy drizzle, 84°F — it'll pass.
84°F 82°F 45% Thunderstorm storm 4.0
Thunderstorms, 84°F — Mother Nature has opinions.
84°F 83°F 35% Thunderstorm storm 4.0
Thunderstorms, 84°F — Mother Nature has opinions.
84°F 84°F 34% Thunderstorm storm 4.0
Thunderstorms, 84°F — Mother Nature has opinions.
84°F 83°F 50% Light drizzle wet 6.3
Light drizzle, 84°F — it'll pass.
84°F 83°F 62% Drizzle wet 5.5
Drizzle, 84°F — it'll pass.
84°F 82°F 54% Light drizzle wet 6.1
Light drizzle, 84°F — it'll pass.
83°F 78°F 42% Thunderstorm storm 4.0
Thunderstorms, 83°F — Mother Nature has opinions.
82°F 80°F 74% Partly cloudy partly 6.6
Partly cloudy, 82°F, with a sprinkle or two.
unknown unknown 61% Unknown unknown 4.8
Hazy conditions.

How this week got its score

  • 4 forecast days: 0 clear/mainly clear, 0 partly cloudy, 4 overcast, 0 wet (fog/drizzle/rain/showers), 0 stormy.
  • Trimmed mean of day scores 8.2 × 0.55 = 4.51
  • Worst day drag: worst day is 8.1 × 0.25 = 2.02 - one bad day cannot be averaged away.
  • Longest consecutive run of good days (≥7.0) is 4/4 = 100% coverage × 0.20 = 2.00
  • Best single day is 8.4 but it only counts through the trimmed mean - a lone great day cannot carry the window.

The full model, including why a single great day cannot rescue a bad week, is on the methodology page.

Getting to Key West

The nearest airport we price is EYW. From New York City that is about 2h 54m in the air out of JFK, 1203 miles. Flight times from 55 other departure metros are on the search page.

Where to stay in Key West

We hold no live hotel rates for Key West right now, so there is nothing honest to show here. Rates return as soon as the supplier does — the refresh state is on system status.

So, should you go?

Key West scores 8.5 out of 10 and has no genuinely clear day in the next 16. If sunshine is the reason you are travelling, pick somewhere else this week — the full list is sorted by genuinely clear days, so the top of it is where to look.

Frequently asked

Is it raining in Key West this week?

No. The current 16-day forecast for Key West shows no rain or storm days, peaking at 74% chance on the worst day. Cloud is not the dealbreaker here — rain is, and none is forecast.

How many clear days does Key West have this week?

Zero. Key West has no genuinely clear day in the next 16.

Is Key West good for a trip this week?

Not for the sun. Key West scores 8.5/10 this week, but that score measures warmth and dryness, not sunshine — there is no genuinely clear day in the forecast.

Key West by month — 8-year ERA5 history

Historical clear-sky percentages from the ERA5 reanalysis (2018–2025). This is history, not a forecast — the 7-day forecast above is this week. They can and do differ.

Key West: clear-sky % by month, ERA5 2018–2025. n = days sampled.
Month Historically clear Sample (n)
January 27% n=248 all destinations →
February 37% n=226 all destinations →
March 45% n=248 all destinations →
April 44% n=240 all destinations →
May 33% n=248 all destinations →
June 14% n=240 all destinations →
July 17% n=248 all destinations →
August 13% n=248 all destinations →
September 11% n=240 all destinations →
October 13% n=248 all destinations →
November 30% n=240 all destinations →
December 41% n=248 all destinations →

Each month links to the detailed almanac page for Key West in that month. The “all destinations” column links to the full ranking across all destinations for that month.

Forecast data from Open-Meteo, last refreshed 2026-09-24T05:01:47.193191Z. Hotel names and rates come from LiteAPI and change constantly; the rate shown is the rate we held at refresh time, not a quote. Scores are forecasts, not guarantees, and the whole model is published on our methodology page.