Météo à Key West en avril
À Key West en avril : très chaud, un peu de pluie, avec un air pur — l’un des meilleurs mois pour y aller.
Mise à jour : septembre 2026 · normales climatiques issues de la réanalyse ERA5
N° 2 sur 12 mois à Key West · n° 159 sur 1413 dans le monde en avril · confort 90/100 (niveau S)
- Jour
- 29°C
- Nuit
- 23°C
- Jours de pluie
- 4
- Soleil
- 11.6 h
- Humidité
- 76%
- Durée du jour
- 13 h

Notes de voyageurs sur Key West en avril
April in Key West is a single planning question on the forum: which side of Easter are you on. The busiest weeks sit right around it, mostly families on spring vacation rather than a rowdy college crowd, and regulars say it thins out noticeably afterwards - late April is the sweet spot, with warm water and the crowds gone. The weather argument for the month is that the humidity has not come back yet and little falls. Wind is the one caveat they raise: April is reliably breezy, enough to spoil some days on the water, and sargassum turns up or does not depending on which way it is blowing. The record: 28.7C days feeling like 31C, 22.5C nights, 4.4 precipitation days, 11.6 hours of sun, a 27C sea and a 28 kph wind.
Les autres mois à Key West
Regulars are consistent this counts as genuinely pleasant overall, warm and sunny with little rain chance the norm, though several cold fronts each winter bring a handful of windy, noticeably chillier days, temperatures dropping 10-15 degrees below the run of the month. Our row backs that mild, still-dry read, 23.9C over 17.9C nights, with 46.9mm of rain across 5.2 days and a real 30.9 kph wind. Regulars are consistent this is high season here, prices climbing accordingly, jeans and a light sweater the standard packing advice for evenings and any cold-front days rather than a full coat. The sea sits at a swimmable 24.6C despite the water reading cooler than the air on paper. The record: humidity 77 percent, 9 hours of sun and AQI 45.
Regulars call this a transitional month rather than a settled one - awesome, un-oppressive weather in some years, hot and humid in others, with the one consistent change being winter's wind finally easing off, which makes it a favoured month for getting out on the water. Our row leans toward the warmer read, 30.2C reading as 34C at 77.1 percent humidity, over 24.1C nights, with 103.6mm of rain across 6.9 days. Regulars are specific about the calendar that follows: real humidity builds from late May, June brings the heat and the start of hurricane season in earnest, so May is the last easy month before both arrive. The sea stays calm and warm at 28.6C, good for fishing and snorkelling either way. The record: 11.9 hours of sun, a 25.7 kph wind and AQI 44.
Key West-forum threads on November weather call it, along with October, one of the genuinely nice stretches of the year - warm days, cool nights, humidity down from summer's peak, closer in feel to spring than to the hurricane-season months just before it. Showers do still happen, but posters say it's rare for one to be more than something passing through rather than a washed-out day, and some stretches go by without a cloud in sight. The end of the month can turn unpredictable - a late-season storm or a couple of chillier days are possible - but the average still comes out ahead of what preceded it. High-season lodging rates don't kick in until mid-December, making early November good value too, alongside a couple of specific events in the first half of the month. The record: 27.3C days feeling like 29C, 21.9C nights, 68mm across 4.9 days, a 27.4C sea, 76 percent humidity, wind averaging over 29 km/h and 9.5 hours of sun.
February in Key West is sunny and mostly dry - our row gives 41.4mm across 3.7 days - with an average high near 76F and a low near 66F, and most visitors getting 70s-to-80s days and cool nights. The word regulars repeat is windy. Our row's 28.6 kph is the strongest wind of the Key West year, and the consequences they list are the water ones: it is not a great month for water activities, and the wind is enough to make the ferry a poor bet. A cold front can also drop a couple of days into low-60s highs and low-50s nights, which is why the packing advice is shorts plus one sweatshirt. This is also peak season. The record: 26C days, 19.9C nights, 10.1 hours of sun and a 25.3C sea.
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Normales climatiques à Key West — avril
Moyennes mensuelles issues de la réanalyse ERA5. L’AQI est l’indice américain de qualité de l’air (US AQI) moyen du mois.
Affluence à Key West en avril
À quel point le lieu lui-même est fréquenté — vacances scolaires et grands départs, les mois signalés par la rédaction, et l’attrait que la météo leur donne. Jamais pris en compte dans le score de confort.
Pic d’affluenceSpring break peak, Conch Republic Independence Celebration(estimé)
Pic d’affluenceFréquentéIntersaisonCalme
Les meilleurs mois pour la météo à Key West
Classés selon le score de confort climatique propre à cette destination au fil de l’année — autre chose que son affluence (voir Affluence plus haut).
Météo correcteÀ Key West, la météo varie peu au fil de l’année — le confort reste assez stable tous les mois.
Au programme à Key West en avril
Événements saisonniers récurrents, spectacles naturels, fermetures et vacances — sélectionnés et sourcés.
- Vacances
Spring break peak
1 mars – 15 avr. · en généralVacances scolairesBondéRéserver tôtMarch is usually the busiest month of the year, with spring-break families on top of the winter crowd; hotels run close to full, rates and airfares peak, and Duval Street is loud late. Book well ahead or come in May. Source ↗
- Festival
Conch Republic Independence Celebration
17–26 avr.Grand festivalBondéTen days of tongue-in-cheek independence parties around 23 April, the anniversary of the 1982 mock secession: a parade down Duval, a harbour boat parade and a mock surrender ceremony with the Coast Guard at the Historic Seaport. Source ↗
- Festival
Key West Songwriters Festival
29 avr. – 3 maiFestival de musiqueNashville writers play their own hits in bars, theatres and on waterfront stages for five days around the turn of April into May; many shows are free, the bigger ones ticketed. Source ↗
Tout près, il se passe quelque chose
À moins de 300 km de Key West — une excursion à la journée ou un saut de puce — avec quelque chose au programme ce mois-ci. Jamais pris en compte dans le score de confort.
Où se trouve Key West ?
Key West en avril — FAQ
- Est-ce une bonne période pour aller à Key West en avril ?
- À Key West en avril : très chaud, un peu de pluie, avec un air pur — l’un des meilleurs mois pour y aller. Sur le score de confort de SeasonMap, ce mois se classe au rang 2 sur 12 pour Key West (90/100).
- Quel temps fait-il à Key West en avril ?
- En avril, Key West affiche en moyenne une maximale de 28.7 °C et une minimale de 22.5 °C, avec environ 41.7 mm de pluie sur à peu près 4.4 jours de pluie.
- Quelle est la qualité de l’air à Key West en avril ?
- En avril, l’indice américain de qualité de l’air (US AQI) moyen à Key West tourne autour de 50.
À moins de 300 km : Wading bird nesting à Everglades National Park, vers 1 déc. – 15 avr. ; Sea turtle nesting à Miami, 1 mars – 31 oct.