Last Updated on July 28, 2026 by Daniel Globe
Key West is the southernmost city in the continental United States, set about 90 miles north of Cuba at the end of the Florida Keys. Its compact Old Town, historic conch houses, waterfront sunsets, literary history, and easy access to reefs and open water make it a year-round destination. The best month for your trip depends on whether you value comfortable weather, smaller crowds, lower rates, fishing, diving, or a major festival.
Quick Answer
The best time to visit Key West is usually late November through April for lower rainfall, lower humidity, and comfortable sightseeing. Choose March through May for warm weather and spring events, or September through early November for lighter crowds and possible deals—but those dates bring more rain and a greater risk of tropical-weather disruption.
Key Takeaways
- Best overall weather: Late November through April is generally drier and less humid, but winter is also the busiest and often the most expensive period.
- Best balance: March, April, late November, and early December offer warm days with fewer weather concerns than summer and early fall.
- Best for lower rates: September and early fall may bring better lodging value outside major event dates, but they fall within the wettest and most active part of hurricane season.
- Best for birding: Spring migration—especially April into mid-May—is the preferred time for birdwatching at Dry Tortugas National Park.
- Check event dates before booking: Hemingway Days, Lobsterfest, Fantasy Fest, offshore powerboat racing, and winter festivals can sharply increase demand.
Key West has a subtropical climate with a drier season from roughly November into spring and a wetter, more humid season from late spring through fall. Even in winter, a passing cold front can bring wind, rough water, or a cool evening. In summer, short heavy showers and thunderstorms are common, but long stretches of sunshine are still possible.
Best Time to Visit Key West at a Glance
| Travel Goal | Best Time | Main Trade-Off |
| Comfortable, drier weather | Late November-April | Higher winter demand and room rates |
| Warm weather with a good overall balance | March-April or late November-early December | Spring breaks and special events can raise demand |
| Possible lodging deals and lighter crowds | September-early November, outside festival dates | Highest rain totals and tropical-weather risk |
| Warm-water activities | Late spring-summer | Heat, humidity, thunderstorms, and hurricane-season planning |
| Dry Tortugas birding | April-mid-May; also fall migration | Boat and seaplane trips remain weather-dependent |
Key West Monthly Weather
The table below uses the National Weather Service’s 1991-2020 Key West climate normals. These are long-term averages, not a forecast for a specific trip.
| Month | Avg. High | Avg. Low | Avg. Rainfall |
| January | 75.8°F | 65.5°F | 1.83 in. |
| February | 77.4°F | 67.1°F | 1.54 in. |
| March | 79.6°F | 69.3°F | 1.53 in. |
| April | 82.6°F | 73.1°F | 2.07 in. |
| May | 85.9°F | 76.4°F | 3.12 in. |
| June | 88.7°F | 79.4°F | 4.23 in. |
| July | 90.2°F | 80.6°F | 3.63 in. |
| August | 90.6°F | 80.5°F | 5.37 in. |
| September | 89.0°F | 79.2°F | 7.24 in. |
| October | 85.8°F | 76.8°F | 5.67 in. |
| November | 81.0°F | 72.2°F | 2.05 in. |
| December | 77.7°F | 68.3°F | 2.16 in. |
September is normally Key West’s wettest month, while January through April are among the driest months based on the current 1991-2020 climate normals.
Key West in the Spring
Spring is one of the easiest seasons for a Key West trip. March brings an average high near 80°F, April reaches the low 80s, and May warms into the mid-80s. Rainfall is still relatively low in March and April, while May begins the transition toward the wetter summer pattern.
The weather suits walking or biking around Old Town, visiting the Ernest Hemingway Home and Museum, touring historic sites, and spending time on the water. Spring humidity is usually easier to handle than midsummer humidity, although afternoon heat becomes more noticeable by May.
The annual Conch Republic Independence Celebration takes place in April and recalls Key West’s playful 1982 symbolic secession. The official 2026 celebration ran April 17-26. Spring is also a strong fishing period: tarpon become a major target across the Keys, particularly from April into early summer.
For wildlife travelers, spring is the preferred birding season at Dry Tortugas National Park. Northbound migration builds in March and peaks from April through mid-May.
Pro Tip: For a warm trip with relatively low rainfall, target March or April. Book early around spring break, the Conch Republic celebration, and major fishing events.
Key West in the Summer
June through August is hot and humid. Average daily highs rise from about 89°F in June to just over 90°F in July and August, while average lows remain near 80°F. Air-conditioning, shade breaks, water, a hat, and broad-spectrum sunscreen make a major difference during midday outings.
Summer works well for travelers focused on boating, snorkeling, diving, paddleboarding, fishing, or sunset cruises. Warm water and lighter winds can produce excellent conditions, including at Dry Tortugas, but visibility is never guaranteed. Thunderstorms, heavy showers, wind, and tropical systems can quickly change a boat operator’s schedule.
Hemingway Days is held each July and combines literary programs, a look-alike contest, fishing traditions, and other celebrations of the author’s Key West years. The official 2026 event ran July 21-26. Key West Lobsterfest follows in August; the 2026 festival is scheduled for August 5-9.
Warning: The Atlantic hurricane season runs from June 1 through November 30. A storm does not need to make landfall in Key West to disrupt flights, roads, ferries, tours, or hotel operations. Choose flexible reservations, review travel-insurance exclusions, and monitor the National Hurricane Center before departure.
Key West in the Fall
September remains hot, humid, and wet, with a normal average high near 89°F and the year’s highest monthly rainfall total. Conditions usually begin improving in October, while November brings a marked drop in rainfall and more comfortable evenings.
Fall can offer lighter crowds and better room value than peak winter, especially in September and early October. The trade-off is weather risk. September and October fall within the climatological peak of Atlantic tropical-cyclone activity, and the official hurricane season continues through November 30.
Fantasy Fest is a major exception to the quieter-fall pattern. The 10-day costume and performance festival fills Key West with parades, parties, elaborate outfits, and ticketed events. The official 2026 festival is scheduled for October 16-25, so travelers who want a calm stay should avoid those dates, while festival visitors should reserve rooms well ahead.
Fall is also a strong time for bird migration throughout the Keys. At Dry Tortugas, southbound migration continues through late November, with notable raptor movement in September and October. Sunset cruises, historic sites, galleries, and state parks offer quieter alternatives to the Duval Street festival scene.
Note: A low hotel rate during hurricane season is only a bargain when the cancellation terms are workable. Read the policy for named storms, evacuations, flight disruptions, and prepaid tours before paying.
Key West in the Winter
Winter is Key West’s classic escape season. December through February normally brings average highs in the upper 70s and average lows in the mid-to-upper 60s. Rainfall is relatively low, and the reduced humidity is comfortable for walking, cycling, dining outdoors, and visiting historic attractions.
This pleasant weather also creates peak demand. Holiday weeks, January events, and February escapes can produce high lodging prices, limited availability, crowded restaurants, and full tours. Reserve early when dates are fixed.
Key West Holiday Fest brings decorations, markets, tours, and lighted-boat events during December. January’s calendar includes the Key West Literary Seminar, the Key West Half Marathon & Runfest, and the Key West Food & Wine Festival. Confirmed upcoming dates include January 7-10, 2027 for the Literary Seminar, January 15-17 for the Runfest, and January 27-31 for the Food & Wine Festival.
Winter can be excellent for land-based sightseeing, but it is not automatically the calmest season on the water. Cold fronts can bring strong wind, rough seas, and reduced snorkeling visibility at Dry Tortugas. Travelers prone to seasickness should watch the marine forecast and ask the operator about cancellation or rescheduling policies.
Events and Festivals in Key West
Events can be the reason to visit Key West—or the reason a normally quiet week becomes expensive and crowded. Dates change, so check the official organizer before booking nonrefundable travel.
Sunset Celebration at Mallory Square
The Sunset Celebration at Mallory Square takes place every evening. Visitors gather before sunset for waterfront views, street performers, musicians, and local artisans. Arrive early during winter and festival weekends because the square can become crowded.
Major 2026 and 2027 Events
| Event | Confirmed Date | What to Expect |
| Conch Republic Independence Celebration | April 17-26, 2026 | Parades, maritime events, parties, and playful local history |
| Hemingway Days | July 21-26, 2026 | Literary events, look-alike activities, and fishing traditions |
| Key West Lobsterfest | August 5-9, 2026 | Lobster dishes, street events, and live entertainment |
| Fantasy Fest | October 16-25, 2026 | Costumes, performances, parades, and nightlife |
| Race World Offshore Key West World Championship | November 1-8, 2026 | Offshore powerboat racing and related waterfront events |
| Key West Film Festival | November 18-22, 2026 | Independent films, screenings, panels, and filmmaker programs |
| Key West Literary Seminar | January 7-10, 2027 | Readings, lectures, interviews, and literary discussions |
| Key West Half Marathon & Runfest | January 15-17, 2027 | Half marathon, shorter races, and social events |
| Key West Food & Wine Festival | January 27-31, 2027 | Ticketed tastings, dinners, and culinary programs; many events are 21+ |
Choosing an Event Week
Hemingway Days is a strong choice for literary fans and anglers. Lobsterfest appeals to food and music travelers. Fantasy Fest is best for adults who want costumes and nightlife, while the Film Festival and Literary Seminar offer a quieter cultural focus. Families and travelers seeking an early night should study the event footprint and lodging location before booking.
Tips for Traveling to Key West
Book Around Weather and Demand
Reserve winter lodging, Dry Tortugas transportation, and major-event weekends early. During hurricane season, favor refundable hotel rates and flexible flight or tour policies. Recheck the forecast as the trip approaches rather than relying on climate averages.
Plan Transportation Before You Arrive
Travelers can fly into Key West International Airport or drive the Overseas Highway. Once in Old Town, walking, cycling, hotel shuttles, taxis, rideshares, and public transit may reduce the need for a car. Review current routes through Key West Transit, including the Duval Loop, and ask your lodging about parking fees before renting a vehicle.
Reserve Dry Tortugas Transportation Early
Dry Tortugas National Park lies almost 70 miles west of Key West and is accessible only by boat or seaplane. The National Park Service recommends advance reservations for concession-operated transportation. Ferry and flight schedules are weather-dependent, and the remote park has limited services, so read the operator’s packing and cancellation rules before departure.
Pack for Sun, Rain, Wind, and Air-Conditioning
Bring light, breathable clothing, comfortable walking shoes, a reusable water bottle, sunglasses, rain protection, and reef-conscious sun protection. Add a light layer for winter evenings, breezy boat rides, and strongly air-conditioned restaurants. In the hottest months, schedule outdoor sightseeing early, rest in shade or air-conditioning at midday, and stay hydrated.
Choose the Right Neighborhood
Old Town is convenient for Duval Street, Mallory Square, museums, and historic architecture, but it can be noisy during festivals and nightlife hours. The eastern side of the island may feel quieter but can require more transportation. Check the exact location—not only the “Key West” label—before booking.
Experience Local Culture Respectfully
Try conch fritters, visit historic homes, explore galleries, and attend the nightly sunset celebration, but also respect residential streets, local wildlife, and reef rules. Key West’s appeal comes from its mix of maritime history, military history, writers, artists, colorful conch-style homes, and a relaxed island culture—not from one attraction alone.
Key West offers a different advantage in every season. Winter brings the most dependable dry weather but also the greatest demand. Spring offers an excellent balance of warmth, events, fishing, and bird migration. Summer favors warm-water activities but requires heat and storm planning. Fall can deliver value and major festivals, provided travelers accept higher rain and hurricane-season risk. Match the season to your priorities, then verify the forecast and event calendar before paying for nonrefundable plans.
Frequently Asked Questions
What is the best time to travel to Key West?
Late November through April is generally best for lower rainfall, lower humidity, and comfortable sightseeing. March and April offer an especially good balance of warm days and relatively low rain. Winter is peak season, so expect stronger demand and higher lodging prices.
What is the weather like during the best time to visit?
From December through April, normal average daily highs range from about 78°F to 83°F, while average lows range from about 68°F to 73°F. Rainfall is usually lower than in late summer and early fall, though cold fronts can bring wind, rough seas, and cooler evenings.
When is the cheapest time to visit Key West?
September and parts of early fall often have lower lodging demand than winter, especially outside Fantasy Fest and holiday weekends. The savings come with more heat, higher rainfall, and hurricane-season risk, so flexible booking terms are important.
When is hurricane season in Key West?
The official Atlantic hurricane season runs from June 1 through November 30. Activity is not evenly spread across those months, and a distant storm can still affect flights, road access, ferries, tours, or surf conditions. Monitor official forecasts and understand cancellation coverage.
What major events take place during the drier months?
Winter and early spring can include Key West Holiday Fest, the Key West Literary Seminar, Key West Half Marathon & Runfest, Key West Food & Wine Festival, and the April Conch Republic Independence Celebration. Dates change annually, so confirm the organizer’s calendar before booking.
When is the best time for snorkeling and diving?
Late spring and summer often bring warm water and calmer average winds, but thunderstorms and tropical weather can interrupt trips. Winter has pleasant air temperatures, yet passing cold fronts may create rougher seas. The day’s marine forecast matters more than the calendar alone.
When is the best time for birdwatching at Dry Tortugas?
Spring migration is the preferred period, with activity building in March and peaking from April through mid-May. Fall migration also brings many transient birds, including raptor movement in September and October. Transportation and viewing conditions remain weather-dependent.
Do I need a car in Key West?
Not always. Much of Old Town is walkable, and bikes, taxis, rideshares, hotel shuttles, and public transit can cover many trips. A car may help with travel elsewhere in the Keys, but parking fees and limited spaces can make it inconvenient for an Old Town-focused stay.
Sources
- National Weather Service: Florida Keys Monthly Climate Normals — monthly average high and low temperatures and rainfall.
- National Hurricane Center: Tropical Cyclone Climatology — official Atlantic hurricane-season dates and seasonal context.
- Florida Keys & Key West Official Events Calendar — current event listings and dates.
- National Park Service: Birds at Dry Tortugas — spring and fall migration timing.
- National Park Service: Dry Tortugas Weather — seasonal wind, sea, visibility, and hurricane considerations.
- City of Key West: Southernmost Point — the city’s 90-mile-from-Cuba landmark and current visitor information.
