Wedding weather data · USA
Wedding weather in Key West
In Key West, the driest months for a wedding are February and March, when rain falls on about 15% of days. The wettest is September, with rain on about 64% of days. Here is the full picture, month by month, from 10 years of daily weather records.
Rain odds and temperatures by month
| Month | Chance of a rainy day | Heavy rain | Rainy days | Avg high | Avg low | Sunshine |
|---|---|---|---|---|---|---|
| January | 25% | 3% | 7.6 | 73°F (23°C) | 69°F (21°C) | 9.4 h/day |
| February ✦ | 22% | 3% | 6.1 | 74°F (23°C) | 70°F (21°C) | 10.3 h/day |
| March ✦ | 15% | 3% | 4.5 | 76°F (24°C) | 73°F (23°C) | 11 h/day |
| April | 22% | 4% | 6.5 | 78°F (26°C) | 75°F (24°C) | 12.1 h/day |
| May | 35% | 8% | 10.8 | 81°F (27°C) | 78°F (25°C) | 12.1 h/day |
| June | 54% | 10% | 16.2 | 83°F (29°C) | 80°F (27°C) | 11.3 h/day |
| July | 48% | 5% | 15 | 85°F (30°C) | 82°F (28°C) | 12.2 h/day |
| August | 58% | 11% | 18.1 | 86°F (30°C) | 82°F (28°C) | 11.5 h/day |
| September | 64% | 16% | 19.3 | 85°F (29°C) | 81°F (27°C) | 10.5 h/day |
| October | 52% | 12% | 16.1 | 82°F (28°C) | 79°F (26°C) | 10 h/day |
| November | 28% | 6% | 8.5 | 79°F (26°C) | 76°F (24°C) | 9.7 h/day |
| December | 24% | 6% | 7.3 | 75°F (24°C) | 72°F (22°C) | 9.3 h/day |
Source: Open-Meteo Historical Weather API (ERA5 reanalysis), daily data 2015–2024 for 24.56, -81.78. Rainy day ≥ 1 mm, heavy rain ≥ 10 mm. Climatology, not a forecast.
Best months for a wedding in Key West
Weighing low rain odds with comfortable temperatures (roughly 18–29 °C / 65–84 °F highs), the best months for an outdoor wedding in Key West are February and March.
When to be careful
September is the wettest month in Key West: rain falls on about 64% of days, and 16% of days bring heavy rain (10 mm or more). Book a solid backup if you marry then.
How to read these numbers
A "rainy day" is a day with at least 1 mm (0.04 in) of rain. A 30% chance means about 3 in 10 days in that month saw at least a little rain, often a short shower. For your exact date and venue, use our free rain odds tool.
Key West weather month by month
What a wedding day in Key West usually looks like in each month, from 10 years of daily weather records.
Key West weather in January
In January, it rains (1 mm or more) on 25% of days in Key West, about 7.6 days in the month, and 3% of days bring heavy rain. Typical highs are 73°F (23°C), lows 69°F (21°C), with around 9.4 hours of sunshine a day. Average odds: plan outdoors, but book a rain plan you would actually like.
Key West weather in February
In February, it rains (1 mm or more) on 22% of days in Key West, about 6.1 days in the month, and 3% of days bring heavy rain. Typical highs are 74°F (23°C), lows 70°F (21°C), with around 10.3 hours of sunshine a day. One of the driest months here: a good bet for an outdoor ceremony.
Key West weather in March
In March, it rains (1 mm or more) on 15% of days in Key West, about 4.5 days in the month, and 3% of days bring heavy rain. Typical highs are 76°F (24°C), lows 73°F (23°C), with around 11 hours of sunshine a day. One of the driest months here: a good bet for an outdoor ceremony.
Key West weather in April
In April, it rains (1 mm or more) on 22% of days in Key West, about 6.5 days in the month, and 4% of days bring heavy rain. Typical highs are 78°F (26°C), lows 75°F (24°C), with around 12.1 hours of sunshine a day. One of the driest months here: a good bet for an outdoor ceremony.
Key West weather in May
In May, it rains (1 mm or more) on 35% of days in Key West, about 10.8 days in the month, and 8% of days bring heavy rain. Typical highs are 81°F (27°C), lows 78°F (25°C), with around 12.1 hours of sunshine a day. Average odds: plan outdoors, but book a rain plan you would actually like.
Key West weather in June
In June, it rains (1 mm or more) on 54% of days in Key West, about 16.2 days in the month, and 10% of days bring heavy rain. Typical highs are 83°F (29°C), lows 80°F (27°C), with around 11.3 hours of sunshine a day. One of the wettest months here: plan a covered ceremony or a tent from the start.
Key West weather in July
In July, it rains (1 mm or more) on 48% of days in Key West, about 15 days in the month, and 5% of days bring heavy rain. Typical highs are 85°F (30°C), lows 82°F (28°C), with around 12.2 hours of sunshine a day. Average odds: plan outdoors, but book a rain plan you would actually like.
Key West weather in August
In August, it rains (1 mm or more) on 58% of days in Key West, about 18.1 days in the month, and 11% of days bring heavy rain. Typical highs are 86°F (30°C), lows 82°F (28°C), with around 11.5 hours of sunshine a day. One of the wettest months here: plan a covered ceremony or a tent from the start.
Key West weather in September
In September, it rains (1 mm or more) on 64% of days in Key West, about 19.3 days in the month, and 16% of days bring heavy rain. Typical highs are 85°F (29°C), lows 81°F (27°C), with around 10.5 hours of sunshine a day. One of the wettest months here: plan a covered ceremony or a tent from the start.
Key West weather in October
In October, it rains (1 mm or more) on 52% of days in Key West, about 16.1 days in the month, and 12% of days bring heavy rain. Typical highs are 82°F (28°C), lows 79°F (26°C), with around 10 hours of sunshine a day. Average odds: plan outdoors, but book a rain plan you would actually like.
Key West weather in November
In November, it rains (1 mm or more) on 28% of days in Key West, about 8.5 days in the month, and 6% of days bring heavy rain. Typical highs are 79°F (26°C), lows 76°F (24°C), with around 9.7 hours of sunshine a day. Average odds: plan outdoors, but book a rain plan you would actually like.
Key West weather in December
In December, it rains (1 mm or more) on 24% of days in Key West, about 7.3 days in the month, and 6% of days bring heavy rain. Typical highs are 75°F (24°C), lows 72°F (22°C), with around 9.3 hours of sunshine a day. Average odds: plan outdoors, but book a rain plan you would actually like.
Frequently asked questions
What is the best month to get married in Key West?
Based on 10 years of weather data, March is the driest month in Key West, with rain on about 15% of days and average highs around 76°F (24°C). Overall, the best months for an outdoor wedding there are February and March.
What is the rainiest month in Key West?
September is the rainiest month in Key West: on average 19.3 days of the month see at least 1 mm of rain, and about 16% of days bring heavy rain.
Will it rain on my wedding day in Key West?
Nobody can forecast your wedding day months ahead. What history shows is the chance of rain: in February it rains on about 22% of days in Key West. Check your exact date with our free rain odds tool, then watch the real forecast from about 7 days out.