When is the best time to go to Key West
The chart above shows the best time of year to visit Key West, United States. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.
Average temperatures in Key West
Key West weather by month
Please note our recommendations for when to visit Key West are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.
January
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 21°C | 47mm | 8.5hrs | 11.6hrs | 24°C |
January is a reasonably dry, humid month in Key West and the temperature is generally warm.
It is perhaps the perfect month to visit Key West, with some inordinately good weather at this time of year.
January is in the winter in Key West and is typically the coldest month of the year. Daytime maximum temperatures average around a muggy 24°C (75°F), whilst at night 17°C (63°F) is normal.
On average January is the driest month of the year in Key West with around 47mm 1.8 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.5 hours of sunshine per day.
February
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 22°C | 48mm | 9.1hrs | 12.1hrs | 24°C |
February in Key West is generally reasonably dry with the temperature being warm.
It is perhaps the perfect month to visit Key West, with some extremely good weather at this time of year.
February is in the winter in Key West and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a muggy 24°C (75°F), whilst at night 17°C (63°F) is normal.
On average February is the 2nd driest month of the year in Key West with around 48mm 1.9 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.1 hours of sunshine per day.
Key West weather in February »
March
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 23°C | 40mm | 10.3hrs | 12.7hrs | 24°C |
The weather in March in Key West is characteristically warm, humid and reasonably dry.
It is perhaps the perfect month to visit Key West, with some particularly good weather at this time of year.
March is in the spring in Key West and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a muggy 26°C (79°F), whilst at night 20°C (67°F) is normal.
On average March is the 3rd driest month of the year in Key West with around 40mm 1.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.3 hours of sunshine per day.
April
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 25°C | 46mm | 11.2hrs | 13.5hrs | 25°C |
Key West's weather in April is typically hot and reasonably dry in nature.
It is perhaps the perfect month to visit Key West, with some very good weather at this time of year.
April is in the spring in Key West and is typically the 4th coldest month of the year. Daytime maximum temperatures average around 28°C (82°F), whilst at night 21°C (70°F) is normal.
On average April is the 4th driest month of the year in Key West with around 46mm 1.8 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.
On the flip side this corresponds to an average of 11.2 hours of sunshine per day.
May
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 26°C | 107mm | 11.3hrs | 14.1hrs | 27°C |
May is a damp, humid month in Key West and the temperature is generally hot.
Although outside the main holiday season, there is still plenty of pretty acceptable weather around this time of year. This makes it an okay time to visit Key West.
May is in the spring in Key West and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a steamy 29°C (85°F), whilst at night 23°C (74°F) is normal.
On average May is the 5th driest month of the year in Key West with around 107mm 4.2 inches of rain making it a damp time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 11.3 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 28°C | 144mm | 10.8hrs | 11.6hrs | 29°C |
Key West's weather in June is typically hot, humid and wet in nature.
Based on weather alone, this is probably a time of year to avoid going to Key West for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
June is in the summer in Key West and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 25°C (77°F) is normal.
On average June is the 6th driest month of the year in Key West with around 144mm 5.7 inches of rain making it a wet time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.8 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 29°C | 104mm | 10.9hrs | 12.1hrs | 30°C |
July in Key West is generally damp with the temperature being very hot.
Based on weather alone, this is probably a time of year to avoid going to Key West for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
July is in the summer in Key West and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 32°C (89°F), whilst at night 26°C (78°F) is normal.
On average July is the 6th wettest month of the year in Key West with around 104mm 4.1 inches of rain making it a damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.9 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 29°C | 125mm | 10.3hrs | 12.7hrs | 30°C |
The weather in August in Key West is characteristically very hot, humid and wet.
Based on weather alone, this is probably a time of year to avoid going to Key West for your holidays. The weather is often not a good and not conducive to spending time outdoors.
August is in the summer in Key West and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a steamy 32°C (90°F), whilst at night 26°C (78°F) is normal.
On average August is the 5th wettest month of the year in Key West with around 125mm 4.9 inches of rain making it a wet time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.3 hours of sunshine per day.
September
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 28°C | 166mm | 9.5hrs | 13.5hrs | 29°C |
Key West's weather in September is typically very hot, humid and wet in nature.
Based on weather alone, this is probably a time of year to avoid going to Key West for your holidays. The weather is often not a good and not conducive to spending time outdoors.
September is in the fall / autumn in Key West and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 25°C (77°F) is normal.
On average September is the 4th wettest month of the year in Key West with around 166mm 6.5 inches of rain making it a wet time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.5 hours of sunshine per day.
Key West weather in September »
October
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 26°C | 116mm | 8.8hrs | 14.1hrs | 28°C |
October is a damp, humid month in Key West and the temperature is generally hot.
Although outside the main holiday season, there is still plenty of pretty acceptable weather around this time of year. This makes it an okay time to visit Key West.
October is in the fall / autumn in Key West and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a steamy 29°C (85°F), whilst at night 23°C (74°F) is normal.
On average October is the 3rd wettest month of the year in Key West with around 116mm 4.5 inches of rain making it a damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.8 hours of sunshine per day.
November
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 24°C | 51mm | 8.2hrs | 11.6hrs | 26°C |
November is a reasonably dry, humid month in Key West and the temperature is generally hot.
It is perhaps the perfect month to visit Key West, with some surprisingly good weather at this time of year.
November is in the fall / autumn in Key West and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (80°F), whilst at night 21°C (69°F) is normal.
On average November is the 2nd wettest month of the year in Key West with around 51mm 2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.2 hours of sunshine per day.
Key West weather in November »
December
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 22°C | 45mm | 8hrs | 12.1hrs | 25°C |
December in Key West is generally reasonably dry with the temperature being warm.
It is perhaps a good month to visit Key West, with some very good weather at this time of year.
December is in the winter in Key West and is typically the warmest month of the year. Daytime maximum temperatures average around a muggy 24°C (76°F), whilst at night 18°C (64°F) is normal.
On average December is the wettest month of the year in Key West with around 45mm 1.8 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.
On the flip side this corresponds to an average of 8 hours of sunshine per day.
Other monthly averages
Key West weather stats
| Hottest month: | August | 31.8°C 89.2°F |
|---|---|---|
| Driest month: | March | 40mm 1.6ins |
| Sunniest month: | April | 11.2hrs |
| Coldest month: | January | 23.4°C 74.1°F |
| Wettest month: | September | 166mm 6.5ins |
| Warmest sea: | August | 29.9°C 85.8°F |
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