Monthly weather forecast and climate
Longboat Key, FL

January, like December, is another pleasant winter month in Longboat Key, Florida, with average temperature ranging between max 68.5°F (20.3°C) and min 56.1°F (13.4°C). January is the coldest month, with an average high-temperature of 68.5°F (20.3°C) and an average low-temperature of 56.1°F (13.4°C). Weather in January »

February, the last month of the winter, in Longboat Key, is another pleasant month, with average temperature ranging between min 58.6°F (14.8°C) and max 71.2°F (21.8°C). In February, the average high-temperature is almost the same as in January - a still agreeable 71.2°F (21.8°C). Weather in February »

The first month of the spring, March, is a warm month in Longboat Key, Florida, with average temperature fluctuating between 61.5°F (16.4°C) and 74.1°F (23.4°C). In March, the average high-temperature is almost the same as in February - a moderately hot 74.1°F (23.4°C). Weather in March »

April, the same as March, is another warm spring month in Longboat Key, Florida, with average temperature fluctuating between 67.8°F (19.9°C) and 80.2°F (26.8°C). In Longboat Key, Florida, the average high-temperature slightly increases, from 74.1°F (23.4°C) in March, to a still warm 80.2°F (26.8°C). Weather in April »

May, the last month of the spring, in Longboat Key, is also a moderately hot month, with average temperature varying between 84.2°F (29°C) and 72.7°F (22.6°C). In May, the average high-temperature is practically the same as in April - a still warm 84.2°F (29°C). Weather in May »

The first month of the summer, June, is a tropical month in Longboat Key, Florida, with temperature in the range of an average high of 87.3°F (30.7°C) and an average low of 77.5°F (25.3°C). In June, the average high-temperature is essentially the same as in May - a hot 87.3°F (30.7°C). Weather in June »

July, the same as June, in Longboat Key, Florida, is another hot summer month, with average temperature ranging between max 88°F (31.1°C) and min 78.8°F (26°C). In July, the average high-temperature is almost the same as in June - a still tropical 88°F (31.1°C). Weather in July »

The last month of the summer, August, is another hot month in Longboat Key, Florida, with average temperature fluctuating between 88.5°F (31.4°C) and 79.7°F (26.5°C). With an average high-temperature of 88.5°F (31.4°C) and an average low-temperature of 79.7°F (26.5°C), August is the warmest month. The average heat index in August is estimated at a blistering 104°F (40°C). Weather in August »

The first month of the autumn, September, is still a hot month in Longboat Key, Florida, with average temperature varying between 77.4°F (25.2°C) and 86.9°F (30.5°C). In September, the average high-temperature is almost the same as in August - a still hot 86.9°F (30.5°C). Weather in September »

October, the same as September, is a moderately hot autumn month in Longboat Key, Florida, with average temperature ranging between min 71.8°F (22.1°C) and max 82.6°F (28.1°C). In October, the average high-temperature is almost the same as in September - a moderately hot 82.6°F (28.1°C). Weather in October »

The last month of the autumn, November, is another warm month in Longboat Key, Florida, with average temperature fluctuating between 76.3°F (24.6°C) and 64.4°F (18°C). In Longboat Key, the average high-temperature slightly decreases, from a moderately hot 82.6°F (28.1°C) in October, to a still warm 76.3°F (24.6°C). Weather in November »

The first month of the winter, December, is also an agreeable month in Longboat Key, Florida, with average temperature varying between 60.8°F (16°C) and 72.5°F (22.5°C). In December, the average high-temperature is relatively the same as in November - an agreeable 72.5°F (22.5°C). Weather in December »

What is the coldest month in Longboat Key?

January is the coldest month, with an average high-temperature of 68.5°F (20.3°C) and an average low-temperature of 56.1°F (13.4°C).

How much does it rain in Longboat Key?

Throughout the year, in Longboat Key, there are 183.1 rainfall days, and 34.92" (887mm) of precipitation is accumulated.

When is the ocean coldest in Longboat Key?

The month with the coldest seawater in Longboat Key is January, with an average ocean temperature of 64°F (17.8°C).

What is the month with the lowest UV index in Longboat Key?

With an average maximum UV index of 4, January is the month with the lowest UV index.

What is the driest month in Longboat Key?

February and November are months with the least rain when the rain falls for 8.3 days and typically aggregates up to 1.06" (27mm) of rain.

What is the least humid month in Longboat Key?

March through May, with an average relative humidity of 72%, are the least humid months.

What month has the most sunshine in Longboat Key?

May has the most sunshine of the year in Longboat Key, with an average of 11.1h of sunshine.

What is the month with the highest UV index in Longboat Key?

Months with the highest UV index are May through September, with an average maximum UV index of 7.

When are the longest days in Longboat Key?

With an average of 13.9h of daylight, June has the longest days of the year in Longboat Key, Florida.

What is the warmest month in Longboat Key?

With an average high-temperature of 88.5°F (31.4°C) and an average low-temperature of 79.7°F (26.5°C), August is the warmest month.

What is the wettest month in Longboat Key?

The month with the most rainfall in Longboat Key is August when the rain falls for 26.8 days and typically aggregates up to 6.42" (163mm) of precipitation.

What month is the ocean warmest in Longboat Key?

With an average ocean temperature of 86.7°F (30.4°C), August is the month with the warmest seawater.

What is the most humid month in Longboat Key?

The most humid month is December, with an average relative humidity of 76%.

What is the month with the shortest days in Longboat Key?

The month with the shortest days in Longboat Key, Florida, is December, with an average of 10.4h of daylight.

What is the month with the least sunshine in Longboat Key?

December has the least sunshine of the year, with an average of 6.5h of sunshine.
Average temperature - Longboat Key, FL
Average pressure - Longboat Key, FL

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is September (29.95").

Average wind speed - Longboat Key, FL

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).

Average humidity - Longboat Key, FL
Average rainfall - Longboat Key, FL

The wettest month (with the highest rainfall) is August (6.42").
The driest months (with the least rainfall) are February and November (1.06").

Average rainfall days - Longboat Key, FL

The month with the highest number of rainy days is August (26.8 days).
Months with the least rainy days are January, February and November (8.3 days).

Average sea temperature - Longboat Key, FL

The best month for swimming (with the highest average sea temperature) is August (86.7°F).
The coldest month (with the lowest average sea temperature) is January (64.1°F).

Average daylight / Average sunshine - Longboat Key, FL

The month with the longest days is June (Average daylight: 13.9h).
The month with the shortest days is December (Average daylight: 10.4h).

The month with the most sunshine is May (Average sunshine: 11.1h).
The month with the least sunshine is December (Average sunshine: 6.5h).

Average sunshine days - Longboat Key, FL
Average UV index - Longboat Key, FL
Average visibility - Longboat Key, FL

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).