Monthly weather forecast and climate
Islamorada, FL

Weather in January

January, like December, is an agreeable winter month in Islamorada, Florida, with temperature in the range of an average high of 72.7°F (22.6°C) and an average low of 66.9°F (19.4°C). January is the coldest month, with an average high-temperature of 72.7°F (22.6°C) and an average low-temperature of 66.9°F (19.4°C). Weather in January »

Weather in February

February, the last month of the winter, in Islamorada, is a warm month, with average temperature ranging between min 69.4°F (20.8°C) and max 73.6°F (23.1°C). In February, the average high-temperature is almost the same as in January - a warm 73.6°F (23.1°C). Weather in February »

Weather in March

March, the first month of the spring, in Islamorada, is still a warm month, with average temperature varying between 74.5°F (23.6°C) and 70.2°F (21.2°C). In March, the average high-temperature is relatively the same as in February - a still warm 74.5°F (23.6°C). Weather in March »

Weather in April

April, the same as March, is another warm spring month in Islamorada, Florida, with temperature in the range of an average high of 77.5°F (25.3°C) and an average low of 75°F (23.9°C). In April, the average high-temperature is almost the same as in March - a still moderately hot 77.5°F (25.3°C). Weather in April »

Weather in May

The last month of the spring, May, is another warm month in Islamorada, Florida, with temperature in the range of an average high of 80.6°F (27°C) and an average low of 78.1°F (25.6°C). In May, the average high-temperature is essentially the same as in April - a still warm 80.6°F (27°C). Weather in May »

Weather in June

June, the first month of the summer, in Islamorada, is still a warm month, with average temperature varying between 81.1°F (27.3°C) and 83.7°F (28.7°C). In June, the average high-temperature is essentially the same as in May - a still moderately hot 83.7°F (28.7°C). Weather in June »

Weather in July

July, like June, in Islamorada, Florida, is another warm summer month, with temperature in the range of an average high of 84.7°F (29.3°C) and an average low of 82.4°F (28°C). In Islamorada, the average high-temperature is relatively the same as in June - a still warm 84.7°F (29.3°C). Weather in July »

Weather in August

August, the last month of the summer, in Islamorada, is also a moderately hot month, with average temperature varying between 82.9°F (28.3°C) and 85.5°F (29.7°C). August is the warmest month, with an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 82.9°F (28.3°C). In August, the average heat index is estimated at a very hot 95.4°F (35.2°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Islamorada, Florida, with average temperature varying between 81.7°F (27.6°C) and 84.6°F (29.2°C). In September, the average high-temperature is almost the same as in August - a still warm 84.6°F (29.2°C). Weather in September »

Weather in October

October, like September, in Islamorada, Florida, is a moderately hot autumn month, with temperature in the range of an average high of 82.2°F (27.9°C) and an average low of 78.8°F (26°C). In October, the average high-temperature is relatively the same as in September - a still warm 82.2°F (27.9°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a moderately hot month in Islamorada, Florida, with average temperature fluctuating between 74.1°F (23.4°C) and 77.7°F (25.4°C). In November, the average high-temperature is essentially the same as in October - a still warm 77.7°F (25.4°C). Weather in November »

Weather in December

The first month of the winter, December, is also a moderately hot month in Islamorada, Florida, with average temperature ranging between max 75.2°F (24°C) and min 71.1°F (21.7°C). In December, the average high-temperature is almost the same as in November - a still warm 75.2°F (24°C). Weather in December »
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FAQ

What is the coldest month in Islamorada?

January is the coldest month, with an average high-temperature of 72.7°F (22.6°C) and an average low-temperature of 66.9°F (19.4°C).

How much does it rain in Islamorada?

Throughout the year, there are 190.1 rainfall days, and 27.05" (687mm) of precipitation is accumulated.

What are the months with the coldest ocean in Islamorada?

January and February, with an average ocean temperature of 73.9°F (23.3°C), are months with the coldest seawater in Islamorada, Florida.

What is the month with the lowest UV index in Islamorada?

The month with the lowest UV index is January, with an average maximum UV index of 5.

What is the most humid month in Islamorada?

February, June and December, with an average relative humidity of 76%, are most humid months.

What is the least humid month in Islamorada?

The least humid month is March, with an average relative humidity of 73%.

What is the driest month in Islamorada?

March is the month with the least rainfall. Rain falls for 11.4 days and accumulates 0.59" (15mm) of precipitation.

What is the month with the highest UV index in Islamorada?

Months with the highest UV index are April through October, with an average maximum UV index of 7.

When are the longest days in Islamorada?

The month with the longest days is June, with an average of 13.7h of daylight.

What month has the most sunshine in Islamorada?

The month with the most sunshine in Islamorada, Florida, is July, with an average of 11h of sunshine.

What is the warmest month in Islamorada?

The warmest month in Islamorada, Florida, is August, with an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 82.9°F (28.3°C).

What is the rainiest month in Islamorada?

August is the month with the most rainfall in Islamorada. Rain falls for 20.9 days and accumulates 4.33" (110mm) of precipitation.

What is the month with the warmest ocean in Islamorada?

August is the month with the warmest seawater in Islamorada, with an average ocean temperature of 86.5°F (30.3°C).

What is the month with the shortest days in Islamorada?

December has the shortest days of the year, with an average of 10.6h of daylight.

What is the month with the least sunshine in Islamorada?

With an average of 6.4h of sunshine, December has the least sunshine of the year.

Average temperature
Islamorada, FL

Average temperature - Islamorada, FL

The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is January (72.7°F).

The month with the highest average low temperature is August (82.9°F).
The coldest month (with the lowest average low temperature) is January (66.9°F).

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Average pressure
Islamorada, FL

Average pressure - Islamorada, FL

The month with the highest atmospheric pressure is January (30.1").
Months with the lowest atmospheric pressure are September and October (29.94").

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Average wind speed
Islamorada, FL

Average wind speed - Islamorada, FL

The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).

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Average humidity
Islamorada, FL

Average humidity - Islamorada, FL

Months with the highest relative humidity are February, June and December (76%).
The month with the lowest relative humidity is March (73%).

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Average rainfall
Islamorada, FL

Average rainfall - Islamorada, FL

The wettest month (with the highest rainfall) is August (4.33").
The driest month (with the least rainfall) is March (0.59").

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Average rainfall days
Islamorada, FL

Average rainfall days - Islamorada, FL

The month with the highest number of rainy days is September (22.9 days).
The month with the least rainy days is February (9.7 days).

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Average sea temperature
Islamorada, FL

Average sea temperature - Islamorada, FL

The best month for swimming (with the highest average sea temperature) is August (86.6°F).
The coldest months (with the lowest average sea temperature) are January and February (73.9°F).

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Average daylight / Average sunshine
Islamorada, FL

Average daylight / Average sunshine - Islamorada, FL

The month with the longest days is June (Average daylight: 13.7h).
The month with the shortest days is December (Average daylight: 10.6h).

The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is December (Average sunshine: 6.4h).

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Average sunshine days
Islamorada, FL

Average sunshine days - Islamorada, FL

The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is September (5.2 days).

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Average UV index
Islamorada, FL

Average UV index - Islamorada, FL

Months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The month with the lowest UV index is January (UV index 5).

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Average visibility
Islamorada, FL

Average visibility - Islamorada, 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).

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