Climate and monthly weather forecastIslamorada, FL
Climate and monthly weather forecast
Weather in January
January, like December, is an agreeable winter month in Islamorada, Florida, with an average temperature fluctuating between 72.7°F (22.6°C) and 66.9°F (19.4°C). January, with its high-temperature average of 72.7°F (22.6°C) and a low-temperature average of 66.9°F (19.4°C), is the coldest month. Weather in January »Weather in February
The last month of the winter, February, is a moderately hot month in Islamorada, Florida, with an average temperature ranging between min 69.4°F (20.8°C) and max 73.6°F (23.1°C). The weather during February records an average high-temperature of a moderately hot 73.6°F (23.1°C), closely mirroring the preceding month. Weather in February »Weather in March
The first month of the spring, March, is still a warm month in Islamorada, Florida, with an average temperature ranging between max 74.5°F (23.6°C) and min 70.2°F (21.2°C). With the onset of March, the average high-temperature stands at a still moderately hot 74.5°F (23.6°C), closely aligned with February's 73.6°F (23.1°C). Weather in March »Weather in April
April, the same as March, is another warm spring month in Islamorada, Florida, with an average temperature fluctuating between 75°F (23.9°C) and 77.5°F (25.3°C). The arrival of April brings an average high-temperature of a still warm 77.5°F (25.3°C), closely following the temperature pattern of March. Weather in April »Weather in May
May, the last month of the spring in Islamorada, is also a moderately hot month, with an average temperature ranging between max 80.6°F (27°C) and min 78.1°F (25.6°C). The transition into May is marked with an average high-temperature of a still moderately hot 80.6°F (27°C), showing an insignificant shift from April's 77.5°F (25.3°C). Weather in May »Weather in June
The first month of the summer, June, is also a moderately hot month in Islamorada, Florida, with an average temperature ranging between max 83.7°F (28.7°C) and min 81.1°F (27.3°C). June's onset records a minor alteration in the average high-temperature to a still warm 83.7°F (28.7°C) from May's 80.6°F (27°C). Weather in June »Weather in July
July, like June, in Islamorada, Florida, is a moderately hot summer month, with an average temperature ranging between max 84.7°F (29.3°C) and min 82.4°F (28°C). As June turns into July, the average high-temperatures rest at a still moderately hot 84.7°F (29.3°C), showing a minor variation from the prior month. Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Islamorada, Florida, with temperature in the range of an average low of 82.9°F (28.3°C) and an average high of 85.5°F (29.7°C). With an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 82.9°F (28.3°C), August is the warmest month. August's average heat index is calculated to be a sweltering 95°F (35°C). Weather in August »Weather in September
September, the first month of the autumn in Islamorada, is also a moderately hot month, with an average temperature ranging between min 81.7°F (27.6°C) and max 84.6°F (29.2°C). The unfolding of September shows an average high-temperature of a still warm 84.6°F (29.2°C), indicating a slight variance from August's 85.5°F (29.7°C). Weather in September »Weather in October
October, like September, in Islamorada, Florida, is a moderately hot autumn month, with an average temperature fluctuating between 82.2°F (27.9°C) and 78.8°F (26°C). October's commencement is accompanied by an average high-temperature of a still warm 82.2°F (27.9°C), diverging marginally from September's 84.6°F (29.2°C). Weather in October »Weather in November
November, the last month of the autumn in Islamorada, is also a moderately hot month, with temperature in the range of an average high of 77.7°F (25.4°C) and an average low of 74.1°F (23.4°C). Upon the onset of November, Islamorada witnesses an average high-temperature of a still warm 77.7°F (25.4°C), showing a close resemblance to the prior month. Weather in November »Weather in December
December, the first month of the winter in Islamorada, is still a warm month, with an average temperature fluctuating between 75.2°F (24°C) and 71.1°F (21.7°C). The average high-temperature in December, at a still moderately hot 75.2°F (24°C), reveals a modest deviation from November's 77.7°F (25.4°C). Weather in December »Updated: Jun 21, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In Islamorada, January registers the lowest temperatures, averaging 72.7°F (22.6°C) at the peak and 66.9°F (19.4°C) at the lowest.
In Islamorada, during the entire year, the rain falls for 190.1 days and collects up to 27.05" (687mm) of precipitation.
January and February, with an average ocean temperature of 73.9°F (23.3°C), are months with the coldest seawater.
January is the month with the lowest UV index, with an average maximum UV index of 5.
The months with the highest humidity are February, June and December, with an average relative humidity of 76%.
The least humid month is March, with an average relative humidity of 73%.
The month with the least rainfall is March, when the rain falls for 11.4 days and typically collects 0.59" (15mm) of precipitation.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Islamorada, Florida, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
The months with the highest UV index are April through October, with an average maximum UV index of 7.
The month with the longest days is June, with an average of 13h and 42min of daylight.
The month with the most sunshine is July, with an average of 11h of sunshine.
Islamorada's temperatures peak on average in August, reaching 85.5°F (29.7°C) at their highest and 82.9°F (28.3°C) at their lowest.
August is the month with the most rainfall. Rain falls for 20.9 days and accumulates 4.33" (110mm) of precipitation.
With an average ocean temperature of 86.5°F (30.3°C), August is the month with the warmest seawater.
December has the shortest days of the year in Islamorada, with an average of 10h and 36min of daylight.
December has the least sunshine of the year in Islamorada, with an average of 6.4h of sunshine.
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).
Average pressure
Islamorada, FL
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
30.01"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.99"Hg
- Average pressure in July:
30.02"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
29.94"Hg - Average pressure in October:
29.94"Hg - Average pressure in November:
30.02"Hg - Average pressure in December:
30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are September and October (29.94"Hg).
Average wind speed
Islamorada, FL
- Average wind speed in January:
12.9mph - Average wind speed in February:
12.4mph - Average wind speed in March:
12.8mph - Average wind speed in April:
12.4mph - Average wind speed in May:
11.6mph - Average wind speed in June:
9.4mph
- Average wind speed in July:
8.9mph - Average wind speed in August:
9.3mph - Average wind speed in September:
9.4mph - Average wind speed in October:
12.5mph - Average wind speed in November:
12.8mph - Average wind speed in December:
12.4mph
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).
Average humidity
Islamorada, FL
The months with the highest relative humidity are February, June and December (76%).
The month with the lowest relative humidity is March (73%).
Average rainfall
Islamorada, FL
- Average rainfall in January:
0.75" - Average rainfall in February:
0.91" - Average rainfall in March:
0.59" - Average rainfall in April:
1.26" - Average rainfall in May:
2.64" - Average rainfall in June:
3.31"
- Average rainfall in July:
3.7" - Average rainfall in August:
4.33" - Average rainfall in September:
4.25" - Average rainfall in October:
3.19" - Average rainfall in November:
1.22" - Average rainfall in December:
0.91"
The wettest month (with the highest rainfall) is August (4.33").
The driest month (with the least rainfall) is March (0.59").
Average rainfall days
Islamorada, FL
- Average rainfall days in January:
10.7 days - Average rainfall days in February:
9.7 days - Average rainfall days in March:
11.4 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
20.1 days
- Average rainfall days in July:
20.9 days - Average rainfall days in August:
20.9 days - Average rainfall days in September:
22.9 days - Average rainfall days in October:
18.2 days - Average rainfall days in November:
14.2 days - Average rainfall days in December:
12.5 days
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).
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).
Average daylight / Average sunshine
Islamorada, FL
- Average daylight in January:
10h and 48min - Average daylight in February:
11h and 18min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 48min - Average daylight in May:
13h and 24min - Average daylight in June:
13h and 42min
- Average daylight in July:
13h and 30min - Average daylight in August:
13h and 0min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 36min - Average daylight in November:
10h and 54min - Average daylight in December:
10h and 36min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in January:
6h and 42min - Average sunshine in February:
8h and 42min - Average sunshine in March:
8h and 42min - Average sunshine in April:
9h and 54min - Average sunshine in May:
10h and 36min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
11h and 0min - Average sunshine in August:
10h and 12min - Average sunshine in September:
9h and 0min - Average sunshine in October:
6h and 54min - Average sunshine in November:
6h and 30min - Average sunshine in December:
6h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days
Islamorada, FL
- Average sunshine days in January:
17.3 days - Average sunshine days in February:
15.2 days - Average sunshine days in March:
17.1 days - Average sunshine days in April:
14.1 days - Average sunshine days in May:
13 days - Average sunshine days in June:
8.1 days
- Average sunshine days in July:
8.4 days - Average sunshine days in August:
7.8 days - Average sunshine days in September:
5.2 days - Average sunshine days in October:
9.1 days - Average sunshine days in November:
11.9 days - Average sunshine days in December:
14.9 days
The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is September (5.2 days).
Average UV index
Islamorada, FL
The 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).
Average cloud cover
Islamorada, FL
The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 26).
Average visibility
Islamorada, FL
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
