Key Largo Water Temperature
Surrounded by a crystal clear, warm ocean teeming with marine life, the island of Key Largo thoroughly deserves its reputation as ‘The Dive Capital of the World’.
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This largest and northernmost of the Florida Keys boasts two state parks, a national park and a national marine sanctuary which was the first U.S. underwater park.
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Key Largo Summary
| Description | Value |
|---|---|
| Current water temperature | / |
| Warmest Month Water Temperature: | August with 86.4°F / 30.2°C |
| Coldest Month Water Temperature: | January with 74.1°F / 23.4°C |
| Warmest Month Air Temperature: | August with 82.6°F / 28.1°C |
| Coldest Month Air Temperature: | January with 68.2°F / 20.1°C |
| Wettest Month: | September with 5.5in / 140.1mm |
| Driest Month: | March with 0in / 0mm |
| Highest Humidity | September with 79.5% |
| Lowest Humidity | April with 67.3% |
| Best Time to Visit: | March, April, May, June, September, October, November |
| Climate Classification | tropical savanna climate with wet summer |
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Key Largo water temperature by month
gulf of mexico water temperature by month
| Max. Water
Temperature (°F) |
ø. Water
Temperature (°F) |
Min. Water
Temperature (°F) |
|
|---|---|---|---|
|
January |
75.6 | 74.3 | 73.4 |
|
February |
75.4 | 74.5 | 73.8 |
|
March |
76.6 | 75.7 | 74.5 |
|
April |
79.3 | 77.9 | 76.6 |
|
May |
82.2 | 80.8 | 79 |
|
June |
84.9 | 84 | 82.2 |
|
July |
86.5 | 85.5 | 84.7 |
|
August |
86.7 | 86.4 | 85.6 |
|
September |
86 | 85.1 | 84.2 |
|
October |
84.2 | 82.6 | 80.4 |
|
November |
80.6 | 78.8 | 77.4 |
|
December |
77.5 | 76.5 | 75.4 |
gulf of mexico water temperature by month
| Max. Water
Temperature (°C) |
ø. Water
Temperature (°C) |
Min. Water
Temperature (°C) |
|
|---|---|---|---|
|
January |
24.2 | 23.5 | 23 |
|
February |
24.1 | 23.6 | 23.2 |
|
March |
24.8 | 24.3 | 23.6 |
|
April |
26.3 | 25.5 | 24.8 |
|
May |
27.9 | 27.1 | 26.1 |
|
June |
29.4 | 28.9 | 27.9 |
|
July |
30.3 | 29.7 | 29.3 |
|
August |
30.4 | 30.2 | 29.8 |
|
September |
30 | 29.5 | 29 |
|
October |
29 | 28.1 | 26.9 |
|
November |
27 | 26 | 25.2 |
|
December |
25.3 | 24.7 | 24.1 |
The warmest water temperature are in August with around 86.4°F / 30.2°C. The coldest in January with an average water temperature of 74.1°F / 23.4°C.
Due to the tropical climate it enjoys all year round, Key Largo is a comfortably warm place to visit any time of the year. The average summer temperature is 89 degrees, but this is made comfortable by cooling ocean waters. In the winter temperatures hover around 75 to 80 degrees, with occasional warmer days.
The island is accessible by two roads. After flying in from Miami International Airport you can be on Key Largo in less than an hour by car or shuttle bus. A Greyhound service is also available.
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Key Largo weather today & 14-day weather forecast
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Key Largo weather by month / climate table
Max. Temperature °F | ø. Temperature °F | Min. Temperature (°F) |
Precip. (in) |
Rainy Days (d) |
Rel. Humidity (%) |
|
|---|---|---|---|---|---|---|
|
January |
77.4 | 68.2 | 60.3 | 0.1 | 0 | 70.4% |
|
February |
78.6 | 70.2 | 61.5 | 0.2 | 0 | 71.3% |
|
March |
79.9 | 72.1 | 64 | 0 | 0 | 67.6% |
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April |
83.1 | 75.4 | 67.8 | 0 | 0 | 67.3% |
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May |
84.9 | 78.4 | 71.6 | 1.5 | 1 | 70.6% |
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June |
86.7 | 81.1 | 75.7 | 5.4 | 20 | 77.4% |
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July |
87.8 | 82.2 | 77.5 | 4.2 | 20 | 77% |
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August |
88.2 | 82.6 | 78.4 | 5.5 | 22 | 77.5% |
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September |
87.1 | 81.1 | 76.8 | 5.5 | 22 | 79.5% |
|
October |
85.1 | 78.6 | 71.8 | 2.2 | 0 | 75.6% |
|
November |
82 | 73.8 | 65.7 | 0.5 | 0 | 71% |
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December |
78.4 | 71.2 | 64.2 | 0.3 | 0 | 73% |
Max. Temperature °C | ø. Temperature °C | Min. Temperature (°C) |
Precip. (mm) |
Rainy Days (d) |
Rel. Humidity (%) |
|
|---|---|---|---|---|---|---|
|
January |
25.2 | 20.1 | 15.7 | 2 | 0 | 70.4% |
|
February |
25.9 | 21.2 | 16.4 | 4.2 | 0 | 71.3% |
|
March |
26.6 | 22.3 | 17.8 | 0 | 0 | 67.6% |
|
April |
28.4 | 24.1 | 19.9 | 1 | 0 | 67.3% |
|
May |
29.4 | 25.8 | 22 | 38.1 | 1 | 70.6% |
|
June |
30.4 | 27.3 | 24.3 | 136.6 | 20 | 77.4% |
|
July |
31 | 27.9 | 25.3 | 105.7 | 20 | 77% |
|
August |
31.2 | 28.1 | 25.8 | 139 | 22 | 77.5% |
|
September |
30.6 | 27.3 | 24.9 | 140.1 | 22 | 79.5% |
|
October |
29.5 | 25.9 | 22.1 | 56.1 | 0 | 75.6% |
|
November |
27.8 | 23.2 | 18.7 | 12.9 | 0 | 71% |
|
December |
25.8 | 21.8 | 17.9 | 8.8 | 0 | 73% |
Best time to Visit Key Largo
With the Key Largo water temperature ranging from 69 degrees in January up to 87 degrees in July and August, it is ideal for swimming throughout the year, and with a wide range of ocean-going activities on offer including scuba-diving, snorkeling, sports fishing and boating, there is plenty to do.
The ocean to the east of Key Largo is a treasure trove of living coral formations, exotically beautiful fish and fascinating shipwrecks just waiting to be explored.
Just remember to check the local weather forecast before venturing out, don’t touch the delicate coral, and don’t feed the fish, otherwise this warm water wonderland is your oyster.
Activities & POI in Key Largo
| Type of Activity | List |
|---|---|
| Beach | North Beach, South Beach |
| Attraction | The Laura Quinn Wild Bird Sanctuary |
| Caravan Site | King's Kamp RV Park, Key Largo Kampground |
Picture Copyright: Flickr CC 2.0 Allie_Caulfield