Key Largo
Florida, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Key Largo, FL

A bright seascape and cloudy evening sky in Key Largo, Florida
A bright seascape and cloudy evening sky in Key Largo, Florida
The last month of the summer, Agosto, is another tropical month in Key Largo, Florida, with average temperature ranging between min 73.4°F (23°C) and max 89.6°F (32°C).

Temperature

Julio through Septiembre, with an average high-temperature of 89.6°F (32°C), are the warmest months.

Rainfall

In Agosto, in Key Largo, the rain falls for 17 days. Throughout Agosto, 6.54" (166mm) of precipitation is accumulated. Throughout the year, there are 126 rainfall days, and 56.65" (1439mm) of precipitation is accumulated.

Ocean temperature

With an average ocean temperature of 86.7°F (30.4°C), Agosto is the month with the warmest seawater in Key Largo.
Note: The surface water temperatures above 86°F (30°C) are arguably considered as unpleasant for swimming, and any intense water activity, as the refreshing effect of water is missing.

Daylight

In Agosto, the average length of the day in Key Largo is 13h.

Sunshine

In Key Largo, the average sunshine is 9h.

UV index

Abril through Agosto, with an average maximum UV index of 11, are months with the highest UV index in Key Largo. A UV Index reading of 11, and higher, represents an extreme threat to health from unprotected exposure to the Sun's UV rays for the average person.
Note: In Agosto, the average maximum UV index of 11 translate into the following recommendations:
Take all necessary precautions, as unprotected skin can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What are the warmest months in Key Largo?

Warmest months are Julio through Septiembre, with an average high-temperature of 89.6°F (32°C).

What is the temperature in Agosto in Key Largo?

The average high-temperature, in Agosto, is 89.6°F (32°C), while the average low-temperature is 73.4°F (23°C).

How much does it rain in Key Largo in Agosto?

In Key Largo, Florida, in Agosto, during 17 rainfall days, 6.54" (166mm) of precipitation is typically accumulated.

What month is the ocean warmest in Key Largo?

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

How warm is the water in Agosto in Key Largo?

In Agosto, the average ocean temperature in Key Largo, Florida, is 86.7°F (30.4°C). For swimming, other intense water activities, temperature above 86°F (30°C) is arguably unpleasant, as the water cooling effect is missing.

How many hours of daylight does Key Largo have in Agosto?

In Agosto, the average length of the day is 13h.

How many hours of sunshine does Key Largo have in Agosto?

In Key Largo, Florida, the average sunshine in Agosto is 9h.

When is the highest UV index in Key Largo?

Months with the highest UV index in Key Largo are Abril through Agosto, with an average maximum UV index of 11.

What is the UV index intensity in Agosto in Key Largo?

In Key Largo, the average daily maximum UV index in Agosto is 11. A UV Index estimate of 11, and higher, represents an excessive health risk from unsafe exposure to the Sun's UV rays.
Average temperature in August - Key Largo, FL
  • Average high temperature in August: 90°F

Warmest months (with the highest average high temperature) are July, August and September (90°F).
The month with the lowest average high temperature is January (75°F).

  • Average low temperature in August: 73°F

Months with the highest average low temperature are July, August and September (73°F).
Coldest months (with the lowest average low temperature) are January and February (57°F).

Average rainfall in August - Key Largo, FL
  • Average rainfall in August: 6.5"

The wettest month (with the highest rainfall) is June (10").
The driest month (with the lowest rainfall) is December (1.4").

Average rainfall days in August - Key Largo, FL
  • Average rainfall days in August: 17 days

Months with the highest number of rainy days are August and September (17 days).
The month with the lowest number of rainy days is April (5 days).

Average sea temperature in August - Key Largo, FL
  • Average sea temperature in August: 86.8°F

The best month for swimming (with the highest average sea temperature) is August (86.8°F).
The coldest month (with the lowest average sea temperature) is February (72.6°F).

Average daylight in August / Average sunshine in August - Key Largo, FL
  • Average daylight in August: 13h

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

  • Average sunshine in August: 9h

Months with most sunshine are April, May, June and July (Average sunshine: 10h).
Months with least sunshine are January, November and December (Average sunshine: 7).

Average UV index in August - Key Largo, FL
  • Average UV index in August: 11

Months with the highest UV index are April, May, June, July and August (UV index 11).
The month with the lowest UV index is December (UV index 5).