Fort Myers
Florida, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Fort Myers, FL

Dusk over the pier bridge in Fort Myers, Florida, with cloudy skies and calm waters below
Dusk over the pier bridge in Fort Myers, Florida, with cloudy skies and calm waters below
The last month of the summer, August, is another tropical month in Fort Myers, Florida, with temperature in the range of an average high of 91.8°F (33.2°C) and an average low of 74.8°F (23.8°C).

Temperature

In Fort Myers, Florida, the average high-temperature is almost the same as in July - a still tropical 91.8°F (33.2°C). In August, the average low-temperature is 74.8°F (23.8°C).

Rainfall

In Fort Myers, during 17.9 rainfall days, 9.1" (230mm) of precipitation is typically accumulated. Throughout the year, in Fort Myers, there are 110.5 rainfall days, and 53.4" (1357mm) of precipitation is accumulated.

Ocean temperature

The month with the warmest seawater in Fort Myers, Florida, is August, with an average ocean temperature of 86°F (30°C).
Note: For swimming, other intense water activities, temperature above 86°F (30°C) is arguably unpleasant, as the water cooling effect is missing.

Daylight

In August, the average length of the day in Fort Myers is 13h.

Sunshine

In Fort Myers, the average sunshine is 9h.

UV index

April through August, with an average maximum UV index of 11, are months with the highest UV index in Fort Myers. A UV Index estimate of 11, and higher, represents an excessive health risk from the exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 11 interpret into the following advice:
Practice all essential precautions. Protection against sun damage is crucial. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in August in Fort Myers?

In August, the average high-temperature is 91.8°F (33.2°C), and the average low-temperature is 74.8°F (23.8°C).

How much does it rain in Fort Myers in August?

In Fort Myers, Florida, during August, the rain falls for 17.9 days and regularly aggregates up to 9.1" (230mm) of precipitation.

What month is the ocean warmest in Fort Myers?

August is the month with the warmest seawater in Fort Myers, Florida, with an average ocean temperature of 86°F (30°C).

What is the ocean temperature in August in Fort Myers?

In Fort Myers, the average seawater temperature in August is 86°F (30°C). The water temperature above 86°F (30°C) is arguably regarded as unpleasant. The primary purpose of entering the water - cooling down from sunshine and high temperatures - is lost.

What is the average length of the day in August in Fort Myers?

In August, the average length of the day in Fort Myers is 13h.

How long on average sun shines in August in Fort Myers?

In Fort Myers, the average sunshine in August is 9h.

When is the highest UV index in Fort Myers?

Months with the highest UV index in Fort Myers, Florida, are April through August, with an average maximum UV index of 11.

What is the UV index reading in August in Fort Myers?

The average daily maximum UV index in August is 11. A UV Index reading of 11, and higher, represents an extreme health threat from the exposure to the Sun's UV rays.
Average temperature in August - Fort Myers, FL
  • Average high temperature in August: 91.8°F

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (74.7°F).

  • Average low temperature in August: 74.9°F

The month with the highest average low temperature is August (74.9°F).
The coldest month (with the lowest average low temperature) is January (53.7°F).

Average rainfall in August - Fort Myers, FL
  • Average rainfall in August: 9.1"

The wettest month (with the highest rainfall) is June (9.3").
The driest month (with the lowest rainfall) is April (1.4").

Average rainfall days in August - Fort Myers, FL
  • Average rainfall days in August: 17.9 days

The month with the highest number of rainy days is August (17.9 days).
The month with the lowest number of rainy days is April (4.2 days).

Average sea temperature in August - Fort Myers, FL
  • Average sea temperature in August: 86°F

The best month for swimming (with the highest average sea temperature) is August (86°F).
The coldest month (with the lowest average sea temperature) is February (70°F).

Average daylight in August / Average sunshine in August - Fort Myers, FL
  • Average daylight in August: 13h

The month with the longest days is June (Average daylight: 13.8h).
The month with shortest days is December (Average daylight: 10.5h).

  • Average sunshine in August: 9h

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

Average UV index in August - Fort Myers, FL
  • Average UV index in August: 11

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