August weather forecast
Fort Myers Beach, FL

Weather in August

The last month of the summer, August, is another tropical month in Fort Myers Beach, Florida, with average temperature varying between 88°F (31.1°C) and 81.1°F (27.3°C).

Temperature

The warmest month is August, with an average high-temperature of 88°F (31.1°C) and an average low-temperature of 81.1°F (27.3°C).

Heat index

In August, the average heat index is computed to be a sweltering 101.8°F (38.8°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'real feel', or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like metabolic differences, pregnancy, wind, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

March, May, July, August and October, with an average relative humidity of 73%, are the least humid months.

Rainfall

The month with the most rainfall is August when the rain falls for 27.3 days and typically aggregates up to 8.54" (217mm) of precipitation.

Ocean temperature

The month with the warmest seawater in Fort Myers Beach is August, with an average ocean temperature of 87.3°F (30.7°C).
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

The average length of the day in August is 13h.

Sunshine

In August, the average sunshine is 9.6h.

UV index

Months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV rays for the ordinary person.
Note: In August, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What is the warmest month in Fort Myers Beach?

August is the warmest month in Fort Myers Beach, with an average high-temperature of 88°F (31.1°C) and an average low-temperature of 81.1°F (27.3°C).

What is the temperature in August in Fort Myers Beach?

The average high-temperature, in August, is 88°F (31.1°C), while the average low-temperature is 81.1°F (27.3°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in August is computed to be 101.8°F (38.8°C).

What is the least humid month in Fort Myers Beach?

Months with the lowest humidity are March, May, July, August and October, with an average relative humidity of 73%.

What is the average humidity in August in Fort Myers Beach?

The average relative humidity in August in Fort Myers Beach, Florida, is 73%.

What is the wettest month in Fort Myers Beach?

August is the month with the most rainfall in Fort Myers Beach. Rain falls for 27.3 days and accumulates 8.54" (217mm) of precipitation.

How much does it rain in Fort Myers Beach in August?

In Fort Myers Beach, in August, it is raining for 27.3 days, with typically 8.54" (217mm) of accumulated precipitation.

When is the ocean warmest in Fort Myers Beach?

With an average ocean temperature of 87.3°F (30.7°C), August is the month with the warmest seawater in Fort Myers Beach.

How warm is the water in August in Fort Myers Beach?

In August, the average ocean temperature in Fort Myers Beach is 87.3°F (30.7°C). For swimming, other intense water activities, temperature above 86°F (30°C) is arguably unpleasant, as the water cooling effect is missing.

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

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

How many hours of sunshine does Fort Myers Beach have in August?

In Fort Myers Beach, Florida, the average sunshine in August is 9.6h.

What is the month with the highest UV index in Fort Myers Beach?

May through September, with an average maximum UV index of 7, are months with the highest UV index in Fort Myers Beach, Florida.

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

The average daily maximum UV index in August is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from the exposure to the Sun's UV radiation.

Average temperature in August
Fort Myers Beach, FL

Average temperature in August - Fort Myers Beach, FL
  • Average high temperature in August: 31.1°C

The warmest month (with the highest average high temperature) is August (31.1°C).
The month with the lowest average high temperature is January (21°C).

  • Average low temperature in August: 27.3°C

The month with the highest average low temperature is August (27.3°C).
The coldest month (with the lowest average low temperature) is January (15.3°C).

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Average pressure in August
Fort Myers Beach, FL

Average pressure in August - Fort Myers Beach, FL
  • Average pressure in August: 1015.1mbar

The month with the highest atmospheric pressure is January (1019.8mbar).
The month with the lowest atmospheric pressure is September (1014.1mbar).

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Average wind speed in August
Fort Myers Beach, FL

Average wind speed in August - Fort Myers Beach, FL
  • Average wind speed in August: 11.7km/h

The windiest month (with the highest average wind speed) is November (16.3km/h).
The calmest month (with the lowest average wind speed) is July (11.1km/h).

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Average humidity in August
Fort Myers Beach, FL

Average humidity in August - Fort Myers Beach, FL
  • Average humidity in August: 73%

The month with the highest relative humidity is December (77%).
Months with the lowest relative humidity are March, May, July, August and October (73%).

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Average rainfall in August
Fort Myers Beach, FL

Average rainfall in August - Fort Myers Beach, FL
  • Average rainfall in August: 217mm

The wettest month (with the highest rainfall) is August (217mm).
The driest month (with the least rainfall) is February (27mm).

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Average rainfall days in August
Fort Myers Beach, FL

Average rainfall days in August - Fort Myers Beach, FL
  • Average rainfall days in August: 27.3 days

The month with the highest number of rainy days is August (27.3 days).
The month with the least rainy days is February (8.2 days).

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Average sea temperature in August
Fort Myers Beach, FL

Average sea temperature in August - Fort Myers Beach, FL
  • Average sea temperature in August: 30.7°C

The best month for swimming (with the highest average sea temperature) is August (30.7°C).
The coldest months (with the lowest average sea temperature) are January and February (19.3°C).

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Average daylight in August /
Average sunshine in August
Fort Myers Beach, FL

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

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

  • Average sunshine in August: 9.6h

The month with the most sunshine is May (Average sunshine: 11h).
The month with the least sunshine is December (Average sunshine: 6.6h).

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Average sunshine days in August
Fort Myers Beach, FL

Average sunshine days in August - Fort Myers Beach, FL
  • Average sunshine days in August: 2.3 days

The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is August (2.3 days).

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Average UV index in August
Fort Myers Beach, FL

Average UV index in August - Fort Myers Beach, FL
  • Average UV index in August: 7

Months with the highest UV index are May, June, July, August and September (UV index 7).
Months with the lowest UV index are January and February (UV index 5).

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Average cloud cover in August
Fort Myers Beach, FL

Average cloud cover in August - Fort Myers Beach, FL
  • Average cloud cover in August: 28

The month with the most cloud cover is January (Cloud cover 29).
Months with the least cloud cover are March and May (Cloud cover 23).

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Average visibility in August
Fort Myers Beach, FL

Average visibility in August - Fort Myers Beach, FL
  • Average visibility in August: 9km

Months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (10km).
The month with the lowest visibility is August (9km).

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