October weather forecast and climate
Big Coppitt Key, FL

October, like September, in Big Coppitt Key, Florida, is a moderately hot autumn month, with average temperature fluctuating between 79.7°F (26.5°C) and 82°F (27.8°C).

Temperature

In October, the average high-temperature is essentially the same as in September - a still warm 82°F (27.8°C). In October, in Big Coppitt Key, the average low-temperature is 79.7°F (26.5°C).

Heat index

In October, the average heat index is estimated at a tropical 87.6°F (30.9°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'felt air temperature', or 'apparent temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, differences in body mass, height, and shape, wind). 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. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Big Coppitt Key, the average relative humidity in October is 75%.

Rainfall

In Big Coppitt Key, during October, the rain falls for 18 days and regularly aggregates up to 2.95" (75mm) of precipitation. In Big Coppitt Key, during the entire year, the rain falls for 171.1 days and collects up to 21.54" (547mm) of precipitation.

Ocean temperature

In Big Coppitt Key, the average water temperature is 82.9°F (28.3°C).
Note: For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In Big Coppitt Key, the average length of the day is 11.6h.

Sunshine

The average sunshine in October is 7.4h.

UV index

April through October, with an average maximum UV index of 7, are months with the highest UV index in Big Coppitt Key, Florida. A UV Index reading of 6 to 7 represents a high health hazard from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 7 in October interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. 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. 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. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in October in Big Coppitt Key?

The average high-temperature, in October, in Big Coppitt Key, Florida, is 82°F (27.8°C), while the average low-temperature is 79.7°F (26.5°C). In October, the average heat index (a.k.a. 'real feel', 'felt air temperature'), that calculates temperature value influenced by the moisture in the air, is evaluated at 87.6°F (30.9°C).

What is the average humidity in October in Big Coppitt Key?

In October, the average relative humidity is 75%.

How much does it rain in Big Coppitt Key in October?

In Big Coppitt Key, Florida, in October, during 18 rainfall days, 2.95" (75mm) of precipitation is typically accumulated.

How warm is the water in October in Big Coppitt Key?

In Big Coppitt Key, in October, the average water temperature is 82.9°F (28.3°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

How many hours of daylight does Big Coppitt Key have in October?

In October, the average length of the day in Big Coppitt Key, Florida, is 11.6h.

How many hours of sunshine does Big Coppitt Key have in October?

In Big Coppitt Key, Florida, the average sunshine in October is 7.4h.

What is the month with the highest UV index in Big Coppitt Key?

Months with the highest UV index in Big Coppitt Key, Florida, are April through October, with an average maximum UV index of 7.

What is the UV index intensity in October in Big Coppitt Key?

The average daily maximum UV index in October is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in October - Big Coppitt Key, FL
  • Average high temperature in October: 82°F

The warmest month (with the highest average high temperature) is August (85.3°F).
The month with the lowest average high temperature is January (72.7°F).

  • Average low temperature in October: 79.7°F

The month with the highest average low temperature is August (83.1°F).
The coldest month (with the lowest average low temperature) is January (68.5°F).

Average pressure in October - Big Coppitt Key, FL
  • Average pressure in October: 29.93"

The month with the highest atmospheric pressure is January (30.09").
Months with the lowest atmospheric pressure are September and October (29.93").

Average wind speed in October - Big Coppitt Key, FL
  • Average wind speed in October: 13.7mph

The windiest month (with the highest average wind speed) is November (14.4mph).
The calmest month (with the lowest average wind speed) is July (9.4mph).

Average humidity in October - Big Coppitt Key, FL
  • Average humidity in October: 75%

The month with the highest relative humidity is February (78%).
Months with the lowest relative humidity are July, August and September (74%).

Average rainfall in October - Big Coppitt Key, FL
  • Average rainfall in October: 2.95"

The wettest month (with the highest rainfall) is September (3.54").
The driest month (with the least rainfall) is March (0.43").

Average rainfall days in October - Big Coppitt Key, FL
  • Average rainfall days in October: 18 days

The month with the highest number of rainy days is September (20.8 days).
The month with the least rainy days is March (9.4 days).

Average sea temperature in October - Big Coppitt Key, FL
  • Average sea temperature in October: 82.9°F

The best month for swimming (with the highest average sea temperature) is August (86.9°F).
The coldest months (with the lowest average sea temperature) are January and February (71.2°F).

Average daylight in October / Average sunshine in October - Big Coppitt Key, FL
  • Average daylight in October: 11.6h

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

  • Average sunshine in October: 7.4h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is December (Average sunshine: 6.5h).

Average sunshine days in October - Big Coppitt Key, FL
  • Average sunshine days in October: 10.8 days

The month with the most sunshine days is March (19.6 days).
The month with the least sunshine days is September (6.2 days).

Average UV index in October - Big Coppitt Key, FL
  • Average UV index in October: 7

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 in October - Big Coppitt Key, FL
  • Average cloud cover in October: 32

The month with the most cloud cover is January (Cloud cover 34).
The month with the least cloud cover is April (Cloud cover 23).

Average visibility in October - Big Coppitt Key, FL
  • Average visibility in October: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).