October weather forecastKey Biscayne, FL
October
Weather in October
October, like September, in Key Biscayne, Florida, is a moderately hot autumn month, with an average temperature fluctuating between 82.8°F (28.2°C) and 77.5°F (25.3°C).Temperature
Key Biscayne marks the arrival of October with an average high-temperature of a still warm 82.8°F (28.2°C), hardly different from September's 85.6°F (29.8°C). The temperature in Key Biscayne during October experiences a small drop from daytime peaks, recording an average of 77.5°F (25.3°C) at night.Heat index
The heat index in October is estimated at a tropical 89.6°F (32°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.Heat index readings emphasize conditions of light breezes and shaded spots. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', comes about by integrating the temperature readings with the humidity levels. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. 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 ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
In Key Biscayne, Florida, the average relative humidity in October is 74%.Rainfall
In Key Biscayne, Florida, in October, it is raining for 17.3 days, with typically 1.65" (42mm) of accumulated precipitation. Throughout the year, there are 182.7 rainfall days, and 16.38" (416mm) of precipitation is accumulated.Ocean temperature
In October, the average ocean temperature is 82.9°F (28.3°C).Note: Water temperatures in the range of 77°F (25°C) to 84.2°F (29°C) are warm and delightful, ensuring comfort during water activities over extended periods.
Daylight
In October, the average length of the day in Key Biscayne is 11h and 32min.On the first day of the month, sunrise is at 7:13 am and sunset at 7:06 pm. On the last day of October, in Key Biscayne, sunrise is at 7:28 am and sunset at 6:39 pm EDT.
Sunshine
In Key Biscayne, the average sunshine in October is 6.8h.UV index
May through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 7 during October translates into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Heed this! UV intensity is much stronger when reflected off sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Key Biscayne, FL
- Average high temperature in October: 82.8°F
The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is January (73°F).
- Average low temperature in October: 77.5°F
The month with the highest average low temperature is August (82.6°F).
The coldest month (with the lowest average low temperature) is January (65.1°F).
Average pressure in October
Key Biscayne, FL
- Average pressure in October: 29.95"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.95"Hg).
Average wind speed in October
Key Biscayne, FL
- Average wind speed in October: 11.1mph
The windiest month (with the highest average wind speed) is March (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).
Average humidity in October
Key Biscayne, FL
- Average humidity in October: 74%
The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is March (70%).
Average rainfall in October
Key Biscayne, FL
- Average rainfall in October: 1.65"
The wettest month (with the highest rainfall) is August (2.8").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in October
Key Biscayne, FL
- Average rainfall days in October: 17.3 days
The month with the highest number of rainy days is September (24.5 days).
The month with the least rainy days is February (8.7 days).
Average sea temperature in October
Key Biscayne, FL
- Average sea temperature in October: 82.9°F
The best month for swimming (with the highest average sea temperature) is August (86.5°F).
The coldest month (with the lowest average sea temperature) is February (74°F).
Average daylight in October /
Average sunshine in October
Key Biscayne, FL
- Average daylight in October: 11h and 30min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in October: 6h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in October
Key Biscayne, FL
- Average sunshine days in October: 9 days
The month with the most sunshine days is March (17 days).
The month with the least sunshine days is September (3.2 days).
Average UV index in October
Key Biscayne, FL
- Average UV index in October: 7
The months with the highest UV index are May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January and December (UV index 5).
Average cloud cover in October
Key Biscayne, FL
- Average cloud cover in October: 35
The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 26).
Average visibility in October
Key Biscayne, FL
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
