October weather forecastKey West, FL
October
Weather in October
October brings a refreshing change to the monotonous hot and humid regimen in Key West. This month is a transition period from the scorching summer to cooler autumn temperatures. Albeit marginally, the arrival of October sees a drop in both temperatures and rainfall. Known as the beginning of the "dry season", the fresher cleaner air provides a breath of freshness to the city. The month marks a notable escalation in wind speed, reaching a high of 13.7mph (22km/h), providing a noticeable contrast to the prior calm conditions.Temperature
With the onset of October, the average high-temperature in Key West stands at a still moderately hot 82°F (27.8°C), closely aligned with September's 84.4°F (29.1°C). Nighttime temperature in Key West sees a small decrement from daytime highs, dipping to an average of 79.7°F (26.5°C) during October.Heat index
October's heat index is computed to be a tropical 87.8°F (31°C). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Humidity
The average relative humidity in October is 75%.Rainfall
In Key West, in October, it is raining for 20.1 days, with typically 4.21" (107mm) of accumulated precipitation. In Key West, during the entire year, the rain falls for 199.2 days and collects up to 31.61" (803mm) of precipitation.Ocean temperature
In Key West, the average seawater temperature in October is 82.9°F (28.3°C).Note: Swimming, diving, and other water activities in temperatures ranging from 77°F (25°C) to 84.2°F (29°C) are highly enjoyable and provide prolonged comfort without unease.
Daylight
The average length of the day in October is 11h and 34min.On the first day of the month, sunrise is at 7:19 am and sunset at 7:13 pm. On the last day of October, sunrise is at 7:33 am and sunset at 6:47 pm EDT.
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. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: During October, 7 as the daily maximum UV index converts into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Key West, 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 (82.9°F).
The coldest month (with the lowest average low temperature) is January (68.5°F).
Average pressure in October
Key West, FL
- Average pressure in October: 29.93"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are September and October (29.93"Hg).
Average wind speed in October
Key West, FL
- Average wind speed in October: 13.7mph
The windiest months (with the highest average wind speed) are January and November (14.4mph).
The calmest month (with the lowest average wind speed) is July (9.5mph).
Average humidity in October
Key West, FL
- Average humidity in October: 75%
The month with the highest relative humidity is February (78%).
The months with the lowest relative humidity are July, August and September (74%).
Average rainfall in October
Key West, FL
- Average rainfall in October: 4.21"
The wettest month (with the highest rainfall) is September (5.12").
The driest month (with the least rainfall) is March (0.67").
Average rainfall days in October
Key West, FL
- Average rainfall days in October: 20.1 days
The months with the highest number of rainy days are August and September (23.1 days).
The month with the least rainy days is February (11 days).
Average sea temperature in October
Key West, 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
Key West, FL
- Average daylight in October: 11h and 36min
The month with the longest days is June (Average daylight: 13h and 36min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in October: 7h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in October
Key West, FL
- Average sunshine days in October: 7.2 days
The month with the most sunshine days is March (17 days).
The month with the least sunshine days is September (4.5 days).
Average UV index in October
Key West, FL
- Average UV index in October: 7
The 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
Key West, FL
- Average cloud cover in October: 33
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
Key West, 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).
