October weather forecast
Islamorada, FL

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Weather in October

October, like September, in Islamorada, Florida, is a moderately hot autumn month, with an average temperature fluctuating between 82.2°F (27.9°C) and 78.8°F (26°C).

Temperature

October's commencement is accompanied by an average high-temperature of a still warm 82.2°F (27.9°C), diverging marginally from September's 84.6°F (29.2°C). Islamorada encounters a negligible difference from daytime peaks throughout the October nights, with a low-temperature average of 78.8°F (26°C).

Heat index

The heat index for October is calculated to be a tropical 87.8°F (31°C). Prolonged activity during exposure might result in a state of fatigue and cause heat cramps.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.

Humidity

In Islamorada, the average relative humidity in October is 75%.

Rainfall

In October, the rain falls for 18.2 days. Throughout October, 3.19" (81mm) of precipitation is accumulated. Throughout the year, there are 190.1 rainfall days, and 27.05" (687mm) of precipitation is accumulated.

Ocean temperature

In Islamorada, the average seawater temperature in October is 82.9°F (28.3°C).
Note: For swimming, diving, and various water activities, the temperatures ranging from 77°F (25°C) to 84.2°F (29°C) are seen as highly enjoyable and comfortable for extended durations without any discomfort.

Daylight

In Islamorada, the average length of the day in October is 11h and 34min.
On the first day of the month, sunrise is at 7:14 am and sunset at 7:09 pm. On the last day of October, sunrise is at 7:29 am and sunset at 6:42 pm EDT.

Sunshine

The average sunshine in October is 6.9h.

UV index

April 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 vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In October, a daily maximum UV index of 7 leads to the following instructions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Watch out! Reflections from sand and water can surge UV radiation exposure.
Updated: Jun 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average October temperature in Islamorada?

The high-temperature, in October, in Islamorada, records 82.2°F (27.9°C), while the low-temperature is 78.8°F (26°C). In October, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is calculated to be 87.8°F (31°C).

What is the average humidity in October?

In Islamorada, the average relative humidity in October is 75%.

How many days does it rain in October?

In October, the rain falls for 18.2 days. Throughout October, 3.19" (81mm) of precipitation is accumulated.

What is the water temperature in October in Islamorada?

In Islamorada, the average seawater temperature in October is 82.9°F (28.3°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in October?

In Islamorada, the average day length in October is 11h and 34min.

When is the sunrise / sunset in October?

On the first day of October, sunrise is at 7:14 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 6:42 pm EDT.

How long on average sun shines in October?

In Islamorada, the average sunshine duration in October is 6.9h.

What is the month with the highest UV index?

The months with the highest UV index are April through October, with an average maximum UV index of 7.

What is the UV index intensity in October?

In October, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.

Average temperature in October
Islamorada, FL

Average temperature in October - Islamorada, FL
  • Average high temperature in October: 82.2°F

The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is January (72.7°F).

  • Average low temperature in October: 78.8°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 (66.9°F).

Average pressure in October
Islamorada, FL

Average pressure in October - Islamorada, FL
  • Average pressure in October: 29.94"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are September and October (29.94"Hg).

Average wind speed in October
Islamorada, FL

Average wind speed in October - Islamorada, FL
  • Average wind speed in October: 12.5mph

The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).

Average humidity in October
Islamorada, FL

Average humidity in October - Islamorada, FL
  • Average humidity in October: 75%

The months with the highest relative humidity are February, June and December (76%).
The month with the lowest relative humidity is March (73%).

Average rainfall in October
Islamorada, FL

Average rainfall in October - Islamorada, FL
  • Average rainfall in October: 3.19"

The wettest month (with the highest rainfall) is August (4.33").
The driest month (with the least rainfall) is March (0.59").

Average rainfall days in October
Islamorada, FL

Average rainfall days in October - Islamorada, FL
  • Average rainfall days in October: 18.2 days

The month with the highest number of rainy days is September (22.9 days).
The month with the least rainy days is February (9.7 days).

Average sea temperature in October
Islamorada, FL

Average sea temperature in October - Islamorada, FL
  • Average sea temperature in October: 82.9°F

The best month for swimming (with the highest average sea temperature) is August (86.6°F).
The coldest months (with the lowest average sea temperature) are January and February (73.9°F).

Average daylight in October /
Average sunshine in October
Islamorada, FL

Average daylight in October / Average sunshine in October - Islamorada, FL
  • Average daylight in October: 11h and 4min

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 5min

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 24min).

Average sunshine days in October
Islamorada, FL

Average sunshine days in October - Islamorada, FL
  • Average sunshine days in October: 9.1 days

The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is September (5.2 days).

Average UV index in October
Islamorada, FL

Average UV index in October - Islamorada, 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
Islamorada, FL

Average cloud cover in October - Islamorada, 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
Islamorada, FL

Average visibility in October - Islamorada, 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).

Islamorada, Florida, USA

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