Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall days in October
- Average sea temperature in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
In October, the average high-temperature in Grand Isle marginally decreases from a moderately hot 84.6°F (29.2°C) in September to a still warm 78.3°F (25.7°C). Nighttime temperatures in Grand Isle, Louisiana, hover around an average low of 71.2°F (21.8°C) in October, a slight descent from daytime highs.Humidity
October is the least humid month in Grand Isle, with an average relative humidity of 71%.Rainfall
In Grand Isle, Louisiana, in October, it is raining for 10.1 days, with typically 1.34" (34mm) of accumulated precipitation. In Grand Isle, during the entire year, the rain falls for 151.9 days and collects up to 22.01" (559mm) of precipitation.Snowfall
In Grand Isle, Louisiana, snow does not fall in February through December.Ocean temperature
In Grand Isle, in October, the average water temperature is 78.3°F (25.7°C).Note: 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.
Daylight
In October, the average length of the day in Grand Isle is 11h and 27min.On the first day of the month, sunrise is at 6:53 am and sunset at 6:45 pm. On the last day of October, sunrise is at 7:12 am and sunset at 6:14 pm CDT.
Sunshine
In October, the average sunshine in Grand Isle is 7.5h.UV index
The average daily maximum UV index in October is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 6 in October converts into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.
Frequently asked questions
What are October temperatures in Grand Isle?
What is the least humid month in Grand Isle?
What is the average humidity in October in Grand Isle?
How much does it rain in Grand Isle in October?
When it does not snow in Grand Isle?
What is the water temperature in October in Grand Isle?
How many hours of daylight does Grand Isle have in October?
When are sunrise and sunset in October in Grand Isle?
How many hours of sunshine does Grand Isle have in October?
How high is the UV index in October in Grand Isle?
Average temperature in October
Grand Isle, LA
- Average high temperature in October: 78.3°F
The warmest months (with the highest average high temperature) are July and August (86.9°F).
The month with the lowest average high temperature is January (61.7°F).
- Average low temperature in October: 71.2°F
The month with the highest average low temperature is August (81.3°F).
The coldest month (with the lowest average low temperature) is January (53.1°F).
Average pressure in October
Grand Isle, LA
- Average pressure in October: 30.01"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in October
Grand Isle, LA
- Average wind speed in October: 11mph
The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in October
Grand Isle, LA
- Average humidity in October: 71%
The months with the highest relative humidity are February and December (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in October
Grand Isle, LA
- Average rainfall in October: 1.34"
The wettest month (with the highest rainfall) is August (4.72").
The driest months (with the least rainfall) are February and April (0.87").
Average rainfall days in October
Grand Isle, LA
- Average rainfall days in October: 10.1 days
The month with the highest number of rainy days is August (20.7 days).
The month with the least rainy days is November (7.5 days).
Average snowfall days in October
Grand Isle, LA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in October
Grand Isle, LA
- Average sea temperature in October: 78.3°F
The best month for swimming (with the highest average sea temperature) is August (87.5°F).
The coldest month (with the lowest average sea temperature) is January (61.4°F).
Average daylight in October /
Average sunshine in October
Grand Isle, LA
- Average daylight in October: 11h and 3min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in October: 7h and 3min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in October
Grand Isle, LA
- Average sunshine days in October: 17.7 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is August (6.5 days).
Average UV index in October
Grand Isle, LA
- Average UV index in October: 6
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in October
Grand Isle, LA
- Average cloud cover in October: 24
The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is May (Cloud cover 23).
Average visibility in October
Grand Isle, LA
- 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).
Grand Isle, Louisiana, USA
Weather forecast for your location
2. Allow the app to use your location
