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
Transitioning from September to October involves a subtle drop in average high-temperatures, descending from a warm 84.6°F (29.2°C) to a still moderately hot 78.3°F (25.7°C). The temperature during October experiences a small drop from daytime peaks, recording an average of 71.2°F (21.8°C) at night.Humidity
With an average relative humidity of 71%, October is the least humid month.Rainfall
In October, the rain falls for 10.1 days. Throughout October, 1.34" (34mm) of precipitation is accumulated. In Grand Isle, during the entire year, the rain falls for 151.9 days and collects up to 22.01" (559mm) of precipitation.Snowfall
February through December are months without snowfall.Ocean temperature
In Grand Isle, Louisiana, in October, the average water temperature is 78.3°F (25.7°C).Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are regarded as highly pleasant, making all water activities enjoyable without any discomfort over long durations.
Daylight
In Grand Isle, the average length of the day in October is 11h and 27min.On the first day of October, sunrise is at 6:53 am and sunset at 6:45 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:14 pm CDT.
Sunshine
The average sunshine in October is 7.5h.UV index
In October, the average daily maximum UV index is 6. A UV Index estimate 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 6 leads to the following instructions:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Warning! The Sun's UV rays intensify with reflections from sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Grand Isle in October?
What is the least humid month?
What is the average humidity in October?
How much does it rain in October?
When it does not snow?
What is the water temperature in October?
How many hours of daylight does Grand Isle have in October?
When are sunrise and sunset in October?
How long on average sun shines 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
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