Best time to go to Grand Isle Average weather of Grand Isle, Louisiana

When is the best time to go to Grand Isle?

When is the best time to go to Grand Isle? Here's some information to help you in your decision:

The best months for good weather in Grand Isle are January, February, March, April, May, June, September, October, November and December
On average, the warmest months are June, July, August and September
January is the coldest month of the year
August is the rainiest month
The best months for swimming are June, July, August and September

Annual weather in Grand Isle

For full information about the climate and weather in Grand Isle a specific month, click on the corresponding line below:

Month			Our opinion
January	56°F/63°F	3.1in	good weather	Grand Isle in january
February	59°F/67°F	2.9in	good weather	Grand Isle in february
March	65°F/70°F	3in	perfect weather	Grand Isle in march
April	68°F/76°F	2.6in	perfect weather	Grand Isle in april
May	76°F/81°F	3.4in	good weather	Grand Isle in may
June	81°F/86°F	6.6in	good weather	Grand Isle in june
July	83°F/88°F	8in	tolerable weather	Grand Isle in july
August	83°F/88°F	11.3in	tolerable weather	Grand Isle in august
September	81°F/86°F	7in	good weather	Grand Isle in september
October	74°F/79°F	2.9in	good weather	Grand Isle in october
November	65°F/72°F	2.5in	perfect weather	Grand Isle in november
December	59°F/67°F	3.5in	good weather	Grand Isle in december

Weather and climate in Grand Isle

Grand Isle enjoys a humid subtropical climate (without dry season and with hot summer) in accordance with the Köppen-Geiger classification. The yearly average maximum temperature in Grand Isle is 77°F (ranging from 63°F in january to 88°F in august). Annual rainfall is 56.5in, with a minimum of 2.5in in november and a maximum of 11.3in in august.

Between the months of january and september the climate is good. In average, on the morning it is 81°F and it rains about 35% of the time in september.
In october the climate is perfect. The record temperature this month is 88°F and you can expect to have 2.9in of rainfall/month during this period.
From november to december the climate is good. It is for example 67°F as maximum temperature in december.

Charts: temperature and rainfall in Grand Isle

In the charts below, you can see the following seasonal norms for the city of Grand Isle: the minimum and maximum outdoor temperature, the risk and amount of monthly rainfall, daily average sunshine, sea temperature, and relative humidity for each month of the year.

Outside temperature

Precipitation (rainfall)

Daily sunshine hours

Sea temperature

Humidity

Peak visitor numbers and tourist seasons in Grand Isle

Find out when Grand Isle has its high tourist season (the period when the influx of tourists is highest) and off-peak tourist season using our data and figures.

Tourist seasons in Grand Isle

Very low season in Grand Isle
The months with the lowest number of tourists are: January and February.
Low season in Grand Isle
The months with low numbers of tourists are: August, September and December.
High season in Grand Isle
The number of visitors to Grand Isle is high in: March, April, May and November.
Peak season in Grand Isle
The largest number of tourists visiting Grand Isle is during: June, July and October.

Figure: Visitor index for Grand Isle month by month

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Best time for low prices in Grand Isle

Average prices of hotels in Grand Isle month by month

Generally, February is the month with the lowest hotel prices in Grand Isle. So this is a great time to save on your holiday! In contrast, December is statistically the most expensive month of the year for hotels.