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:

January 56°F/63°F
3.1in
February 59°F/67°F
2.9in
March 65°F/70°F
3in
April 68°F/76°F
2.6in
May 76°F/81°F
3.4in
June 81°F/86°F
6.6in
July 83°F/88°F
8in
August 83°F/88°F
11.3in
September 81°F/86°F
7in
October 74°F/79°F
2.9in
November 65°F/72°F
2.5in
December 59°F/67°F
3.5in


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.

Grand Isle :



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

Figure: Visitor index for Grand Isle month by month



Best time for low prices in Grand Isle

Average prices of hotels in Grand Isle month by month

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

Find the best price for your hotel room


Other cities and places near Grand Isle

Chargement en cours
Legend: Grand Isle other locations


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