Grand Isle Weather: October
 |
Average Day Temperature: | 78.6°F |
|
Average Night Temperature: | 75.8°F |
|
Sea Water Temperature: | 81.5°F |
|
Number of Sunny Days: | 18 days |
| Sunshine Hours: | 11.0 - 11.9 hours | |
|
Number of Rainy Days: | 1 day |
| Precipitation Totals: | 0.8 in | |
| detailed information | ||
forecast
| Grand Isle |
Temperature
| Grand Isle |
Air Temperature in October, °F
The highest day temperature in October 2025 was 85°F. The lowest night temperature was 58°F. The average values for day and night temperatures during October were 79.3°F и 78.2°F respectivly.
Grand Isle Water Sea Temperature in October, °F
The average sea surface temperature in October 2025 for Grand Isle was 83.5°F. The maximum and minimum values were 79.4°F and 88.6°F respectively.
Most of the days in October are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in October, in
Precipitation total in October for Grand Isle is 0.8 in. It makes october one of the least rainy months of the year.
The average wind speed in October is 11.9 mph.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Grand Isle in October is 8.0 hours.
Grand Isle on the Weather Map
| Chicago |  |
-2 |
| Hawaii | |
+78 |
| Honolulu | |
+78 |
| Houston | |
+44 |
| Las Vegas |  |
+40 |
| Los Angeles | |
+52 |
| Maui | |
+72 |
| Miami | |
+72 |
| Miami Beach |  |
+80 |
| New York | |
+18 |
| San Diego | |
+54 |
| San Francisco | |
+46 |
| Sarasota | |
+62 |
| Tampa | |
+62 |
| Washington | |
+28 |
| 0300 |  |
60°F | S 14 mph |
| 0600 | |
58°F | S 12 mph |
| 0900 | |
54°F | S 14 mph |
| 1200 | |
54°F | S 10 mph |
| 1500 |  |
58°F | S 12 mph |
| 1800 |  |
60°F | SW 12 mph |
| 2100 | |
58°F | SW 11 mph |
| 0000 | |
60°F | SW 9 mph |