August weather in Grand Isle, LA
The average temperature in Grand Isle in August is °F (°F–°F). Average precipitation: 7.50 inches.
August is a summer month in Grand Isle, and is cooler than the annual average of 0°F. Expect about 9 days with precipitation. Daylight averages about 13h 3m.
Avg High
°F
Avg Low
°F
Precipitation
7.50 in
Daylight
13h 3m
August records in Grand Isle
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 98.1°F (1958) | 72.0°F (1950) | 1.85 in (1997) |
| August 2 | 97.0°F (1958) | 71.1°F (1949) | 4.50 in (1955) |
| August 3 | 93.9°F (1950) | 71.1°F (1949) | 1.46 in (2008) |
| August 4 | 96.1°F (1958) | 71.1°F (1960) | 0.91 in (1960) |
| August 5 | 96.1°F (1951) | 73.0°F (1961) | 2.00 in (2012) |
| August 6 | 96.1°F (1964) | 72.0°F (1949) | 2.90 in (1987) |
| August 7 | 96.1°F (1951) | 72.0°F (1949) | 1.95 in (1952) |
| August 8 | 96.1°F (1966) | 72.0°F (1949) | 2.31 in (1993) |
| August 9 | 97.0°F (1956) | 70.0°F (1958) | 2.50 in (1957) |
| August 10 | 96.1°F (1956) | 70.0°F (1960) | 3.41 in (1948) |
| August 11 | 97.0°F (1956) | 71.1°F (1955) | 1.98 in (2007) |
| August 12 | 96.1°F (1951) | 69.1°F (1955) | 8.50 in (1949) |
| August 13 | 96.1°F (1951) | 70.0°F (1949) | 1.99 in (2001) |
| August 14 | 96.1°F (1951) | 70.0°F (1949) | 1.97 in (1947) |
| August 15 | 97.0°F (1951) | 66.9°F (1962) | 1.80 in (1959) |
| August 16 | 97.0°F (1950) | 69.1°F (1967) | 2.50 in (1948) |
| August 17 | 96.1°F (1951) | 71.1°F (1963) | 3.22 in (2015) |
| August 18 | 96.1°F (2011) | 71.1°F (1967) | 2.00 in (1957) |
| August 19 | 100.0°F (1949) | 72.0°F (1953) | 0.92 in (1959) |
| August 20 | 95.0°F (1951) | 70.0°F (1961) | 2.43 in (1952) |
| August 21 | 96.1°F (1951) | 66.9°F (1949) | 3.60 in (1990) |
| August 22 | 100.0°F (1949) | 66.9°F (1949) | 0.68 in (1960) |
| August 23 | 97.0°F (1955) | 66.9°F (1949) | 2.25 in (1954) |
| August 24 | 95.0°F (1951) | 68.0°F (1949) | 3.00 in (1958) |
| August 25 | 96.1°F (2011) | 68.0°F (1949) | 2.00 in (1958) |
| August 26 | 97.0°F (1963) | 69.1°F (1949) | 2.00 in (1953) |
| August 27 | 96.1°F (1963) | 69.1°F (1949) | 2.60 in (1991) |
| August 28 | 96.1°F (1949) | 68.0°F (1949) | 1.50 in (1991) |
| August 29 | 97.0°F (1951) | 68.0°F (1949) | 3.58 in (2007) |
| August 30 | 100.9°F (1954) | 69.1°F (1961) | 3.90 in (2010) |
| August 31 | 98.1°F (1949) | 72.0°F (1953) | 2.30 in (1986) |