August weather in Oakville, WA
The average temperature in Oakville in August is 65.5°F (51.6°F–79.5°F). Average precipitation: 1.43 inches.
August is a summer month in Oakville, and is warmer than the annual average of 52.3°F. Daily temperatures swing about 27.9°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 14h 1m. For travel, August is one of the best months of the year to visit.
Avg High
79.5°F
Avg Low
51.6°F
Precipitation
1.43 in
Daylight
14h 1m
August records in Oakville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 98.1°F (1965) | 42.1°F (1957) | 0.58 in (1964) |
| August 2 | 97.0°F (2017) | 41.0°F (1969) | 0.64 in (1996) |
| August 3 | 100.0°F (2017) | 39.9°F (1969) | 1.42 in (1962) |
| August 4 | 100.0°F (2017) | 39.9°F (1982) | 0.30 in (2002) |
| August 5 | 97.0°F (1945) | 41.0°F (1944) | 0.32 in (1957) |
| August 6 | 95.0°F (1945) | 33.1°F (1951) | 0.82 in (1992) |
| August 7 | 99.0°F (1972) | 39.0°F (2002) | 0.63 in (1962) |
| August 8 | 100.9°F (1960) | 39.0°F (2002) | 0.77 in (1943) |
| August 9 | 102.9°F (1981) | 41.0°F (1956) | 0.68 in (1994) |
| August 10 | 102.0°F (1981) | 39.9°F (1959) | 0.18 in (1957) |
| August 11 | 102.0°F (1981) | 39.9°F (1956) | 0.30 in (2009) |
| August 12 | 100.9°F (2021) | 37.9°F (2006) | 0.63 in (1978) |
| August 13 | 100.9°F (2021) | 39.9°F (2020) | 0.91 in (2014) |
| August 14 | 102.0°F (2023) | 37.0°F (1951) | 0.79 in (1976) |
| August 15 | 102.0°F (2023) | 41.0°F (1982) | 0.69 in (2025) |
| August 16 | 102.0°F (2023) | 36.0°F (1951) | 0.80 in (2025) |
| August 17 | 99.0°F (2012) | 36.0°F (1951) | 0.75 in (1995) |
| August 18 | 99.0°F (2022) | 37.9°F (1973) | 1.83 in (1975) |
| August 19 | 99.0°F (2016) | 37.9°F (1945) | 1.16 in (2007) |
| August 20 | 100.0°F (1951) | 37.0°F (1945) | 1.50 in (2008) |
| August 21 | 93.0°F (1951) | 37.0°F (1947) | 0.87 in (2004) |
| August 22 | 93.9°F (1951) | 37.0°F (1947) | 2.14 in (2001) |
| August 23 | 96.1°F (1942) | 39.0°F (1996) | 0.99 in (1977) |
| August 24 | 98.1°F (2025) | 37.9°F (1953) | 0.76 in (1978) |
| August 25 | 95.0°F (2016) | 37.0°F (1992) | 1.53 in (1977) |
| August 26 | 96.1°F (1986) | 36.0°F (1957) | 1.42 in (2004) |
| August 27 | 96.1°F (1986) | 34.0°F (1989) | 1.34 in (1991) |
| August 28 | 98.1°F (1967) | 37.0°F (1985) | 1.00 in (1968) |
| August 29 | 97.0°F (1967) | 37.9°F (1965) | 0.91 in (1997) |
| August 30 | 97.0°F (2022) | 39.0°F (1965) | 1.40 in (2015) |
| August 31 | 97.0°F (1987) | 39.0°F (1973) | 0.59 in (1959) |