August weather in Astoria, OR
The average temperature in Astoria in August is 61.3°F (53.9°F–68.7°F). Average precipitation: 1.12 inches.
August is a summer month in Astoria, and is warmer than the annual average of 51.4°F. Daily temperatures swing about 14.8°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 13h 59m. For travel, August is one of the best months of the year to visit.
Avg High
68.7°F
Avg Low
53.9°F
Precipitation
1.12 in
Daylight
13h 59m
August records in Astoria
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 82.9°F (2017) | 43.0°F (1987) | 0.42 in (1989) |
| August 2 | 93.0°F (2017) | 45.0°F (1969) | 1.64 in (1956) |
| August 3 | 87.1°F (1993) | 43.0°F (1969) | 0.36 in (1962) |
| August 4 | 91.9°F (2012) | 43.0°F (1982) | 0.15 in (2022) |
| August 5 | 75.9°F (1958) | 45.0°F (1982) | 0.09 in (1962) |
| August 6 | 88.0°F (1972) | 44.1°F (1959) | 0.83 in (1995) |
| August 7 | 93.9°F (1978) | 48.0°F (1966) | 0.49 in (1985) |
| August 8 | 88.0°F (1981) | 45.0°F (1988) | 1.27 in (1994) |
| August 9 | 96.1°F (1981) | 44.1°F (1975) | 0.12 in (2006) |
| August 10 | 88.0°F (1977) | 46.0°F (1954) | 0.25 in (1957) |
| August 11 | 95.0°F (1992) | 46.9°F (1966) | 0.45 in (1978) |
| August 12 | 84.9°F (2016) | 43.0°F (1966) | 0.75 in (1965) |
| August 13 | 95.0°F (2002) | 44.1°F (2020) | 0.76 in (1976) |
| August 14 | 95.0°F (2023) | 44.1°F (1984) | 0.25 in (1993) |
| August 15 | 86.0°F (2020) | 45.0°F (1982) | 1.46 in (2025) |
| August 16 | 87.1°F (1977) | 44.1°F (1969) | 0.52 in (1976) |
| August 17 | 84.0°F (2022) | 41.0°F (1973) | 0.36 in (1990) |
| August 18 | 88.0°F (2016) | 39.9°F (1973) | 0.58 in (1968) |
| August 19 | 98.1°F (2016) | 39.0°F (1973) | 0.79 in (2008) |
| August 20 | 89.1°F (1966) | 45.0°F (1968) | 0.71 in (2008) |
| August 21 | 86.0°F (2018) | 42.1°F (1973) | 1.16 in (2004) |
| August 22 | 88.0°F (1988) | 41.0°F (1973) | 1.92 in (2001) |
| August 23 | 84.0°F (2025) | 44.1°F (1959) | 1.50 in (1968) |
| August 24 | 86.0°F (1964) | 45.0°F (1991) | 1.58 in (1953) |
| August 25 | 91.0°F (2016) | 43.0°F (1992) | 0.96 in (2004) |
| August 26 | 91.0°F (2016) | 42.1°F (1991) | 1.01 in (1997) |
| August 27 | 91.0°F (2019) | 43.0°F (1955) | 1.09 in (1975) |
| August 28 | 84.9°F (2017) | 42.1°F (1984) | 0.74 in (1983) |
| August 29 | 87.1°F (2024) | 42.1°F (1969) | 1.02 in (1977) |
| August 30 | 84.0°F (1968) | 46.0°F (1965) | 1.18 in (1954) |
| August 31 | 86.0°F (1972) | 43.0°F (1964) | 0.94 in (1961) |