August weather in Siletz, OR
The average temperature in Siletz in August is 58.7°F (51.0°F–66.4°F). Average precipitation: inches.
August is a summer month in Siletz, and is warmer than the annual average of 52.2°F. Daily temperatures swing about 15.4°F between overnight low and afternoon high. Daylight averages about 13h 52m. For travel, August is one of the best months of the year to visit.
Avg High
66.4°F
Avg Low
51.0°F
Precipitation
in
Daylight
13h 52m
August records in Siletz
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 72.0°F (2015) | 48.0°F (2015) | 0.10 in (2013) |
| August 2 | 73.0°F (2017) | 46.0°F (2011) | 0.16 in (2013) |
| August 3 | 84.9°F (2017) | 48.9°F (2013) | 0.16 in (2019) |
| August 4 | 73.9°F (2017) | 48.0°F (2021) | 0.01 in (2017) |
| August 5 | 84.0°F (2012) | 48.0°F (2021) | 0.02 in (2018) |
| August 6 | 70.0°F (2015) | 46.9°F (2022) | 0.27 in (2025) |
| August 7 | 71.1°F (2023) | 46.9°F (2022) | 0.15 in (2009) |
| August 8 | 73.9°F (2023) | 48.0°F (2022) | 0.09 in (2021) |
| August 9 | 72.0°F (2023) | 51.1°F (2011) | 0.12 in (2016) |
| August 10 | 70.0°F (2009) | 46.9°F (2014) | 0.15 in (2022) |
| August 11 | 75.0°F (2025) | 46.9°F (2014) | 0.06 in (2013) |
| August 12 | 73.0°F (2021) | 46.9°F (2012) | 0.47 in (2009) |
| August 13 | 75.0°F (2019) | 46.0°F (2020) | 0.13 in (2009) |
| August 14 | 75.9°F (2010) | 45.0°F (2020) | 0.14 in (2014) |
| August 15 | 82.0°F (2023) | 46.9°F (2012) | 0.39 in (2013) |
| August 16 | 84.0°F (2020) | 46.9°F (2017) | 0.10 in (2013) |
| August 17 | 78.1°F (2020) | 48.9°F (2016) | 0.04 in (2013) |
| August 18 | 71.1°F (2025) | 41.0°F (2015) | 0.02 in (2020) |
| August 19 | 73.9°F (2015) | 46.9°F (2023) | 0.10 in (2010) |
| August 20 | 86.0°F (2016) | 45.0°F (2023) | 0.05 in (2009) |
| August 21 | 71.1°F (2025) | 46.0°F (2010) | 0.12 in (2020) |
| August 22 | 84.0°F (2018) | 46.9°F (2013) | 0.31 in (2019) |
| August 23 | 70.0°F (2022) | 46.0°F (2016) | 0.14 in (2011) |
| August 24 | 73.0°F (2011) | 45.0°F (2016) | 0.08 in (2024) |
| August 25 | 81.0°F (2010) | 45.0°F (2009) | 0.04 in (2009) |
| August 26 | 89.1°F (2016) | 44.1°F (2012) | 0.18 in (2021) |
| August 27 | 75.9°F (2016) | 46.0°F (2014) | 1.05 in (2013) |
| August 28 | 89.1°F (2019) | 46.0°F (2009) | 0.45 in (2015) |
| August 29 | 75.0°F (2017) | 46.0°F (2009) | 0.23 in (2013) |
| August 30 | 81.0°F (2024) | 45.0°F (2021) | 0.56 in (2015) |
| August 31 | 72.0°F (2019) | 45.0°F (2021) | 0.30 in (2014) |