September weather in Roseburg, OR
The average temperature in Roseburg in September is 66.1°F (52.2°F–80.1°F). Average precipitation: 0.85 inches.
September is a fall month in Roseburg, and is warmer than the annual average of 55.9°F. Daily temperatures swing about 27.9°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 12h 17m. For travel, September is a comfortable month to visit.
Avg High
80.1°F
Avg Low
52.2°F
Precipitation
0.85 in
Daylight
12h 17m
September records in Roseburg
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (1998) | 44.1°F (1955) | 1.17 in (1941) |
| September 2 | 104.0°F (1934) | 46.0°F (1933) | 0.60 in (1941) |
| September 3 | 99.0°F (2020) | 41.0°F (1958) | 0.56 in (1960) |
| September 4 | 102.0°F (1955) | 41.0°F (1958) | 0.41 in (2007) |
| September 5 | 105.1°F (2024) | 41.0°F (1954) | 0.54 in (2009) |
| September 6 | 99.0°F (1958) | 42.1°F (1947) | 0.25 in (1931) |
| September 7 | 98.1°F (1935) | 42.1°F (1939) | 0.33 in (2010) |
| September 8 | 100.0°F (1935) | 42.1°F (1962) | 1.00 in (1900) |
| September 9 | 98.1°F (1944) | 39.9°F (1964) | 0.91 in (1949) |
| September 10 | 99.0°F (1944) | 41.0°F (1931) | 0.36 in (1954) |
| September 11 | 99.0°F (2009) | 43.0°F (1931) | 0.54 in (2024) |
| September 12 | 98.1°F (1948) | 42.1°F (1962) | 0.24 in (1939) |
| September 13 | 97.0°F (2012) | 42.1°F (1952) | 0.44 in (1936) |
| September 14 | 100.9°F (1937) | 42.1°F (1952) | 0.40 in (1935) |
| September 15 | 97.0°F (2023) | 43.0°F (1936) | 1.08 in (1963) |
| September 16 | 96.1°F (2025) | 39.0°F (1936) | 0.35 in (1955) |
| September 17 | 99.0°F (1962) | 33.1°F (1965) | 0.30 in (1944) |
| September 18 | 91.0°F (1952) | 34.0°F (1965) | 1.23 in (2021) |
| September 19 | 95.0°F (1939) | 34.0°F (1965) | 0.65 in (2010) |
| September 20 | 98.1°F (2014) | 37.9°F (1958) | 0.59 in (2013) |
| September 21 | 98.1°F (1939) | 34.0°F (1955) | 0.56 in (2013) |
| September 22 | 100.9°F (2009) | 36.0°F (1955) | 0.47 in (1934) |
| September 23 | 100.0°F (1943) | 37.0°F (1961) | 0.77 in (1948) |
| September 24 | 99.0°F (2024) | 37.0°F (1958) | 1.37 in (2014) |
| September 25 | 91.0°F (1952) | 36.0°F (1955) | 0.75 in (2023) |
| September 26 | 95.0°F (2016) | 35.1°F (1934) | 0.95 in (1957) |
| September 27 | 98.1°F (2003) | 36.0°F (1961) | 1.45 in (1940) |
| September 28 | 95.0°F (1935) | 36.0°F (1954) | 0.90 in (1938) |
| September 29 | 96.1°F (2020) | 35.1°F (1954) | 0.96 in (2013) |
| September 30 | 90.0°F (1935) | 32.0°F (1954) | 0.96 in (1951) |