September weather in Newport, WA
The average temperature in Newport in September is 57.3°F (41.4°F–73.2°F). Average precipitation: 1.16 inches.
September is a fall month in Newport, and is warmer than the annual average of 46.2°F. Daily temperatures swing about 31.8°F between overnight low and afternoon high. Daylight averages about 12h 20m. For travel, September is a comfortable month to visit.
Avg High
73.2°F
Avg Low
41.4°F
Precipitation
1.16 in
Daylight
12h 20m
September records in Newport
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 98.1°F (1938) | 26.1°F (1914) | 0.57 in (2010) |
| September 2 | 98.1°F (1988) | 19.9°F (1933) | 0.94 in (1968) |
| September 3 | 100.9°F (2025) | 26.1°F (1932) | 0.88 in (2014) |
| September 4 | 99.0°F (2025) | 23.0°F (1933) | 0.97 in (1960) |
| September 5 | 96.1°F (1988) | 21.9°F (1933) | 1.62 in (1940) |
| September 6 | 97.0°F (1944) | 21.9°F (1929) | 1.40 in (1927) |
| September 7 | 96.1°F (1944) | 24.1°F (1929) | 1.05 in (1947) |
| September 8 | 93.9°F (1944) | 21.0°F (1933) | 0.98 in (2003) |
| September 9 | 93.0°F (1944) | 26.1°F (1933) | 0.85 in (2003) |
| September 10 | 93.9°F (1963) | 27.0°F (1928) | 1.30 in (1927) |
| September 11 | 96.1°F (2025) | 28.0°F (1928) | 1.80 in (1927) |
| September 12 | 93.9°F (1943) | 24.1°F (1949) | 0.49 in (1997) |
| September 13 | 96.1°F (1948) | 24.1°F (1915) | 1.50 in (1927) |
| September 14 | 95.0°F (1938) | 21.0°F (1970) | 0.86 in (1927) |
| September 15 | 93.0°F (1938) | 23.0°F (1970) | 0.84 in (1949) |
| September 16 | 93.9°F (1938) | 25.0°F (1970) | 0.56 in (1947) |
| September 17 | 98.1°F (1938) | 24.1°F (1965) | 0.86 in (1964) |
| September 18 | 98.1°F (1938) | 26.1°F (1945) | 0.80 in (2013) |
| September 19 | 88.0°F (1917) | 24.1°F (1913) | 1.05 in (1988) |
| September 20 | 90.0°F (1938) | 19.9°F (1934) | 1.20 in (1945) |
| September 21 | 93.0°F (1938) | 21.0°F (2009) | 0.69 in (1972) |
| September 22 | 90.0°F (1938) | 21.0°F (1946) | 0.79 in (1913) |
| September 23 | 91.0°F (1938) | 21.9°F (1932) | 0.48 in (1969) |
| September 24 | 89.1°F (1987) | 12.0°F (1926) | 1.01 in (1986) |
| September 25 | 91.9°F (1952) | 10.9°F (1934) | 0.68 in (1959) |
| September 26 | 87.1°F (1952) | 18.0°F (1926) | 0.61 in (1982) |
| September 27 | 88.0°F (1967) | 21.9°F (1961) | 0.70 in (1955) |
| September 28 | 88.0°F (1967) | 19.9°F (1999) | 1.28 in (1962) |
| September 29 | 87.1°F (1938) | 19.0°F (1919) | 0.72 in (2023) |
| September 30 | 84.0°F (1991) | 15.1°F (2009) | 1.54 in (2013) |