May weather in Coos Bay, OR
The average temperature in Coos Bay in May is 54.2°F (48.0°F–60.5°F). Average precipitation: 2.95 inches.
May is a spring month in Coos Bay, and is warmer than the annual average of 53°F. Daily temperatures swing about 12.5°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 14h 30m. For travel, May is a comfortable month to visit.
Avg High
60.5°F
Avg Low
48.0°F
Precipitation
2.95 in
Daylight
14h 30m
May records in Coos Bay
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 82.0°F (2016) | 33.1°F (1954) | 2.04 in (1949) |
| May 2 | 72.0°F (1918) | 30.9°F (1920) | 1.00 in (2020) |
| May 3 | 84.9°F (1944) | 33.1°F (1919) | 1.36 in (2024) |
| May 4 | 86.0°F (2013) | 30.0°F (1930) | 1.49 in (1926) |
| May 5 | 84.0°F (2013) | 30.9°F (1909) | 2.13 in (1963) |
| May 6 | 87.1°F (1949) | 32.0°F (1919) | 1.35 in (1963) |
| May 7 | 73.9°F (1987) | 35.1°F (1929) | 2.16 in (1991) |
| May 8 | 81.0°F (1923) | 32.0°F (1922) | 0.98 in (1979) |
| May 9 | 88.0°F (2019) | 33.1°F (1922) | 1.96 in (2005) |
| May 10 | 93.0°F (1941) | 32.0°F (1919) | 1.19 in (1961) |
| May 11 | 73.0°F (1926) | 28.9°F (1916) | 1.09 in (1907) |
| May 12 | 81.0°F (1934) | 33.1°F (1920) | 1.08 in (1951) |
| May 13 | 93.9°F (1939) | 34.0°F (1919) | 1.11 in (2017) |
| May 14 | 95.0°F (2023) | 33.1°F (1917) | 1.88 in (1906) |
| May 15 | 82.0°F (2006) | 35.1°F (1912) | 0.93 in (2019) |
| May 16 | 86.0°F (1956) | 37.0°F (1906) | 1.00 in (2017) |
| May 17 | 75.0°F (1925) | 36.0°F (1966) | 1.19 in (1957) |
| May 18 | 75.9°F (1926) | 35.1°F (1909) | 0.89 in (1911) |
| May 19 | 82.9°F (1978) | 36.0°F (1922) | 1.24 in (1936) |
| May 20 | 73.9°F (1942) | 36.0°F (1911) | 4.35 in (1998) |
| May 21 | 87.1°F (1914) | 35.1°F (1909) | 1.24 in (1990) |
| May 22 | 80.1°F (1941) | 30.0°F (1920) | 2.23 in (2013) |
| May 23 | 75.0°F (1999) | 37.9°F (1919) | 0.93 in (1989) |
| May 24 | 75.9°F (1986) | 35.1°F (1926) | 0.94 in (1980) |
| May 25 | 84.0°F (2005) | 32.0°F (1920) | 0.72 in (1960) |
| May 26 | 75.0°F (2022) | 33.1°F (1922) | 0.81 in (1906) |
| May 27 | 87.1°F (1922) | 33.1°F (1921) | 0.75 in (1942) |
| May 28 | 79.0°F (1922) | 30.0°F (1920) | 1.45 in (1909) |
| May 29 | 78.1°F (1931) | 35.1°F (1927) | 1.27 in (1998) |
| May 30 | 81.0°F (1924) | 26.1°F (1912) | 1.06 in (1943) |
| May 31 | 84.0°F (1970) | 32.0°F (1919) | 1.19 in (1943) |