July weather in Portola, CA
The average temperature in Portola in July is 65.5°F (44.6°F–86.4°F). Average precipitation: 0.34 inches.
July is a summer month in Portola, and is warmer than the annual average of 46.7°F. Daily temperatures swing about 41.8°F between overnight low and afternoon high. Expect about 1 days with precipitation. Daylight averages about 14h 34m. For travel, July is a comfortable month to visit.
Avg High
86.4°F
Avg Low
44.6°F
Precipitation
0.34 in
Daylight
14h 34m
July records in Portola
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 109.9°F (1924) | 21.9°F (1976) | 0.20 in (1932) |
| July 2 | 107.1°F (1924) | 23.0°F (1976) | 0.49 in (1980) |
| July 3 | 100.9°F (2023) | 24.1°F (1976) | 0.19 in (2015) |
| July 4 | 102.9°F (1984) | 26.1°F (1927) | 0.28 in (2021) |
| July 5 | 100.9°F (2007) | 26.1°F (1934) | 0.00 in (1925) |
| July 6 | 99.0°F (2024) | 24.1°F (1961) | 0.00 in (1925) |
| July 7 | 100.0°F (2024) | 26.1°F (1961) | 0.30 in (1937) |
| July 8 | 100.0°F (2024) | 25.0°F (1935) | 1.20 in (1974) |
| July 9 | 100.0°F (1929) | 26.1°F (1921) | 0.45 in (2015) |
| July 10 | 100.9°F (1929) | 24.1°F (1921) | 0.28 in (2015) |
| July 11 | 100.9°F (2002) | 25.0°F (1935) | 1.86 in (2001) |
| July 12 | 104.0°F (1929) | 26.1°F (1920) | 0.10 in (1955) |
| July 13 | 100.0°F (2021) | 28.0°F (1920) | 1.44 in (1992) |
| July 14 | 100.0°F (1972) | 30.0°F (1920) | 0.17 in (1952) |
| July 15 | 100.9°F (1972) | 28.0°F (1966) | 0.06 in (1941) |
| July 16 | 100.9°F (2023) | 28.0°F (1921) | 0.80 in (1965) |
| July 17 | 100.0°F (1960) | 30.0°F (1924) | 1.10 in (1965) |
| July 18 | 102.0°F (1960) | 27.0°F (1939) | 0.69 in (1971) |
| July 19 | 104.0°F (1931) | 25.0°F (1921) | 0.35 in (1958) |
| July 20 | 100.9°F (1931) | 28.0°F (1920) | 0.47 in (2024) |
| July 21 | 99.0°F (2013) | 28.9°F (1987) | 0.32 in (1979) |
| July 22 | 99.0°F (1938) | 28.0°F (1922) | 0.38 in (2015) |
| July 23 | 100.0°F (2003) | 28.0°F (1947) | 0.48 in (1956) |
| July 24 | 99.0°F (1931) | 25.0°F (1921) | 0.52 in (1958) |
| July 25 | 99.0°F (1939) | 28.0°F (1921) | 1.48 in (1985) |
| July 26 | 100.0°F (1939) | 25.0°F (1921) | 1.65 in (1944) |
| July 27 | 100.0°F (1939) | 27.0°F (1924) | 0.42 in (1952) |
| July 28 | 97.0°F (2016) | 26.1°F (1920) | 0.28 in (1973) |
| July 29 | 99.0°F (2016) | 24.1°F (1916) | 0.56 in (1952) |
| July 30 | 99.0°F (2003) | 23.0°F (1919) | 0.67 in (1952) |
| July 31 | 100.0°F (1977) | 25.0°F (1919) | 0.33 in (1952) |