Fortuna Weather in August
Average highs run from 71°F on August 1 to 72°F on August 31, and lows from 54°F to 54°F. Normal precipitation for the month is 0.05 in over about 1 wet days.
August day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
August at a glance
- Average high
- 72°F
- Average low
- 54°F
- Precipitation
- 0.05 in
- Record high
- 93°FAug 15, 2020
- Record low
- 41°FAug 31, 1957
- Chance of a freeze
- 0%
- Daylight
- 14 h 18 min to 13 h 07 min
- Cloud cover
- 24%
- Humidity
- 51%
- Dew point
- 45°F
- Wind
- 4.5 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Aug 1 | 71°F | 54°F | 91°F 1995 | 48°F 1957 | 5% | 0% |
| Aug 2 | 71°F | 54°F | 92°F 1993 | 47°F 1957 | 5% | 0% |
| Aug 3 | 71°F | 54°F | 82°F 1993 | 46°F 1950 | 5% | 0% |
| Aug 4 | 71°F | 54°F | 78°F 2017 | 46°F 1996 | 5% | 0% |
| Aug 5 | 71°F | 54°F | 78°F 1943 | 46°F 1970 | 5% | 0% |
| Aug 6 | 71°F | 54°F | 88°F 1942 | 45°F 1948 | 5% | 0% |
| Aug 7 | 71°F | 54°F | 84°F 1959 | 45°F 1946 | 5% | 0% |
| Aug 8 | 71°F | 54°F | 90°F 1972 | 47°F 1974 | 5% | 0% |
| Aug 9 | 71°F | 54°F | 89°F 2002 | 46°F 1975 | 5% | 0% |
| Aug 10 | 71°F | 54°F | 89°F 2002 | 47°F 1956 | 5% | 0% |
| Aug 11 | 71°F | 54°F | 84°F 2005 | 47°F 1959 | 5% | 0% |
| Aug 12 | 71°F | 54°F | 84°F 1992 | 47°F 1985 | 4% | 0% |
| Aug 13 | 71°F | 54°F | 85°F 2002 | 47°F 1927 | 4% | 0% |
| Aug 14 | 72°F | 54°F | 90°F 2020 | 47°F 1960 | 4% | 0% |
| Aug 15 | 72°F | 54°F | 93°F 2020 | 46°F 1928 | 4% | 0% |
| Aug 16 | 72°F | 54°F | 92°F 2020 | 45°F 1935 | 4% | 0% |
| Aug 17 | 72°F | 54°F | 81°F 2024 | 46°F 1970 | 4% | 0% |
| Aug 18 | 72°F | 54°F | 89°F 1960 | 45°F 1970 | 4% | 0% |
| Aug 19 | 72°F | 54°F | 80°F 1935 | 46°F 1995 | 4% | 0% |
| Aug 20 | 72°F | 54°F | 85°F 1995 | 47°F 1945 | 4% | 0% |
| Aug 21 | 72°F | 54°F | 87°F 1945 | 46°F 1980 | 4% | 0% |
| Aug 22 | 72°F | 54°F | 83°F 1971 | 46°F 1927 | 5% | 0% |
| Aug 23 | 72°F | 54°F | 81°F 1926 | 46°F 1973 | 5% | 0% |
| Aug 24 | 72°F | 54°F | 90°F 2010 | 45°F 1966 | 5% | 0% |
| Aug 25 | 72°F | 54°F | 87°F 2010 | 43°F 1963 | 5% | 0% |
| Aug 26 | 72°F | 54°F | 88°F 2017 | 45°F 1993 | 5% | 0% |
| Aug 27 | 72°F | 54°F | 90°F 2017 | 46°F 1962 | 5% | 0% |
| Aug 28 | 72°F | 54°F | 85°F 2017 | 45°F 1960 | 5% | 0% |
| Aug 29 | 72°F | 54°F | 92°F 1944 | 46°F 1964 | 5% | 0% |
| Aug 30 | 72°F | 54°F | 88°F 2007 | 46°F 1969 | 5% | 0% |
| Aug 31 | 72°F | 54°F | 83°F 1987 | 41°F 1957 | 5% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- August 1
- sunrise 6:14 AM, sunset 8:32 PM
- August 31
- sunrise 6:43 AM, sunset 7:50 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00048045 (Scotia), public domain. Records: NOAA GHCN-Daily, station USC00048045, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.