August weather in Arcata, CA
The average temperature in Arcata in August is 58.5°F (53.0°F–64.0°F). Average precipitation: 0.18 inches.
August is a summer month in Arcata, and is warmer than the annual average of 52.6°F. Daily temperatures swing about 11°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 13h 38m. For travel, August is a comfortable month to visit.
Avg High
64.0°F
Avg Low
53.0°F
Precipitation
0.18 in
Daylight
13h 38m