
Daily high temperatures decrease by 2°F, from 87°F to 85°F, rarely falling below 80°F or exceeding 92°F. Daily low temperatures decrease by 3°F, from 74°F to 71°F, rarely falling below 67°F or exceeding 76°F. The month of October in San Carlos experiences very rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 80% to 57%. The clearest day of the month is October 31, with clear, mostly clear, or partly cloudy conditions 43% of the time.