San Francisco is currently experiencing an intensification of its typical fog cycles, marked by a noticeable increase in both the density and duration of fog, particularly during the early morning and late evening hours. Local meteorological observations have pinpointed the combination of cooler ocean temperatures and specific prevailing wind patterns as the primary drivers behind this heightened fog formation. While the National Weather Service acknowledges that such conditions are not uncommon for this time of year, they emphasize that the current intensity is more pronounced than usual.