Listen to Fog Horn on
Golden Gate Bridge*
Simultaneously, 2 foghorns on the south tower of
the Golden Gate Bridge sound together to make a single blast every 20
seconds, while the Golden Gate Bridge mid-channel fog diaphone sounds
two blasts every 40 seconds.
Inbound ships heading into San Francisco Bay
steer left of the foghorn on the south tower and right of the
mid-channel fog diaphone. Outbound ships stay to the right of
the mid-channel fog diaphone. Fog is most prevalent at the
Golden Gate in July and August.
The Point Bonita Light is 2.5 miles due west of
the Bridge.
