Golden Gate Bridge, San Francisco, CA
Poor VisibilityFogust

Golden Gate Bridge in August

Fogust is San Franciscans' nickname for August, when fog remains heavy (17 fog days, 45% clear). The marine layer is still dominant but late August often brings warm spells that push fog offshore, previewing September's Indian summer. Your best bet is late morning to early afternoon, or waiting for a warm spell forecast.

45%
Clear Days
17
Fog Days
68°F
Avg High
55°F
Avg Low
15–28 mph
Wind
Poor
Rating

What to Expect in August

August is nearly as foggy as July, earning the nickname "Fogust" from San Franciscans. With 17 fog days and 45% clear conditions, the marine layer remains dominant. However, late August often brings the first warm spells that preview September's Indian summer — occasional days of 75–80°F with no fog at all.

Visibility in August

Similar to July but with a slight improvement, especially in the second half of the month. The Pacific High begins to weaken, and occasional warm spells push fog offshore for 2–3 days at a time. These 'heat events' provide unexpected clear windows. The standard fog cycle (foggy morning, clearing midday, fog returns afternoon) still applies on most days.

Check live visibility now

Best Time of Day

Late morning to early afternoon (11 AM–3 PM) remains the safest window. Watch for warm spells — when inland temperatures soar above 100°F, the coast paradoxically gets foggier. But when a warm spell reaches the coast itself, you get rare summer clear days that are spectacular.

View 3-day fog forecast

What to Expect

Still peak tourist season with heavy crowds. Late August sees a slight decrease as families prepare for school. Occasional warm days surprise visitors (75–80°F at the bridge). The 'Fogust' cultural moment — locals commiserate about the fog on social media. Karl the Fog's social accounts peak in engagement.

Photography Tips

Similar to July for fog photography. The occasional warm clear days in late August provide rare opportunities for summer sunshine photos of the bridge — the light is warm and the sky is deep blue. These are the days to shoot from Baker Beach or Crissy Field. Keep checking the forecast.

Full photography guide

What to Wear

Same as July on fog days — full winter layers. But carry lighter layers too for the occasional warm spell. The temperature range in August can be dramatic: 55°F and foggy one day, 78°F and sunny the next. Check the forecast and dress accordingly.

Events & Happenings

Outside Lands Music Festival at Golden Gate Park (early August). Stern Grove Festival continues. Labor Day weekend (late August/early September) is very busy at the bridge.

Best Viewpoints in August

These viewpoints offer the best experience during August. Check our full viewpoints guide for all 12 locations.