Lightning Map San Francisco, CA
Real-time lightning tracking for San Francisco, California. This city averages 5 thunderstorm days per year, making lightning awareness important for San Francisco residents and visitors.
Real-Time Lightning Near San Francisco
Monitor live lightning strikes and approaching storms
Get Live Lightning Data for San Francisco
Download Lightning Tracker to see every lightning strike near San Francisco in real time. Set custom alert zones and get notified before storms reach your location.
Thunderstorm Season in San Francisco
When to expect lightning activity in San Francisco, CA
Thunderstorm season in San Francisco spans from April through September. Peak lightning activity occurs in June and July, when warm, moist air from the south collides with cooler air masses. Spring severe weather season from March through May can produce dangerous storms.
Compared to the national average of approximately 25 thunderstorm days per year, San Francisco sees 20 fewer days of thunderstorm activity. The California statewide average is 15 days.
Lightning Safety Tips for San Francisco
Essential guidelines to stay safe during thunderstorms
30-30 Rule
When you see lightning, count to 30. If you hear thunder before reaching 30, get indoors. Wait 30 minutes after the last thunderclap before going outside.
Seek Shelter
With 5 thunderstorm days annually, residents of San Francisco should always have a shelter plan. Move inside a substantial building or hard-topped vehicle.
Stay Informed
Use Lightning Tracker to monitor real-time lightning near San Francisco. Set alerts for your neighborhood to get advance warning of approaching storms.
Avoid Open Areas
Stay away from open fields, hilltops, isolated trees, and bodies of water during storms. If hiking, descend from ridges and peaks immediately.
Nearby Cities in California
Monitor lightning in other California cities