San Francisco is warming up today, Sunday, August 9, with sunny skies and a high near 78°F before temperatures ease back to around 73° by afternoon. The National Weather Service says this is likely the hottest day of the current warm spell, so get outdoor plans done in the morning and stay weather-aware if you’re heading inland or into the hills later.
Today’s Setup
Overnight stratus is clearing off the coast as a strengthening pressure gradient sends offshore flow down the Sacramento Valley, pushing our marine layer back toward the immediate coastline. That means more sun for most neighborhoods than we saw Saturday, with southwest wind around 2 to 13 mph. Tonight cools to a low near 59 under mostly clear skies.
Best Window To Be Outside
Morning through early afternoon is your sweet spot before inland heat builds. Ocean Beach and the Marina should stay comfortably breezy thanks to the retreating marine layer, while Golden Gate Park offers shade if you’re out past midday. Once you get away from the water toward the East Bay hills, temperatures run 10 to 15 degrees above normal.
Heat, Fire, And Coastal Flood Risk
The NWS has widespread moderate HeatRisk today with areas of major HeatRisk in the higher terrain, plus near-critical fire weather conditions in those same hills — so hold off on anything that throws sparks if you’re near open space. Separately, minor coastal flooding is expected along San Francisco Bay shoreline spots (think the Embarcadero and other low-lying bayfront areas) during the evening high tide, continuing through Thursday morning, so check tide-dependent beach access before you head out.
What To Wear Or Bring
Sun protection matters most today — a UPF 50+ Sun Hoodie is a smart, breathable option, and this week you can score one for $5. If you’re stuck inside during the warmest stretch, a ceiling fan smart remote makes it easy to keep bedrooms comfortable without cranking the AC.
Games, Concerts, And Weekend Plans
Monster Jam roars into Oakland Arena tonight — Get tickets on SeatGeek if you’re heading over. The Golden State Valkyries host the Chicago Sky at Chase Center on August 12; grab Official team gear on Fanatics before tipoff. Looking further out, Luke Bryan brings his Word On The Street Tour to Shoreline Amphitheatre on August 14 — Find tickets on StubHub, and a Luke Bryan t-shirt makes a solid concert layer for the cooler evening air out there.
Dinner Idea Tonight
With a warm afternoon fading into a cool, breezy evening, something simple and flexible — pasta or a quick stir-fry — hits the spot without heating up the kitchen too much. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.
Next Few Days
Monday cools slightly with a high near 72 under mostly sunny skies, though southwest wind gusts could reach 21 mph. The NWS long-term outlook points to a broader cooling trend kicking in through the week, a welcome break after today’s heat. For more, check the outdoor gear deals hub before your next adventure.
