San Francisco starts hazy this Tuesday, August 4, but skies clear by mid-to-late morning as high pressure builds in, with a high near 75°F that actually cools to around 71°F in the afternoon once the sea breeze fills back in — a light layer is worth grabbing if you’re heading toward Ocean Beach or the Marina later today.
Today’s Setup
The National Weather Service in San Francisco (MTR office) reports a stratus deck pushed in from the south overnight, blanketing much of the coastline, but that marine layer is expected to retreat back to the coast by mid-to-late morning, leaving mostly clear skies inland. West-southwest wind runs 5 to 13 mph with gusts up to 18 mph, so secure anything loose on the deck or balcony.
Best Window To Be Outside
Midday into early afternoon is your sweet spot today, after the haze clears near 8 AM and before the afternoon cool-down sets back in along the coast. Tuesday night stays mild with a low around 58°F under partly cloudy skies, comfortable for an evening walk along the Embarcadero.
Fire Risk And Heat Inland
Forecasters are flagging an elevated fire weather threat across the interior North and East Bays and the Diablo Range through the week, plus a Moderate HeatRisk building in interior valleys like the South and East Bay — San Francisco proper stays insulated by the marine influence, but if you’re heading inland, pack extra water. Given the fire risk building through the week, it’s smart to have a go bag emergency evacuation kit ready and an N95 respirator mask smoke on hand in case smoke drifts in later this season.
What To Wear Or Bring
Layer up: a light hoodie for the morning haze, sunscreen for the midday sun, and something breathable for the breezy WSW gusts. It’s a good week to grab a UPF 50+ Sun Hoodie for Just $5, on sale now, before fire season really ramps up (/outdoor/loogu-upf-50-sun-hoodie-5-dollar-deal-fishing/). If you’re grilling outdoors tonight, a windproof lighter will save you some frustration in that breeze.
Tonight’s Games And Concerts
The Golden State Valkyries host the Toronto Tempo at Chase Center tonight — comfortable conditions for the walk in, so no weather worries for this one. Looking ahead, Lionel Richie and Earth, Wind & Fire bring their tour to Chase Center on August 6; check out our deeper event coverage and grab tickets on SeatGeek if you’re going, plus a Lionel Richie t-shirt to wear to the show. AC/DC plays Levi’s Stadium August 5 — an outdoor show, so with high pressure holding, expect a dry, mild evening.
Dinner Tonight
With mild, sunny weather all day, tonight’s a good night for something simple on the stove or grill — pasta or a quick stir-fry both work well. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door, along with Amazon Fresh groceries for the rest of the week.
Next Few Days
Wednesday looks nearly identical — mostly sunny, high near 74°F, light WSW wind 5 to 10 mph, with high pressure continuing to build through the weekend and into next week. No major changes are expected through Monday, though widespread Moderate HeatRisk is expected to return inland by the end of the work week.
