textproduct: San Francisco Bay Area

KEY MESSAGES

Updated at 1215 AM PDT Tue Jun 23 2026

- Hazardous beach conditions along the Pacific Coast through Wednesday

- Warming trend continues, peaking midweek, with Minor HeatRisk expected

- An upper trough settles over the West Coast by late week, bringing cooler temperatures and breezy to gusty winds

SHORT TERM

Updated at 1215 AM PDT Tue Jun 23 2026 (Today through Wednesday)

The marine layer is roughly 1000 to 1500 ft with stratus building back inland early this morning, although slightly less inland push than yesterday morning.

The marine layer will continue to slowly compress through the short term with a slow reduction in stratus and a warming and dry trend through midweek. The more compressed marine layer will allow patchy fog to develop along the coast and in wind-sheltered valleys this morning and again tonight/Wednesday morning.

While a warming trend is expected through Wednesday, have lowered highs temps a couple of degrees as the overall ridging pattern is trending weaker. As a result, the threat of Moderate HeatRisk conditions for portions of the South and East Bay looks to have ended Highs will climb into the 80s for inland areas, while far interior areas will reach the 90s. Continued cool along with coast with highs in the upper 50s to lower 60s, with 70s for near- coast areas.

We continue to highlight a long-period southerly swell that will bring a risk for sneaker waves and strong rip currents, with a Beach Hazards Statement out through Wednesday. If heading to the coast, stay back from the beach, and away from jetties, piers, beachside rocks, and other infrastructure near the water. Never turn your back to the ocean! For more information, see the BEACHES section.

LONG TERM

Updated at 1215 AM PDT Tue Jun 23 2026 (Wednesday night through next Monday)

An upper-level trough will approach the West Coast by Thursday. Temperatures will still be similar to Wednesday, with a few spots seeing their afternoon highs slightly lower than Wednesday, mainly south of the Bay Area. The cooling trend will become more pronounced Friday into Saturday as upper-level troughing deepens over the region, leading to a resurgence of the marine layer and breezy to gusty winds. Temps will be the coolest on Saturday with highs generally in the 60s and 70s. Patchy drizzle will could also develop along the coast. Onshore winds will increase, peaking Friday and Saturday with a frontal passage, with gusts 30 to 40+ mph across ridgelines and through gaps and passes. A slight warming trend is still favored for Sunday into early next week, but overall confidence remains low as there is quite a large spread in model guidance in regards to the progression of the upper trough to the east and ridging trying to creep back in from the eastern Pacific.

AVIATION

(06Z TAFS) Issued at 915 PM PDT Mon Jun 22 2026

It's VFR except satellite and surface observations show stratus /MVFR-IFR/ along the coastline and locally inland. Stratus /MVFR- IFR/ moves inland tonight and Tuesday morning. Stratus mixes out to the coastline with conditions improving to MVFR-VFR by late Tuesday morning and afternoon. Coastal stratus redevelops Tuesday night and Wednesday morning.

Vicinity of SFO...Stratus /MVFR-IFR/ prevails tonight and Tuesday morning with mix out to VFR 18z Tuesday. Stratus /MVFR/ returns mid Tuesday evening. West wind decreasing to near 10 knots tonight then increasing to 15 to 25 knots beginning 18z Tuesday, then easing to 12 knots mid Tuesday evening.

SFO Bridge Approach...Similar to SFO.

Vicinity of SJC and OAK...For SJC Airport VFR for the evening, then stratus /MVFR-IFR/ overnight then mixes out to VFR 17z Tuesday. Northwest wind 10 knots decreasing to light southeast wind early Tuesday morning then northwest near 10 knots Tuesday afternoon. For OAK Airport stratus /MVFR-IFR/ prevails tonight and Tuesday morning, mixing out to VFR 19z. West wind 5 to 15 knots.

Monterey Bay Terminals...Stratus /MVFR-IFR/ prevails tonight and Tuesday morning. Conditions improving to MVFR-VFR late Tuesday morning and afternoon. Stratus /MVFR-IFR/ returns Tuesday evening and night. Onshore winds 5 to 15 knots.

MARINE

(Tonight through next Sunday) Issued at 906 PM PDT Mon Jun 22 2026

Gentle to moderate winds will persist through mid week. Fresh to strong breezes resume over the coastal waters mid to late week. Seas moderate through Wednesday with long period southwest swell persisting through the extended forecast.

BEACHES

Updated at 1215 AM PDT Tue Jun 22 2026

Long period southerly swell at around 14 to 16 seconds will increase to 17 to 19 seconds by the middle of the week as energetic storms in the Southern Hemisphere continue to affect the California coast, especially for south and southwest facing beaches. Hazardous beach conditions are advertised, specifically for moderate to steeply sloped beaches along the Pacific Coast of the North Bay, San Mateo, Santa Cruz counties. A Beach Hazards Statement for Pacific Coast beaches continues through Wednesday afternoon. Be sure to check beach conditions before you head out. Sneaker waves will run up the beach much farther than other waves, potentially catching beachgoers by surprise and resulting in people being swept into the water. Rip currents are strong enough to pull the strongest swimmers away from shore. Swim near a lifeguard if possible. Stay back from the beach, and away from jetties, piers, beachside rocks, and other infrastructure near the water. Never turn your back to the ocean!

MTR WATCHES/WARNINGS/ADVISORIES

CA...Beach Hazards Statement through Wednesday afternoon for CAZ006- 505-509-529-530.

PZ...None.