Marine Weather and Tide Forecast for Santa Venetia, CA

SHORT TERM
Issued at 1202 AM PDT Sun Jun 14 2026 (Today and tonight)

Marine stratus continues o expand over the San Francisco Bay Area and Central California Coast this early Saturday morning. With the marine layer ever-so gradually deepening over the last few days, interior locations such as Livermore and Concord are finally realizing the marine-cooled influence where temperatures running 4-8 deg F cooler compared to 24 hours ago. By sunrise, expect the classic June stratus for many communities.

The eastern Pacific ridge has been the driving synoptic feature for California over the last several days. This will change today as a weak disturbance develops over NorCal, disrupting the ridge's scope temporarily. While minimal day-to-day changes are forecast along the coast, interior locations can expect several degrees of cooling from Saturday to today. This will result more widespread Minor HeatRisk throughout the Bay Area and Central Coast, with Moderate HeatRisk reserved for the Central Valley and very isolated East/South Bay locations.

High tide coastal flooding will continue to occur nightly along the low-lying areas of the Bayshore and the Pacific Coast through the middle of the week. Tide levels are forecast to rise up to 2.0 feet above normal into the middle of the week. This increase is driven by multiple contributing factors, including Sunday's new moon and lunar perigee, ~ 7 inches of tidal anomaly from storm surge and thermal expansion in the Eastern Pacific, and ~ 2 inches of sea level rise since vertical datums were established in the 1980s/1990s. While lower than the historic tidal flooding in January (which peaked at 2.6 ft), these tides could end up being the highest observed in the summer, beating the current record of 1.7 ft from July 2022.

LONG TERM
Issued at 1202 AM PDT Sun Jun 14 2026 (Monday through Saturday)

Eastern Pacific ridge will attempt to re-establish itself on Monday and Tuesday. Temperatures in some interior locations may subtly nudge upward as a result, but nothing that reintroduces new HeatRisk categories -- still anticipating widespread Minor to locally Moderate. The ordinary marine status should continue to blanket the usual spots through much of the week.

AVIATION
(06Z TAFS)
Issued at 947 PM PDT Sat Jun 13 2026

Satellite imagery highlights the marine stratus filling in across adjacent coastal valleys and gaps. Status is projected to fill in across the San Francisco Bay from KOAK down to KSFO and through the North Bay valleys overnight. More restrictive visibilities will be pinned to the immediate coast and through the Santa Rosa Plain and Salinas Valley. There is some forecast uncertainty regarding the immediate coast (specifically KHAF) regarding how well the stratus deck will scatter out in the afternoon. Outgoing TAFs will carry a pessimistic outlook holding the stratus over the terminal, but it is possible the cloud cover will erode and hold just offshore by the afternoon. Otherwise, light overnight winds will give way to breezy onshore conditions again tomorrow afternoon as marine stratus erodes for most locations.

Vicinity of SFO... Moderate confidence regarding the expansion of stratus to fill in across the Bay and KSFO through the mid-morning hours. Any stratus observed will erode through daylight hours as wind speeds pick up, ranging from the northwest between 15-20 knots by the afternoon.

SFO Bridge Approach... Similar to SFO

Vicinity of SJC and OAK... For OAK, status is expected to fill in this morning bringing IFR conditions before mixing out between 17- 19Z. For SJC, while VFR is currently highlighted, there is a window between 10Z-16Z where marine stratus could briefly press far enough south to induce periodic IFR ceilings. Confidence in this outcome is low at this time.

Monterey Bay Terminals... High confidence persistence forecast for KMRY and KSNS as the marine layer remains deeply entrenched across the bay. IFR to LIFR ceilings will be likely through the night before diurnal heating clears out the stratus deck.

MARINE
(Tonight through next Friday)
Issued at 947 PM PDT Sat Jun 13 2026

Gentle southerly breezes and moderate to rough seas with a low south-southwesterly swell persist across most of the coastal waters. Winds will remain fairly consistent through the weekend as the seas subside. Fresh to strong north winds will develop in the northern outer waters towards the middle of the week.

BEACHES
Issued at 1230 PM PDT Sat Jun 13 2026

Long period southerly swell will continue through the weekend, 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 is in effect for Pacific coast beaches along the central coast and the Bay Area coast from late tonight through late Tuesday night. Be sure 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...Coastal Flood Advisory until 3 AM PDT Wednesday for CAZ006-506- 508.

Beach Hazards Statement through late Tuesday night for CAZ006- 505-509-529-530.

Coastal Flood Advisory until 3 AM PDT Tuesday for CAZ505-509-529- 530.

PZ...None.