Marine Weather and Tide Forecast for South San Francisco, CA
April 22, 2025 3:29 PM PDT (22:29 UTC) Change Location
![]() | Sunrise 6:22 AM Sunset 7:53 PM Moonrise 2:37 AM Moonset 1:09 PM |
PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 315 Pm Pdt Tue Apr 22 2025
This afternoon - SW wind around 10 kt. Waves around 2 ft or less.
Tonight - SW wind 5 to 10 kt. Waves around 2 ft or less.
Wed - SW wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Waves around 2 ft or less.
Wed night - SW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Waves around 2 ft or less.
Thu - SW wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Waves around 2 ft or less.
Thu night - W wind 10 to 15 kt. Waves around 2 ft or less.
Fri - SW wind 10 to 15 kt. Waves around 2 ft or less. A chance of drizzle in the afternoon.
Fri night - SW wind 10 to 15 kt, becoming W 5 to 10 kt after midnight. Waves around 2 ft or less. A chance of drizzle.
Sat - W wind 5 to 10 kt. Waves around 2 ft or less.
Sat night - W wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Waves around 2 ft or less.
PZZ500 315 Pm Pdt Tue Apr 22 2025
Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
strong northwesterly winds over the outer waters will continue through Wednesday with gale force gusts expected over the northern outer waters. Rough seas will be expected in the outer waters through Wednesday. Moderate northwesterly winds and moderate seas will prevail Thursday through Saturday with a chance for light rain or drizzle Friday.
strong northwesterly winds over the outer waters will continue through Wednesday with gale force gusts expected over the northern outer waters. Rough seas will be expected in the outer waters through Wednesday. Moderate northwesterly winds and moderate seas will prevail Thursday through Saturday with a chance for light rain or drizzle Friday.
7 Day Forecast for Marine Location Near South San Francisco, CA

NEW! Add second zone forecast
Oyster Point Marina Click for Map Tue -- 02:32 AM PDT 2.98 feet Low Tide Tue -- 03:36 AM PDT Moonrise Tue -- 06:24 AM PDT Sunrise Tue -- 07:56 AM PDT 5.86 feet High Tide Tue -- 02:08 PM PDT Moonset Tue -- 02:46 PM PDT -0.03 feet Low Tide Tue -- 07:51 PM PDT Sunset Tue -- 09:49 PM PDT 5.99 feet High Tide Tide / Current data from XTide NOT FOR NAVIGATION |   |
Oyster Point Marina, San Francisco Bay, California, Tide feet
12 am |
4.1 |
1 am |
3.4 |
2 am |
3 |
3 am |
3 |
4 am |
3.5 |
5 am |
4.2 |
6 am |
5 |
7 am |
5.6 |
8 am |
5.9 |
9 am |
5.5 |
10 am |
4.7 |
11 am |
3.4 |
12 pm |
2 |
1 pm |
0.8 |
2 pm |
0.1 |
3 pm |
-0 |
4 pm |
0.4 |
5 pm |
1.4 |
6 pm |
2.6 |
7 pm |
3.9 |
8 pm |
5 |
9 pm |
5.8 |
10 pm |
6 |
11 pm |
5.6 |
Oyster Point 2.8 mi E Click for Map Tue -- 12:15 AM PDT -0.72 knots Max Ebb Tue -- 03:14 AM PDT 0.00 knots Slack Tue -- 03:36 AM PDT Moonrise Tue -- 05:53 AM PDT 0.51 knots Max Flood Tue -- 06:24 AM PDT Sunrise Tue -- 08:35 AM PDT -0.00 knots Slack Tue -- 12:19 PM PDT -1.44 knots Max Ebb Tue -- 02:08 PM PDT Moonset Tue -- 03:37 PM PDT 0.00 knots Slack Tue -- 06:52 PM PDT 0.95 knots Max Flood Tue -- 07:51 PM PDT Sunset Tue -- 10:10 PM PDT -0.00 knots Slack Tide / Current data from XTide NOT FOR NAVIGATION |   |
Oyster Point 2.8 mi E, South San Francisco Bay, California Current, knots
12 am |
-0.7 |
1 am |
-0.7 |
2 am |
-0.4 |
3 am |
-0.1 |
4 am |
0.2 |
5 am |
0.4 |
6 am |
0.5 |
7 am |
0.4 |
8 am |
0.2 |
9 am |
-0.2 |
10 am |
-0.7 |
11 am |
-1.2 |
12 pm |
-1.4 |
1 pm |
-1.3 |
2 pm |
-1 |
3 pm |
-0.4 |
4 pm |
0.2 |
5 pm |
0.6 |
6 pm |
0.9 |
7 pm |
1 |
8 pm |
0.8 |
9 pm |
0.5 |
10 pm |
0.1 |
11 pm |
-0.5 |
Area Discussion for San Francisco/Monterey Bay Area, CA
Hide  HelpNOTE: mouseover dotted underlined text for definition
FXUS66 KMTR 222119 AFDMTR
Area Forecast Discussion National Weather Service San Francisco CA 219 PM PDT Tue Apr 22 2025
New SYNOPSIS, SHORT TERM, LONG TERM
SYNOPSIS
Issued at 218 PM PDT Tue Apr 22 2025
A pattern change happens tomorrow, which will kick off a cooling trend through the weekend. Patchy drizzle and fog will be possible if the marine layer Wed and Thu morning. Light rain and/or drizzle is possible Fri into Saturday, with the best chances appearing to be over the North Bay.
SHORT TERM
(This evening through Wednesday)
Issued at 218 PM PDT Tue Apr 22 2025
Short Term Key Messages *Slight chance for drizzle and patchy dense fog *Cooling trend begins
A shortwave trough passes over the PacNW Wed into Thu, placing weak troughing over us. This will increase onshore flow during this period, which should allow the marine layer to deepen and penetrate farther inland. Modest moisture looks to come with the onshore flow and that should lead to pockets of drizzle late tonight and into Wed morning. The most favorable areas look to be on along the coast, the Monterey Bay area, and perhaps around San Francisco Bay, in addition to areas with orographic lift. Currently have the drizzle/fog potential ending around 11AM, with stratus clearing for the North, East, and South Bay interior valleys. Coastal communities may struggle a bit longer and could potentially see stratus and drizzle linger to lunch time. High temperatures will range from near normal to about 10 degrees below their normal for this time of year.
Ridges, gaps, and perhaps even some associated channels/valleys may see gusts up to 20-35 mph Wed afternoon and evening.
LONG TERM
(Wednesday night through next Monday)
Issued at 218 PM PDT Tue Apr 22 2025
Long Term Key Messages *Increased onshore flow and a cooling trend through Saturday *15-45% chance for drizzle/light rain Friday/Saturday
Onshore flow continues into Thu, pushing more moisture into the region. This should lead to another cloudy night with pockets of drizzle, similar to Tue night into Wed morning. Skies look to be mostly cloudy during this time frame with more a brief period of zonal flow setting up. Another cool day will be on tap with high temperatures around 5 to 15 degrees below their normal. The signal for gusty ridge, gap, and associated valley/channels shows up again where they peak around 20-35 mph Thu afternoon and evening.
By Friday, models and cluster analysis agree that an upper level troughing deepens. There is still some uncertainty as to how strong or how far south this system goes and if it closes off. There is some agreement that it has shifted a bit more south, which has increased the PoP forecast across the region with the highest amounts being in the North Bay and for higher elevation terrain.
Confidence still remains a bit on the lower side for rainfall accumulation as we're still only expecting light rain or drizzle.
The latest forecast gives a smattering of a 0.01-0.10" for those in the North Bay mountains, along the Bay Area coast, and into the Central Valley mountains. This will likely change over the next few days as we get closer to the event.
As we head into early next week, clusters show upper level troughing moving east with upper level ridging returning. This should put temperatures closer to their seasonal normals.
AVIATION
(18Z TAFS)
Issued at 1017 AM PDT Tue Apr 22 2025
Currently a mixed bag of IFR-VFR across the board with brief widespread VFR expected this afternoon. High confidence in all terminals experiencing a reduction to at least MVFR overnight as an upper-level trough deepens the marine layer, allowing it to penetrate further inland. Onshore flow will prevail through the TAF period.
Vicinity of SFO...Currently VFR with offshore flow. High confidence in MVFR conditions returning to the terminal overnight.
Winds will prevail out of the west once the sea breeze kicks in this afternoon.
SFO Bridge Approach...San Mateo Bridge Approach continues to clear with the low clouds remaining within the San Francisco Bay expected to clear by the top of the hour.
Monterey Bay Terminals...Currently IFR with westerly flow at MRY and MVFR with northerly flow at SNS. Stratus is expected to continue retreating back toward the coast with VFR expected at both terminals by this afternoon. Both terminals have an 80% chance of IFR conditions returning this evening. Westerly winds will prevail through the TAF period.
MARINE
(Today through Sunday)
Issued at 913 AM PDT Tue Apr 22 2025
Strong northwesterly winds over the outer waters will continue through Wednesday with gale force gusts expected over the northern outer waters. Rough seas will be expected in the outer waters through Wednesday. Moderate northwesterly winds and moderate seas will prevail Thursday through Saturday with a chance for light rain or drizzle Friday.
MTR WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...Small Craft Advisory until 3 AM PDT Thursday for Pigeon Pt to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 0-10 nm.
Small Craft Advisory until 9 AM PDT Wednesday for Pt Reyes to Pigeon Pt 0-10 nm.
Small Craft Advisory from 9 AM Wednesday to 3 AM PDT Thursday for Pt Pinos to Pt Piedras Blancas 0-10 nm.
Small Craft Advisory until 3 PM PDT this afternoon for Pt Arena to Pt Reyes 10-60 NM.
Gale Warning until 9 AM PDT Wednesday for Pt Arena to Pt Reyes 10-60 NM.
Area Forecast Discussion National Weather Service San Francisco CA 219 PM PDT Tue Apr 22 2025
New SYNOPSIS, SHORT TERM, LONG TERM
SYNOPSIS
Issued at 218 PM PDT Tue Apr 22 2025
A pattern change happens tomorrow, which will kick off a cooling trend through the weekend. Patchy drizzle and fog will be possible if the marine layer Wed and Thu morning. Light rain and/or drizzle is possible Fri into Saturday, with the best chances appearing to be over the North Bay.
SHORT TERM
(This evening through Wednesday)
Issued at 218 PM PDT Tue Apr 22 2025
Short Term Key Messages *Slight chance for drizzle and patchy dense fog *Cooling trend begins
A shortwave trough passes over the PacNW Wed into Thu, placing weak troughing over us. This will increase onshore flow during this period, which should allow the marine layer to deepen and penetrate farther inland. Modest moisture looks to come with the onshore flow and that should lead to pockets of drizzle late tonight and into Wed morning. The most favorable areas look to be on along the coast, the Monterey Bay area, and perhaps around San Francisco Bay, in addition to areas with orographic lift. Currently have the drizzle/fog potential ending around 11AM, with stratus clearing for the North, East, and South Bay interior valleys. Coastal communities may struggle a bit longer and could potentially see stratus and drizzle linger to lunch time. High temperatures will range from near normal to about 10 degrees below their normal for this time of year.
Ridges, gaps, and perhaps even some associated channels/valleys may see gusts up to 20-35 mph Wed afternoon and evening.
LONG TERM
(Wednesday night through next Monday)
Issued at 218 PM PDT Tue Apr 22 2025
Long Term Key Messages *Increased onshore flow and a cooling trend through Saturday *15-45% chance for drizzle/light rain Friday/Saturday
Onshore flow continues into Thu, pushing more moisture into the region. This should lead to another cloudy night with pockets of drizzle, similar to Tue night into Wed morning. Skies look to be mostly cloudy during this time frame with more a brief period of zonal flow setting up. Another cool day will be on tap with high temperatures around 5 to 15 degrees below their normal. The signal for gusty ridge, gap, and associated valley/channels shows up again where they peak around 20-35 mph Thu afternoon and evening.
By Friday, models and cluster analysis agree that an upper level troughing deepens. There is still some uncertainty as to how strong or how far south this system goes and if it closes off. There is some agreement that it has shifted a bit more south, which has increased the PoP forecast across the region with the highest amounts being in the North Bay and for higher elevation terrain.
Confidence still remains a bit on the lower side for rainfall accumulation as we're still only expecting light rain or drizzle.
The latest forecast gives a smattering of a 0.01-0.10" for those in the North Bay mountains, along the Bay Area coast, and into the Central Valley mountains. This will likely change over the next few days as we get closer to the event.
As we head into early next week, clusters show upper level troughing moving east with upper level ridging returning. This should put temperatures closer to their seasonal normals.
AVIATION
(18Z TAFS)
Issued at 1017 AM PDT Tue Apr 22 2025
Currently a mixed bag of IFR-VFR across the board with brief widespread VFR expected this afternoon. High confidence in all terminals experiencing a reduction to at least MVFR overnight as an upper-level trough deepens the marine layer, allowing it to penetrate further inland. Onshore flow will prevail through the TAF period.
Vicinity of SFO...Currently VFR with offshore flow. High confidence in MVFR conditions returning to the terminal overnight.
Winds will prevail out of the west once the sea breeze kicks in this afternoon.
SFO Bridge Approach...San Mateo Bridge Approach continues to clear with the low clouds remaining within the San Francisco Bay expected to clear by the top of the hour.
Monterey Bay Terminals...Currently IFR with westerly flow at MRY and MVFR with northerly flow at SNS. Stratus is expected to continue retreating back toward the coast with VFR expected at both terminals by this afternoon. Both terminals have an 80% chance of IFR conditions returning this evening. Westerly winds will prevail through the TAF period.
MARINE
(Today through Sunday)
Issued at 913 AM PDT Tue Apr 22 2025
Strong northwesterly winds over the outer waters will continue through Wednesday with gale force gusts expected over the northern outer waters. Rough seas will be expected in the outer waters through Wednesday. Moderate northwesterly winds and moderate seas will prevail Thursday through Saturday with a chance for light rain or drizzle Friday.
MTR WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...Small Craft Advisory until 3 AM PDT Thursday for Pigeon Pt to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 0-10 nm.
Small Craft Advisory until 9 AM PDT Wednesday for Pt Reyes to Pigeon Pt 0-10 nm.
Small Craft Advisory from 9 AM Wednesday to 3 AM PDT Thursday for Pt Pinos to Pt Piedras Blancas 0-10 nm.
Small Craft Advisory until 3 PM PDT this afternoon for Pt Arena to Pt Reyes 10-60 NM.
Gale Warning until 9 AM PDT Wednesday for Pt Arena to Pt Reyes 10-60 NM.
Wind History for Alameda, CA
toggle option: (graph/table)
Airport Reports
Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Air | DewPt | RH | inHg |
KSFO SAN FRANCISCO INTL,CA | 2 sm | 33 min | NE 06 | 10 sm | Mostly Cloudy | 64°F | 54°F | 68% | 29.90 | |
KOAK METROPOLITAN OAKLAND INTL,CA | 9 sm | 36 min | NW 14G28 | 10 sm | Mostly Cloudy | 63°F | 52°F | 68% | 29.92 | |
KSQL SAN CARLOS,CA | 11 sm | 39 min | W 09 | 10 sm | Clear | 66°F | 52°F | 60% | 29.90 | |
KHAF HALF MOON BAY,CA | 12 sm | 14 min | SSW 10 | 3 sm | Overcast | Mist | 55°F | 52°F | 88% | 29.96 |
KHWD HAYWARD EXECUTIVE,CA | 13 sm | 35 min | NW 12 | 10 sm | Clear | 70°F | 52°F | 53% | 29.90 | |
KPAO PALO ALTO,CA | 18 sm | 42 min | NW 10 | 10 sm | Clear | 66°F | 54°F | 64% | 29.90 | |
KNUQ MOFFETT FEDERAL AFLD,CA | 23 sm | 14 min | NNW 12 | 10 sm | Clear | 68°F | 55°F | 64% | 29.89 |
Link to 1 hour of 5 minute data for KSFO
Terminal Aerodrome Forecast (TAF) for KSFO
Wind History Graph: SFO
(wind in knots)GEOS Local Image of Central West Coast
Edit Hide
San Francisco Bay Area, CA,

NOTICE: Some pages have affiliate links to Amazon. As an Amazon Associate, I earn from qualifying purchases. Please read website Cookie, Privacy, and Disclamers by clicking HERE. To contact me click HERE. For my YouTube page click HERE