Marine Weather and Tide Forecast for San Leandro, CA
July 27, 2024 5:07 AM PDT (12:07 UTC) Change Location
![]() | Sunrise 6:07 AM Sunset 8:22 PM Moonrise 11:10 PM Moonset 12:24 PM |
PZZ531 San Francisco Bay South Of The Bay Bridge- 244 Am Pdt Sat Jul 27 2024
Today - W wind 5 to 10 kt, rising to 10 to 15 kt this afternoon. Waves around 2 ft or less.
Tonight - W wind 10 to 15 kt, becoming sw 5 to 10 kt after midnight. Waves around 2 ft or less.
Sun - SW wind around 5 kt, becoming W 10 to 15 kt in the afternoon. Waves around 2 ft or less.
Sun night - W wind 10 to 15 kt, becoming sw 5 to 10 kt after midnight. Waves around 2 ft or less.
Mon - SW wind around 5 kt, becoming W 10 to 15 kt in the afternoon. Waves around 2 ft or less.
Mon night - W wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Waves around 2 ft or less.
Tue - W wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Waves around 2 ft or less.
Tue night - W wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Waves around 2 ft or less.
Wed - W wind around 5 kt, rising to 10 to 15 kt in the afternoon. Waves around 2 ft or less.
Wed night - W wind 10 to 15 kt, easing to around 5 kt after midnight. Waves around 2 ft or less.
PZZ500 244 Am Pdt Sat Jul 27 2024
Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
moderate to breezy northwest winds linger through the weekend before diminishing by early next week. Expect some strong gusts in the northern outer waters as well as along the big sur coast through this afternoon. Significant wave heights will continue to abate through the weekend.
moderate to breezy northwest winds linger through the weekend before diminishing by early next week. Expect some strong gusts in the northern outer waters as well as along the big sur coast through this afternoon. Significant wave heights will continue to abate through the weekend.
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Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 271032 AFDMTR
Area Forecast Discussion National Weather Service San Francisco CA 332 AM PDT Sat Jul 27 2024
New SYNOPSIS, SHORT TERM, LONG TERM, AVIATION, MARINE
SYNOPSIS
Issued at 330 AM PDT Sat Jul 27 2024
Seasonal to below average temperatures continue through mid-week before slightly above average temperatures return late week.
SHORT TERM
(Today and tonight)
Issued at 330 AM PDT Sat Jul 27 2024
Widespread seasonal to below average temperatures continue.
Temperatures will drop between 5 to 10 degrees across the interior today compared to yesterday as upper level troughing strengthens over the Western US. High temperatures across the interior are expected to be in the 70s to low 80s while highs closer to the coast will be in the 60s to low 70s. Interior Monterey and San Benito counties continue to be the hottest portions of our CWA with highs in the mid 80s to low 90s expected today. The marine layer remains fairly deep between 2000-2500 feet with satellite currently observing widespread stratus over much of the Bay Area and Central Coast. Ensemble guidance indicates moderate to high confidence in today's high temperature forecast but some uncertainty remains depending on how fast stratus dissipates this morning. If stratus dissipates more slowly than currently forecast, it may result in areas where stratus persisted for a longer time period struggling to reach their forecasted highs.
The HRRR and NBM both indicate that light drizzle is possible this morning and again tonight for locations directly along the coast and in areas where upslope ascent is favored. The most recent ECMWF runs show fairly dry low level conditions at 850mb and 700mb. As such, measurable precipitation beyond a trace to a few hundredths of an inch is not expected. The NBM continues to indicate some potential (20-40%) of scattered light showers over the marine environment overnight.
LONG TERM
(Sunday through Friday)
Issued at 330 AM PDT Sat Jul 27 2024
Seasonal to below average temperatures will continue through mid- week before trending seasonal to slightly above average by late next week. Upper level troughing will deepen Saturday into Sunday before the upper level low pressure system moves to the northeast and away from the West Coast by late Sunday. The upper level flow will then become more zonal (horizontal) by Monday, allowing for slight warming to occur with temperatures expected to increase by a few degrees each day from this point on. By mid-week, upper level ridging will again start to build over the West Coast with ridging and slightly above average temperatures to persist through the end of the forecast period. High temperatures will generally remain in the 70s to mid 80s on Sunday and Monday. Widespread highs in the low to mid 80s are expected to return inland (reaching into the upper 80s to low 90s across favored hot spots) Tuesday and Wednesday. By Thursday and Friday, high temperatures will reach the mid 80s to low 90s across the interior. For areas closer to the coast temperatures will not vary quite as much with temperatures primarily staying in the 60s directly along the coast and upper 60s to 70s slightly inland from the coast.
Moderate uncertainty remains in the high temperature forecast from Thursday onwards. Cluster guidance shows uncertainty in both where the ridge will set up and how strong that ridge will be. Most of the ensemble clusters favor the ridge setting up farther east of us but at least one cluster centers the ridge more directly over the West Coast. The strength and positioning of the ridge will impact how much our high temperatures increase next week with both ECMWF and GFS ensemble guidance showing a higher range of forecast highs from Thursday onwards. CPC guidance continues to favor slightly above average temperatures from Thursday onwards across our area which increases forecast confidence that temperatures will be slightly above average for the first week of August.
AVIATION
(12Z TAFS)
Issued at 330 AM PDT Sat Jul 27 2024
Deep marine layer developed overnight promoting widespread marine stratus. MVFR/IFR cigs are expected to linger well into the morning before mixing out and pulling back to the coast, where clouds are expected throughout most of the day. Inland terminals such as the North Bay and inland South and East bays will likely clear to VFR through mid-to-late morning, while coastal and Bay Area terminals may hold MVFR cigs through the period. Onshore wind pattern and gusty gap flows persist today into this evening.
Vicinity of SFO...High confidence in MVFR/IFR cigs through this morning with little chance of clearing through the afternoon. There is about a 4-5 hour window beginning around 21Z where a slight chance of SCT exists, but all guidance suggests cigs lingering through the TAF period.
SFO Bridge Approach... Similar to SFO.
Monterey Bay Terminals...IFR cigs persist through the morning with low confidence in clearing around midday to early afternoon.
Otherwise, high confidence in MVFR/IFR cigs returning later this afternoon and persisting into Sunday morning with some patchy DZ overnight.
MARINE
(Today through Thursday)
Issued at 330 AM PDT Sat Jul 27 2024
Moderate to breezy Northwest winds linger through the weekend before diminishing by early next week. Expect some strong gusts in the northern outer waters as well as along the Big Sur Coast through this afternoon. Significant wave heights will continue to abate through the weekend.
MTR WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...Small Craft Advisory until 9 AM PDT this morning for SF Bay N of Bay Bridge.
Small Craft Advisory from 3 PM this afternoon to 9 PM PDT this evening for Pt Pinos to Pt Piedras Blancas 0-10 nm.
Small Craft Advisory until 9 AM PDT Sunday for Pt Arena to Pt Reyes 10-60 NM.
Area Forecast Discussion National Weather Service San Francisco CA 332 AM PDT Sat Jul 27 2024
New SYNOPSIS, SHORT TERM, LONG TERM, AVIATION, MARINE
SYNOPSIS
Issued at 330 AM PDT Sat Jul 27 2024
Seasonal to below average temperatures continue through mid-week before slightly above average temperatures return late week.
SHORT TERM
(Today and tonight)
Issued at 330 AM PDT Sat Jul 27 2024
Widespread seasonal to below average temperatures continue.
Temperatures will drop between 5 to 10 degrees across the interior today compared to yesterday as upper level troughing strengthens over the Western US. High temperatures across the interior are expected to be in the 70s to low 80s while highs closer to the coast will be in the 60s to low 70s. Interior Monterey and San Benito counties continue to be the hottest portions of our CWA with highs in the mid 80s to low 90s expected today. The marine layer remains fairly deep between 2000-2500 feet with satellite currently observing widespread stratus over much of the Bay Area and Central Coast. Ensemble guidance indicates moderate to high confidence in today's high temperature forecast but some uncertainty remains depending on how fast stratus dissipates this morning. If stratus dissipates more slowly than currently forecast, it may result in areas where stratus persisted for a longer time period struggling to reach their forecasted highs.
The HRRR and NBM both indicate that light drizzle is possible this morning and again tonight for locations directly along the coast and in areas where upslope ascent is favored. The most recent ECMWF runs show fairly dry low level conditions at 850mb and 700mb. As such, measurable precipitation beyond a trace to a few hundredths of an inch is not expected. The NBM continues to indicate some potential (20-40%) of scattered light showers over the marine environment overnight.
LONG TERM
(Sunday through Friday)
Issued at 330 AM PDT Sat Jul 27 2024
Seasonal to below average temperatures will continue through mid- week before trending seasonal to slightly above average by late next week. Upper level troughing will deepen Saturday into Sunday before the upper level low pressure system moves to the northeast and away from the West Coast by late Sunday. The upper level flow will then become more zonal (horizontal) by Monday, allowing for slight warming to occur with temperatures expected to increase by a few degrees each day from this point on. By mid-week, upper level ridging will again start to build over the West Coast with ridging and slightly above average temperatures to persist through the end of the forecast period. High temperatures will generally remain in the 70s to mid 80s on Sunday and Monday. Widespread highs in the low to mid 80s are expected to return inland (reaching into the upper 80s to low 90s across favored hot spots) Tuesday and Wednesday. By Thursday and Friday, high temperatures will reach the mid 80s to low 90s across the interior. For areas closer to the coast temperatures will not vary quite as much with temperatures primarily staying in the 60s directly along the coast and upper 60s to 70s slightly inland from the coast.
Moderate uncertainty remains in the high temperature forecast from Thursday onwards. Cluster guidance shows uncertainty in both where the ridge will set up and how strong that ridge will be. Most of the ensemble clusters favor the ridge setting up farther east of us but at least one cluster centers the ridge more directly over the West Coast. The strength and positioning of the ridge will impact how much our high temperatures increase next week with both ECMWF and GFS ensemble guidance showing a higher range of forecast highs from Thursday onwards. CPC guidance continues to favor slightly above average temperatures from Thursday onwards across our area which increases forecast confidence that temperatures will be slightly above average for the first week of August.
AVIATION
(12Z TAFS)
Issued at 330 AM PDT Sat Jul 27 2024
Deep marine layer developed overnight promoting widespread marine stratus. MVFR/IFR cigs are expected to linger well into the morning before mixing out and pulling back to the coast, where clouds are expected throughout most of the day. Inland terminals such as the North Bay and inland South and East bays will likely clear to VFR through mid-to-late morning, while coastal and Bay Area terminals may hold MVFR cigs through the period. Onshore wind pattern and gusty gap flows persist today into this evening.
Vicinity of SFO...High confidence in MVFR/IFR cigs through this morning with little chance of clearing through the afternoon. There is about a 4-5 hour window beginning around 21Z where a slight chance of SCT exists, but all guidance suggests cigs lingering through the TAF period.
SFO Bridge Approach... Similar to SFO.
Monterey Bay Terminals...IFR cigs persist through the morning with low confidence in clearing around midday to early afternoon.
Otherwise, high confidence in MVFR/IFR cigs returning later this afternoon and persisting into Sunday morning with some patchy DZ overnight.
MARINE
(Today through Thursday)
Issued at 330 AM PDT Sat Jul 27 2024
Moderate to breezy Northwest winds linger through the weekend before diminishing by early next week. Expect some strong gusts in the northern outer waters as well as along the Big Sur Coast through this afternoon. Significant wave heights will continue to abate through the weekend.
MTR WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...Small Craft Advisory until 9 AM PDT this morning for SF Bay N of Bay Bridge.
Small Craft Advisory from 3 PM this afternoon to 9 PM PDT this evening for Pt Pinos to Pt Piedras Blancas 0-10 nm.
Small Craft Advisory until 9 AM PDT Sunday for Pt Arena to Pt Reyes 10-60 NM.
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Airport Reports
EDIT HIDE  Help Click EDIT to display multiple airports. Follow links for more data.Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Air | DewPt | RH | inHg |
KHWD HAYWARD EXECUTIVE,CA | 3 sm | 13 min | WSW 08 | 10 sm | Overcast | 61°F | 52°F | 72% | 29.91 | |
KOAK METROPOLITAN OAKLAND INTL,CA | 4 sm | 14 min | WSW 11 | 10 sm | Overcast | 61°F | 54°F | 77% | 29.92 | |
KSFO SAN FRANCISCO INTL,CA | 12 sm | 11 min | WSW 07 | 10 sm | Overcast | 55°F | 54°F | 94% | 29.91 | |
KSQL SAN CARLOS,CA | 12 sm | 12 min | W 06 | 10 sm | Overcast | 57°F | 54°F | 88% | 29.93 | |
KLVK LIVERMORE MUNI,CA | 19 sm | 14 min | W 10 | 10 sm | Overcast | 57°F | 52°F | 82% | 29.89 | |
KNUQ MOFFETT FEDERAL AFLD,CA | 19 sm | 12 min | W 07 | 10 sm | Overcast | 59°F | 50°F | 72% | 29.92 | |
KHAF HALF MOON BAY,CA | 21 sm | 12 min | SW 04 | 1/2 sm | Overcast | Mist | 55°F | 55°F | 100% | 29.93 |
KCCR BUCHANAN FIELD,CA | 22 sm | 14 min | SSW 13G22 | 10 sm | Overcast | 57°F | 52°F | 82% | 29.88 |
Link to 1 hour of 5 minute data for KHWD
Terminal Aerodrome Forecast (TAF) for KHWD
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Terminal Aerodrome Forecast (TAF) for KHWD
Wind History graph: HWD
(wind in knots)Tide / Current for Roberts Landing, 1.3 miles west of, San Francisco Bay, California
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Roberts Landing
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Sat -- 12:24 AM PDT 1.46 feet Low Tide
Sat -- 05:53 AM PDT 5.80 feet High Tide
Sat -- 06:08 AM PDT Sunrise
Sat -- 12:02 PM PDT 1.38 feet Low Tide
Sat -- 01:23 PM PDT Moonset
Sat -- 06:20 PM PDT 7.59 feet High Tide
Sat -- 07:54 PM PDT Last Quarter
Sat -- 08:21 PM PDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 12:24 AM PDT 1.46 feet Low Tide
Sat -- 05:53 AM PDT 5.80 feet High Tide
Sat -- 06:08 AM PDT Sunrise
Sat -- 12:02 PM PDT 1.38 feet Low Tide
Sat -- 01:23 PM PDT Moonset
Sat -- 06:20 PM PDT 7.59 feet High Tide
Sat -- 07:54 PM PDT Last Quarter
Sat -- 08:21 PM PDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Roberts Landing, 1.3 miles west of, San Francisco Bay, California, Tide feet
12 am |
1.5 |
1 am |
1.6 |
2 am |
2.3 |
3 am |
3.4 |
4 am |
4.6 |
5 am |
5.5 |
6 am |
5.8 |
7 am |
5.5 |
8 am |
4.7 |
9 am |
3.6 |
10 am |
2.5 |
11 am |
1.7 |
12 pm |
1.4 |
1 pm |
1.7 |
2 pm |
2.7 |
3 pm |
4.1 |
4 pm |
5.6 |
5 pm |
6.9 |
6 pm |
7.5 |
7 pm |
7.5 |
8 pm |
6.7 |
9 pm |
5.5 |
10 pm |
4.1 |
11 pm |
2.7 |
Tide / Current for Little Coyote Pt 3.4 mi NNE, South San Francisco Bay, California Current
EDIT HIDE  HelpLittle Coyote Pt 3.4 mi NNE
Click for Map
Sat -- 02:37 AM PDT 0.54 knots Max Flood
Sat -- 05:44 AM PDT -0.01 knots Slack
Sat -- 06:09 AM PDT Sunrise
Sat -- 08:41 AM PDT -0.57 knots Max Ebb
Sat -- 11:40 AM PDT 0.00 knots Slack
Sat -- 01:23 PM PDT Moonset
Sat -- 02:46 PM PDT 0.58 knots Max Flood
Sat -- 05:52 PM PDT -0.00 knots Slack
Sat -- 07:54 PM PDT Last Quarter
Sat -- 08:21 PM PDT Sunset
Sat -- 09:18 PM PDT -0.79 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 02:37 AM PDT 0.54 knots Max Flood
Sat -- 05:44 AM PDT -0.01 knots Slack
Sat -- 06:09 AM PDT Sunrise
Sat -- 08:41 AM PDT -0.57 knots Max Ebb
Sat -- 11:40 AM PDT 0.00 knots Slack
Sat -- 01:23 PM PDT Moonset
Sat -- 02:46 PM PDT 0.58 knots Max Flood
Sat -- 05:52 PM PDT -0.00 knots Slack
Sat -- 07:54 PM PDT Last Quarter
Sat -- 08:21 PM PDT Sunset
Sat -- 09:18 PM PDT -0.79 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Little Coyote Pt 3.4 mi NNE, South San Francisco Bay, California Current, knots
12 am |
0 |
1 am |
0.3 |
2 am |
0.5 |
3 am |
0.5 |
4 am |
0.4 |
5 am |
0.2 |
6 am |
-0.1 |
7 am |
-0.3 |
8 am |
-0.5 |
9 am |
-0.6 |
10 am |
-0.4 |
11 am |
-0.2 |
12 pm |
0.1 |
1 pm |
0.3 |
2 pm |
0.5 |
3 pm |
0.6 |
4 pm |
0.5 |
5 pm |
0.3 |
6 pm |
-0 |
7 pm |
-0.4 |
8 pm |
-0.6 |
9 pm |
-0.8 |
10 pm |
-0.7 |
11 pm |
-0.6 |
San Francisco Bay Area, CA,
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