Marine Weather and Tide Forecast for Rio Vista, CA
 | Sunrise 6:01 AM Sunset 8:05 PM Moonrise 1:05 AM Moonset 11:26 AM |
Marine Forecasts
NOTE: Zones updated 4/16/2026. Some zones changed. Use Edit if needed.
PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 847 Am Pdt Sat May 9 2026
Today - SW wind 5 to 10 kt, rising to 10 to 15 kt late.
Tonight - SW wind 10 to 15 kt.
Sun - SW wind 5 to 10 kt.
Sun night - SW wind 5 to 10 kt.
Mon - SW wind around 5 kt, rising to 5 to 10 kt in the afternoon.
Mon night - SW wind 5 to 10 kt.
Tue - SW wind around 5 kt, rising to 10 to 15 kt in the afternoon.
Tue night - SW wind 10 to 15 kt.
Wed - W wind 15 to 20 kt, easing to 10 to 15 kt in the afternoon.
Wed night - W wind 10 to 15 kt, becoming sw 5 to 10 kt after midnight.
PZZ500 847 Am Pdt Sat May 9 2026
Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
fresh to strong northwest breezes with occasional near gale force gusts will continue through the remainder of the weekend along with moderate seas. Winds become more northerly on Sunday before gradually easing late Sunday into Monday. Gentle to moderate north to northwest breezes are expected on Tuesday and Wednesday with breezy conditions returning to the inner waters late week.
fresh to strong northwest breezes with occasional near gale force gusts will continue through the remainder of the weekend along with moderate seas. Winds become more northerly on Sunday before gradually easing late Sunday into Monday. Gentle to moderate north to northwest breezes are expected on Tuesday and Wednesday with breezy conditions returning to the inner waters late week.
7 Day Forecast for Marine Location Near Rio Vista, CA
NEW! Add second zone forecast
| Rio Vista Click for Map Sat -- 02:04 AM PDT Moonrise Sat -- 04:12 AM PDT 1.66 feet Low Tide Sat -- 06:01 AM PDT Sunrise Sat -- 08:44 AM PDT 2.96 feet High Tide Sat -- 12:26 PM PDT Moonset Sat -- 02:13 PM PDT Last Quarter Sat -- 04:57 PM PDT 0.27 feet Low Tide Sat -- 08:05 PM PDT Sunset Sat -- 11:32 PM PDT 3.23 feet High Tide Tide / Current data from XTide NOT FOR NAVIGATION |
Rio Vista, Sacramento River, California, Tide feet
| 12 am |
| 2.9 |
| 1 am |
| 2.6 |
| 2 am |
| 2.1 |
| 3 am |
| 1.8 |
| 4 am |
| 1.7 |
| 5 am |
| 1.7 |
| 6 am |
| 2.1 |
| 7 am |
| 2.6 |
| 8 am |
| 2.9 |
| 9 am |
| 3 |
| 10 am |
| 2.8 |
| 11 am |
| 2.5 |
| 12 pm |
| 2.1 |
| 1 pm |
| 1.6 |
| 2 pm |
| 1.1 |
| 3 pm |
| 0.7 |
| 4 pm |
| 0.4 |
| 5 pm |
| 0.3 |
| 6 pm |
| 0.4 |
| 7 pm |
| 1 |
| 8 pm |
| 1.7 |
| 9 pm |
| 2.4 |
| 10 pm |
| 2.9 |
| 11 pm |
| 3.2 |
| Sacramento River Light 14 (depth 3 ft) Click for Map Flood direction 55 true Ebb direction 235 true Sat -- 12:20 AM PDT -0.00 knots Slack Sat -- 02:04 AM PDT Moonrise Sat -- 02:50 AM PDT -0.72 knots Max Ebb Sat -- 05:33 AM PDT 0.00 knots Slack Sat -- 06:01 AM PDT Sunrise Sat -- 07:57 AM PDT 0.78 knots Max Flood Sat -- 10:46 AM PDT -0.00 knots Slack Sat -- 12:26 PM PDT Moonset Sat -- 01:54 PM PDT -1.06 knots Max Ebb Sat -- 02:13 PM PDT Last Quarter Sat -- 06:44 PM PDT 0.00 knots Slack Sat -- 08:05 PM PDT Sunset Sat -- 10:17 PM PDT 0.90 knots Max Flood Tide / Current data from XTide NOT FOR NAVIGATION |
Sacramento River Light 14 (depth 3 ft), California Current, knots
| 12 am |
| 0.2 |
| 1 am |
| -0.3 |
| 2 am |
| -0.6 |
| 3 am |
| -0.7 |
| 4 am |
| -0.6 |
| 5 am |
| -0.3 |
| 6 am |
| 0.2 |
| 7 am |
| 0.6 |
| 8 am |
| 0.8 |
| 9 am |
| 0.6 |
| 10 am |
| 0.3 |
| 11 am |
| -0.1 |
| 12 pm |
| -0.6 |
| 1 pm |
| -0.9 |
| 2 pm |
| -1.1 |
| 3 pm |
| -1 |
| 4 pm |
| -0.8 |
| 5 pm |
| -0.6 |
| 6 pm |
| -0.3 |
| 7 pm |
| 0.1 |
| 8 pm |
| 0.5 |
| 9 pm |
| 0.8 |
| 10 pm |
| 0.9 |
| 11 pm |
| 0.8 |
FXUS66 KSTO 091941 AFDSTO
Area Forecast Discussion National Weather Service Sacramento CA 1241 PM PDT Sat May 9 2026
For additional details on weather and expected impacts over the next 7 days, please visit weather.gov/sto/briefing.
KEY MESSAGES
- Increasingly hot and dry conditions through early next week, with widespread Moderate HeatRisk Monday and Tuesday.
- Hottest Days Monday and Tuesday with triple digit temperatures and daily record highs possible.
- Slight cooling trend from Wednesday onward, with increased Delta breeze influence.
DISCUSSION
Today through Friday
A warming and drying trend continues today as ridging build eastward. Widespread Minor HeatRisk is expected today and Sunday, with areas of Moderate HeatRisk in the Valley. High temperatures today are forecast to be in the high 80s to mid 90s. Lingering troughing influence will somewhat temper daytime highs and provide overnight relief through Sunday.
On Monday and Tuesday, daytime temperatures will climb again, with widespread Moderate HeatRisk in the Valley both days. Valley highs have potential to both meet or exceed local records, as well as reach triple digits in some locations. The NBM has a 30 to 50% chance of 100 degrees or more in the northern San Joaquin Valley, as well as in the central Sacramento Valley (particularly in eastern Glenn and Colusa Counties, and Butte County). A Heat Advisory remains in place for these areas from 11am on Monday through 8pm on Tuesday. Areas closer to the Delta will see much better overnight relief on Monday and Tuesday, though daytime temperatures will still be quite hot. Be sure to practice heat safety! Drink plenty of fluids, stay in an air-conditioned room or in the shade during the heat of the day, and consider checking in on those more susceptible to heat.
Ensembles depict the ridge breaking down towards the middle of next week which will result in a gradual cooling trend from Wednesday onward, however temperatures will still be 5 to 15 degrees above normal through the end of next week.
AVIATION
General VFR conditions are expected over the next 24 hours.
Surface winds generally 12 kts or less except near the Delta, where winds to 15 kts and gusts to 20-25 kts are possible. Local gusts up to 20 kts across portions of the southern Sacramento and northern San Joaquin valleys until 06z Sunday.
STO WATCHES/WARNINGS/ADVISORIES
Heat Advisory from 11 AM Monday to 8 PM PDT Tuesday for Butte County Below 1000 ft-C. Stanislaus County including Modesto- Eastern Colusa County-Eastern Glenn County-W. Stanislaus County Above 1000 ft & I-5.
Area Forecast Discussion National Weather Service Sacramento CA 1241 PM PDT Sat May 9 2026
For additional details on weather and expected impacts over the next 7 days, please visit weather.gov/sto/briefing.
KEY MESSAGES
- Increasingly hot and dry conditions through early next week, with widespread Moderate HeatRisk Monday and Tuesday.
- Hottest Days Monday and Tuesday with triple digit temperatures and daily record highs possible.
- Slight cooling trend from Wednesday onward, with increased Delta breeze influence.
DISCUSSION
Today through Friday
A warming and drying trend continues today as ridging build eastward. Widespread Minor HeatRisk is expected today and Sunday, with areas of Moderate HeatRisk in the Valley. High temperatures today are forecast to be in the high 80s to mid 90s. Lingering troughing influence will somewhat temper daytime highs and provide overnight relief through Sunday.
On Monday and Tuesday, daytime temperatures will climb again, with widespread Moderate HeatRisk in the Valley both days. Valley highs have potential to both meet or exceed local records, as well as reach triple digits in some locations. The NBM has a 30 to 50% chance of 100 degrees or more in the northern San Joaquin Valley, as well as in the central Sacramento Valley (particularly in eastern Glenn and Colusa Counties, and Butte County). A Heat Advisory remains in place for these areas from 11am on Monday through 8pm on Tuesday. Areas closer to the Delta will see much better overnight relief on Monday and Tuesday, though daytime temperatures will still be quite hot. Be sure to practice heat safety! Drink plenty of fluids, stay in an air-conditioned room or in the shade during the heat of the day, and consider checking in on those more susceptible to heat.
Ensembles depict the ridge breaking down towards the middle of next week which will result in a gradual cooling trend from Wednesday onward, however temperatures will still be 5 to 15 degrees above normal through the end of next week.
AVIATION
General VFR conditions are expected over the next 24 hours.
Surface winds generally 12 kts or less except near the Delta, where winds to 15 kts and gusts to 20-25 kts are possible. Local gusts up to 20 kts across portions of the southern Sacramento and northern San Joaquin valleys until 06z Sunday.
STO WATCHES/WARNINGS/ADVISORIES
Heat Advisory from 11 AM Monday to 8 PM PDT Tuesday for Butte County Below 1000 ft-C. Stanislaus County including Modesto- Eastern Colusa County-Eastern Glenn County-W. Stanislaus County Above 1000 ft & I-5.
Wind History for Port Chicago, CA
toggle option: (graph/table)
Link to 1 hour of 5 minute data for KSUU
Terminal Aerodrome Forecast (TAF) for KSUU
Wind History Graph: SUU
(wind in knots)
GEOS Local Image of Central West Coast
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Sacramento, CA,
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