Tides Today & Tomorrow in Blackslough Landing, San Joaquin River, CA

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 1:29 pm (0.0 ft)
Next high tide : in 2h 38m at 5:57 am (4.1 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:46 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Sep 1997

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:373.66:213.012:230.46:357:35New Moon1Mon
2Tue6:183.56:573.112:281.01:010.46:367:33New Moon2Tue
3Wed7:003.37:333.11:120.91:380.56:377:32New Moon3Wed
4Thu7:413.28:083.21:550.82:130.76:387:30Waxing Crescent4Thu
5Fri8:252.98:423.22:390.72:460.86:397:29Waxing Crescent5Fri
6Sat9:122.79:183.23:250.73:171.06:407:27Waxing Crescent6Sat
7Sun10:032.69:553.24:150.73:431.26:407:26Waxing Crescent7Sun
8Mon11:012.410:403.35:100.74:031.46:417:24First Quarter8Mon
9Tue12:032.36:100.64:451.56:427:23First Quarter9Tue
10Wed1:072.37:100.56:301.66:437:21First Quarter10Wed
11Thu12:343.42:092.48:070.47:441.56:447:19First Quarter11Thu
12Fri1:393.53:052.69:000.38:471.46:457:18Waxing Gibbous12Fri
13Sat2:443.73:562.89:500.19:451.16:467:16Waxing Gibbous13Sat
14Sun3:443.84:423.110:380.110:410.96:467:15Waxing Gibbous14Sun
15Mon4:413.85:263.311:240.111:360.66:477:13Full Moon15Mon
16Tue5:353.86:093.612:090.26:487:12Full Moon16Tue
17Wed6:293.76:523.812:310.312:530.36:497:10Full Moon17Wed
18Thu7:223.57:363.91:250.21:370.56:507:09Waning Gibbous18Thu
19Fri8:173.38:223.92:190.12:220.76:517:07Waning Gibbous19Fri
20Sat9:143.09:113.93:130.13:091.06:527:05Waning Gibbous20Sat
21Sun10:132.810:033.74:100.14:001.26:527:04Third Quarter21Sun
22Mon11:142.610:593.55:090.24:581.36:537:02Third Quarter22Mon
23Tue12:152.46:100.36:021.46:547:01Third Quarter23Tue
24Wed1:162.47:090.37:071.46:556:59Third Quarter24Wed
25Thu12:583.22:152.48:050.38:071.36:566:58Waning Crescent25Thu
26Fri1:583.13:062.58:560.39:021.16:576:56Waning Crescent26Fri
27Sat2:553.13:512.69:420.39:520.96:586:54Waning Crescent27Sat
28Sun3:473.14:302.810:250.310:400.86:586:53Waning Crescent28Sun
29Mon4:353.15:072.911:060.411:250.66:596:51New Moon29Mon
30Tue5:203.05:423.111:450.57:006:50New Moon30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415021)

Common Questions About Blackslough Landing, San Joaquin River, CA Tides

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What time does the tide turn (slack tide) in Blackslough Landing, San Joaquin River, CA today?

Slack tide in Blackslough Landing, San Joaquin River, CA is approximately 9:43 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Blackslough Landing, San Joaquin River, CA?

Blackslough Landing, San Joaquin River, CA is currently in a spring phase. Tonight's moon is 99% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Blackslough Landing, San Joaquin River, CA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Blackslough Landing, San Joaquin River, CA?

Tide predictions for Blackslough Landing, San Joaquin River, CA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Blackslough Landing, San Joaquin River, CA?

Tide data for Blackslough Landing, San Joaquin River, CA is sourced from NOAA Station #9415021. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415021.

What is the moon phase in Blackslough Landing, San Joaquin River, CA tonight?

Tonight the moon over Blackslough Landing, San Joaquin River, CA is Full Moon (99% illuminated). This places Blackslough Landing, San Joaquin River, CA in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA