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

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 12:07 pm (-0.3 ft)
Next high tide : in 1h 10m at 4:35 am (4.9 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:54 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Mar 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:262.85:173.411:260.96:365:59Full Moon1Sat
2Sun6:022.95:583.312:040.212:100.86:356:00Full Moon2Sun
3Mon6:372.96:403.112:410.212:530.76:336:01Full Moon3Mon
4Tue7:122.97:222.91:160.41:370.66:326:02Waning Gibbous4Tue
5Wed7:473.08:082.61:500.52:220.66:306:03Waning Gibbous5Wed
6Thu8:213.08:572.42:210.73:100.56:296:04Waning Gibbous6Thu
7Fri8:573.09:532.32:481.04:040.56:276:05Waning Gibbous7Fri
8Sat9:363.110:542.13:051.15:030.56:266:06Third Quarter8Sat
9Sun10:243.211:592.13:261.36:040.46:246:07Third Quarter9Sun
10Mon11:223.34:431.47:030.36:236:08Third Quarter10Mon
11Tue1:042.212:263.46:271.57:570.16:216:09Third Quarter11Tue
12Wed2:042.31:323.57:351.48:490.06:206:10Waning Crescent12Wed
13Thu2:572.52:333.78:351.29:37-0.16:186:11Waning Crescent13Thu
14Fri3:432.83:313.79:320.910:24-0.16:176:12Waning Crescent14Fri
15Sat4:273.04:263.710:280.711:09-0.16:156:13New Moon15Sat
16Sun5:103.35:203.711:220.411:530.06:146:14New Moon16Sun
17Mon5:523.56:133.512:160.16:126:14New Moon17Mon
18Tue6:353.67:083.212:360.21:100.06:116:15Waxing Crescent18Tue
19Wed7:203.78:042.91:190.42:05-0.16:096:16Waxing Crescent19Wed
20Thu8:073.79:032.72:040.73:01-0.16:086:17Waxing Crescent20Thu
21Fri8:573.610:032.42:520.94:000.06:066:18First Quarter21Fri
22Sat9:503.511:052.33:461.15:020.16:056:19First Quarter22Sat
23Sun10:473.34:481.36:030.26:036:20First Quarter23Sun
24Mon12:092.211:48 AM3.25:541.37:010.26:026:21First Quarter24Mon
25Tue1:112.212:493.16:571.37:540.26:006:22Waxing Gibbous25Tue
26Wed2:072.31:483.07:541.18:430.25:596:23Waxing Gibbous26Wed
27Thu2:542.42:433.08:481.09:270.25:576:24Waxing Gibbous27Thu
28Fri3:352.63:323.09:370.810:090.25:556:25Waxing Gibbous28Fri
29Sat4:122.74:183.010:230.610:490.35:546:26Full Moon29Sat
30Sun4:472.95:022.911:080.411:270.45:526:27Full Moon30Sun
31Mon5:223.05:442.911:510.35:516:28Full Moon31Mon
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 8:21 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 1% 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 New Moon (1% 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