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

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 5h 45m at 6:41 pm (0.6 ft)
Next high tide (tomorrow) : 1:05 am (3.3 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:43 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Apr 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:352.85:572.712:010.36:507:28Full Moon1Sun
2Mon6:063.06:412.612:110.512:440.16:497:29Full Moon2Mon
3Tue6:373.27:252.612:450.71:260.06:477:30Full Moon3Tue
4Wed7:063.38:112.51:170.92:070.06:467:31Waning Gibbous4Wed
5Thu7:343.48:582.41:461.22:490.06:447:32Waning Gibbous5Thu
6Fri8:033.49:482.32:071.43:350.16:437:33Waning Gibbous6Fri
7Sat8:363.410:422.22:111.54:240.26:417:33Waning Gibbous7Sat
8Sun9:163.311:392.12:231.65:200.26:407:34Waning Gibbous8Sun
9Mon10:073.32:561.66:200.16:387:35Third Quarter9Mon
10Tue12:392.011:09 AM3.13:501.67:170.16:377:36Third Quarter10Tue
11Wed1:352.012:243.06:471.68:100.06:357:37Third Quarter11Wed
12Thu2:262.11:422.98:061.28:58-0.16:347:38Waning Crescent12Thu
13Fri3:112.42:552.89:090.89:420.06:327:39Waning Crescent13Fri
14Sat3:512.74:012.810:070.410:240.26:317:40Waning Crescent14Sat
15Sun4:303.15:022.811:020.011:050.46:307:41Waning Crescent15Sun
16Mon5:083.55:592.811:55-0.411:460.76:287:42New Moon16Mon
17Tue5:483.96:552.812:48-0.66:277:43New Moon17Tue
18Wed6:284.27:512.712:271.01:40-0.76:257:44New Moon18Wed
19Thu7:124.38:472.61:091.22:32-0.66:247:45Waxing Crescent19Thu
20Fri7:584.29:442.51:531.43:26-0.56:237:45Waxing Crescent20Fri
21Sat8:494.010:432.32:431.64:21-0.36:217:46Waxing Crescent21Sat
22Sun9:453.711:422.23:421.65:19-0.16:207:47First Quarter22Sun
23Mon10:473.44:551.66:180.06:197:48First Quarter23Mon
24Tue12:412.211:52 AM3.06:121.57:130.16:177:49First Quarter24Tue
25Wed1:362.212:592.77:231.28:040.16:167:50First Quarter25Wed
26Thu2:242.32:062.48:270.98:490.26:157:51Waxing Gibbous26Thu
27Fri3:062.53:082.39:220.69:310.36:147:52Waxing Gibbous27Fri
28Sat3:432.64:052.210:120.310:110.56:127:53Waxing Gibbous28Sat
29Sun4:182.94:572.310:580.110:480.76:117:54Waxing Gibbous29Sun
30Mon4:513.15:452.311:42-0.111:250.96:107:55Full Moon30Mon
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 9:53 pm — 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 neap phase. Tonight's moon is 59% 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 minimum.

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 First Quarter (59% illuminated). This places Blackslough Landing, San Joaquin River, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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