37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

59°
H 88°
L 55°
NW
5mph
High tide
6:51 am

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

TIDE TIMES for Saturday, August 29, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 1:30 pm (0.4 ft)
Next high tide : in 2h 16m at 6:51 am (3.3 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 6:33 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Oct 1911

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:592.26:430.46:261.76:005:50First Quarter1Sun
2Mon12:053.11:522.27:350.37:251.56:015:49Waxing Gibbous2Mon
3Tue1:073.12:362.38:220.28:191.36:025:47Waxing Gibbous3Tue
4Wed2:053.13:142.59:040.29:091.06:035:45Waxing Gibbous4Wed
5Thu2:583.03:492.79:440.29:560.76:045:44Waxing Gibbous5Thu
6Fri3:483.04:223.010:200.210:430.46:055:42Full Moon6Fri
7Sat4:373.04:533.310:560.411:290.16:065:41Full Moon7Sat
8Sun5:262.95:253.511:290.66:065:39Full Moon8Sun
9Mon6:162.95:583.812:16-0.112:010.96:075:38Full Moon9Mon
10Tue7:102.76:333.91:04-0.212:311.26:085:36Waning Gibbous10Tue
11Wed8:072.67:154.01:55-0.21:001.46:095:35Waning Gibbous11Wed
12Thu9:082.48:044.02:50-0.21:311.66:105:34Waning Gibbous12Thu
13Fri10:122.39:033.83:51-0.12:161.86:115:32Third Quarter13Fri
14Sat11:182.310:133.64:55-0.14:041.86:125:31Third Quarter14Sat
15Sun12:222.35:590.05:411.76:135:29Third Quarter15Sun
16Mon1:202.46:570.06:571.46:145:28Waning Crescent16Mon
17Tue12:413.22:092.67:500.08:021.06:155:26Waning Crescent17Tue
18Wed1:503.02:522.88:370.18:590.66:165:25Waning Crescent18Wed
19Thu2:522.93:303.09:200.29:520.36:175:24Waning Crescent19Thu
20Fri3:482.84:073.310:010.310:420.06:185:22New Moon20Fri
21Sat4:402.74:413.410:400.611:28-0.16:195:21New Moon21Sat
22Sun5:282.65:153.611:180.86:205:20New Moon22Sun
23Mon6:162.65:483.612:12-0.211:55 AM1.16:215:18New Moon23Mon
24Tue7:042.56:213.612:56-0.212:321.46:225:17Waxing Crescent24Tue
25Wed7:532.56:543.61:40-0.11:071.66:235:16Waxing Crescent25Wed
26Thu8:442.47:303.42:250.01:401.76:245:15Waxing Crescent26Thu
27Fri9:382.38:123.33:150.12:121.86:255:13Waxing Crescent27Fri
28Sat10:332.29:043.14:080.23:191.86:265:12First Quarter28Sat
29Sun11:292.110:062.85:050.24:501.76:275:11First Quarter29Sun
30Mon12:212.15:590.26:041.56:285:10First Quarter30Mon
31Tue1:092.26:490.17:051.26:295:09First Quarter31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415021)

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

Collapse All
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 97% 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 (97% 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