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

TIDE TIMES for Monday, July 6, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide (tomorrow) : 6:26 am (0.9 ft)
Next high tide : in 4h 14m at 11:33 pm (3.1 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:49 am
Moon phase : Third Quarter (61% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Aug 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:343.59:273.52:490.93:130.26:098:14Waning Gibbous1Mon
2Tue9:353.010:123.63:520.73:520.56:108:13Waning Gibbous2Tue
3Wed10:402.610:593.84:570.64:330.96:108:12Third Quarter3Wed
4Thu11:492.311:483.96:040.55:181.26:118:11Third Quarter4Thu
5Fri1:012.27:090.46:121.56:128:10Third Quarter5Fri
6Sat12:414.02:172.18:120.47:141.86:138:09Waning Crescent6Sat
7Sun1:374.13:302.29:090.48:151.96:148:08Waning Crescent7Sun
8Mon2:334.14:282.410:020.49:141.96:158:07Waning Crescent8Mon
9Tue3:274.15:112.510:500.310:081.96:168:06Waning Crescent9Tue
10Wed4:174.15:472.611:330.310:591.76:168:04New Moon10Wed
11Thu5:024.16:222.712:140.26:178:03New Moon11Thu
12Fri5:443.96:572.712:520.26:188:02New Moon12Fri
13Sat6:253.77:312.812:361.41:280.26:198:01New Moon13Sat
14Sun7:063.48:042.91:221.22:020.36:207:59Waxing Crescent14Sun
15Mon7:483.18:373.02:081.12:340.56:217:58Waxing Crescent15Mon
16Tue8:322.99:093.12:551.03:020.76:227:57Waxing Crescent16Tue
17Wed9:212.69:413.23:430.93:241.06:237:56Waxing Crescent17Wed
18Thu10:172.410:143.34:370.83:311.36:237:54First Quarter18Thu
19Fri11:202.310:543.55:360.83:361.56:247:53First Quarter19Fri
20Sat12:302.26:400.74:021.76:257:52First Quarter20Sat
21Sun1:432.27:420.64:471.96:267:50First Quarter21Sun
22Mon12:413.92:522.38:400.46:102.06:277:49Waxing Gibbous22Mon
23Tue1:464.03:502.49:340.38:291.96:287:48Waxing Gibbous23Tue
24Wed2:514.24:382.510:240.19:401.76:297:46Waxing Gibbous24Wed
25Thu3:514.25:202.711:11-0.110:431.46:297:45Waxing Gibbous25Thu
26Fri4:484.26:003.011:55-0.111:431.16:307:43Full Moon26Fri
27Sat5:434.16:393.212:370.06:317:42Full Moon27Sat
28Sun6:373.87:193.512:410.71:170.16:327:40Full Moon28Sun
29Mon7:333.58:003.71:390.41:560.46:337:39Waning Gibbous29Mon
30Tue8:303.18:423.82:350.32:350.76:347:37Waning Gibbous30Tue
31Wed9:302.89:283.93:330.23:141.06:357:36Waning Gibbous31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415021)

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

Show All
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 2:59 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 transitional phase. Tonight's moon is 61% 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 shifting between spring and neap.

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 Third Quarter (61% illuminated). This places Blackslough Landing, San Joaquin River, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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