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

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 4:25 pm (-0.2 ft)
Next high tide : in 1h 11m at 9:18 am (3.5 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:43 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Oct 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:563.36:143.512:160.47:016:49New Moon1Mon
2Tue6:443.26:533.612:470.212:580.67:026:47New Moon2Tue
3Wed7:323.07:323.61:350.11:390.87:036:46Waxing Crescent3Wed
4Thu8:212.98:103.52:210.12:201.07:046:44Waxing Crescent4Thu
5Fri9:112.78:513.43:080.23:011.27:056:42Waxing Crescent5Fri
6Sat10:032.59:343.23:570.23:461.37:066:41Waxing Crescent6Sat
7Sun10:572.410:223.14:490.34:381.47:066:39First Quarter7Sun
8Mon11:522.311:162.95:440.35:401.57:076:38First Quarter8Mon
9Tue12:492.26:400.46:441.47:086:37First Quarter9Tue
10Wed12:162.81:432.37:340.37:441.37:096:35First Quarter10Wed
11Thu1:182.82:332.48:240.38:391.17:106:34Waxing Gibbous11Thu
12Fri2:182.83:192.69:110.39:290.97:116:32Waxing Gibbous12Fri
13Sat3:142.84:002.89:540.310:170.77:126:31Waxing Gibbous13Sat
14Sun4:072.94:383.010:350.311:030.47:136:29Waxing Gibbous14Sun
15Mon4:562.95:143.311:150.411:490.27:146:28Full Moon15Mon
16Tue5:443.05:503.511:530.67:156:27Full Moon16Tue
17Wed6:333.06:253.712:350.012:310.87:166:25Full Moon17Wed
18Thu7:222.97:033.81:21-0.11:101.07:176:24Full Moon18Thu
19Fri8:152.87:443.92:09-0.21:491.17:186:22Waning Gibbous19Fri
20Sat9:102.78:303.83:00-0.32:331.37:196:21Waning Gibbous20Sat
21Sun10:092.69:243.73:54-0.23:261.47:206:20Waning Gibbous21Sun
22Mon11:092.510:263.54:52-0.24:361.57:216:18Third Quarter22Mon
23Tue12:092.55:52-0.15:541.47:226:17Third Quarter23Tue
24Wed1:082.66:520.07:071.27:236:16Third Quarter24Wed
25Thu12:463.12:032.77:480.08:130.97:246:15Waning Crescent25Thu
26Fri1:552.92:542.98:400.19:120.67:256:13Waning Crescent26Fri
27Sat3:012.83:403.19:290.210:070.47:266:12Waning Crescent27Sat
28Sun4:012.84:233.310:150.310:570.17:276:11Waning Crescent28Sun
29Mon4:552.85:033.510:590.511:450.07:286:10New Moon29Mon
30Tue5:452.85:413.611:410.77:296:09New Moon30Tue
31Wed6:322.76:183.712:31-0.112:230.97:306:08New Moon31Wed
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 12:51 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 transitional phase. Tonight's moon is 28% 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 Waxing Crescent (28% 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