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

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide (tomorrow) : in 21m at 9:43 pm (1.7 ft)
Next high tide : 3:58 am (4.0 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:44 am
Moon phase : Waxing Gibbous (91% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Apr 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:232.53:143.09:230.99:580.15:496:29Waning Crescent1Sat
2Sun5:012.75:033.111:110.611:380.26:487:29Waning Crescent2Sun
3Mon5:372.95:513.111:570.46:467:30New Moon3Mon
4Tue6:123.16:383.012:160.312:430.26:457:31New Moon4Tue
5Wed6:473.47:282.912:530.51:300.06:437:32New Moon5Wed
6Thu7:223.58:202.81:290.72:18-0.26:427:33Waxing Crescent6Thu
7Fri8:003.69:162.62:050.93:08-0.26:407:34Waxing Crescent7Fri
8Sat8:433.710:152.52:421.14:03-0.26:397:35Waxing Crescent8Sat
9Sun9:333.711:172.43:251.35:03-0.26:377:36Waxing Crescent9Sun
10Mon10:313.64:251.46:05-0.16:367:37First Quarter10Mon
11Tue12:202.311:37 AM3.45:461.57:07-0.16:347:38First Quarter11Tue
12Wed1:232.312:483.37:041.48:06-0.16:337:39First Quarter12Wed
13Thu2:222.41:593.18:131.28:590.06:317:40Waxing Gibbous13Thu
14Fri3:152.63:053.09:150.99:490.06:307:41Waxing Gibbous14Fri
15Sat4:012.84:063.010:120.610:350.16:297:41Waxing Gibbous15Sat
16Sun4:433.05:002.911:040.311:180.36:277:42Waxing Gibbous16Sun
17Mon5:223.25:512.811:540.16:267:43Full Moon17Mon
18Tue6:003.46:392.812:000.412:41-0.16:247:44Full Moon18Tue
19Wed6:363.57:262.712:410.61:25-0.16:237:45Full Moon19Wed
20Thu7:113.58:142.61:200.92:09-0.26:227:46Waning Gibbous20Thu
21Fri7:463.49:022.51:591.12:54-0.16:207:47Waning Gibbous21Fri
22Sat8:223.39:522.42:381.23:39-0.16:197:48Waning Gibbous22Sat
23Sun9:003.210:442.33:191.44:280.06:187:49Waning Gibbous23Sun
24Mon9:423.111:372.24:051.55:200.16:177:50Third Quarter24Mon
25Tue10:322.95:051.56:140.16:157:51Third Quarter25Tue
26Wed12:312.111:32 AM2.76:141.57:080.16:147:52Third Quarter26Wed
27Thu1:242.212:382.67:201.37:590.16:137:53Third Quarter27Thu
28Fri2:132.31:452.58:191.18:460.26:127:54Third Quarter28Fri
29Sat2:582.42:492.59:120.89:300.26:107:54Waning Crescent29Sat
30Sun3:392.73:482.610:020.510:110.36:097:55Waning Crescent30Sun
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 12:50 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 91% 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 Waxing Gibbous (91% 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