37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

64°
H 67°
L 46°
SSE
5mph
High tide
12:13 pm

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

TIDE TIMES for Monday, November 2, 2026
The tide is currently rising in Blackslough Landing, San Joaquin River, CA.
Next low tide : 6:08 pm (1.2 ft)
Next high tide : in 21m at 12:13 pm (2.4 ft)
Sunset today : 5:05 pm
Sunrise tomorrow : 6:32 am
Moon phase : Third Quarter (39% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Apr 1789

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:413.410:372.22:061.44:270.15:566:36First Quarter1Wed
2Thu9:403.311:362.23:011.45:270.15:556:37First Quarter2Thu
3Fri10:503.25:001.46:250.05:536:38First Quarter3Fri
4Sat12:342.312:063.16:241.27:190.05:516:38First Quarter4Sat
5Sun1:282.51:193.07:320.98:100.05:506:39Waxing Gibbous5Sun
6Mon2:182.82:273.08:330.58:580.15:496:40Waxing Gibbous6Mon
7Tue3:043.13:283.09:300.29:440.35:476:41Waxing Gibbous7Tue
8Wed3:483.54:253.010:25-0.110:300.55:466:42Full Moon8Wed
9Thu4:313.75:193.011:17-0.311:140.75:446:43Full Moon9Thu
10Fri5:143.96:112.912:08-0.45:436:44Full Moon10Fri
11Sat5:574.07:032.812:58-0.45:416:45Waning Gibbous11Sat
12Sun6:404.07:552.712:441.01:47-0.35:406:46Waning Gibbous12Sun
13Mon7:263.88:472.51:301.22:37-0.25:386:47Waning Gibbous13Mon
14Tue8:133.69:412.42:201.33:29-0.15:376:48Waning Gibbous14Tue
15Wed9:053.310:352.33:151.44:230.15:356:49Third Quarter15Wed
16Thu10:013.011:292.24:181.35:170.15:346:49Third Quarter16Thu
17Fri11:012.75:241.26:100.25:336:50Third Quarter17Fri
18Sat12:212.212:032.56:271.17:000.25:316:51Third Quarter18Sat
19Sun1:102.31:062.47:250.87:470.35:306:52Waning Crescent19Sun
20Mon1:552.52:052.38:180.68:300.45:296:53Waning Crescent20Mon
21Tue2:362.73:002.49:070.49:110.55:276:54Waning Crescent21Tue
22Wed3:142.93:512.49:540.29:510.75:266:55Waning Crescent22Wed
23Thu3:503.24:382.510:380.010:300.95:256:56New Moon23Thu
24Fri4:253.45:242.611:22-0.111:071.05:236:57New Moon24Fri
25Sat4:583.66:092.612:05-0.25:226:58New Moon25Sat
26Sun5:313.76:562.612:48-0.25:216:59New Moon26Sun
27Mon6:053.77:442.512:161.31:32-0.35:207:00Waxing Crescent27Mon
28Tue6:433.78:352.512:501.42:18-0.35:187:00Waxing Crescent28Tue
29Wed7:273.69:282.41:291.53:07-0.35:177:01Waxing Crescent29Wed
30Thu8:193.410:212.42:251.53:59-0.25:167:02Waxing Crescent30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415021)

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

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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 39% 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 (39% 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