37.9950’ N, 121.4200’ W

Blackslough Landing, San Joaquin River, CA

74°
H 85°
L 58°
SSW
4mph
Low tide
12:58 pm

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

TIDE TIMES for Friday, August 28, 2026
The tide is currently falling in Blackslough Landing, San Joaquin River, CA.
Next low tide : in 3h 41m at 12:58 pm (0.2 ft)
Next high tide : 6:57 pm (3.0 ft)
Sunset today : 7:41 pm
Sunrise tomorrow : 6:32 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9415021
Common Questions About Tides

Blackslough Landing, San Joaquin River, CA Tides - Mar 1913

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:572.012:113.65:591.77:450.46:375:58Third Quarter1Sat
2Sun2:092.01:123.57:051.78:380.36:365:59Waning Crescent2Sun
3Mon3:042.12:103.58:051.69:250.26:346:00Waning Crescent3Mon
4Tue3:432.33:023.58:591.410:080.26:336:01Waning Crescent4Tue
5Wed4:182.43:483.49:501.210:460.16:316:02Waning Crescent5Wed
6Thu4:512.54:323.310:381.011:230.16:306:03New Moon6Thu
7Fri5:232.65:143.111:230.811:570.26:296:04New Moon7Fri
8Sat5:542.85:563.012:070.66:276:05New Moon8Sat
9Sun6:242.96:392.812:290.312:500.56:266:06New Moon9Sun
10Mon6:533.07:242.612:590.61:330.46:246:07Waxing Crescent10Mon
11Tue7:213.18:132.41:230.82:170.36:236:08Waxing Crescent11Tue
12Wed7:493.39:072.31:371.13:060.36:216:09Waxing Crescent12Wed
13Thu8:233.410:082.11:411.34:030.36:206:10Waxing Crescent13Thu
14Fri9:063.511:152.01:591.55:070.36:186:11First Quarter14Fri
15Sat10:013.62:311.66:130.26:176:12First Quarter15Sat
16Sun12:252.011:09 AM3.63:231.77:140.16:156:13First Quarter16Sun
17Mon1:312.112:253.66:061.78:09-0.16:146:14Waxing Gibbous17Mon
18Tue2:272.21:383.67:381.59:00-0.26:126:15Waxing Gibbous18Tue
19Wed3:132.42:453.68:451.19:46-0.26:106:16Waxing Gibbous19Wed
20Thu3:542.73:453.59:460.710:30-0.16:096:17Waxing Gibbous20Thu
21Fri4:333.04:423.410:430.311:110.06:076:18Full Moon21Fri
22Sat5:123.35:373.211:380.011:510.36:066:19Full Moon22Sat
23Sun5:513.66:313.012:32-0.26:046:19Full Moon23Sun
24Mon6:303.87:262.712:300.51:24-0.36:036:20Waning Gibbous24Mon
25Tue7:123.98:222.51:090.92:17-0.36:016:21Waning Gibbous25Tue
26Wed7:563.89:202.31:491.13:11-0.16:006:22Waning Gibbous26Wed
27Thu8:433.710:202.22:311.44:090.15:586:23Third Quarter27Thu
28Fri9:363.511:232.13:221.65:100.25:576:24Third Quarter28Fri
29Sat10:343.34:311.76:110.35:556:25Third Quarter29Sat
30Sun12:272.011:37 AM3.15:451.67:080.35:546:26Third Quarter30Sun
31Mon1:282.012:413.06:521.57:590.25:526:27Waning Crescent31Mon
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 spring phase. Tonight's moon is 100% 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 (100% 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