37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

57°
H -°
L 52°
WNW
7mph
Low tide
8:16 pm

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Saturday, October 10, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 10m at 8:16 pm (0.1 ft)
Next high tide (tomorrow) : 1:54 am (8.4 ft)
Sunset today : 6:38 pm
Sunrise tomorrow : 7:11 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Aug 1824

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:407.05:3610.412:191.011:45 AM2.25:197:22First Quarter1Sun
2Mon7:166.66:3010.41:330.712:482.95:197:21First Quarter2Mon
3Tue8:506.87:2910.32:450.52:023.45:207:20Waxing Gibbous3Tue
4Wed10:037.38:2610.33:490.23:153.65:217:19Waxing Gibbous4Wed
5Thu10:567.79:2010.34:430.04:163.55:227:18Waxing Gibbous5Thu
6Fri11:398.010:0810.35:28-0.25:083.45:237:17Waxing Gibbous6Fri
7Sat12:168.16:08-0.35:533.25:247:16Full Moon7Sat
8Sun12:478.26:42-0.26:333.05:247:15Full Moon8Sun
9Mon1:158.27:13-0.17:102.85:257:14Full Moon9Mon
10Tue12:099.71:398.47:420.07:462.65:267:13Full Moon10Tue
11Wed12:479.32:028.58:090.38:222.45:277:12Full Moon11Wed
12Thu1:258.92:268.78:360.69:002.25:287:11Waning Gibbous12Thu
13Fri2:058.32:529.09:041.19:402.05:297:09Waning Gibbous13Fri
14Sat2:497.73:219.19:341.610:261.85:307:08Waning Gibbous14Sat
15Sun3:417.13:549.310:062.211:201.65:307:07Waning Gibbous15Sun
16Mon4:496.54:349.410:442.75:317:06Third Quarter16Mon
17Tue6:206.15:249.612:241.411:34 AM3.35:327:04Third Quarter17Tue
18Wed8:046.36:239.81:361.112:453.75:337:03Third Quarter18Wed
19Thu9:226.77:2710.12:450.62:073.85:347:02Waning Crescent19Thu
20Fri10:147.38:3010.63:450.13:193.65:357:00Waning Crescent20Fri
21Sat10:547.89:3011.04:37-0.44:193.25:366:59Waning Crescent21Sat
22Sun11:318.310:2711.25:24-0.75:142.75:366:58Waning Crescent22Sun
23Mon12:078.86:08-0.96:062.15:376:56New Moon23Mon
24Tue12:429.46:50-0.86:581.55:386:55New Moon24Tue
25Wed12:1710.91:189.97:30-0.47:501.05:396:54New Moon25Wed
26Thu1:1310.31:5510.38:110.28:440.75:406:52Waxing Crescent26Thu
27Fri2:109.52:3310.68:520.89:400.55:416:51Waxing Crescent27Fri
28Sat3:118.63:1510.69:361.610:400.45:426:49Waxing Crescent28Sat
29Sun4:207.84:0010.410:242.411:460.55:426:48First Quarter29Sun
30Mon5:407.24:5310.111:223.05:436:47First Quarter30Mon
31Tue7:137.15:539.812:580.612:373.55:446:45First Quarter31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414549)

Common Questions About Upper Guadalupe Slough, CA Tides

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Is this week a spring tide or neap tide in Upper Guadalupe Slough, CA?

Upper Guadalupe Slough, CA is currently in a spring phase. Tonight's moon is 0% 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 Upper Guadalupe Slough, 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 Upper Guadalupe Slough, CA?

Tide predictions for Upper Guadalupe Slough, 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 Upper Guadalupe Slough, CA?

Tide data for Upper Guadalupe Slough, CA is sourced from NOAA Station #9414549. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414549.

What is the moon phase in Upper Guadalupe Slough, CA tonight?

Tonight the moon over Upper Guadalupe Slough, CA is New Moon (0% illuminated). This places Upper Guadalupe Slough, 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