Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide (tomorrow) : in 7h 30m at 4:04 am (1.2 ft)
Next high tide (tomorrow) : 9:11 am (6.0 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:47 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Mar 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:379.61:329.88:120.88:30-0.16:386:01Waxing Crescent1Wed
2Thu2:1110.02:298.99:050.49:090.76:376:02Waxing Crescent2Thu
3Fri2:4710.23:327.910:000.29:501.66:366:03Waxing Crescent3Fri
4Sat3:2510.24:467.111:000.110:362.56:346:04Waxing Crescent4Sat
5Sun4:0810.06:186.612:070.26:336:05First Quarter5Sun
6Mon4:599.68:016.71:230.26:316:06First Quarter6Mon
7Tue6:019.19:227.112:563.72:390.26:306:07First Quarter7Tue
8Wed7:128.910:167.52:293.83:460.16:286:08Waxing Gibbous8Wed
9Thu8:218.810:567.83:423.64:400.06:276:09Waxing Gibbous9Thu
10Fri9:218.911:297.94:383.25:23-0.16:256:10Waxing Gibbous10Fri
11Sat10:119.011:578.05:232.85:59-0.16:246:11Waxing Gibbous11Sat
12Sun10:549.06:012.46:290.06:236:12Waxing Gibbous12Sun
13Mon12:218.111:35 AM8.86:372.06:560.26:216:13Full Moon13Mon
14Tue12:428.312:138.67:101.77:210.56:206:14Full Moon14Tue
15Wed1:028.512:528.27:421.47:450.86:186:15Full Moon15Wed
16Thu1:238.71:337.98:151.08:101.36:176:16Full Moon16Thu
17Fri1:448.92:167.48:490.88:361.86:156:17Waning Gibbous17Fri
18Sat2:089.13:066.99:270.69:042.46:146:17Waning Gibbous18Sat
19Sun2:359.24:066.510:100.49:362.96:126:18Waning Gibbous19Sun
20Mon3:099.15:266.111:030.310:153.46:116:19Waning Gibbous20Mon
21Tue3:529.07:106.112:070.36:096:20Third Quarter21Tue
22Wed4:518.98:406.51:220.16:086:21Third Quarter22Wed
23Thu6:068.99:327.012:584.02:35-0.26:066:22Third Quarter23Thu
24Fri7:259.110:097.42:353.73:38-0.56:056:23Waning Crescent24Fri
25Sat8:389.410:428.03:443.14:30-0.86:036:24Waning Crescent25Sat
26Sun9:439.611:138.64:412.45:16-0.86:026:25Waning Crescent26Sun
27Mon10:439.711:459.25:321.65:58-0.66:006:26Waning Crescent27Mon
28Tue11:419.66:210.76:38-0.25:586:27New Moon28Tue
29Wed12:179.712:389.27:090.07:170.45:576:27New Moon29Wed
30Thu12:5010.21:358.77:58-0.57:571.15:556:28New Moon30Thu
31Fri1:2410.42:358.18:47-0.88:381.95:546:29Waxing Crescent31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414549)

Common Questions About Upper Guadalupe Slough, CA Tides

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What time does the tide turn (slack tide) in Upper Guadalupe Slough, CA today?

Slack tide in Upper Guadalupe Slough, CA is approximately 6:37 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 Upper Guadalupe Slough, CA?

Upper Guadalupe Slough, CA is currently in a neap phase. Tonight's moon is 59% 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 minimum.

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 First Quarter (59% illuminated). This places Upper Guadalupe Slough, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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