Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Tuesday, July 14, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 8:19 am (-1.8 ft)
Next high tide : in 2h 22m at 12:15 am (11.9 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 5:57 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - May 1978

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:427.810:028.93:542.13:560.16:127:57Waning Crescent1Mon
2Tue9:567.710:459.34:571.44:510.46:117:58Waning Crescent2Tue
3Wed11:027.811:249.65:500.85:390.76:107:59Waning Crescent3Wed
4Thu12:017.86:370.26:231.16:098:00Waning Crescent4Thu
5Fri12:009.812:557.97:20-0.27:051.56:088:01New Moon5Fri
6Sat12:349.91:457.87:59-0.47:461.96:078:01New Moon6Sat
7Sun1:079.82:327.88:37-0.68:262.26:068:02New Moon7Sun
8Mon1:389.63:197.69:13-0.69:062.66:058:03New Moon8Mon
9Tue2:109.44:047.59:50-0.69:472.86:048:04Waxing Crescent9Tue
10Wed2:449.14:517.310:28-0.410:323.16:038:05Waxing Crescent10Wed
11Thu3:208.75:397.211:08-0.211:243.26:028:06Waxing Crescent11Thu
12Fri4:028.26:307.211:520.06:018:07Waxing Crescent12Fri
13Sat4:507.77:227.212:273.312:410.36:008:08First Quarter13Sat
14Sun5:487.28:107.51:403.21:340.55:598:09First Quarter14Sun
15Mon6:576.78:547.82:522.92:290.75:588:09First Quarter15Mon
16Tue8:126.59:328.23:512.43:230.95:578:10First Quarter16Tue
17Wed9:246.610:088.74:411.84:121.15:578:11Waxing Gibbous17Wed
18Thu10:306.810:439.35:241.24:581.35:568:12Waxing Gibbous18Thu
19Fri11:307.211:199.86:040.55:421.65:558:13Waxing Gibbous19Fri
20Sat12:267.56:45-0.26:261.85:548:14Waxing Gibbous20Sat
21Sun1:207.87:26-0.87:102.15:548:14Full Moon21Sun
22Mon12:3510.62:138.08:09-1.37:572.35:538:15Full Moon22Mon
23Tue1:1710.83:068.28:55-1.68:462.55:528:16Full Moon23Tue
24Wed2:0310.83:598.39:43-1.79:392.75:528:17Waning Gibbous24Wed
25Thu2:5210.54:538.310:33-1.610:392.85:518:18Waning Gibbous25Thu
26Fri3:4510.05:498.411:26-1.311:492.85:518:18Waning Gibbous26Fri
27Sat4:459.26:468.612:22-0.95:508:19Third Quarter27Sat
28Sun5:528.37:428.81:092.61:21-0.45:508:20Third Quarter28Sun
29Mon7:097.68:359.22:302.22:220.25:498:20Third Quarter29Mon
30Tue8:307.19:239.63:431.73:210.75:498:21Third Quarter30Tue
31Wed9:496.910:089.94:451.04:161.25:488:22Waning Crescent31Wed
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 4:17 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 spring phase. Tonight's moon is 1% 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 (1% 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