Tides Today & Tomorrow in Upright Head, Lopez Island, WA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Upright Head, Lopez Island, WA.
Next low tide : 8:24 am (-2.1 ft)
Next high tide (tomorrow) : in 1h 45m at 11:20 pm (8.0 ft)
Sunset today : 8:38 pm
Sunrise tomorrow : 5:55 am
Moon phase : Waning Crescent (21% illuminated)
Tide Station Location : Station #9449911
Common Questions About Tides

Upright Head, Lopez Island, WA Tides - May 2093

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:326.04:255.93:090.05:498:27First Quarter1Fri
2Sat12:027.33:550.45:488:28First Quarter2Sat
3Sun12:517.34:440.85:468:30First Quarter3Sun
4Mon1:317.45:381.25:448:31First Quarter4Mon
5Tue2:037.311:42 AM4.48:564.16:361.75:438:33Waxing Gibbous5Tue
6Wed2:297.31:544.69:103.47:352.25:418:34Waxing Gibbous6Wed
7Thu2:497.33:215.19:302.58:302.75:408:36Waxing Gibbous7Thu
8Fri3:067.34:315.89:551.49:243.35:388:37Waxing Gibbous8Fri
9Sat3:257.35:326.510:260.410:174.05:378:38Full Moon9Sat
10Sun3:487.36:287.211:01-0.611:094.65:358:40Full Moon10Sun
11Mon4:157.37:237.711:39-1.55:348:41Full Moon11Mon
12Tue4:457.38:208.112:025.312:20-2.05:338:42Waning Gibbous12Tue
13Wed5:187.39:198.412:595.81:05-2.35:318:44Waning Gibbous13Wed
14Thu5:537.110:188.52:056.21:52-2.25:308:45Waning Gibbous14Thu
15Fri6:306.711:158.53:276.32:43-1.85:298:46Waning Gibbous15Fri
16Sat7:156.15:056.03:37-1.15:278:48Third Quarter16Sat
17Sun12:078.44:31-0.25:268:49Third Quarter17Sun
18Mon12:538.310:20 AM4.67:414.35:290.85:258:50Third Quarter18Mon
19Tue1:318.11:074.58:233.36:311.95:248:52Waning Crescent19Tue
20Wed2:047.92:484.99:012.27:352.85:238:53Waning Crescent20Wed
21Thu2:327.84:065.59:361.28:353.75:228:54Waning Crescent21Thu
22Fri2:567.65:116.110:090.39:314.45:218:55Waning Crescent22Fri
23Sat3:157.46:056.710:41-0.410:255.05:208:56New Moon23Sat
24Sun3:327.26:547.211:11-0.911:175.55:198:58New Moon24Sun
25Mon3:517.17:397.511:41-1.15:188:59New Moon25Mon
26Tue4:146.98:247.712:075.912:11-1.35:179:00New Moon26Tue
27Wed4:386.79:097.91:016.112:43-1.25:169:01Waxing Crescent27Wed
28Thu5:016.59:547.92:066.21:16-1.15:159:02Waxing Crescent28Thu
29Fri10:387.91:52-0.85:159:03Waxing Crescent29Fri
30Sat11:207.92:31-0.45:149:04Waxing Crescent30Sat
31Sun11:577.83:110.15:139:05First Quarter31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9449911)

Common Questions About Upright Head, Lopez Island, WA Tides

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What time does the tide turn (slack tide) in Upright Head, Lopez Island, WA today?

Slack tide in Upright Head, Lopez Island, WA is approximately 3:52 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 Upright Head, Lopez Island, WA?

Upright Head, Lopez Island, WA is currently in a transitional phase. Tonight's moon is 21% 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 Upright Head, Lopez Island, WA 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 Upright Head, Lopez Island, WA?

Tide predictions for Upright Head, Lopez Island, WA 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 Upright Head, Lopez Island, WA?

Tide data for Upright Head, Lopez Island, WA is sourced from NOAA Station #9449911. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9449911.

What is the moon phase in Upright Head, Lopez Island, WA tonight?

Tonight the moon over Upright Head, Lopez Island, WA is Waning Crescent (21% illuminated). This places Upright Head, Lopez Island, WA 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