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

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Upright Head, Lopez Island, WA.
Next low tide : 6:45 pm (7.3 ft)
Next high tide : in 4h 45m at 4:39 pm (7.4 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 - Sep 2092

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:466.56:257.410:57-0.111:414.26:307:51New Moon1Mon
2Tue4:426.56:477.411:340.26:327:49New Moon2Tue
3Wed5:386.57:057.412:183.512:120.86:337:47Waxing Crescent3Wed
4Thu6:366.47:247.312:582.812:511.56:357:45Waxing Crescent4Thu
5Fri7:406.27:467.21:422.11:332.46:367:43Waxing Crescent5Fri
6Sat8:586.08:127.22:301.42:193.46:377:41Waxing Crescent6Sat
7Sun10:356.08:437.13:220.83:094.36:397:39First Quarter7Sun
8Mon12:176.34:180.34:085.26:407:36First Quarter8Mon
9Tue1:416.75:20-0.15:235.76:427:34First Quarter9Tue
10Wed2:447.16:26-0.37:105.96:437:32Waxing Gibbous10Wed
11Thu3:367.47:32-0.58:395.66:447:30Waxing Gibbous11Thu
12Fri12:396.64:197.68:32-0.59:375.16:467:28Waxing Gibbous12Fri
13Sat2:016.54:577.79:25-0.410:234.46:477:26Waxing Gibbous13Sat
14Sun3:166.65:307.610:130.011:053.76:487:24Full Moon14Sun
15Mon4:246.66:007.510:570.511:433.16:507:22Full Moon15Mon
16Tue5:256.66:267.311:371.16:517:20Full Moon16Tue
17Wed6:216.56:487.112:202.512:151.96:537:18Waning Gibbous17Wed
18Thu7:156.47:066.912:562.012:512.66:547:15Waning Gibbous18Thu
19Fri8:136.27:216.71:331.71:293.46:557:13Waning Gibbous19Fri
20Sat9:186.17:376.52:111.42:104.16:577:11Waning Gibbous20Sat
21Sun10:316.17:586.32:521.32:554.76:587:09Third Quarter21Sun
22Mon11:506.28:246.13:371.23:485.27:007:07Third Quarter22Mon
23Tue1:046.44:251.14:565.67:017:05Third Quarter23Tue
24Wed2:026.65:191.17:145.67:037:03Third Quarter24Wed
25Thu2:486.86:191.18:305.47:047:01Third Quarter25Thu
26Fri3:267.07:181.09:075.07:056:58Waning Crescent26Fri
27Sat12:375.63:597.28:100.99:364.57:076:56Waning Crescent27Sat
28Sun1:565.84:267.38:580.910:053.97:086:54Waning Crescent28Sun
29Mon3:056.04:507.39:421.110:353.27:106:52New Moon29Mon
30Tue4:106.35:117.310:251.411:092.37:116:50New Moon30Tue
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 5:42 pm — 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