Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Saturday, August 22, 2026
The tide is currently rising in Johnstone Point, AK.
Next low tide (tomorrow) : 5:32 am (2.1 ft)
Next high tide : in 4h 16m at 9:57 pm (9.7 ft)
Sunset today : 9:21 pm
Sunrise tomorrow : 6:17 am
Moon phase : Waxing Gibbous (75% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - Sep 1926

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:448.58:0910.51:532.01:525.34:396:53Waning Crescent1Wed
2Thu9:499.09:0910.83:141.63:164.94:416:50Waning Crescent2Thu
3Fri10:379.610:0011.24:081.04:104.14:446:47Waning Crescent3Fri
4Sat11:1410.110:4411.64:470.44:513.34:466:44Waning Crescent4Sat
5Sun11:4410.511:2311.95:200.05:262.64:496:41New Moon5Sun
6Mon12:1210.95:51-0.35:591.94:516:38New Moon6Mon
7Tue12:3811.36:21-0.46:331.54:536:35New Moon7Tue
8Wed12:3112.01:0311.56:51-0.27:061.14:566:32New Moon8Wed
9Thu1:0411.81:2811.67:220.17:411.04:586:28Waxing Crescent9Thu
10Fri1:3511.41:5211.67:530.78:161.05:016:25Waxing Crescent10Fri
11Sat2:0810.82:1711.58:251.58:551.25:036:22Waxing Crescent11Sat
12Sun2:4410.02:4511.38:592.49:371.55:056:19Waxing Crescent12Sun
13Mon3:289.23:2011.09:363.410:271.95:086:16First Quarter13Mon
14Tue4:358.34:1210.510:224.411:282.25:106:13First Quarter14Tue
15Wed6:137.95:3410.311:235.15:136:10First Quarter15Wed
16Thu7:418.27:0410.512:422.112:445.45:156:07First Quarter16Thu
17Fri8:499.08:1811.32:031.52:114.95:176:04Waxing Gibbous17Fri
18Sat9:4310.19:2112.23:140.53:233.75:206:01Waxing Gibbous18Sat
19Sun10:3011.210:1813.04:08-0.64:192.15:225:57Waxing Gibbous19Sun
20Mon11:1212.311:1113.74:53-1.55:070.65:255:54Full Moon20Mon
21Tue11:5213.25:36-2.05:53-0.65:275:51Full Moon21Tue
22Wed12:0013.912:3113.86:17-1.96:39-1.45:295:48Full Moon22Wed
23Thu12:4813.71:0914.16:58-1.47:24-1.85:325:45Waning Gibbous23Thu
24Fri1:3513.11:4613.97:40-0.48:11-1.65:345:42Waning Gibbous24Fri
25Sat2:2212.12:2413.48:220.88:59-0.95:375:39Waning Gibbous25Sat
26Sun3:1310.93:0412.59:062.39:490.05:395:36Third Quarter26Sun
27Mon4:149.73:5211.49:543.710:441.15:415:33Third Quarter27Mon
28Tue5:358.85:0010.410:504.911:492.15:445:30Third Quarter28Tue
29Wed7:058.66:269.812:005.85:465:26Third Quarter29Wed
30Thu8:228.97:449.71:102.61:345.95:495:23Waning Crescent30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9454319)

Common Questions About Johnstone Point, AK Tides

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What time does the tide turn (slack tide) in Johnstone Point, AK today?

Slack tide in Johnstone Point, AK is approximately 1:44 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 Johnstone Point, AK?

Johnstone Point, AK is currently in a transitional phase. Tonight's moon is 75% 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 Johnstone Point, AK 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 Johnstone Point, AK?

Tide predictions for Johnstone Point, AK 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 Johnstone Point, AK?

Tide data for Johnstone Point, AK is sourced from NOAA Station #9454319. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9454319.

What is the moon phase in Johnstone Point, AK tonight?

Tonight the moon over Johnstone Point, AK is Waxing Gibbous (75% illuminated). This places Johnstone Point, AK 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