Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in Johnstone Point, AK.
Next low tide : in 1h 55m at 4:02 am (0.9 ft)
Next high tide : 10:49 am (7.8 ft)
Sunset today : 10:01 pm
Sunrise tomorrow : 5:42 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - Feb 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:2111.88:068.01:191.58:033:56First Quarter1Tue
2Wed7:3612.09:258.71:035.02:440.88:003:59Waxing Gibbous2Wed
3Thu8:4612.410:279.72:324.93:52-0.37:584:02Waxing Gibbous3Thu
4Fri9:4813.011:1610.63:474.14:43-1.37:564:04Waxing Gibbous4Fri
5Sat10:4413.411:5811.54:443.05:27-2.07:534:07Full Moon5Sat
6Sun11:3413.65:322.06:06-2.37:504:10Full Moon6Sun
7Mon12:3612.112:1913.56:161.36:44-2.27:484:12Full Moon7Mon
8Tue1:1012.51:0013.16:580.87:20-1.77:454:15Waning Gibbous8Tue
9Wed1:4112.61:3812.47:400.67:55-0.97:434:18Waning Gibbous9Wed
10Thu2:1112.52:1511.48:210.78:290.27:404:21Waning Gibbous10Thu
11Fri2:3912.22:5210.39:021.19:041.47:374:23Waning Gibbous11Fri
12Sat3:0811.73:339.19:441.69:392.77:354:26Third Quarter12Sat
13Sun3:4111.14:277.910:312.310:163.97:324:29Third Quarter13Sun
14Mon4:2410.55:517.111:263.011:015.07:294:31Third Quarter14Mon
15Tue5:2810.07:296.912:373.37:264:34Third Quarter15Tue
16Wed6:479.88:527.312:045.92:123.17:244:37Waning Crescent16Wed
17Thu8:0010.09:528.01:356.13:292.27:214:39Waning Crescent17Thu
18Fri9:0010.610:348.93:035.64:131.27:184:42Waning Crescent18Fri
19Sat9:5111.311:099.84:004.64:480.27:154:45Waning Crescent19Sat
20Sun10:3711.911:4010.74:433.55:20-0.77:124:47New Moon20Sun
21Mon11:1812.55:222.35:52-1.37:094:50New Moon21Mon
22Tue12:1111.511:58 AM12.86:001.26:25-1.57:064:53New Moon22Tue
23Wed12:4112.312:3812.86:390.36:59-1.47:044:55New Moon23Wed
24Thu1:1112.91:1712.57:19-0.37:34-0.97:014:58Waxing Crescent24Thu
25Fri1:4113.21:5711.88:02-0.68:11-0.16:585:01Waxing Crescent25Fri
26Sat2:1413.32:4110.88:47-0.68:511.06:555:03Waxing Crescent26Sat
27Sun2:5013.03:349.69:36-0.29:342.26:525:06First Quarter27Sun
28Mon3:3412.54:478.410:320.410:253.56:495:08First Quarter28Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9454319)

Common Questions About Johnstone Point, AK Tides

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

Slack tide in Johnstone Point, AK is approximately 7:25 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 spring phase. Tonight's moon is 20% 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 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 Waning Crescent (20% illuminated). This places Johnstone Point, AK 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