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 4h 34m at 4:02 am (0.9 ft)
Next high tide : 10:49 am (7.8 ft)
Sunset today : 10:04 pm
Sunrise tomorrow : 5:40 am
Moon phase : Waning Crescent (31% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - May 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:139.18:5510.52:103.02:231.53:417:45Waxing Gibbous1Sun
2Mon9:159.39:3711.03:191.83:191.63:397:47Waxing Gibbous2Mon
3Tue10:109.510:1311.54:080.74:041.73:367:50Waxing Gibbous3Tue
4Wed10:579.710:4611.84:47-0.34:421.83:337:52Full Moon4Wed
5Thu11:399.911:1712.05:23-0.95:182.03:307:55Full Moon5Thu
6Fri12:1710.05:57-1.35:532.23:287:57Full Moon6Fri
7Sat12:539.96:31-1.56:272.53:258:00Full Moon7Sat
8Sun12:1812.11:289.87:06-1.47:032.93:228:02Full Moon8Sun
9Mon12:4911.92:039.57:42-1.17:393.23:208:05Waning Gibbous9Mon
10Tue1:2011.52:409.08:20-0.78:183.63:178:07Waning Gibbous10Tue
11Wed1:5311.03:228.68:59-0.39:004.03:158:10Waning Gibbous11Wed
12Thu2:2910.34:138.39:410.29:474.33:128:12Waning Gibbous12Thu
13Fri3:139.55:148.210:270.810:434.43:108:15Third Quarter13Fri
14Sat4:178.86:158.511:181.311:484.23:078:17Third Quarter14Sat
15Sun5:468.27:079.212:141.73:058:20Third Quarter15Sun
16Mon7:078.27:5410.01:003.51:151.93:028:22Third Quarter16Mon
17Tue8:168.68:3811.12:122.32:162.03:008:25Waning Crescent17Tue
18Wed9:189.29:2112.13:130.73:131.92:588:27Waning Crescent18Wed
19Thu10:169.810:0513.04:05-0.94:051.72:558:29Waning Crescent19Thu
20Fri11:1110.410:5013.84:53-2.34:531.62:538:32New Moon20Fri
21Sat12:0410.85:39-3.45:401.52:518:34New Moon21Sat
22Sun12:5511.06:26-3.96:281.62:498:36New Moon22Sun
23Mon12:2514.21:4411.07:14-4.07:171.72:478:39Waxing Crescent23Mon
24Tue1:1313.82:3410.78:02-3.68:092.02:458:41Waxing Crescent24Tue
25Wed2:0313.03:2710.48:51-2.99:032.32:438:43Waxing Crescent25Wed
26Thu2:5611.84:2510.19:42-1.810:022.72:418:45First Quarter26Thu
27Fri3:5810.55:2610.010:33-0.711:052.92:398:47First Quarter27Fri
28Sat5:139.36:2510.111:270.52:378:49First Quarter28Sat
29Sun6:318.57:1910.312:162.912:251.52:358:51First Quarter29Sun
30Mon7:448.18:0710.61:352.41:262.42:338:53Waxing Gibbous30Mon
31Tue8:508.18:5010.92:491.62:292.92:328:55Waxing Gibbous31Tue
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 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 transitional phase. Tonight's moon is 31% 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 Waning Crescent (31% 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