Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Saturday, August 22, 2026
The tide is currently falling in Johnstone Point, AK.
Next low tide : in 3h 59m at 4:12 am (2.8 ft)
Next high tide : 11:03 am (7.4 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 - Jul 1928

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:549.011:0311.85:26-0.75:133.82:239:17Full Moon1Sun
2Mon12:339.36:01-1.25:523.62:249:16Full Moon2Mon
3Tue1:109.56:38-1.56:313.52:259:15Full Moon3Tue
4Wed12:1912.11:469.77:14-1.77:103.32:269:14Full Moon4Wed
5Thu12:5612.02:229.77:52-1.87:523.22:289:13Waning Gibbous5Thu
6Fri1:3311.82:599.78:31-1.78:373.12:299:12Waning Gibbous6Fri
7Sat2:1311.33:399.89:11-1.39:253.02:319:11Waning Gibbous7Sat
8Sun2:5810.54:2310.09:52-0.710:182.82:329:09Third Quarter8Sun
9Mon3:549.65:1310.310:370.211:172.42:349:08Third Quarter9Mon
10Tue5:108.76:0610.711:261.22:369:06Third Quarter10Tue
11Wed6:358.17:0011.312:241.912:222.22:389:05Third Quarter11Wed
12Thu7:558.17:5411.91:361.11:273.02:399:03Waning Crescent12Thu
13Fri9:098.58:4912.62:490.02:373.42:419:02Waning Crescent13Fri
14Sat10:179.19:4313.13:52-1.23:423.32:439:00Waning Crescent14Sat
15Sun11:179.710:3813.54:45-2.24:393.02:458:58New Moon15Sun
16Mon12:1010.35:34-2.95:312.62:478:56New Moon16Mon
17Tue12:5710.76:20-3.26:202.32:498:54New Moon17Tue
18Wed12:2013.61:4010.97:04-3.17:082.12:528:53Waxing Crescent18Wed
19Thu1:0713.22:2010.97:47-2.77:562.02:548:51Waxing Crescent19Thu
20Fri1:5112.42:5910.88:29-2.08:432.12:568:48Waxing Crescent20Fri
21Sat2:3511.43:3810.59:09-1.19:312.32:588:46Waxing Crescent21Sat
22Sun3:2010.24:1910.29:490.110:212.53:008:44First Quarter22Sun
23Mon4:129.05:0310.010:291.411:152.83:038:42First Quarter23Mon
24Tue5:187.95:519.811:122.63:058:40First Quarter24Tue
25Wed6:347.36:429.812:162.912:003.83:078:37First Quarter25Wed
26Thu7:507.17:3310.01:282.812:594.63:108:35Waxing Gibbous26Thu
27Fri9:007.48:2410.32:452.22:115.13:128:33Waxing Gibbous27Fri
28Sat10:027.99:1310.73:441.43:185.03:148:30Waxing Gibbous28Sat
29Sun10:538.510:0111.24:280.64:114.63:178:28Waxing Gibbous29Sun
30Mon11:359.110:4511.85:06-0.24:554.13:198:25Full Moon30Mon
31Tue12:129.65:42-0.95:353.53:218:23Full Moon31Tue
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 7:37 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