Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Johnstone Point, AK.
Next low tide : 5:10 pm (4.6 ft)
Next high tide : in 2h 16m at 11:59 am (8.7 ft)
Sunset today : 9:58 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - Apr 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:3810.06:077.110:591.910:515.75:096:31First Quarter1Tue
2Wed4:529.07:407.212:082.65:066:33First Quarter2Wed
3Thu6:368.68:457.712:106.11:392.75:036:36First Quarter3Thu
4Fri7:558.89:278.41:585.72:572.24:596:38Waxing Gibbous4Fri
5Sat8:559.29:599.33:184.63:421.64:566:41Waxing Gibbous5Sat
6Sun9:449.810:2710.14:023.34:161.04:536:43Waxing Gibbous6Sun
7Mon10:2710.310:5410.94:372.04:460.74:506:46Waxing Gibbous7Mon
8Tue11:0810.711:2111.75:090.75:160.54:476:48Full Moon8Tue
9Wed11:4710.911:4912.35:42-0.35:470.64:446:51Full Moon9Wed
10Thu12:2511.06:17-1.16:190.94:416:53Full Moon10Thu
11Fri12:1612.81:0410.96:53-1.76:531.44:386:56Full Moon11Fri
12Sat12:4613.11:4310.47:32-1.97:292.14:356:58Waning Gibbous12Sat
13Sun1:1713.12:269.88:14-1.78:092.84:327:01Waning Gibbous13Sun
14Mon1:5212.73:179.09:01-1.38:543.64:297:03Waning Gibbous14Mon
15Tue2:3412.04:288.29:54-0.69:494.34:267:06Third Quarter15Tue
16Wed3:2911.15:578.010:540.110:574.84:237:08Third Quarter16Wed
17Thu4:5610.17:158.412:040.64:207:11Third Quarter17Thu
18Fri6:389.78:169.312:204.71:200.74:177:13Third Quarter18Fri
19Sat8:009.99:0510.41:513.82:320.54:147:16Waning Crescent19Sat
20Sun9:0710.39:4811.43:082.33:280.24:117:18Waning Crescent20Sun
21Mon10:0510.710:2612.34:030.64:140.14:087:21Waning Crescent21Mon
22Tue10:5810.911:0312.94:49-0.94:550.34:057:24New Moon22Tue
23Wed11:4611.011:3813.35:31-1.95:340.64:027:26New Moon23Wed
24Thu12:3110.96:10-2.46:111.23:597:29New Moon24Thu
25Fri12:1113.31:1310.66:50-2.56:491.93:567:31New Moon25Fri
26Sat12:4413.01:5310.17:29-2.17:282.73:547:34Waxing Crescent26Sat
27Sun1:1712.52:339.48:10-1.58:073.43:517:36Waxing Crescent27Sun
28Mon1:5011.73:178.68:52-0.68:494.23:487:39Waxing Crescent28Mon
29Tue2:2510.84:137.99:370.39:364.83:457:41Waxing Crescent29Tue
30Wed3:089.85:267.510:261.110:315.23:427:44First Quarter30Wed
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 2:34 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 Johnstone Point, AK?

Johnstone Point, AK is currently in a spring phase. Tonight's moon is 12% 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 (12% 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