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 2h 50m 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 - Mar 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:3511.76:277.811:371.011:304.66:465:11First Quarter1Tue
2Wed6:0011.18:008.112:571.46:435:14First Quarter2Wed
3Thu7:2711.09:148.912:545.12:271.06:405:16Waxing Gibbous3Thu
4Fri8:4211.310:099.92:314.73:380.26:375:19Waxing Gibbous4Fri
5Sat9:4511.810:5410.83:453.54:27-0.66:345:21Waxing Gibbous5Sat
6Sun10:3812.311:3111.64:382.25:07-1.16:315:24Full Moon6Sun
7Mon11:2512.55:211.05:43-1.26:285:26Full Moon7Mon
8Tue12:0512.212:0712.46:010.26:17-1.16:255:29Full Moon8Tue
9Wed12:3512.512:4512.26:39-0.36:51-0.66:225:31Full Moon9Wed
10Thu1:0312.71:2111.77:16-0.57:240.16:195:34Waning Gibbous10Thu
11Fri1:2912.61:5410.97:53-0.47:571.06:165:37Waning Gibbous11Fri
12Sat1:5512.32:2810.18:300.08:302.16:135:39Waning Gibbous12Sat
13Sun2:2111.83:059.19:090.79:043.16:105:42Waning Gibbous13Sun
14Mon2:5011.23:508.19:521.59:404.16:075:44Third Quarter14Mon
15Tue3:2510.45:047.210:412.210:255.06:035:47Third Quarter15Tue
16Wed4:199.66:436.911:422.811:275.76:005:49Third Quarter16Wed
17Thu5:519.18:057.31:013.05:575:52Third Quarter17Thu
18Fri7:209.29:038.012:535.82:272.55:545:54Waning Crescent18Fri
19Sat8:289.79:469.02:265.23:261.65:515:57Waning Crescent19Sat
20Sun9:2310.410:2210.03:313.94:070.75:485:59Waning Crescent20Sun
21Mon10:1211.110:5511.14:172.54:43-0.15:456:02Waning Crescent21Mon
22Tue10:5811.811:2812.14:581.05:18-0.65:426:04New Moon22Tue
23Wed11:4112.25:37-0.45:53-0.85:396:07New Moon23Wed
24Thu12:0113.012:2512.36:18-1.46:30-0.65:366:09New Moon24Thu
25Fri12:3413.61:0812.16:59-2.17:08-0.15:336:12Waxing Crescent25Fri
26Sat1:0913.91:5211.57:43-2.47:490.75:296:14Waxing Crescent26Sat
27Sun1:4613.82:3910.78:30-2.18:321.65:266:17Waxing Crescent27Sun
28Mon2:2613.33:359.69:20-1.49:212.75:236:19Waxing Crescent28Mon
29Tue3:1412.34:508.710:15-0.510:173.75:206:22First Quarter29Tue
30Wed4:1911.26:218.311:190.411:264.55:176:24First Quarter30Wed
31Thu5:5010.37:428.612:341.05:146:26First Quarter31Thu
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 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