Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Saturday, August 1, 2026
The tide is currently rising in Johnstone Point, AK.
Next low tide : 10:10 pm (1.6 ft)
Next high tide : in 1h 59m at 4:12 pm (11.0 ft)
Sunset today : 10:20 pm
Sunrise tomorrow : 5:25 am
Moon phase : Waning Gibbous (90% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - Aug 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:157.38:2610.52:462.12:185.63:238:21Waning Crescent1Tue
2Wed10:168.09:2011.13:471.23:285.23:258:19Waning Crescent2Wed
3Thu11:058.710:1111.84:330.14:214.63:288:16Waning Crescent3Thu
4Fri11:469.410:5912.55:14-1.05:073.73:308:14New Moon4Fri
5Sat12:2310.15:52-1.85:502.83:338:11New Moon5Sat
6Sun12:5910.86:30-2.46:332.03:358:08New Moon6Sun
7Mon12:2913.31:3311.37:09-2.77:171.33:388:06Waxing Crescent7Mon
8Tue1:1213.12:0711.87:47-2.58:030.83:408:03Waxing Crescent8Tue
9Wed1:5612.52:4212.08:27-1.88:510.53:438:00Waxing Crescent9Wed
10Thu2:4311.53:2012.19:07-0.89:430.53:457:57Waxing Crescent10Thu
11Fri3:3710.34:0412.09:490.610:380.73:487:55First Quarter11Fri
12Sat4:469.04:5711.710:362.211:421.03:507:52First Quarter12Sat
13Sun6:138.16:0211.411:303.63:537:49First Quarter13Sun
14Mon7:447.97:1311.312:561.212:394.83:557:46Waxing Gibbous14Mon
15Tue9:078.38:2311.42:230.92:045.23:577:43Waxing Gibbous15Tue
16Wed10:159.09:2711.83:390.23:264.84:007:40Waxing Gibbous16Wed
17Thu11:089.710:2412.14:33-0.54:264.04:027:38Waxing Gibbous17Thu
18Fri11:5010.311:1312.45:16-1.15:133.14:057:35Full Moon18Fri
19Sat12:2510.75:54-1.45:542.44:077:32Full Moon19Sat
20Sun12:5611.06:29-1.56:331.84:107:29Full Moon20Sun
21Mon12:3312.31:2311.27:02-1.37:101.54:127:26Full Moon21Mon
22Tue1:0812.01:4911.37:33-0.87:471.34:157:23Waning Gibbous22Tue
23Wed1:4111.42:1311.38:050.08:241.34:177:20Waning Gibbous23Wed
24Thu2:1410.62:3811.18:351.09:021.54:207:17Waning Gibbous24Thu
25Fri2:489.73:0310.99:062.19:431.94:227:14Waning Gibbous25Fri
26Sat3:288.73:3310.59:383.210:282.34:257:11Third Quarter26Sat
27Sun4:237.84:1410.110:134.411:222.84:277:08Third Quarter27Sun
28Mon5:557.15:189.710:585.44:297:05Third Quarter28Mon
29Tue7:357.06:429.712:313.012:076.14:327:02Third Quarter29Tue
30Wed8:557.57:5710.21:582.71:446.34:346:59Waning Crescent30Wed
31Thu9:538.49:0011.03:161.73:085.54:376:56Waning Crescent31Thu
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 7:11 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 90% 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 Gibbous (90% 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