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 : 9:55 am (-1.2 ft)
Next high tide : in 4h 38m at 3:19 am (11.7 ft)
Sunset today : 10:22 pm
Sunrise tomorrow : 5:23 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - Dec 1968

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:3812.410:439.73:323.64:280.68:262:44Waxing Gibbous1Sun
2Mon10:1112.711:2710.04:133.95:03-0.18:282:43Full Moon2Mon
3Tue10:4312.94:514.15:37-0.68:302:42Full Moon3Tue
4Wed12:0710.211:15 AM12.95:274.36:11-0.88:322:41Full Moon4Wed
5Thu12:4310.311:48 AM12.96:034.56:45-0.88:342:40Full Moon5Thu
6Fri1:1810.312:2112.86:394.77:21-0.68:362:39Full Moon6Fri
7Sat1:5310.112:5512.57:164.97:58-0.48:372:38Waning Gibbous7Sat
8Sun2:299.91:2912.07:555.18:370.08:392:37Waning Gibbous8Sun
9Mon3:099.62:0411.48:385.39:170.48:412:37Waning Gibbous9Mon
10Tue3:539.42:4510.69:255.49:590.98:422:36Waning Gibbous10Tue
11Wed4:459.43:399.710:195.310:441.58:432:36Third Quarter11Wed
12Thu5:399.75:008.911:215.011:332.18:452:35Third Quarter12Thu
13Fri6:2910.36:308.612:304.38:462:35Third Quarter13Fri
14Sat7:1511.27:478.712:282.81:423.18:472:35Waning Crescent14Sat
15Sun8:0012.18:569.21:293.42:491.68:482:35Waning Crescent15Sun
16Mon8:4513.19:599.82:323.73:45-0.18:492:35Waning Crescent16Mon
17Tue9:3114.010:5810.53:313.84:35-1.58:502:35Waning Crescent17Tue
18Wed10:1914.711:5311.04:243.75:23-2.68:512:35New Moon18Wed
19Thu11:0915.15:153.56:10-3.28:522:35New Moon19Thu
20Fri12:4411.411:59 AM15.16:043.36:57-3.48:522:35New Moon20Fri
21Sat1:3311.612:4914.86:553.27:44-3.18:532:36Waxing Crescent21Sat
22Sun2:2011.61:3814.07:463.28:31-2.48:532:36Waxing Crescent22Sun
23Mon3:0811.42:2912.98:403.39:18-1.48:542:37Waxing Crescent23Mon
24Tue3:5811.23:2311.49:353.510:05-0.28:542:38First Quarter24Tue
25Wed4:5111.04:2910.010:353.610:531.28:542:39First Quarter25Wed
26Thu5:4611.05:488.811:403.711:432.58:542:40First Quarter26Thu
27Fri6:3811.17:098.112:543.48:542:41First Quarter27Fri
28Sat7:2711.28:268.012:383.82:152.88:542:42Waxing Gibbous28Sat
29Sun8:1211.49:378.31:414.73:212.08:542:43Waxing Gibbous29Sun
30Mon8:5511.710:368.82:485.24:091.18:532:44Waxing Gibbous30Mon
31Tue9:3711.911:239.23:455.34:470.58:532:46Waxing 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 6:37 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 spring phase. Tonight's moon is 95% 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 (95% 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