Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Johnstone Point, AK.
Next low tide : in 3h 02m at 11:39 am (1.4 ft)
Next high tide : 5:44 pm (11.4 ft)
Sunset today : 10:12 pm
Sunrise tomorrow : 5:32 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - Oct 1963

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:5812.011:0112.84:44-0.45:010.95:515:20Full Moon1Tue
2Wed11:3413.011:4713.35:23-0.95:43-0.45:545:17Full Moon2Wed
3Thu12:1013.86:02-1.06:25-1.45:565:14Full Moon3Thu
4Fri12:3313.312:4614.26:41-0.77:09-2.05:595:11Waning Gibbous4Fri
5Sat1:1913.01:2314.47:220.07:56-2.16:015:08Waning Gibbous5Sat
6Sun2:0712.32:0214.08:051.08:44-1.66:035:05Waning Gibbous6Sun
7Mon2:5911.32:4513.38:522.39:36-0.86:065:02Waning Gibbous7Mon
8Tue4:0210.23:3712.29:433.510:340.26:084:59Third Quarter8Tue
9Wed5:259.44:5111.110:444.711:411.26:114:56Third Quarter9Wed
10Thu6:539.36:2310.411:585.36:134:53Third Quarter10Thu
11Fri8:099.77:4510.41:001.71:315.36:164:50Waning Crescent11Fri
12Sat9:0810.48:5310.72:241.73:004.36:184:47Waning Crescent12Sat
13Sun9:5411.09:4911.13:281.33:563.16:214:44Waning Crescent13Sun
14Mon10:3211.610:3611.54:121.04:381.96:234:41Waning Crescent14Mon
15Tue11:0412.111:1711.64:490.85:131.06:264:38New Moon15Tue
16Wed11:3312.411:5411.75:220.85:470.36:284:35New Moon16Wed
17Thu11:5912.65:531.16:19-0.16:314:32New Moon17Thu
18Fri12:2911.612:2412.76:241.56:52-0.36:334:29New Moon18Fri
19Sat1:0211.412:4912.66:562.17:26-0.26:364:26Waxing Crescent19Sat
20Sun1:3511.01:1412.47:282.88:010.16:394:23Waxing Crescent20Sun
21Mon2:0910.51:4012.08:023.68:380.66:414:20Waxing Crescent21Mon
22Tue2:479.82:0811.58:384.49:191.26:444:17Waxing Crescent22Tue
23Wed3:349.12:4210.89:185.110:061.86:464:14First Quarter23Wed
24Thu4:448.53:2810.010:085.811:022.46:494:12First Quarter24Thu
25Fri6:128.44:579.411:146.26:514:09First Quarter25Fri
26Sat7:238.96:429.412:082.612:346.06:544:06First Quarter26Sat
27Sun8:169.77:579.91:212.41:575.06:574:03Waxing Gibbous27Sun
28Mon9:0110.88:5810.72:281.93:033.56:594:00Waxing Gibbous28Mon
29Tue9:4111.99:5211.63:221.23:541.77:023:58Waxing Gibbous29Tue
30Wed10:1913.010:4312.34:080.64:400.07:043:55Waxing Gibbous30Wed
31Thu10:5714.011:3312.74:510.35:23-1.57:073:52Full Moon31Thu
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 2:41 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 transitional phase. Tonight's moon is 64% 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 Third Quarter (64% 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