Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Sunday, August 23, 2026
The tide is currently rising in Johnstone Point, AK.
Next low tide : 5:32 am (2.1 ft)
Next high tide (tomorrow) : in 1h 14m at 9:57 pm (9.7 ft)
Sunset today : 9:21 pm
Sunrise tomorrow : 6:17 am
Moon phase : Waxing Gibbous (75% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - May 1926

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:3612.52:499.78:34-1.78:352.83:417:45Waning Gibbous1Sat
2Sun2:1412.13:459.09:22-1.29:243.53:397:47Waning Gibbous2Sun
3Mon2:5911.35:008.610:16-0.610:234.13:367:50Third Quarter3Mon
4Tue4:0310.46:208.611:160.011:334.33:337:52Third Quarter4Tue
5Wed5:379.77:299.212:250.43:307:55Third Quarter5Wed
6Thu7:089.68:2510.112:554.01:370.53:287:57Waning Crescent6Thu
7Fri8:229.99:1411.12:182.92:450.33:258:00Waning Crescent7Fri
8Sat9:2610.39:5812.03:261.33:400.13:228:02Waning Crescent8Sat
9Sun10:2410.810:3912.74:19-0.24:270.03:208:05Waning Crescent9Sun
10Mon11:1711.011:1813.25:04-1.55:100.13:178:07New Moon10Mon
11Tue12:0511.15:47-2.45:510.53:158:10New Moon11Tue
12Wed12:5111.06:28-2.86:311.13:128:12New Moon12Wed
13Thu12:3113.21:3410.77:09-2.77:121.83:098:15Waxing Crescent13Thu
14Fri1:0612.82:1610.17:50-2.37:532.63:078:17Waxing Crescent14Fri
15Sat1:4112.12:599.58:32-1.68:363.33:058:20Waxing Crescent15Sat
16Sun2:1611.33:498.89:16-0.79:214.13:028:22Waxing Crescent16Sun
17Mon2:5610.34:498.310:020.210:124.63:008:25First Quarter17Mon
18Tue3:479.25:578.110:521.111:125.02:578:27First Quarter18Tue
19Wed5:028.46:598.311:471.72:558:29First Quarter19Wed
20Thu6:277.97:508.712:244.912:492.12:538:32First Quarter20Thu
21Fri7:388.08:329.31:454.31:532.32:518:34Waxing Gibbous21Fri
22Sat8:378.39:0910.12:543.22:492.12:498:36Waxing Gibbous22Sat
23Sun9:308.79:4410.83:422.03:352.02:468:39Waxing Gibbous23Sun
24Mon10:199.210:1811.54:210.74:151.82:448:41Waxing Gibbous24Mon
25Tue11:059.710:5212.24:58-0.44:531.72:428:43Full Moon25Tue
26Wed11:4910.111:2712.75:35-1.45:321.82:408:45Full Moon26Wed
27Thu12:3310.36:13-2.26:111.92:398:47Full Moon27Thu
28Fri12:0313.01:1610.46:53-2.76:522.12:378:49Full Moon28Fri
29Sat12:4213.12:0110.37:36-2.87:362.42:358:51Waning Gibbous29Sat
30Sun1:2212.92:4910.08:22-2.68:252.82:338:53Waning Gibbous30Sun
31Mon2:0612.43:449.79:10-2.29:183.12:328:55Waning Gibbous31Mon
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 1:44 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 transitional phase. Tonight's moon is 75% 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 Waxing Gibbous (75% 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