Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Johnstone Point, AK.
Next low tide (tomorrow) : 2:35 am (2.9 ft)
Next high tide : in 5h 40m at 7:24 pm (9.8 ft)
Sunset today : 9:27 pm
Sunrise tomorrow : 6:12 am
Moon phase : First Quarter (57% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - Mar 1932

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:5910.79:178.212:195.72:201.56:445:12Waning Crescent1Tue
2Wed8:2210.710:189.12:035.93:410.86:415:15Waning Crescent2Wed
3Thu9:3011.111:029.93:355.04:310.06:385:18Waning Crescent3Thu
4Fri10:2511.611:3710.64:303.85:09-0.66:355:20Waning Crescent4Fri
5Sat11:1011.95:112.75:41-0.96:325:23New Moon5Sat
6Sun12:0611.111:49 AM12.05:481.86:11-1.06:295:25New Moon6Sun
7Mon12:3111.512:2311.96:221.06:40-0.76:265:28New Moon7Mon
8Tue12:5511.812:5511.66:550.57:08-0.26:235:30New Moon8Tue
9Wed1:1712.01:2611.27:290.37:370.56:205:33Waxing Crescent9Wed
10Thu1:3912.01:5710.58:030.38:051.46:175:35Waxing Crescent10Thu
11Fri2:0111.92:289.78:380.58:342.46:145:38Waxing Crescent11Fri
12Sat2:2411.63:028.89:151.09:033.56:115:41Waxing Crescent12Sat
13Sun2:4911.13:477.79:571.69:344.56:085:43First Quarter13Sun
14Mon3:2210.55:116.810:482.310:155.46:055:46First Quarter14Mon
15Tue4:149.87:136.611:552.711:246.26:025:48First Quarter15Tue
16Wed5:579.48:397.21:232.55:595:51First Quarter16Wed
17Thu7:329.79:338.21:116.32:491.65:565:53Waxing Gibbous17Thu
18Fri8:4310.510:139.32:485.43:440.45:525:56Waxing Gibbous18Fri
19Sat9:4111.410:4810.53:503.84:26-0.75:495:58Waxing Gibbous19Sat
20Sun10:3212.211:2211.74:372.15:04-1.55:466:01Full Moon20Sun
21Mon11:2112.811:5512.85:200.45:41-1.85:436:03Full Moon21Mon
22Tue12:0713.06:03-1.16:19-1.75:406:06Full Moon22Tue
23Wed12:2813.612:5312.86:46-2.16:57-1.15:376:08Full Moon23Wed
24Thu1:0214.11:3912.27:30-2.67:36-0.15:346:11Waning Gibbous24Thu
25Fri1:3714.22:2611.18:17-2.58:181.15:316:13Waning Gibbous25Fri
26Sat2:1413.73:209.99:05-1.89:022.55:286:15Waning Gibbous26Sat
27Sun2:5512.84:288.79:59-0.79:523.85:256:18Third Quarter27Sun
28Mon3:4611.56:017.911:000.410:535.05:226:20Third Quarter28Mon
29Tue5:0610.37:378.012:161.45:186:23Third Quarter29Tue
30Wed6:489.78:528.512:145.71:521.65:156:25Third Quarter30Wed
31Thu8:129.79:459.32:055.43:141.25:126:28Waning Crescent31Thu
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 10:59 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 neap phase. Tonight's moon is 57% 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 minimum.

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 First Quarter (57% illuminated). This places Johnstone Point, AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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