Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Johnstone Point, AK.
Next low tide : 12:16 pm (-0.8 ft)
Next high tide : in 54m at 5:44 am (10.5 ft)
Sunset today : 11:19 pm
Sunrise tomorrow : 4:16 am
Moon phase : First Quarter (39% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - Jul 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:318.511:0612.45:140.05:013.34:2311:17Waxing Gibbous1Tue
2Wed12:319.36:10-1.36:022.84:2411:16Waxing Gibbous2Wed
3Thu12:0113.21:2510.16:59-2.56:562.14:2611:15Full Moon3Thu
4Fri12:5413.72:1510.97:46-3.47:471.54:2711:14Full Moon4Fri
5Sat1:4714.03:0211.58:32-3.88:371.04:2811:13Full Moon5Sat
6Sun2:3814.03:4611.99:18-3.89:280.64:3011:12Waning Gibbous6Sun
7Mon3:2713.54:3012.010:03-3.310:190.54:3111:11Waning Gibbous7Mon
8Tue4:1712.55:1411.910:47-2.411:120.74:3311:09Waning Gibbous8Tue
9Wed5:0811.36:0211.711:32-1.24:3511:08Third Quarter9Wed
10Thu6:079.96:5311.312:061.012:180.24:3611:06Third Quarter10Thu
11Fri7:188.67:4911.01:041.41:071.64:3811:05Third Quarter11Fri
12Sat8:367.88:4710.82:091.72:013.04:4011:03Third Quarter12Sat
13Sun9:547.69:4310.83:241.83:063.94:4211:02Waning Crescent13Sun
14Mon11:077.710:3710.94:441.44:204.44:4411:00Waning Crescent14Mon
15Tue12:108.25:450.85:274.34:4610:58Waning Crescent15Tue
16Wed1:008.76:310.26:193.94:4810:56Waning Crescent16Wed
17Thu12:1211.31:399.17:08-0.47:013.54:5010:54New Moon17Thu
18Fri12:5511.62:139.67:43-0.87:393.04:5210:52New Moon18Fri
19Sat1:3411.82:4410.08:15-1.18:162.64:5410:50New Moon19Sat
20Sun2:1011.93:1310.38:47-1.38:532.34:5610:48New Moon20Sun
21Mon2:4511.83:4110.59:20-1.29:302.14:5910:46Waxing Crescent21Mon
22Tue3:1811.54:0910.79:52-1.010:072.05:0110:44Waxing Crescent22Tue
23Wed3:5211.04:3710.710:25-0.510:471.95:0310:42Waxing Crescent23Wed
24Thu4:2710.35:0710.710:590.211:301.95:0510:40Waxing Crescent24Thu
25Fri5:079.55:4310.711:361.05:0810:37First Quarter25Fri
26Sat5:598.66:2810.712:172.012:162.05:1010:35First Quarter26Sat
27Sun7:147.87:2810.71:132.01:042.95:1210:33First Quarter27Sun
28Mon8:457.58:3711.02:181.82:053.75:1510:30First Quarter28Mon
29Tue10:067.89:4411.53:341.33:204.15:1710:28Waxing Gibbous29Tue
30Wed11:168.510:4912.24:490.44:393.95:2010:25Waxing Gibbous30Wed
31Thu12:169.55:52-0.95:473.05:2210:23Waxing Gibbous31Thu
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 9:00 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 39% 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 First Quarter (39% 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