Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Johnstone Point, AK.
Next low tide : 5:10 pm (4.6 ft)
Next high tide : in 6h 04m at 11:59 am (8.7 ft)
Sunset today : 9:58 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - Aug 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:427.47:5611.32:031.51:375.23:248:20Waxing Gibbous1Fri
2Sat9:518.29:0212.13:180.33:004.83:278:17Waxing Gibbous2Sat
3Sun10:479.210:0212.94:16-1.04:063.83:298:15Waxing Gibbous3Sun
4Mon11:3410.210:5913.65:04-2.25:002.63:328:12Full Moon4Mon
5Tue12:1611.15:48-3.05:501.53:348:09Full Moon5Tue
6Wed12:5612.06:30-3.36:380.53:378:07Full Moon6Wed
7Thu12:4113.91:3412.67:12-3.27:27-0.23:398:04Waning Gibbous7Thu
8Fri1:2813.32:1112.97:53-2.58:15-0.43:428:01Waning Gibbous8Fri
9Sat2:1612.32:4912.88:33-1.39:05-0.33:447:58Waning Gibbous9Sat
10Sun3:0510.93:2812.59:140.29:560.23:477:56Third Quarter10Sun
11Mon4:029.54:1311.89:571.810:510.93:497:53Third Quarter11Mon
12Tue5:148.25:0811.110:433.411:551.63:527:50Third Quarter12Tue
13Wed6:447.56:1510.511:384.83:547:47Third Quarter13Wed
14Thu8:177.57:2710.31:152.012:535.73:567:44Waning Crescent14Thu
15Fri9:377.98:3510.42:501.82:305.83:597:42Waning Crescent15Fri
16Sat10:338.69:3210.83:551.23:455.24:017:39Waning Crescent16Sat
17Sun11:129.110:2111.24:390.54:324.34:047:36Waning Crescent17Sun
18Mon11:429.711:0211.65:130.05:103.44:067:33New Moon18Mon
19Tue12:0910.25:43-0.55:442.74:097:30New Moon19Tue
20Wed12:3310.66:11-0.76:172.04:117:27New Moon20Wed
21Thu12:1311.912:5711.06:40-0.76:511.54:147:24New Moon21Thu
22Fri12:4611.71:2011.47:08-0.57:251.24:167:21Waxing Crescent22Fri
23Sat1:1811.41:4311.67:370.18:001.04:197:18Waxing Crescent23Sat
24Sun1:5010.92:0611.78:070.88:361.04:217:15Waxing Crescent24Sun
25Mon2:2310.12:3011.68:381.79:171.24:247:12Waxing Crescent25Mon
26Tue3:029.32:5911.59:112.810:031.54:267:09First Quarter26Tue
27Wed3:548.33:3911.19:493.810:591.84:287:06First Quarter27Wed
28Thu5:217.44:4110.710:384.84:317:03First Quarter28Thu
29Fri7:107.36:1510.612:102.011:49 AM5.64:337:00First Quarter29Fri
30Sat8:337.97:4311.01:351.71:235.74:366:57Waxing Gibbous30Sat
31Sun9:358.98:5511.92:570.72:524.84:386:54Waxing Gibbous31Sun
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 2:34 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 spring phase. Tonight's moon is 12% 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 Crescent (12% 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