Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Saturday, August 1, 2026
The tide is currently rising in Johnstone Point, AK.
Next low tide : 9:55 am (-1.2 ft)
Next high tide : in 1h 22m at 3:19 am (11.7 ft)
Sunset today : 10:20 pm
Sunrise tomorrow : 5:25 am
Moon phase : Waning Gibbous (90% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - Sep 1968

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:548.07:0711.112:491.412:375.64:416:51Waxing Gibbous1Sun
2Mon9:128.78:2711.42:211.02:145.44:436:47Waxing Gibbous2Mon
3Tue10:119.69:3312.03:360.23:344.44:466:44Waxing Gibbous3Tue
4Wed10:5710.510:3012.54:28-0.74:303.14:486:41Waxing Gibbous4Wed
5Thu11:3611.311:1912.85:10-1.25:161.94:516:38Full Moon5Thu
6Fri12:1011.95:47-1.55:570.94:536:35Full Moon6Fri
7Sat12:0212.812:4112.36:22-1.36:370.34:556:32Full Moon7Sat
8Sun12:4212.51:0912.56:55-0.87:150.04:586:29Waning Gibbous8Sun
9Mon1:1912.01:3512.47:280.17:530.05:006:26Waning Gibbous9Mon
10Tue1:5411.22:0012.28:001.28:310.35:036:23Waning Gibbous10Tue
11Wed2:2910.32:2411.88:332.49:100.95:056:20Waning Gibbous11Wed
12Thu3:089.32:5111.29:063.69:521.75:076:17Third Quarter12Thu
13Fri3:568.23:2410.59:424.810:422.55:106:13Third Quarter13Fri
14Sat5:177.44:159.710:255.811:453.15:126:10Third Quarter14Sat
15Sun7:077.25:539.211:296.65:156:07Third Quarter15Sun
16Mon8:337.67:269.41:103.31:076.85:176:04Waning Crescent16Mon
17Tue9:288.38:3310.02:442.72:476.05:196:01Waning Crescent17Tue
18Wed10:059.29:2710.83:391.73:444.85:225:58Waning Crescent18Wed
19Thu10:3710.110:1411.64:170.74:253.45:245:55Waning Crescent19Thu
20Fri11:0711.010:5712.24:50-0.15:022.05:275:52New Moon20Fri
21Sat11:3611.911:3812.65:23-0.65:390.75:295:49New Moon21Sat
22Sun12:0512.85:56-0.76:17-0.45:315:46New Moon22Sun
23Mon12:2012.712:3513.56:30-0.56:57-1.25:345:42New Moon23Mon
24Tue1:0212.51:0513.97:050.27:39-1.55:365:39Waxing Crescent24Tue
25Wed1:4511.91:3813.97:431.18:24-1.45:395:36Waxing Crescent25Wed
26Thu2:3111.02:1313.68:242.39:13-0.95:415:33Waxing Crescent26Thu
27Fri3:269.92:5512.89:093.510:080.05:435:30First Quarter27Fri
28Sat4:438.83:5211.710:034.711:130.95:465:27First Quarter28Sat
29Sun6:238.45:2510.711:115.75:485:24First Quarter29Sun
30Mon7:518.87:0710.512:331.512:405.95:515:21First Quarter30Mon
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 6:37 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 spring phase. Tonight's moon is 90% 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 Gibbous (90% 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