Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Johnstone Point, AK.
Next low tide : 6:20 am (-1.2 ft)
Next high tide (tomorrow) : in 2h 58m at 11:13 pm (12.4 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 - Jul 1951

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:158.310:1111.34:40-0.14:224.52:229:17Waning Crescent1Sun
2Mon11:578.710:5311.55:18-0.65:054.32:239:16New Moon2Mon
3Tue12:339.05:54-1.05:444.02:249:16New Moon3Tue
4Wed1:069.36:29-1.26:223.72:269:15New Moon4Wed
5Thu12:1211.81:389.47:04-1.47:003.52:279:14New Moon5Thu
6Fri12:4811.72:099.57:38-1.47:393.32:299:13Waxing Crescent6Fri
7Sat1:2311.42:399.68:13-1.38:193.22:309:11Waxing Crescent7Sat
8Sun1:5711.03:109.78:47-1.09:013.02:329:10Waxing Crescent8Sun
9Mon2:3510.33:439.99:22-0.49:472.82:339:09Waxing Crescent9Mon
10Tue3:189.44:2110.19:590.410:372.62:359:07First Quarter10Tue
11Wed4:158.55:0510.410:381.411:342.32:379:06First Quarter11Wed
12Thu5:337.75:5710.811:242.52:399:04First Quarter12Thu
13Fri7:007.46:5311.212:411.812:213.52:409:03First Quarter13Fri
14Sat8:217.67:5311.81:551.01:324.22:429:01Waxing Gibbous14Sat
15Sun9:358.28:5312.53:08-0.12:484.32:448:59Waxing Gibbous15Sun
16Mon10:408.99:5313.14:09-1.43:563.92:468:57Waxing Gibbous16Mon
17Tue11:369.810:5113.65:02-2.44:533.22:488:56Full Moon17Tue
18Wed12:2510.55:50-3.25:462.42:508:54Full Moon18Wed
19Thu1:0911.16:36-3.66:371.72:538:52Full Moon19Thu
20Fri12:3813.81:5011.57:20-3.57:271.22:558:50Waning Gibbous20Fri
21Sat1:2613.32:3011.78:03-3.08:161.02:578:48Waning Gibbous21Sat
22Sun2:1312.33:1011.68:44-2.09:071.02:598:45Waning Gibbous22Sun
23Mon3:0111.03:5011.49:25-0.79:581.23:018:43Third Quarter23Mon
24Tue3:549.64:3311.110:050.810:511.63:048:41Third Quarter24Tue
25Wed4:588.35:2010.710:482.311:502.03:068:39Third Quarter25Wed
26Thu6:177.46:1310.411:343.83:088:36Third Quarter26Thu
27Fri7:417.07:1010.21:002.212:324.93:118:34Waning Crescent27Fri
28Sat9:047.28:0810.32:252.01:495.63:138:32Waning Crescent28Sat
29Sun10:147.79:0310.53:361.53:105.63:158:29Waning Crescent29Sun
30Mon11:038.39:5510.94:250.84:085.13:188:27Waning Crescent30Mon
31Tue11:408.810:4011.45:040.14:524.43:208:24Waning Crescent31Tue
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 2:46 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 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