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 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:598.78:089.81:013.11:161.14:2411:16Third Quarter1Thu
2Fri8:137.88:569.92:043.12:052.34:2511:15Third Quarter2Fri
3Sat9:267.49:4110.23:152.93:003.24:2611:15Third Quarter3Sat
4Sun10:337.410:2410.44:282.24:023.94:2711:14Waning Crescent4Sun
5Mon11:367.711:0510.85:281.45:024.24:2911:12Waning Crescent5Mon
6Tue12:318.16:130.65:544.24:3011:11Waning Crescent6Tue
7Wed1:188.56:52-0.16:384.14:3211:10Waning Crescent7Wed
8Thu12:2811.52:009.07:28-0.77:183.94:3411:09New Moon8Thu
9Fri1:0811.82:379.38:04-1.27:573.64:3511:07New Moon9Fri
10Sat1:4712.13:139.68:40-1.68:363.44:3711:06New Moon10Sat
11Sun2:2512.23:479.89:16-1.89:163.24:3911:04New Moon11Sun
12Mon3:0312.14:219.99:54-1.89:573.04:4111:03Waxing Crescent12Mon
13Tue3:4011.84:5710.010:32-1.710:422.84:4311:01Waxing Crescent13Tue
14Wed4:2011.25:3410.111:11-1.211:302.64:4510:59Waxing Crescent14Wed
15Thu5:0610.46:1710.311:52-0.54:4710:57First Quarter15Thu
16Fri6:039.47:0610.512:232.412:360.44:4910:55First Quarter16Fri
17Sat7:208.58:0110.91:222.21:251.54:5110:54First Quarter17Sat
18Sun8:458.18:5711.42:291.72:222.64:5310:52First Quarter18Sun
19Mon10:068.19:5411.93:431.03:293.44:5510:49Waxing Gibbous19Mon
20Tue11:208.610:5212.54:570.04:423.74:5710:47Waxing Gibbous20Tue
21Wed12:269.25:59-1.25:483.55:0010:45Waxing Gibbous21Wed
22Thu1:249.96:52-2.26:453.05:0210:43Full Moon22Thu
23Fri12:4413.42:1510.57:40-2.87:362.55:0410:41Full Moon23Fri
24Sat1:3713.63:0010.98:25-3.18:252.15:0610:39Full Moon24Sat
25Sun2:2613.53:4111.29:08-3.09:121.85:0910:36Waning Gibbous25Sun
26Mon3:1213.14:1911.29:50-2.59:591.75:1110:34Waning Gibbous26Mon
27Tue3:5512.34:5711.010:30-1.810:451.85:1310:32Waning Gibbous27Tue
28Wed4:3711.25:3410.711:10-0.711:322.05:1610:29Waning Gibbous28Wed
29Thu5:2110.06:1310.411:480.55:1810:27Third Quarter29Thu
30Fri6:138.86:5610.112:212.312:281.85:2110:24Third Quarter30Fri
31Sat7:217.87:459.91:142.61:103.15:2310:22Third Quarter31Sat
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