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 : 6:16 pm (3.5 ft)
Next high tide : in 1h 52m at 12:54 pm (9.6 ft)
Sunset today : 9:55 pm
Sunrise tomorrow : 5:47 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - Apr 1950

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:0712.211:3612.75:070.35:25-1.35:106:29Full Moon1Sat
2Sun11:5412.55:49-1.36:02-1.25:076:32Full Moon2Sun
3Mon12:0913.612:4112.56:32-2.46:40-0.75:046:34Full Moon3Mon
4Tue12:4314.11:2712.07:15-2.97:200.25:016:37Waning Gibbous4Tue
5Wed1:1914.22:1411.18:01-2.98:021.34:586:39Waning Gibbous5Wed
6Thu1:5613.83:0710.08:50-2.38:472.54:556:42Waning Gibbous6Thu
7Fri2:3712.94:128.99:42-1.39:373.74:526:44Third Quarter7Fri
8Sat3:2811.75:418.110:42-0.110:384.84:496:47Third Quarter8Sat
9Sun4:4310.47:138.111:530.911:575.44:466:49Third Quarter9Sun
10Mon6:259.68:278.61:201.44:436:52Third Quarter10Mon
11Tue7:529.59:229.41:415.22:461.24:406:54Waning Crescent11Tue
12Wed9:019.810:0310.13:124.03:410.84:376:57Waning Crescent12Wed
13Thu9:5510.110:3610.74:052.64:200.54:346:59Waning Crescent13Thu
14Fri10:4110.311:0511.34:431.44:530.44:317:02Waning Crescent14Fri
15Sat11:2110.511:3011.75:170.45:230.64:287:05New Moon15Sat
16Sun11:5810.511:5512.05:49-0.45:520.94:247:07New Moon16Sun
17Mon12:3210.46:21-0.96:221.44:217:10New Moon17Mon
18Tue12:1912.21:0510.26:53-1.16:522.04:197:12New Moon18Tue
19Wed12:4312.21:379.87:26-1.07:232.74:167:15Waxing Crescent19Wed
20Thu1:0912.02:109.38:01-0.77:553.44:137:17Waxing Crescent20Thu
21Fri1:3511.62:478.68:38-0.28:294.14:107:20Waxing Crescent21Fri
22Sat2:0411.13:357.89:200.49:084.84:077:22Waxing Crescent22Sat
23Sun2:3810.44:497.210:091.09:585.34:047:25First Quarter23Sun
24Mon3:279.66:227.211:061.411:065.64:017:27First Quarter24Mon
25Tue4:578.97:307.812:131.63:587:30First Quarter25Tue
26Wed6:408.88:208.712:315.41:241.43:557:32First Quarter26Wed
27Thu7:569.39:019.81:584.32:290.93:527:35Waxing Gibbous27Thu
28Fri8:599.99:3911.13:062.63:210.53:497:38Waxing Gibbous28Fri
29Sat9:5610.610:1512.33:580.74:070.23:467:40Waxing Gibbous29Sat
30Sun10:5011.110:5313.34:44-1.14:490.13:447:43Full Moon30Sun
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 3:35 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 5% 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 (5% 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