Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Sunday, August 16, 2026
The tide is currently rising in Johnstone Point, AK.
Next low tide : 10:24 am (-0.4 ft)
Next high tide : in 1h 38m at 4:12 am (11.7 ft)
Sunset today : 9:38 pm
Sunrise tomorrow : 6:02 am
Moon phase : Waxing Crescent (20% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - Jan 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:4011.72:1012.18:242.88:51-0.68:532:47Waxing Crescent1Wed
2Thu3:1911.32:5011.09:103.29:310.48:522:48Waxing Crescent2Thu
3Fri4:0110.93:369.89:583.610:111.58:512:50First Quarter3Fri
4Sat4:4810.54:358.710:503.910:552.78:512:52First Quarter4Sat
5Sun5:4010.45:547.911:494.111:433.78:502:53First Quarter5Sun
6Mon6:3410.47:147.612:593.98:492:55First Quarter6Mon
7Tue7:2710.68:267.812:414.52:163.38:482:57Waxing Gibbous7Tue
8Wed8:1611.19:288.31:504.93:202.48:472:59Waxing Gibbous8Wed
9Thu9:0311.610:219.02:574.94:061.38:463:01Waxing Gibbous9Thu
10Fri9:4812.211:069.73:514.54:450.38:443:03Waxing Gibbous10Fri
11Sat10:3012.711:4710.44:364.05:22-0.78:433:05Full Moon11Sat
12Sun11:1213.25:183.55:58-1.48:423:07Full Moon12Sun
13Mon12:2511.011:52 AM13.55:582.96:35-2.08:403:09Full Moon13Mon
14Tue1:0111.512:3213.76:392.57:13-2.28:393:12Full Moon14Tue
15Wed1:3711.81:1213.57:222.17:52-2.18:373:14Waning Gibbous15Wed
16Thu2:1312.11:5412.98:071.98:33-1.68:353:16Waning Gibbous16Thu
17Fri2:5212.12:3812.08:551.89:15-0.88:343:19Waning Gibbous17Fri
18Sat3:3412.13:3110.99:471.910:000.38:323:21Third Quarter18Sat
19Sun4:2411.94:409.610:442.010:501.58:303:24Third Quarter19Sun
20Mon5:2411.86:088.811:492.111:482.78:283:26Third Quarter20Mon
21Tue6:3011.97:348.61:051.98:263:29Third Quarter21Tue
22Wed7:3512.18:539.012:563.72:261.28:243:31Waning Crescent22Wed
23Thu8:3712.510:019.72:144.13:360.28:223:34Waning Crescent23Thu
24Fri9:3512.910:5710.43:263.84:30-0.88:203:36Waning Crescent24Fri
25Sat10:2813.211:4511.14:243.35:14-1.58:183:39New Moon25Sat
26Sun11:1613.55:132.75:55-1.98:163:41New Moon26Sun
27Mon12:2611.612:0013.45:582.26:33-2.08:143:44New Moon27Mon
28Tue1:0311.912:4013.26:401.97:10-1.88:113:47New Moon28Tue
29Wed1:3612.01:1612.77:201.77:46-1.38:093:49Waxing Crescent29Wed
30Thu2:0811.91:5112.08:011.88:21-0.58:073:52Waxing Crescent30Thu
31Fri2:3811.62:2611.18:412.08:560.48:043:55Waxing Crescent31Fri
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 7:18 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 20% 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 Waxing Crescent (20% 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