Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in Johnstone Point, AK.
Next low tide : in 6h 02m at 4:02 am (0.9 ft)
Next high tide : 10:49 am (7.8 ft)
Sunset today : 10:04 pm
Sunrise tomorrow : 5:40 am
Moon phase : Waning Crescent (31% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - Jul 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:258.09:3611.04:050.63:404.42:229:17Waxing Gibbous1Fri
2Sat11:128.510:2011.34:460.04:284.12:239:16Waxing Gibbous2Sat
3Sun11:528.911:0111.65:22-0.65:093.72:249:16Full Moon3Sun
4Mon12:279.45:56-1.15:483.32:269:15Full Moon4Mon
5Tue1:009.76:30-1.46:263.02:279:14Full Moon5Tue
6Wed12:1711.91:3210.07:04-1.67:042.72:299:12Full Moon6Wed
7Thu12:5211.82:0210.27:38-1.67:432.52:309:11Waning Gibbous7Thu
8Fri1:2711.52:3310.38:12-1.48:242.32:329:10Waning Gibbous8Fri
9Sat2:0311.03:0510.58:47-0.99:082.22:339:09Waning Gibbous9Sat
10Sun2:4210.23:4010.69:24-0.29:552.02:359:07Waning Gibbous10Sun
11Mon3:309.34:2210.710:030.710:491.92:379:06Third Quarter11Mon
12Tue4:348.45:1410.910:471.711:501.72:399:04Third Quarter12Tue
13Wed6:007.76:1411.211:402.82:409:03Third Quarter13Wed
14Thu7:277.67:1711.61:001.212:463.62:429:01Waning Crescent14Thu
15Fri8:458.08:2012.22:160.42:034.02:448:59Waning Crescent15Fri
16Sat9:558.79:2112.83:26-0.73:173.72:468:57Waning Crescent16Sat
17Sun10:549.610:1913.44:24-1.84:192.92:488:56New Moon17Sun
18Mon11:4610.411:1513.75:14-2.75:132.12:518:54New Moon18Mon
19Tue12:3211.15:59-3.36:041.42:538:52New Moon19Tue
20Wed12:0613.81:1411.76:43-3.46:520.92:558:50New Moon20Wed
21Thu12:5513.51:5311.97:25-3.17:400.62:578:47Waxing Crescent21Thu
22Fri1:4012.82:3111.98:06-2.38:280.62:598:45Waxing Crescent22Fri
23Sat2:2511.73:0811.78:46-1.29:160.93:018:43Waxing Crescent23Sat
24Sun3:1110.43:4711.39:260.110:051.33:048:41First Quarter24Sun
25Mon4:039.14:3010.810:071.510:581.83:068:39First Quarter25Mon
26Tue5:088.05:2010.410:502.911:582.33:088:36First Quarter26Tue
27Wed6:277.26:1810.111:394.13:118:34First Quarter27Wed
28Thu7:487.17:1910.01:112.512:415.03:138:32Waxing Gibbous28Thu
29Fri9:027.38:1810.22:372.22:005.33:158:29Waxing Gibbous29Fri
30Sat10:037.99:1210.63:421.53:155.13:188:27Waxing Gibbous30Sat
31Sun10:498.510:0011.14:260.74:094.43:208:24Waxing Gibbous31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9454319)

Common Questions About Johnstone Point, AK Tides

Show All
What time does the tide turn (slack tide) in Johnstone Point, AK today?

Slack tide in Johnstone Point, AK is approximately 7:25 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 31% 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 Waning Crescent (31% 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