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 2h 50m 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 - May 1950

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:4111.411:3114.05:29-2.65:310.43:417:45Full Moon1Mon
2Tue12:3211.56:13-3.56:140.83:387:48Full Moon2Tue
3Wed12:1114.41:2211.26:59-3.86:581.53:357:50Waning Gibbous3Wed
4Thu12:5314.22:1210.67:46-3.67:442.33:337:53Waning Gibbous4Thu
5Fri1:3613.63:079.98:35-2.88:343.13:307:55Waning Gibbous5Fri
6Sat2:2212.54:119.19:28-1.89:293.93:277:58Waning Gibbous6Sat
7Sun3:1711.25:268.710:25-0.610:324.53:248:00Third Quarter7Sun
8Mon4:329.96:408.711:270.411:474.73:228:03Third Quarter8Mon
9Tue6:039.07:419.112:361.23:198:05Third Quarter9Tue
10Wed7:248.68:319.71:174.31:471.63:178:08Waning Crescent10Wed
11Thu8:318.69:1010.22:423.22:471.73:148:10Waning Crescent11Thu
12Fri9:288.89:4410.73:382.03:341.93:128:13Waning Crescent12Fri
13Sat10:179.010:1411.24:180.94:112.03:098:15Waning Crescent13Sat
14Sun11:019.210:4311.64:53-0.14:452.33:078:18Waning Crescent14Sun
15Mon11:419.411:1211.95:25-0.75:182.53:048:20New Moon15Mon
16Tue12:199.55:58-1.25:512.93:028:23New Moon16Tue
17Wed12:559.56:31-1.46:253.22:598:25New Moon17Wed
18Thu12:1212.01:319.37:06-1.47:003.62:578:27New Moon18Thu
19Fri12:4311.82:079.07:43-1.27:363.92:558:30Waxing Crescent19Fri
20Sat1:1511.62:478.68:22-0.98:164.32:538:32Waxing Crescent20Sat
21Sun1:4911.13:358.29:04-0.59:004.62:508:34Waxing Crescent21Sun
22Mon2:2810.54:348.09:50-0.29:534.72:488:37Waxing Crescent22Mon
23Tue3:199.75:388.210:390.210:564.62:468:39First Quarter23Tue
24Wed4:349.06:358.711:330.62:448:41First Quarter24Wed
25Thu6:068.67:249.612:074.112:311.02:428:43First Quarter25Thu
26Fri7:258.68:0710.61:223.11:311.32:408:46Waxing Gibbous26Fri
27Sat8:338.98:5011.72:331.52:311.52:388:48Waxing Gibbous27Sat
28Sun9:379.49:3212.73:32-0.23:261.72:368:50Waxing Gibbous28Sun
29Mon10:369.910:1613.54:23-1.84:171.82:358:52Waxing Gibbous29Mon
30Tue11:3310.311:0214.05:11-3.05:061.92:338:54Full Moon30Tue
31Wed12:2810.65:58-3.75:532.12:318:56Full Moon31Wed
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