Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Johnstone Point, AK.
Next low tide (tomorrow) : 2:35 am (2.9 ft)
Next high tide : in 4h 03m at 7:24 pm (9.8 ft)
Sunset today : 9:27 pm
Sunrise tomorrow : 6:12 am
Moon phase : First Quarter (57% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - Jan 1932

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:5411.76:288.612:162.68:532:46Third Quarter1Fri
2Sat6:4912.17:548.412:063.01:321.98:532:47Waning Crescent2Sat
3Sun7:4512.69:128.81:104.02:490.98:522:49Waning Crescent3Sun
4Mon8:4013.010:229.42:234.73:52-0.38:512:50Waning Crescent4Mon
5Tue9:3513.411:2110.13:324.84:44-1.28:512:52Waning Crescent5Tue
6Wed10:2813.64:314.55:30-1.88:502:54New Moon6Wed
7Thu12:1110.611:18 AM13.85:214.16:13-2.18:492:55New Moon7Thu
8Fri12:5411.012:0513.76:083.76:54-2.18:482:57New Moon8Fri
9Sat1:3211.212:4813.36:533.47:33-1.98:472:59Waxing Crescent9Sat
10Sun2:0711.21:2712.77:363.28:11-1.38:453:01Waxing Crescent10Sun
11Mon2:4011.12:0411.98:193.28:47-0.58:443:03Waxing Crescent11Mon
12Tue3:1311.02:4110.89:033.39:210.58:433:06Waxing Crescent12Tue
13Wed3:4710.83:229.79:483.49:561.68:413:08First Quarter13Wed
14Thu4:2310.64:138.510:363.610:322.88:403:10First Quarter14Thu
15Fri5:0410.55:267.511:303.711:114.08:383:12First Quarter15Fri
16Sat5:5310.46:557.112:343.68:373:14First Quarter16Sat
17Sun6:4610.58:207.21:523.28:353:17First Quarter17Sun
18Mon7:4110.89:357.71:065.93:082.48:333:19Waxing Gibbous18Mon
19Tue8:3611.210:348.42:296.24:021.38:323:22Waxing Gibbous19Tue
20Wed9:2811.811:209.23:375.94:440.28:303:24Waxing Gibbous20Wed
21Thu10:1812.511:599.94:295.25:23-0.88:283:27Full Moon21Thu
22Fri11:0413.15:134.46:00-1.78:263:29Full Moon22Fri
23Sat12:3410.511:48 AM13.65:553.66:37-2.38:243:32Full Moon23Sat
24Sun1:0811.112:3113.86:382.87:15-2.68:223:34Full Moon24Sun
25Mon1:4111.71:1313.67:212.17:52-2.48:203:37Waning Gibbous25Mon
26Tue2:1512.11:5512.98:071.68:31-1.88:183:39Waning Gibbous26Tue
27Wed2:4912.32:4111.88:551.39:10-0.78:163:42Waning Gibbous27Wed
28Thu3:2612.43:3310.59:461.39:510.78:133:45Third Quarter28Thu
29Fri4:0912.44:419.010:421.410:362.38:113:47Third Quarter29Fri
30Sat5:0112.16:128.011:471.611:293.88:093:50Third Quarter30Sat
31Sun6:0511.97:487.81:041.68:063:53Third Quarter31Sun
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 10:59 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 neap phase. Tonight's moon is 57% 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 minimum.

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 (57% illuminated). This places Johnstone Point, AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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