Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Johnstone Point, AK.
Next low tide (tomorrow) : 5:20 am (-0.1 ft)
Next high tide : in 3h 37m at 10:04 pm (11.8 ft)
Sunset today : 10:01 pm
Sunrise tomorrow : 5:42 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - Aug 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:209.34:3912.010:171.511:160.73:248:20Third Quarter1Sat
2Sun5:418.25:4011.511:083.03:268:18Third Quarter2Sun
3Mon7:117.76:4911.212:261.112:104.33:298:15Third Quarter3Mon
4Tue8:387.87:5811.21:501.21:305.13:318:13Waning Crescent4Tue
5Wed9:538.49:0311.43:140.72:585.03:348:10Waning Crescent5Wed
6Thu10:509.110:0011.74:130.04:044.43:368:07Waning Crescent6Thu
7Fri11:339.710:4911.94:57-0.64:533.63:398:05New Moon7Fri
8Sat12:0810.15:34-1.05:342.83:418:02New Moon8Sat
9Sun12:3810.56:08-1.26:112.23:447:59New Moon9Sun
10Mon12:1012.11:0410.86:39-1.26:471.73:467:56New Moon10Mon
11Tue12:4411.91:2911.07:10-0.97:231.43:487:54Waxing Crescent11Tue
12Wed1:1711.51:5211.27:40-0.47:591.33:517:51Waxing Crescent12Wed
13Thu1:4910.92:1611.28:100.38:361.43:537:48Waxing Crescent13Thu
14Fri2:2210.22:4011.18:411.29:141.63:567:45Waxing Crescent14Fri
15Sat2:579.33:0710.99:122.39:562.03:587:42First Quarter15Sat
16Sun3:408.33:4010.69:453.310:442.44:017:39First Quarter16Sun
17Mon4:457.44:2810.210:234.311:442.74:037:36First Quarter17Mon
18Tue6:256.95:4310.011:165.24:067:34First Quarter18Tue
19Wed7:587.17:0610.21:012.612:345.84:087:31Waxing Gibbous19Wed
20Thu9:097.88:1810.92:271.92:085.64:117:28Waxing Gibbous20Thu
21Fri10:028.79:2011.73:330.73:234.64:137:25Waxing Gibbous21Fri
22Sat10:469.810:1512.64:21-0.64:193.24:167:22Waxing Gibbous22Sat
23Sun11:2510.911:0613.35:03-1.65:071.84:187:19Full Moon23Sun
24Mon12:0212.05:42-2.35:520.44:217:16Full Moon24Mon
25Tue12:3812.96:21-2.56:37-0.74:237:13Full Moon25Tue
26Wed12:4113.51:1413.57:00-2.17:23-1.34:257:10Waning Gibbous26Wed
27Thu1:2813.01:5013.87:40-1.38:11-1.54:287:07Waning Gibbous27Thu
28Fri2:1512.02:2713.68:21-0.19:00-1.14:307:04Waning Gibbous28Fri
29Sat3:0510.83:0813.09:041.39:52-0.44:337:01Third Quarter29Sat
30Sun4:079.43:5612.29:502.910:500.64:356:58Third Quarter30Sun
31Mon5:308.35:0311.210:444.34:386:55Third Quarter31Mon
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 1:42 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 Waning 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