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 1h 40m 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 - Oct 1931

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:219.81:5612.08:173.89:010.95:515:21Waning Gibbous1Thu
2Fri3:009.02:2511.58:504.79:471.55:535:18Waning Gibbous2Fri
3Sat3:568.13:0310.89:315.510:442.15:555:15Third Quarter3Sat
4Sun5:437.64:1010.110:296.211:552.45:585:12Third Quarter4Sun
5Mon7:227.96:129.811:566.56:005:09Third Quarter5Mon
6Tue8:268.77:4110.31:172.11:345.96:035:06Waning Crescent6Tue
7Wed9:139.88:4911.22:331.42:544.46:055:03Waning Crescent7Wed
8Thu9:5211.19:4612.03:290.43:512.56:085:00Waning Crescent8Thu
9Fri10:2912.310:3912.74:14-0.34:380.66:104:56Waning Crescent9Fri
10Sat11:0513.511:2913.14:55-0.65:22-1.06:134:53New Moon10Sat
11Sun11:4114.45:34-0.56:06-2.26:154:50New Moon11Sun
12Mon12:1813.112:1714.96:140.06:50-2.86:184:47New Moon12Mon
13Tue1:0512.712:5314.96:540.97:35-2.76:204:44Waxing Crescent13Tue
14Wed1:5312.01:3014.47:362.08:22-2.06:234:41Waxing Crescent14Wed
15Thu2:4411.02:0913.58:213.29:11-0.96:254:38Waxing Crescent15Thu
16Fri3:439.92:5312.29:094.410:060.36:284:36First Quarter16Fri
17Sat5:009.03:5210.910:055.511:091.56:304:33First Quarter17Sat
18Sun6:318.85:299.811:166.26:334:30First Quarter18Sun
19Mon7:489.17:069.412:252.412:496.26:354:27First Quarter19Mon
20Tue8:459.78:199.61:532.52:355.36:384:24Waxing Gibbous20Tue
21Wed9:2610.39:1510.03:012.33:344.16:414:21Waxing Gibbous21Wed
22Thu9:5810.910:0110.33:442.04:122.86:434:18Waxing Gibbous22Thu
23Fri10:2511.510:4210.64:181.84:451.76:464:15Waxing Gibbous23Fri
24Sat10:5012.111:1910.94:471.85:150.76:484:12Full Moon24Sat
25Sun11:1612.511:5411.05:162.05:450.06:514:09Full Moon25Sun
26Mon11:4112.95:452.36:16-0.46:534:07Full Moon26Mon
27Tue12:2911.012:0613.06:152.86:49-0.66:564:04Full Moon27Tue
28Wed1:0310.812:3213.06:463.47:23-0.56:594:01Waning Gibbous28Wed
29Thu1:3810.412:5912.87:184.08:00-0.27:013:58Waning Gibbous29Thu
30Fri2:159.91:2812.57:534.78:420.27:043:56Waning Gibbous30Fri
31Sat2:599.22:0211.98:335.39:290.87:063:53Waning Gibbous31Sat
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