Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in Johnstone Point, AK.
Next low tide (tomorrow) : 1:24 am (2.3 ft)
Next high tide : in 25m at 6:23 pm (10.4 ft)
Sunset today : 9:30 pm
Sunrise tomorrow : 6:09 am
Moon phase : First Quarter (47% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - Sep 1932

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:0113.112:4112.46:26-1.86:43-0.14:406:51New Moon1Thu
2Fri12:4313.11:1213.07:02-1.57:25-0.84:436:48Waxing Crescent2Fri
3Sat1:2612.61:4413.47:39-0.88:10-1.04:456:45Waxing Crescent3Sat
4Sun2:1111.82:1713.48:170.48:57-0.94:476:42Waxing Crescent4Sun
5Mon3:0010.62:5513.08:581.79:49-0.34:506:39First Quarter5Mon
6Tue4:009.33:4112.39:443.110:480.54:526:36First Quarter6Tue
7Wed5:268.34:4711.410:384.511:591.34:556:33First Quarter7Wed
8Thu7:068.06:2010.811:495.54:576:30First Quarter8Thu
9Fri8:338.57:4810.81:281.51:225.85:006:27Waxing Gibbous9Fri
10Sat9:399.39:0011.22:591.13:005.05:026:24Waxing Gibbous10Sat
11Sun10:2710.19:5911.73:590.34:033.85:046:21Waxing Gibbous11Sun
12Mon11:0510.910:4812.04:41-0.34:492.55:076:17Waxing Gibbous12Mon
13Tue11:3811.511:3012.25:17-0.65:271.55:096:14Full Moon13Tue
14Wed12:0611.95:49-0.66:030.75:126:11Full Moon14Wed
15Thu12:0812.112:3212.26:20-0.26:380.25:146:08Full Moon15Thu
16Fri12:4311.812:5612.46:500.37:120.05:166:05Waning Gibbous16Fri
17Sat1:1611.41:1912.47:201.27:470.15:196:02Waning Gibbous17Sat
18Sun1:4810.81:4212.27:502.18:220.45:215:59Waning Gibbous18Sun
19Mon2:2010.02:0511.88:203.28:591.05:235:56Waning Gibbous19Mon
20Tue2:569.12:3111.28:524.29:411.75:265:53Waning Gibbous20Tue
21Wed3:438.23:0310.69:275.210:312.55:285:50Third Quarter21Wed
22Thu5:077.43:539.810:116.011:353.05:315:46Third Quarter22Thu
23Fri7:017.35:409.311:216.65:335:43Third Quarter23Fri
24Sat8:207.87:189.512:573.11:016.65:365:40Third Quarter24Sat
25Sun9:118.78:2710.32:232.42:345.75:385:37Waning Crescent25Sun
26Mon9:489.79:2211.13:211.43:344.25:405:34Waning Crescent26Mon
27Tue10:2210.810:1212.04:030.54:192.55:435:31Waning Crescent27Tue
28Wed10:5411.910:5912.64:41-0.35:000.95:455:28New Moon28Wed
29Thu11:2613.011:4512.95:17-0.65:40-0.65:485:25New Moon29Thu
30Fri11:5913.95:53-0.56:22-1.75:505:22New Moon30Fri
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 9:53 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 47% 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 (47% 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