Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in Johnstone Point, AK.
Next low tide : in 59m at 11:01 am (1.0 ft)
Next high tide : 5:08 pm (11.7 ft)
Sunset today : 9:36 pm
Sunrise tomorrow : 6:04 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - May 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:1613.81:1811.26:58-3.27:021.23:417:45Waxing Crescent1Sun
2Mon12:5713.82:0510.97:43-3.27:481.63:387:47Waxing Crescent2Mon
3Tue1:4013.42:5510.48:31-2.88:382.13:367:50Waxing Crescent3Tue
4Wed2:2812.63:549.99:22-2.19:332.73:337:53Waxing Crescent4Wed
5Thu3:2411.55:039.510:16-1.210:353.13:307:55First Quarter5Thu
6Fri4:3710.36:149.611:15-0.211:463.33:277:58First Quarter6Fri
7Sat6:039.57:1810.012:180.73:258:00First Quarter7Sat
8Sun7:239.28:1310.61:063.01:271.23:228:03Waxing Gibbous8Sun
9Mon8:339.29:0111.22:282.02:331.53:198:05Waxing Gibbous9Mon
10Tue9:359.59:4511.73:320.93:291.63:178:08Waxing Gibbous10Tue
11Wed10:299.710:2412.04:20-0.24:161.63:148:10Waxing Gibbous11Wed
12Thu11:1710.011:0012.35:01-1.04:571.83:128:13Full Moon12Thu
13Fri12:0110.15:39-1.65:351.93:098:15Full Moon13Fri
14Sat12:4010.16:15-1.86:122.23:078:18Full Moon14Sat
15Sun12:0812.21:1610.06:51-1.76:492.53:048:20Full Moon15Sun
16Mon12:4012.01:519.87:28-1.57:272.83:028:22Waning Gibbous16Mon
17Tue1:1211.72:279.58:05-1.18:063.23:008:25Waning Gibbous17Tue
18Wed1:4511.13:069.18:44-0.68:483.62:578:27Waning Gibbous18Wed
19Thu2:2010.43:518.79:240.09:333.92:558:30Waning Gibbous19Thu
20Fri3:019.64:448.510:060.610:234.12:538:32Third Quarter20Fri
21Sat3:548.85:438.610:521.211:224.12:518:34Third Quarter21Sat
22Sun5:108.16:388.911:431.82:488:37Third Quarter22Sun
23Mon6:337.87:279.612:283.812:392.22:468:39Third Quarter23Mon
24Tue7:458.08:1210.41:392.91:412.52:448:41Waning Crescent24Tue
25Wed8:478.58:5511.32:441.72:412.42:428:43Waning Crescent25Wed
26Thu9:459.19:3812.23:390.23:352.22:408:45Waning Crescent26Thu
27Fri10:409.710:2313.04:26-1.24:252.02:388:47Waning Crescent27Fri
28Sat11:3210.311:0813.75:12-2.55:111.72:378:50New Moon28Sat
29Sun12:2210.85:57-3.35:581.52:358:52New Moon29Sun
30Mon1:1111.06:43-3.86:461.42:338:54New Moon30Mon
31Tue12:4214.01:5911.17:29-3.87:361.52:318:55Waxing Crescent31Tue
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 2:04 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 transitional phase. Tonight's moon is 28% 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 shifting between spring and neap.

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 Waxing Crescent (28% illuminated). This places Johnstone Point, AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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