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 3h 44m 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 - Jan 1933

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:5311.43:2910.69:443.110:020.68:532:47First Quarter1Sun
2Mon4:3511.14:299.210:383.310:442.08:522:48First Quarter2Mon
3Tue5:2310.95:418.111:383.511:263.48:522:50First Quarter3Tue
4Wed6:1710.87:057.512:443.48:512:51First Quarter4Wed
5Thu7:0510.98:237.512:144.62:023.08:502:53Waxing Gibbous5Thu
6Fri7:5311.09:357.81:205.53:142.38:492:55Waxing Gibbous6Fri
7Sat8:4111.310:358.42:325.94:081.58:482:57Waxing Gibbous7Sat
8Sun9:2911.711:239.03:385.84:440.78:472:59Waxing Gibbous8Sun
9Mon10:1712.111:599.64:265.45:200.08:463:01Full Moon9Mon
10Tue10:5912.55:084.95:56-0.78:443:03Full Moon10Tue
11Wed12:2910.011:35 AM12.85:504.46:32-1.28:433:05Full Moon11Wed
12Thu1:0510.412:1713.06:263.97:02-1.58:423:07Full Moon12Thu
13Fri1:3510.712:5312.97:023.57:38-1.68:403:09Waning Gibbous13Fri
14Sat2:0511.01:2912.67:443.18:14-1.38:393:12Waning Gibbous14Sat
15Sun2:3511.22:0511.98:262.88:44-0.88:373:14Waning Gibbous15Sun
16Mon3:0511.42:4711.09:082.69:260.18:363:16Waning Gibbous16Mon
17Tue3:4111.63:359.910:022.410:021.38:343:19Third Quarter17Tue
18Wed4:2311.74:478.710:562.310:502.68:323:21Third Quarter18Wed
19Thu5:1111.86:237.912:022.18:303:23Third Quarter19Thu
20Fri6:1711.97:537.91:201.78:283:26Third Quarter20Fri
21Sat7:2312.29:178.412:505.02:440.88:263:28Waning Crescent21Sat
22Sun8:2912.610:299.32:145.43:50-0.38:243:31Waning Crescent22Sun
23Mon9:3513.211:2310.23:324.94:44-1.48:223:34Waning Crescent23Mon
24Tue10:3513.74:384.15:32-2.38:203:36New Moon24Tue
25Wed12:1111.011:29 AM14.05:263.26:14-2.78:183:39New Moon25Wed
26Thu12:4711.712:1714.06:142.46:56-2.78:163:41New Moon26Thu
27Fri1:2312.112:5913.67:021.87:32-2.38:143:44Waxing Crescent27Fri
28Sat1:5912.31:4112.87:441.58:08-1.68:123:47Waxing Crescent28Sat
29Sun2:2912.22:1711.78:261.58:44-0.48:093:49Waxing Crescent29Sun
30Mon3:0512.02:5910.59:141.79:200.98:073:52Waxing Crescent30Mon
31Tue3:3511.63:419.19:562.09:562.38:053:55First Quarter31Tue
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 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