Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Johnstone Point, AK.
Next low tide : in 5h 21m at 12:16 pm (-0.8 ft)
Next high tide : 7:02 pm (10.4 ft)
Sunset today : 11:19 pm
Sunrise tomorrow : 4:16 am
Moon phase : First Quarter (39% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - May 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:3112.76:129.311:33-1.911:363.65:399:47Waning Gibbous1Sat
2Sun5:2411.47:308.812:30-0.75:369:50Third Quarter2Sun
3Mon6:3810.18:498.812:384.41:350.35:339:52Third Quarter3Mon
4Tue8:129.29:559.21:534.72:481.05:309:55Third Quarter4Tue
5Wed9:349.010:489.73:264.44:051.35:289:57Waning Crescent5Wed
6Thu10:429.111:3110.34:533.45:071.25:2510:00Waning Crescent6Thu
7Fri11:399.35:482.15:521.25:2210:02Waning Crescent7Fri
8Sat12:0610.812:279.56:291.06:291.25:2010:05Waning Crescent8Sat
9Sun12:3711.31:109.77:030.07:021.45:1710:07New Moon9Sun
10Mon1:0511.71:499.97:36-0.77:341.75:1510:10New Moon10Mon
11Tue1:3311.92:259.98:08-1.28:062.15:1210:12New Moon11Tue
12Wed2:0012.13:009.88:41-1.48:382.55:1010:15New Moon12Wed
13Thu2:2812.03:349.69:15-1.39:123.15:0710:17New Moon13Thu
14Fri2:5611.84:109.29:51-1.19:473.65:0510:20Waxing Crescent14Fri
15Sat3:2611.54:498.710:29-0.810:254.15:0210:22Waxing Crescent15Sat
16Sun3:5711.05:368.211:11-0.311:084.65:0010:25Waxing Crescent16Sun
17Mon4:3410.46:407.911:570.24:5810:27Waxing Crescent17Mon
18Tue5:239.67:527.912:004.912:490.64:5510:29First Quarter18Tue
19Wed6:428.98:548.41:035.01:460.94:5310:32First Quarter19Wed
20Thu8:178.69:449.32:164.62:491.14:5110:34First Quarter20Thu
21Fri9:358.810:2810.33:353.63:521.14:4910:36Waxing Gibbous21Fri
22Sat10:419.311:1011.44:452.04:510.94:4710:39Waxing Gibbous22Sat
23Sun11:429.911:5112.55:410.25:430.84:4510:41Waxing Gibbous23Sun
24Mon12:3910.46:31-1.56:300.84:4310:43Waxing Gibbous24Mon
25Tue12:3313.41:3410.97:17-2.97:161.04:4110:45Full Moon25Tue
26Wed1:1514.12:2711.18:03-3.78:021.34:3910:47Full Moon26Wed
27Thu1:5914.33:1811.08:50-4.08:491.74:3710:49Full Moon27Thu
28Fri2:4514.14:0910.79:38-3.89:382.24:3510:51Waning Gibbous28Fri
29Sat3:3113.55:0210.210:27-3.210:302.84:3310:53Waning Gibbous29Sat
30Sun4:1912.46:009.711:17-2.211:253.44:3210:55Waning Gibbous30Sun
31Mon5:1311.27:059.412:10-1.14:3010:57Third Quarter31Mon
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 3:39 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 39% 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 First Quarter (39% 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