Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Saturday, August 22, 2026
The tide is currently rising in Johnstone Point, AK.
Next low tide : 3:39 pm (6.3 ft)
Next high tide : in 1h 06m at 11:03 am (7.4 ft)
Sunset today : 9:21 pm
Sunrise tomorrow : 6:17 am
Moon phase : Waxing Gibbous (75% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - Jul 1927

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:5512.72:1710.27:42-2.57:452.82:229:17Waxing Crescent1Fri
2Sat1:3612.12:579.98:23-1.98:313.02:239:17Waxing Crescent2Sat
3Sun2:1611.23:389.69:04-1.19:183.32:249:16Waxing Crescent3Sun
4Mon2:5810.34:219.49:45-0.210:073.52:259:15Waxing Crescent4Mon
5Tue3:469.25:089.210:260.711:003.62:279:14First Quarter5Tue
6Wed4:478.25:579.311:081.711:593.62:289:13First Quarter6Wed
7Thu6:017.56:449.511:552.62:309:12First Quarter7Thu
8Fri7:137.27:309.91:063.212:493.42:319:10First Quarter8Fri
9Sat8:217.38:1410.32:172.61:504.02:339:09Waxing Gibbous9Sat
10Sun9:227.78:5810.93:181.62:524.12:359:08Waxing Gibbous10Sun
11Mon10:188.39:4111.54:050.63:464.02:369:06Waxing Gibbous11Mon
12Tue11:088.810:2512.04:46-0.44:333.72:389:05Waxing Gibbous12Tue
13Wed11:549.411:0912.55:26-1.35:173.32:409:03Full Moon13Wed
14Thu12:369.96:05-2.06:002.92:429:01Full Moon14Thu
15Fri1:1610.36:45-2.56:442.62:449:00Full Moon15Fri
16Sat12:3613.11:5510.67:26-2.87:292.22:468:58Waning Gibbous16Sat
17Sun1:1912.92:3510.88:08-2.78:172.02:488:56Waning Gibbous17Sun
18Mon2:0412.43:1710.98:51-2.29:081.82:508:54Waning Gibbous18Mon
19Tue2:5311.44:0311.09:35-1.410:021.72:528:52Waning Gibbous19Tue
20Wed3:5110.34:5511.110:21-0.311:021.72:548:50Third Quarter20Wed
21Thu5:049.15:5111.211:110.92:568:48Third Quarter21Thu
22Fri6:288.46:4911.512:081.512:082.22:598:46Third Quarter22Fri
23Sat7:498.27:4711.81:221.11:133.23:018:44Waning Crescent23Sat
24Sun9:058.48:4312.12:390.42:263.73:038:41Waning Crescent24Sun
25Mon10:138.99:3812.43:45-0.43:343.73:058:39Waning Crescent25Mon
26Tue11:129.510:3012.64:37-1.24:313.43:088:37New Moon26Tue
27Wed12:0010.05:22-1.85:193.03:108:35New Moon27Wed
28Thu12:4110.46:04-2.06:032.73:128:32New Moon28Thu
29Fri12:0312.71:1810.66:43-2.16:462.43:158:30New Moon29Fri
30Sat12:4312.51:5110.67:20-1.87:272.33:178:27Waxing Crescent30Sat
31Sun1:2112.12:2210.57:57-1.48:072.33:208:25Waxing Crescent31Sun
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 1:21 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 75% 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 Gibbous (75% 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