Tides Today & Tomorrow in Johnstone Point, AK

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Johnstone Point, AK.
Next low tide : 5:10 pm (4.6 ft)
Next high tide : in 3h 10m at 11:59 am (8.7 ft)
Sunset today : 9:58 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9454319
Common Questions About Tides

Johnstone Point, AK Tides - May 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:118.86:387.611:221.811:405.43:397:46First Quarter1Thu
2Fri5:438.17:348.012:242.23:377:49First Quarter2Fri
3Sat7:058.08:188.71:025.01:292.33:347:52First Quarter3Sat
4Sun8:108.28:549.52:234.02:282.23:317:54Waxing Gibbous4Sun
5Mon9:058.69:2710.43:202.73:162.13:287:57Waxing Gibbous5Mon
6Tue9:559.19:5911.24:011.33:562.03:267:59Waxing Gibbous6Tue
7Wed10:429.610:3212.04:390.04:341.93:238:02Waxing Gibbous7Wed
8Thu11:2810.011:0612.75:15-1.25:112.03:208:04Full Moon8Thu
9Fri12:1210.35:53-2.15:492.13:188:07Full Moon9Fri
10Sat12:5710.36:34-2.66:302.43:158:09Full Moon10Sat
11Sun12:1913.31:4210.17:16-2.87:122.73:138:12Waning Gibbous11Sun
12Mon1:0013.32:309.88:02-2.77:593.03:108:14Waning Gibbous12Mon
13Tue1:4412.83:249.48:51-2.38:513.43:088:17Waning Gibbous13Tue
14Wed2:3312.04:279.19:43-1.69:503.73:058:19Third Quarter14Wed
15Thu3:3410.95:369.110:39-0.810:573.83:038:22Third Quarter15Thu
16Fri4:569.86:409.611:380.03:018:24Third Quarter16Fri
17Sat6:259.17:3510.312:123.412:410.72:588:26Third Quarter17Sat
18Sun7:438.98:2311.01:342.61:461.22:568:29Waning Crescent18Sun
19Mon8:529.09:0711.72:481.32:461.62:548:31Waning Crescent19Mon
20Tue9:539.29:4812.33:46-0.13:391.92:518:33Waning Crescent20Tue
21Wed10:499.510:2712.64:33-1.24:252.22:498:36Waning Crescent21Wed
22Thu11:409.711:0512.75:14-1.95:082.52:478:38New Moon22Thu
23Fri12:269.85:54-2.25:482.82:458:40New Moon23Fri
24Sat1:079.86:33-2.26:283.12:438:42New Moon24Sat
25Sun12:1912.41:469.67:12-2.07:083.42:418:45Waxing Crescent25Sun
26Mon12:5512.02:249.27:51-1.57:493.72:398:47Waxing Crescent26Mon
27Tue1:3111.43:038.88:32-1.08:324.02:378:49Waxing Crescent27Tue
28Wed2:0810.73:478.59:13-0.49:184.32:368:51Waxing Crescent28Wed
29Thu2:499.94:388.39:550.310:084.42:348:53First Quarter29Thu
30Fri3:398.95:328.310:380.911:054.42:328:55First Quarter30Fri
31Sat4:478.16:228.711:241.62:318:57First Quarter31Sat
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 2:34 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 spring phase. Tonight's moon is 12% 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 maximum.

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 Waning Crescent (12% illuminated). This places Johnstone Point, AK in a spring tide cycle, so tidal ranges are near their weekly maximum 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