Tides Today & Tomorrow in The Brothers, AK

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in The Brothers, AK.
Next low tide (tomorrow) : 3:39 am (3.2 ft)
Next high tide : in 6h 23m at 8:25 pm (11.9 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:34 am
Moon phase : First Quarter (66% illuminated)
Tide Station Location : Station #9451785
Common Questions About Tides

The Brothers, AK Tides - May 1921

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:4410.57:5011.612:445.21:053.13:056:38Third Quarter1Sun
2Mon7:5910.88:3712.41:534.32:042.93:036:41Waning Crescent2Mon
3Tue8:5811.69:1713.42:493.02:552.63:006:43Waning Crescent3Tue
4Wed9:4612.49:5314.43:341.63:392.12:586:45Waning Crescent4Wed
5Thu10:2813.310:2815.34:150.24:201.72:566:47Waning Crescent5Thu
6Fri11:0914.011:0316.14:53-1.04:581.42:536:49New Moon6Fri
7Sat11:4914.611:3916.65:31-2.15:371.32:516:51New Moon7Sat
8Sun12:3014.86:10-2.86:171.42:496:53New Moon8Sun
9Mon12:1816.91:1314.86:51-3.16:581.72:476:55Waxing Crescent9Mon
10Tue12:5816.71:5814.57:35-2.97:442.22:456:57Waxing Crescent10Tue
11Wed1:4216.22:4714.18:22-2.48:352.72:427:00Waxing Crescent11Wed
12Thu2:3115.33:4113.59:13-1.59:343.32:407:02Waxing Crescent12Thu
13Fri3:2714.14:4513.110:11-0.510:433.62:387:04First Quarter13Fri
14Sat4:3712.95:5513.111:150.52:367:06First Quarter14Sat
15Sun6:0112.17:0413.512:003.412:231.22:347:08First Quarter15Sun
16Mon7:2612.08:0514.21:162.61:301.62:327:10Waxing Gibbous16Mon
17Tue8:3912.48:5715.02:251.42:321.72:307:12Waxing Gibbous17Tue
18Wed9:3913.09:4415.63:220.13:261.72:287:14Waxing Gibbous18Wed
19Thu10:3013.610:2616.14:11-1.04:141.72:277:16Waxing Gibbous19Thu
20Fri11:1613.911:0516.34:55-1.84:571.82:257:17Full Moon20Fri
21Sat11:5814.111:4216.25:35-2.25:372.02:237:19Full Moon21Sat
22Sun12:3814.16:13-2.36:162.32:217:21Full Moon22Sun
23Mon12:1815.91:1613.86:50-2.06:542.72:207:23Waning Gibbous23Mon
24Tue12:5415.41:5413.47:27-1.67:333.22:187:25Waning Gibbous24Tue
25Wed1:2914.62:3213.08:05-0.98:133.82:167:27Waning Gibbous25Wed
26Thu2:0513.83:1212.48:44-0.18:584.32:157:28Waning Gibbous26Thu
27Fri2:4412.83:5712.09:260.89:494.72:137:30Third Quarter27Fri
28Sat3:3011.84:4811.710:131.710:494.82:127:32Third Quarter28Sat
29Sun4:2810.95:4411.711:042.411:554.62:117:33Third Quarter29Sun
30Mon5:4110.36:4112.112:013.02:097:35Third Quarter30Mon
31Tue7:0010.37:3412.71:013.91:003.32:087:36Waning Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9451785)

Common Questions About The Brothers, AK Tides

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What time does the tide turn (slack tide) in The Brothers, AK today?

Slack tide in The Brothers, AK is approximately 12:02 am — 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 The Brothers, AK?

The Brothers, AK is currently in a transitional phase. Tonight's moon is 66% 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 The Brothers, 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 The Brothers, AK?

Tide predictions for The Brothers, 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 The Brothers, AK?

Tide data for The Brothers, AK is sourced from NOAA Station #9451785. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9451785.

What is the moon phase in The Brothers, AK tonight?

Tonight the moon over The Brothers, AK is First Quarter (66% illuminated). This places The Brothers, 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