Tides Today & Tomorrow in Waimanalo, HI

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Waimanalo, HI.
Next low tide : in 4h 18m at 12:31 am (0.3 ft)
Next high tide : 10:15 am (1.5 ft)
Sunset today : 6:58 pm
Sunrise tomorrow : 6:10 am
Moon phase : First Quarter (39% illuminated)
Tide Station Location : Station #1612376
Common Questions About Tides

Waimanalo, HI Tides - Mar 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:031.28:041.411:41-0.16:506:35First Quarter1Sat
2Sun2:441.110:421.41:301.012:160.06:506:35First Quarter2Sun
3Mon1:170.16:496:36First Quarter3Mon
4Tue12:071.53:300.16:486:36First Quarter4Tue
5Wed12:471.65:020.16:476:36Waxing Gibbous5Wed
6Thu1:141.712:070.68:400.55:540.06:466:37Waxing Gibbous6Thu
7Fri1:351.712:410.88:160.46:32-0.16:456:37Waxing Gibbous7Fri
8Sat1:541.81:120.98:140.47:04-0.16:456:37Waxing Gibbous8Sat
9Sun2:111.81:441.18:220.37:35-0.16:446:38Full Moon9Sun
10Mon2:281.82:181.28:350.28:06-0.16:436:38Full Moon10Mon
11Tue2:451.72:531.48:520.18:390.16:426:39Full Moon11Tue
12Wed3:011.63:301.59:100.09:140.26:416:39Full Moon12Wed
13Thu3:161.54:101.59:31-0.19:510.46:406:39Waning Gibbous13Thu
14Fri3:301.44:541.69:54-0.210:330.56:396:40Waning Gibbous14Fri
15Sat3:391.35:481.510:21-0.211:240.76:386:40Waning Gibbous15Sat
16Sun3:411.27:051.510:53-0.26:386:40Waning Gibbous16Sun
17Mon3:121.19:111.512:530.911:35 AM-0.26:376:41Third Quarter17Mon
18Tue10:571.612:41-0.16:366:41Third Quarter18Tue
19Wed11:541.82:380.06:356:41Third Quarter19Wed
20Thu4:26-0.16:346:42Waning Crescent20Thu
21Fri12:341.911:46 AM0.87:300.45:36-0.16:336:42Waning Crescent21Fri
22Sat1:072.012:461.07:320.36:30-0.16:326:42Waning Crescent22Sat
23Sun1:351.91:341.37:480.17:17-0.16:316:42Waning Crescent23Sun
24Mon2:011.82:191.58:080.08:020.06:306:43New Moon24Mon
25Tue2:241.73:031.78:31-0.28:460.26:296:43New Moon25Tue
26Wed2:431.53:451.88:56-0.39:310.46:286:43New Moon26Wed
27Thu2:591.44:271.89:22-0.310:170.56:276:44Waxing Crescent27Thu
28Fri3:091.25:111.79:48-0.311:070.76:276:44Waxing Crescent28Fri
29Sat3:111.16:001.610:13-0.26:266:44Waxing Crescent29Sat
30Sun2:541.07:071.512:130.810:39 AM-0.16:256:45Waxing Crescent30Sun
31Mon8:591.411:070.06:246:45First Quarter31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (1612376)

Common Questions About Waimanalo, HI Tides

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What time does the tide turn (slack tide) in Waimanalo, HI today?

Slack tide in Waimanalo, HI is approximately 5:23 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 Waimanalo, HI?

Waimanalo, HI 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 Waimanalo, HI 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 Waimanalo, HI?

Tide predictions for Waimanalo, HI 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 Waimanalo, HI?

Tide data for Waimanalo, HI is sourced from NOAA Station #1612376. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=1612376.

What is the moon phase in Waimanalo, HI tonight?

Tonight the moon over Waimanalo, HI is First Quarter (39% illuminated). This places Waimanalo, HI 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