Tides Today & Tomorrow in Waimanalo, HI

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Waimanalo, HI.
Next low tide (tomorrow) : in 11h 15m at 1:21 am (0.3 ft)
Next high tide (tomorrow) : 11:47 am (1.7 ft)
Sunset today : 6:57 pm
Sunrise tomorrow : 6:10 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #1612376
Common Questions About Tides

Waimanalo, HI Tides - Jul 1950

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:180.95:062.39:04-0.45:527:16Waning Gibbous1Sat
2Sun3:150.95:442.212:030.79:47 AM-0.25:527:16Waning Gibbous2Sun
3Mon4:170.96:172.012:430.610:27 AM0.05:527:16Waning Gibbous3Mon
4Tue5:320.86:441.81:210.511:05 AM0.35:537:16Waning Gibbous4Tue
5Wed7:200.97:041.61:590.411:43 AM0.65:537:16Third Quarter5Wed
6Thu9:551.07:151.52:370.312:310.85:537:16Third Quarter6Thu
7Fri11:531.37:091.33:140.32:491.05:547:16Third Quarter7Fri
8Sat12:381.53:520.25:547:16Third Quarter8Sat
9Sun1:071.74:290.15:547:16Waning Crescent9Sun
10Mon1:341.95:070.05:557:16Waning Crescent10Mon
11Tue2:012.05:44-0.15:557:16Waning Crescent11Tue
12Wed2:312.16:21-0.29:490.85:567:16Waning Crescent12Wed
13Thu3:012.26:58-0.29:580.85:567:16New Moon13Thu
14Fri12:211.03:332.27:35-0.310:200.85:567:16New Moon14Fri
15Sat1:141.04:052.38:11-0.310:470.75:577:15New Moon15Sat
16Sun2:041.04:352.38:46-0.311:160.75:577:15New Moon16Sun
17Mon2:551.05:042.29:23-0.211:460.65:587:15Waxing Crescent17Mon
18Tue3:531.05:312.110:000.05:587:15Waxing Crescent18Tue
19Wed5:011.05:552.012:170.510:40 AM0.35:587:15Waxing Crescent19Wed
20Thu6:311.16:161.812:510.411:27 AM0.55:597:14First Quarter20Thu
21Fri8:351.26:321.61:280.312:340.95:597:14First Quarter21Fri
22Sat10:411.56:351.42:130.12:571.16:007:14First Quarter22Sat
23Sun11:581.83:060.06:007:13First Quarter23Sun
24Mon12:502.14:04-0.16:007:13Waxing Gibbous24Mon
25Tue1:332.35:02-0.26:017:13Waxing Gibbous25Tue
26Wed2:142.45:56-0.39:200.86:017:12Waxing Gibbous26Wed
27Thu2:512.56:46-0.49:350.86:027:12Full Moon27Thu
28Fri12:511.03:272.47:32-0.49:590.76:027:11Full Moon28Fri
29Sat1:491.13:592.48:14-0.310:250.76:027:11Full Moon29Sat
30Sun2:411.14:282.28:54-0.210:540.66:037:10Full Moon30Sun
31Mon3:311.24:532.19:320.011:230.56:037:10Waning Gibbous31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (1612376)

Common Questions About Waimanalo, HI Tides

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

Slack tide in Waimanalo, HI is approximately 6:34 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 neap phase. Tonight's moon is 48% 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 minimum.

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 (48% illuminated). This places Waimanalo, HI in a neap tide cycle, so tidal ranges are near their weekly minimum 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