Tides Today & Tomorrow in Waimanalo, HI

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Waimanalo, HI.
Next low tide : in 4h 13m at 12:31 pm (1.1 ft)
Next high tide : 4:24 pm (1.4 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 - Jul 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:330.96:282.012:490.411:03 AM0.25:527:16Waning Gibbous1Wed
2Thu7:181.06:561.81:310.311:58 AM0.55:527:16Third Quarter2Thu
3Fri9:281.27:181.52:150.21:180.95:527:16Third Quarter3Fri
4Sat11:141.57:261.33:020.13:571.15:537:16Third Quarter4Sat
5Sun12:201.83:51-0.15:537:16Waning Crescent5Sun
6Mon1:082.04:39-0.25:537:16Waning Crescent6Mon
7Tue1:482.25:27-0.25:547:16Waning Crescent7Tue
8Wed2:242.36:11-0.39:540.85:547:16Waning Crescent8Wed
9Thu2:582.36:53-0.39:570.85:557:16New Moon9Thu
10Fri12:351.03:292.37:33-0.310:130.75:557:16New Moon10Fri
11Sat1:291.03:592.28:11-0.310:350.75:557:16New Moon11Sat
12Sun2:181.04:262.18:47-0.211:010.65:567:16New Moon12Sun
13Mon3:051.04:502.09:210.011:290.65:567:16Waxing Crescent13Mon
14Tue3:531.05:121.99:530.111:580.55:567:16Waxing Crescent14Tue
15Wed4:461.05:301.810:230.35:577:15Waxing Crescent15Wed
16Thu5:501.05:451.712:270.410:51 AM0.55:577:15Waxing Crescent16Thu
17Fri7:251.05:541.512:590.411:18 AM0.85:587:15First Quarter17Fri
18Sat10:221.25:511.41:340.311:50 AM1.05:587:15First Quarter18Sat
19Sun12:071.42:180.35:587:15First Quarter19Sun
20Mon12:361.63:120.25:597:14First Quarter20Mon
21Tue1:041.84:110.15:597:14Waxing Gibbous21Tue
22Wed1:342.05:04-0.16:007:14Waxing Gibbous22Wed
23Thu2:052.25:52-0.28:490.86:007:13Waxing Gibbous23Thu
24Fri2:372.36:36-0.39:060.86:007:13Full Moon24Fri
25Sat12:361.13:092.47:19-0.49:310.76:017:13Full Moon25Sat
26Sun1:361.23:412.48:01-0.410:020.66:017:12Full Moon26Sun
27Mon2:331.24:122.48:44-0.310:350.56:027:12Full Moon27Mon
28Tue3:311.34:422.29:27-0.111:090.46:027:11Waning Gibbous28Tue
29Wed4:331.35:082.110:130.211:450.36:027:11Waning Gibbous29Wed
30Thu5:441.45:291.811:020.56:037:10Waning Gibbous30Thu
31Fri7:121.45:421.612:240.212:000.86:037:10Third Quarter31Fri
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 2:27 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 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