Tides Today & Tomorrow in Waimanalo, HI

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in Waimanalo, HI.
Next low tide (tomorrow) : 1:21 am (0.3 ft)
Next high tide : in 2h 06m at 10:15 am (1.5 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 - Feb 1951

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:361.84:34-0.27:086:20Waning Crescent1Thu
2Fri1:182.15:38-0.47:076:21Waning Crescent2Fri
3Sat1:562.211:44 AM0.89:050.66:32-0.57:076:21Waning Crescent3Sat
4Sun2:322.312:570.99:110.57:19-0.57:076:22New Moon4Sun
5Mon3:052.31:521.09:290.58:03-0.57:066:23New Moon5Mon
6Tue3:352.32:411.19:530.48:43-0.37:066:23New Moon6Tue
7Wed4:022.13:281.210:190.39:21-0.27:056:24New Moon7Wed
8Thu4:252.04:161.210:460.29:570.17:056:24Waxing Crescent8Thu
9Fri4:421.85:061.211:130.110:310.37:046:25Waxing Crescent9Fri
10Sat4:531.66:041.211:390.111:050.67:046:25Waxing Crescent10Sat
11Sun4:531.47:211.212:070.17:036:26First Quarter11Sun
12Mon4:361.310:131.212:370.17:036:27First Quarter12Mon
13Tue3:181.212:241.01:200.17:026:27First Quarter13Tue
14Wed12:271.42:410.17:026:28First Quarter14Wed
15Thu12:561.54:210.17:016:28First Quarter15Thu
16Fri1:201.75:270.07:006:29Waxing Gibbous16Fri
17Sat1:431.811:31 AM0.79:240.56:12-0.27:006:29Waxing Gibbous17Sat
18Sun2:051.912:280.88:530.56:48-0.36:596:30Waxing Gibbous18Sun
19Mon2:261.91:090.98:530.57:22-0.36:586:30Waxing Gibbous19Mon
20Tue2:472.01:481.09:040.47:54-0.36:586:31Full Moon20Tue
21Wed3:082.02:281.19:200.38:27-0.26:576:31Full Moon21Wed
22Thu3:292.03:111.29:400.29:02-0.16:566:31Full Moon22Thu
23Fri3:481.93:561.310:020.19:390.16:566:32Waning Gibbous23Fri
24Sat4:061.74:461.410:270.010:190.36:556:32Waning Gibbous24Sat
25Sun4:201.65:441.410:54-0.111:060.66:546:33Waning Gibbous25Sun
26Mon4:281.47:041.411:26-0.16:536:33Waning Gibbous26Mon
27Tue4:211.29:121.512:090.812:05-0.26:536:34Third Quarter27Tue
28Wed11:131.61:03-0.16:526:34Third Quarter28Wed
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 5:48 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 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