Tides Today & Tomorrow in Waimanalo, HI

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Waimanalo, HI.
Next low tide (tomorrow) : 12:31 am (0.3 ft)
Next high tide : in 3h 27m at 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 - Dec 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:172.412:361.010:020.87:51-0.36:525:47Full Moon1Mon
2Tue3:532.31:041.010:520.88:26-0.36:525:48Full Moon2Tue
3Wed4:302.21:321.011:440.89:01-0.26:535:48Waning Gibbous3Wed
4Thu5:082.11:560.912:430.86:545:48Waning Gibbous4Thu
5Fri5:472.010:080.16:545:48Waning Gibbous5Fri
6Sat6:251.910:380.36:555:48Waning Gibbous6Sat
7Sun7:031.811:030.46:565:48Third Quarter7Sun
8Mon7:381.74:010.56:565:49Third Quarter8Mon
9Tue8:111.64:170.46:575:49Third Quarter9Tue
10Wed12:171.18:43 AM1.42:140.94:350.26:575:49Third Quarter10Wed
11Thu12:331.39:15 AM1.34:511.04:570.16:585:50Waning Crescent11Thu
12Fri12:561.69:50 AM1.26:220.95:22-0.16:595:50Waning Crescent12Fri
13Sat1:231.810:28 AM1.27:240.95:52-0.26:595:50Waning Crescent13Sat
14Sun1:542.111:09 AM1.18:130.86:25-0.37:005:51Waning Crescent14Sun
15Mon2:282.211:53 AM1.18:580.87:02-0.47:005:51New Moon15Mon
16Tue3:062.312:391.09:420.87:42-0.57:015:51New Moon16Tue
17Wed3:462.41:271.010:280.88:24-0.57:025:52New Moon17Wed
18Thu4:282.42:181.011:150.79:07-0.47:025:52Waxing Crescent18Thu
19Fri5:102.43:150.912:030.77:035:53Waxing Crescent19Fri
20Sat5:512.34:240.912:510.67:035:53Waxing Crescent20Sat
21Sun6:302.15:590.81:380.57:045:54Waxing Crescent21Sun
22Mon7:071.98:210.92:240.37:045:54First Quarter22Mon
23Tue7:391.710:411.212:270.63:090.27:055:55First Quarter23Tue
24Wed8:071.52:160.93:520.07:055:55First Quarter24Wed
25Thu12:031.68:24 AM1.35:241.04:33-0.17:065:56Waxing Gibbous25Thu
26Fri12:531.95:13-0.27:065:56Waxing Gibbous26Fri
27Sat1:322.15:52-0.37:065:57Waxing Gibbous27Sat
28Sun2:072.26:30-0.37:075:58Waxing Gibbous28Sun
29Mon2:402.311:38 AM0.910:050.77:08-0.47:075:58Full Moon29Mon
30Tue3:112.312:390.910:140.77:45-0.47:085:59Full Moon30Tue
31Wed3:422.21:290.910:320.78:22-0.37:085:59Full Moon31Wed
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 8:27 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