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 8h 23m 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 - Aug 1951

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:351.03:052.27:20-0.29:340.76:037:10New Moon1Wed
2Thu1:201.13:302.27:53-0.29:530.76:047:09New Moon2Thu
3Fri2:031.13:532.28:24-0.110:160.66:047:09New Moon3Fri
4Sat2:461.24:152.18:550.010:390.66:057:08New Moon4Sat
5Sun3:321.24:352.09:270.111:030.56:057:07Waxing Crescent5Sun
6Mon4:231.24:521.910:010.311:290.46:057:07Waxing Crescent6Mon
7Tue5:221.35:061.810:390.611:580.36:067:06Waxing Crescent7Tue
8Wed6:411.35:141.611:260.86:067:06First Quarter8Wed
9Thu8:391.45:071.512:350.212:441.16:067:05First Quarter9Thu
10Fri10:481.71:240.16:077:04First Quarter10Fri
11Sat12:001.92:330.16:077:04First Quarter11Sat
12Sun12:472.23:540.06:077:03Waxing Gibbous12Sun
13Mon1:282.35:06-0.28:360.86:087:02Waxing Gibbous13Mon
14Tue2:052.46:04-0.38:400.76:087:02Waxing Gibbous14Tue
15Wed12:261.12:392.56:54-0.38:590.76:087:01Full Moon15Wed
16Thu1:261.23:112.47:39-0.39:240.66:097:00Full Moon16Thu
17Fri2:201.33:392.38:22-0.29:510.56:097:00Full Moon17Fri
18Sat3:111.44:042.29:040.010:200.46:096:59Waning Gibbous18Sat
19Sun4:031.54:242.09:450.310:490.36:106:58Waning Gibbous19Sun
20Mon4:571.54:371.710:270.511:170.26:106:57Waning Gibbous20Mon
21Tue5:561.54:391.611:100.811:470.26:106:56Waning Gibbous21Tue
22Wed7:131.54:211.412:051.06:116:56Third Quarter22Wed
23Thu9:151.512:200.26:116:55Third Quarter23Thu
24Fri11:201.71:040.36:116:54Third Quarter24Fri
25Sat12:171.82:220.36:126:53Third Quarter25Sat
26Sun12:521.94:020.36:126:52Waning Crescent26Sun
27Mon1:192.05:100.28:410.76:126:52Waning Crescent27Mon
28Tue1:432.05:570.18:230.76:126:51Waning Crescent28Tue
29Wed12:201.02:042.16:330.08:250.76:136:50Waning Crescent29Wed
30Thu12:581.22:252.17:060.08:370.66:136:49New Moon30Thu
31Fri1:351.32:452.17:380.08:530.56:136:48New Moon31Fri
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