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 2h 12m 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 - Nov 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:412.31:111.48:350.87:46-0.36:345:54Full Moon1Sat
2Sun3:202.41:281.39:290.88:14-0.36:345:54Full Moon2Sun
3Mon4:012.31:401.210:270.98:44-0.26:355:53Waning Gibbous3Mon
4Tue4:432.21:411.111:390.99:16-0.16:355:53Waning Gibbous4Tue
5Wed5:292.19:480.06:365:52Waning Gibbous5Wed
6Thu6:232.010:220.26:365:52Waning Gibbous6Thu
7Fri7:271.810:590.36:375:51Third Quarter7Fri
8Sat8:361.86:375:51Third Quarter8Sat
9Sun9:331.711:260.812:030.56:090.56:385:51Third Quarter9Sun
10Mon10:141.72:250.65:470.56:385:50Third Quarter10Mon
11Tue12:031.110:43 AM1.64:090.75:480.36:395:50Waning Crescent11Tue
12Wed12:311.311:07 AM1.65:180.75:580.26:405:49Waning Crescent12Wed
13Thu12:581.511:29 AM1.56:120.86:120.16:405:49Waning Crescent13Thu
14Fri1:271.811:51 AM1.46:590.86:30-0.16:415:49Waning Crescent14Fri
15Sat1:572.012:131.37:450.86:53-0.26:415:49New Moon15Sat
16Sun2:302.212:371.38:310.87:20-0.36:425:48New Moon16Sun
17Mon3:072.31:021.29:200.87:52-0.36:435:48New Moon17Mon
18Tue3:482.31:281.110:160.88:27-0.46:435:48New Moon18Tue
19Wed4:342.31:511.111:230.99:07-0.36:445:48Waxing Crescent19Wed
20Thu5:242.32:051.012:520.96:455:48Waxing Crescent20Thu
21Fri6:202.210:38-0.16:455:47Waxing Crescent21Fri
22Sat7:182.111:340.26:465:47First Quarter22Sat
23Sun8:152.08:140.74:200.56:475:47First Quarter23Sun
24Mon9:061.910:431.012:530.44:340.46:475:47First Quarter24Mon
25Tue9:491.811:551.42:460.74:570.26:485:47First Quarter25Tue
26Wed10:251.64:400.85:220.06:485:47Waxing Gibbous26Wed
27Thu12:451.710:56 AM1.46:080.95:49-0.16:495:47Waxing Gibbous27Thu
28Fri1:262.011:22 AM1.37:180.96:17-0.36:505:47Waxing Gibbous28Fri
29Sat2:042.211:46 AM1.28:180.96:47-0.36:505:47Full Moon29Sat
30Sun2:412.312:101.19:120.97:18-0.46:515:47Full Moon30Sun
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