Tides Today & Tomorrow in Waimanalo, HI

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Waimanalo, HI.
Next low tide : in 0m at 2:49 am (0.3 ft)
Next high tide : 12:32 pm (1.8 ft)
Sunset today : 6:56 pm
Sunrise tomorrow : 6:11 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #1612376
Common Questions About Tides

Waimanalo, HI Tides - Jul 1949

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:090.87:131.91:510.511:36 AM0.35:527:16First Quarter1Fri
2Sat8:340.97:451.72:310.412:420.65:527:16First Quarter2Sat
3Sun10:401.28:141.53:110.22:310.95:527:16First Quarter3Sun
4Mon11:581.68:401.33:520.05:031.05:537:16First Quarter4Mon
5Tue12:511.94:32-0.17:161.05:537:16Waxing Gibbous5Tue
6Wed1:342.25:14-0.25:537:16Waxing Gibbous6Wed
7Thu2:142.35:55-0.35:547:16Waxing Gibbous7Thu
8Fri2:522.46:37-0.410:020.85:547:16Full Moon8Fri
9Sat3:292.47:18-0.410:270.85:557:16Full Moon9Sat
10Sun12:551.04:042.37:59-0.310:540.75:557:16Full Moon10Sun
11Mon1:501.04:372.28:38-0.311:240.75:557:16Full Moon11Mon
12Tue2:411.05:082.19:15-0.111:550.75:567:16Waning Gibbous12Tue
13Wed3:311.05:352.09:500.05:567:16Waning Gibbous13Wed
14Thu4:260.95:581.912:280.610:22 AM0.25:567:16Waning Gibbous14Thu
15Fri5:320.96:171.71:020.510:51 AM0.45:577:15Waning Gibbous15Fri
16Sat7:080.96:291.61:360.511:19 AM0.75:577:15Third Quarter16Sat
17Sun9:461.16:331.42:130.411:48 AM0.95:587:15Third Quarter17Sun
18Mon12:031.32:520.32:341.15:587:15Third Quarter18Mon
19Tue12:331.53:350.25:587:15Third Quarter19Tue
20Wed1:001.84:190.15:597:14Waning Crescent20Wed
21Thu1:291.95:030.05:597:14Waning Crescent21Thu
22Fri2:002.15:46-0.16:007:14Waning Crescent22Fri
23Sat2:332.26:28-0.39:260.86:007:13Waning Crescent23Sat
24Sun3:072.37:10-0.39:460.86:007:13New Moon24Sun
25Mon1:011.03:412.47:51-0.410:140.76:017:13New Moon25Mon
26Tue1:581.14:152.48:32-0.410:450.76:017:12New Moon26Tue
27Wed2:551.14:472.39:15-0.211:190.66:027:12Waxing Crescent27Wed
28Thu3:561.15:172.29:580.011:540.56:027:11Waxing Crescent28Thu
29Fri5:041.25:442.010:430.26:027:11Waxing Crescent29Fri
30Sat6:301.26:061.812:310.311:35 AM0.66:037:10First Quarter30Sat
31Sun8:241.36:201.61:110.212:460.96:037:10First Quarter31Sun
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 7:40 am — 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 67% 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 (67% 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