Tides Today & Tomorrow in Napoopoo, Kealakekua Bay, HI

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Napoopoo, Kealakekua Bay, HI.
Next low tide : in 5h 33m at 1:47 am (0.2 ft)
Next high tide : 9:56 am (1.6 ft)
Sunset today : 6:49 pm
Sunrise tomorrow : 6:05 am
Moon phase : First Quarter (39% illuminated)
Tide Station Location : Station #1618021
Common Questions About Tides

Napoopoo, Kealakekua Bay, HI Tides - Jun 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:410.89:231.83:440.31:550.35:446:58First Quarter1Tue
2Wed10:340.910:251.74:440.23:310.45:446:59First Quarter2Wed
3Thu11:541.211:201.75:320.15:070.55:446:59First Quarter3Thu
4Fri12:571.56:130.06:280.55:446:59Waxing Gibbous4Fri
5Sat12:111.61:491.86:52-0.17:380.55:447:00Waxing Gibbous5Sat
6Sun1:001.52:342.07:30-0.28:370.45:447:00Waxing Gibbous6Sun
7Mon1:471.43:152.28:06-0.39:300.45:447:00Full Moon7Mon
8Tue2:311.33:552.38:43-0.410:200.45:447:01Full Moon8Tue
9Wed3:121.24:352.39:19-0.311:100.35:447:01Full Moon9Wed
10Thu3:521.15:162.39:56-0.311:590.35:447:01Full Moon10Thu
11Fri4:331.05:572.210:34-0.25:447:02Waning Gibbous11Fri
12Sat5:180.96:382.112:450.311:14 AM-0.15:447:02Waning Gibbous12Sat
13Sun6:070.97:191.91:310.411:54 AM0.15:457:02Waning Gibbous13Sun
14Mon7:030.88:011.82:190.412:370.25:457:03Waning Gibbous14Mon
15Tue8:180.88:491.63:140.41:240.45:457:03Third Quarter15Tue
16Wed10:090.99:431.54:100.32:340.55:457:03Third Quarter16Wed
17Thu11:371.010:351.44:570.34:210.75:457:03Third Quarter17Thu
18Fri12:371.25:350.25:490.75:457:04Third Quarter18Fri
19Sat1:231.56:100.17:020.65:467:04Waning Crescent19Sat
20Sun12:061.22:001.76:430.08:000.65:467:04Waning Crescent20Sun
21Mon12:501.22:341.97:17-0.18:470.55:467:04Waning Crescent21Mon
22Tue1:341.23:082.07:51-0.29:290.55:467:05Waning Crescent22Tue
23Wed2:161.13:432.28:27-0.310:120.45:467:05New Moon23Wed
24Thu2:561.14:202.39:03-0.310:560.45:477:05New Moon24Thu
25Fri3:371.14:592.39:41-0.311:420.45:477:05New Moon25Fri
26Sat4:201.15:402.310:22-0.35:477:05Waxing Crescent26Sat
27Sun5:091.06:232.312:280.311:06 AM-0.25:477:05Waxing Crescent27Sun
28Mon6:051.07:062.21:130.311:54 AM0.05:487:06Waxing Crescent28Mon
29Tue7:101.07:502.02:010.312:460.25:487:06Waxing Crescent29Tue
30Wed8:331.08:401.82:540.31:480.45:487:06First Quarter30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (1618021)

Common Questions About Napoopoo, Kealakekua Bay, HI Tides

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What time does the tide turn (slack tide) in Napoopoo, Kealakekua Bay, HI today?

Slack tide in Napoopoo, Kealakekua Bay, HI is approximately 5:51 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 Napoopoo, Kealakekua Bay, HI?

Napoopoo, Kealakekua Bay, 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 Napoopoo, Kealakekua Bay, 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 Napoopoo, Kealakekua Bay, HI?

Tide predictions for Napoopoo, Kealakekua Bay, 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 Napoopoo, Kealakekua Bay, HI?

Tide data for Napoopoo, Kealakekua Bay, HI is sourced from NOAA Station #1618021. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=1618021.

What is the moon phase in Napoopoo, Kealakekua Bay, HI tonight?

Tonight the moon over Napoopoo, Kealakekua Bay, HI is First Quarter (39% illuminated). This places Napoopoo, Kealakekua Bay, 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