Auau Channel tidal current predictions
Slack water now. Slack at 4:49 AM, then ebb to 0.9 kt at 8:43 AM.
Now
Today, Sun, Sep 27, at 26 ft deep.
- Now
- SlackTurning
- Next slack
- 4:49 AMHST
- Next max flood
- 0.7 kt3:27 PM
- Next max ebb
- 0.9 kt8:43 AM
Knots along the channel: above the line the flood, running in toward SSE (168°); below it the ebb, running out toward NNW (347°). Times are Hawaii-Aleutian Standard Time. Today: slack 1:56 AM, flood 0.2 kt 3:24 AM, slack 4:49 AM, ebb 0.9 kt 8:43 AM, slack 12:26 PM, flood 0.7 kt 3:27 PM, slack 6:08 PM, ebb 1.2 kt 9:43 PM.
Alerts in force1
National Weather Service marine and coastal products at this station’s position.
- Gale Warning Gale Warning issued September 27 at 3:54AM HST until September 27 at 6:00PM HST by NWS Honolulu HIUntil 6:00 PM
Full text
* WHAT...East winds up to 35 kt and seas 10 to 15 feet. * WHERE...All Hawaiian coastal waters. * WHEN...Until 6 PM HST this evening. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels.
A Gale Warning means winds of 34 to 47 knots are imminent or occurring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions.
7-day current table
Strongest flood this week 0.8 kt, Mon, Sep 28 at 3:54 PM. Strongest ebb 1.3 kt, Mon, Sep 28 at 10:16 PM.
| Time | Event | Speed | Toward |
|---|---|---|---|
| Sun, Sep 27 | |||
| 1:56 AM | Slack water | ||
| 3:24 AM | Maximum flood | 0.2 kt | SSE (168°) |
| 4:49 AM | Slack water | ||
| 8:43 AM | Maximum ebb | 0.9 kt | NNW (347°) |
| 12:26 PM | Slack water | ||
| 3:27 PM | Maximum flood | 0.7 kt | SSE (168°) |
| 6:08 PM | Slack water | ||
| 9:43 PM | Maximum ebb | 1.2 kt | NNW (347°) |
| Mon, Sep 28 | |||
| 2:32 AM | Slack water | ||
| 3:58 AM | Maximum flood | 0.2 kt | SSE (168°) |
| 5:21 AM | Slack water | ||
| 9:13 AM | Maximum ebb | 0.9 kt | NNW (347°) |
| 12:45 PM | Slack water | ||
| 3:54 PM | Maximum flood | 0.8 kt | SSE (168°) |
| 6:39 PM | Slack water | ||
| 10:16 PM | Maximum ebb | 1.3 kt | NNW (347°) |
| Tue, Sep 29 | |||
| 3:14 AM | Slack water | ||
| 4:33 AM | Maximum flood | 0.2 kt | SSE (168°) |
| 5:51 AM | Slack water | ||
| 9:46 AM | Maximum ebb | 0.9 kt | NNW (347°) |
| 1:11 PM | Slack water | ||
| 4:24 PM | Maximum flood | 0.8 kt | SSE (168°) |
| 7:12 PM | Slack water | ||
| 10:52 PM | Maximum ebb | 1.3 kt | NNW (347°) |
| Wed, Sep 30 | |||
| 4:08 AM | Slack water | ||
| 6:15 AM | Slack water | ||
| 10:21 AM | Maximum ebb | 0.8 kt | NNW (347°) |
| 1:45 PM | Slack water | ||
| 4:58 PM | Maximum flood | 0.7 kt | SSE (168°) |
| 7:47 PM | Slack water | ||
| 11:34 PM | Maximum ebb | 1.2 kt | NNW (347°) |
| Thu, Oct 1 | |||
| 5:56 AM | Slack water | ||
| 10:59 AM | Maximum ebb | 0.7 kt | NNW (347°) |
| 2:26 PM | Slack water | ||
| 5:37 PM | Maximum flood | 0.6 kt | SSE (168°) |
| 8:27 PM | Slack water | ||
| Fri, Oct 2 | |||
| 12:27 AM | Maximum ebb | 1.0 kt | NNW (347°) |
| 7:05 AM | Maximum ebb | 0.1 kt | NNW (347°) |
| 11:40 AM | Maximum ebb | 0.5 kt | NNW (347°) |
| 3:21 PM | Slack water | ||
| 6:31 PM | Maximum flood | 0.3 kt | SSE (168°) |
| 9:14 PM | Slack water | ||
| Sat, Oct 3 | |||
| 1:43 AM | Maximum ebb | 0.9 kt | NNW (347°) |
| 8:56 AM | Maximum ebb | 0.2 kt | NNW (347°) |
| 12:44 PM | Maximum ebb | 0.4 kt | NNW (347°) |
| 5:03 PM | Slack water | ||
| 8:10 PM | Maximum flood | 0.2 kt | SSE (168°) |
| 10:19 PM | Slack water | ||
Other depths
NOAA predicts the current at more than one depth here. This page is for the shallowest; the water deeper down turns at different times and runs at different speeds.
| Depth | Strongest flood today | Strongest ebb today |
|---|---|---|
| 26 ft | 0.7 kt 3:27 PM | 1.2 kt 9:43 PM |
| 105 ft | 0.7 kt 3:24 PM | 1.1 kt 9:32 PM |
| 210 ft | 0.6 kt 3:03 PM | 0.7 kt 8:31 AM |
What this means
The flood is the tidal current running in from the sea, the ebb the current running back out. Slack water is the short turn between them, when the current is weakest: the time to cross a strong channel, anchor, or dive. Slack in a channel is not the time of high or low tide; it can come hours after.
Speeds are knots along the channel's main axis, and directions are degrees true toward which the water flows, as NOAA prints its tables. A current against the wind stands the waves up steep and close together.
Predictions are astronomical: the moon and the sun, not the weather. Strong wind, river flow after heavy rain and storm surge all change the real current.
Nearby5
The closest other NOAA current stations, nearest first.
More for this place
Sources
Tidal current predictions from NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS), station HAI1119, bin 29: original at NOAA. Marine alerts from the National Weather Service.