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Secondary port · referenced to Marsden Point

Unahi Jetty tide times

Unahi Jetty has no predictions of its own. These times are Marsden Point's, shifted by the difference LINZ publishes for Unahi Jetty (+1h 2m at high water, +1h 17m at low water), with heights scaled by the published ratio of 0.95.

Predictions — not for navigation

These are LINZ's astronomical predictions. Actual water levels differ with barometric pressure, wind and storm surge — commonly by 0.3 m, and by a metre or more in a severe low. Do not use this site for navigation or for any decision where being wrong is dangerous. For navigation use the official LINZ tide tables and current charts. Heights are metres above chart datum, not above sea level, and times are New Zealand local time including daylight saving.

How exact is this? The figures above are LINZ's mean differences. The real difference varies through the month, between +0004 to +0152 at high water and +0029 to +0210 at low water. Treat a derived time as ±20 minutes, and read how secondary ports work.

Friday 7 August 2026

High 02:20 2.4m
Low 08:52 0.7m
High 14:58 2.3m
Low 21:19 0.9m

Saturday 8 August 2026

High 03:17 2.4m
Low 09:51 0.7m
High 16:02 2.3m
Low 22:25 0.9m

Sunday 9 August 2026

High 04:20 2.3m
Low 10:54 0.7m
High 17:09 2.4m
Low 23:33 0.9m

Monday 10 August 2026

High 05:27 2.4m
Low 12:00 0.6m
High 18:14 2.5m
Low 00:38 0.8m

Tuesday 11 August 2026

High 06:34 2.4m
Low 13:02 0.6m
High 19:15 2.6m

Wednesday 12 August 2026

Low 01:39 0.7m
High 07:36 2.5m
Low 14:01 0.5m
High 20:11 2.7m

Thursday 13 August 2026

Low 02:36 0.6m
High 08:34 2.6m
Low 14:55 0.4m
High 21:03 2.7m

Source · LINZ tide predictions · Derived from Marsden Point using LINZ secondary-port differences · Reviewed Aug 2026 · Method

Tidal levels at Unahi Jetty

LevelHeight above chart datum
Mean high water springs (MHWS)2.30 m
Mean high water neaps (MHWN)1.90 m
Mean sea level (MSL)1.20 m
Mean low water neaps (MLWN)0.60 m
Mean low water springs (MLWS)0.20 m

Source · LINZ tide predictions · LINZ secondary ports table 2026–27 · Reviewed Aug 2026 · Method

← Marsden Point, the reference port

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