Forecasting Tides at Sites around Chatham Islands

Specify a date and tide station and this routine will calculate the tides for that day.

Input Data

Date: yyyymmdd format.

Time Base
Chatham Islands Standard Time (CHAST)
Chatham Islands Daylight Time (CHADT)
CHADT goes from the last Sunday in September to the first Sunday in April.

Select a Station:

Tides for Waitangi Bay:

08-May-2021 CHAST (m above MSL)
High Tides Low Tides
02:37 0.317 08:50 -0.294
14:57 0.273 21:05 -0.290

Add -0.228 m for storm surge.
Storm surge is explained here

Please address enquiries to:
Derek Goring
Mulgor Consulting Ltd
Christchurch
New Zealand

This webpage is running on a Raspberry Pi