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:

28-Jun-2026 CHAST (m above MSL)
High Tides Low Tides
03:55 0.345 10:22 -0.261
16:13 0.185 22:07 -0.271

Add -0.041 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