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:

01-Oct-2020 CHAST (m above MSL)
High Tides Low Tides
04:27 0.275 10:38 -0.263
16:50 0.264 23:03 -0.261

Add 0.035 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