It has been since Monday.  Opening hours are as stated below, from the KCDC site.  The picture of Hayley is from the Destination Waikanae facebook page.

The season is 20 weeks long each summer and is generally from the first weekend in November until the end of March.

Waikanae Pool Opening Hours

Waikanae Pool is open every day except for Christmas Day during the season.

Monday, Thursday                               6am-6pm
Tuesday, Wednesday, Friday                6am-8pm
Saturday, Sunday & Public Holidays      8am-8pm
(13 December – 15 February)               6am-8pm

Please note:  All swimmers are asked to get out of the pools 15 minutes prior to closing to allow time to get dry and changed by the time the facility closes.