Average monthly water temperature in Porirua, New Zealand
On this page you find the mean water temperature over the year in Porirua (Wellington), New Zealand. Understand how water temperatures vary throughout the year.
Water temperatures in Porirua stay on the cooler side throughout the year. The warmest month, January, averages 16°C (61°F).
The coldest water temperature month is August, averaging 11°C (52°F). These cooler conditions are not the best for swimming enthusiasts.