Average monthly water temperature in New Plymouth, New Zealand
On this page you find the mean water temperature over the year in New Plymouth (Taranaki), New Zealand. Understand how water temperatures vary throughout the year.
In New Plymouth, cooler water temperatures are a year-round feature. The warmest month is March, averaging 18°C (64°F).
The coldest month, August, sees averages of 13°C (55°F). This does not make it a great month for visitors who enjoy swimming.
New Plymouth Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in New Plymouth - and find the best time to visit.
New Plymouth 3-Day Forecast
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full New Plymouth climate overview or explore weather in New Zealand.
Popular this month
Where to go in August - average daytime high across popular destinations.
Paihia
16°C (61°F) Auckland
16°C (61°F) Rotorua13°C (55°F) Christchurch
13°C (55°F) Wellington13°C (55°F) Nelson12°C (54°F) Taupo12°C (54°F) Queenstown4°C (39°F) 
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The Tongariro Crossing in New Zealand
It is called the most beautiful walk in New Zealand, the Tongariro Crossing. The official hiking season starts late October until end of April.
White-water sledge and raft in Rotorua
We recommend to white-water sledge and raft in Rotorua in summer (January, February) when the Glacier melt fills the rivers. This is the best time.