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Lake Matahina – current water temperature and swimming conditions

This page provides information about the current water temperature at Lake Matahina in Bay of Plenty Region. Here you can view recent temperature trends on a 30-day chart, check typical monthly water temperature ranges, and compare today’s reading with historical averages for this date. A 7-day water temperature forecast, local weather conditions, and an overview of swimming suitability are also included.

Lake Matahina
Lake Matahina © By Ulrich Lange, CC BY-SA 3.0

Current Water Temperature

19.9°C
Today
17.9°C
Yesterday
17.8°C
A Week Ago

The water temperature in Lake Matahina today is 20°C.

Water Temperature in Lake Matahina: Daily Trends, Historical Records, and Forecast

⚠️ A lake temperature of 15 to 20°C is considered cool to comfortable for swimming in Australia. On warm days with light winds, this range allows for relaxed swimming, especially in shallow or sheltered areas. Comfort depends strongly on air temperature and sunshine, as cooler or overcast weather can still make the water feel chilly. This range is common during spring and early summer.

Water Temperature Over the Last 30 Days

While water temperatures in Lake Matahina declined overall during the past month, they have shown a noticeable rebound over the last week.

According to our forecast, the water temperature in Lake Matahina will be 20.0°C in the next 7 days. See the table below for daily data for the upcoming week.

Table of Daily Water Temperature Data

Date Current Average Forecast
Mar 2218.0°C18.0°C
Mar 2317.8°C18.0°C
Mar 2417.8°C18.0°C
Mar 2519.8°C18.0°C
Mar 2619.7°C18.0°C
Mar 2717.7°C18.0°C
Mar 2817.9°C18.0°C
Mar 2917.9°C18.0°C
Mar 3019.9°C18.0°C19.9°C
Mar 3118.0°C19.9°C
Apr 118.0°C19.9°C
Apr 218.0°C19.9°C
Apr 318.0°C20.0°C
Apr 418.0°C20.0°C
Apr 518.0°C20.0°C
Apr 618.0°C20.0°C

* Current - Actual water temperature value

** Average - Average water temperature on this day in recent years

*** Forecast - Our water temperature forecast

Actual lake water temperatures may differ from the reported values by several degrees, particularly during periods of strong winds or rapid weather changes. Wind can mix surface and deeper layers in a lake, bringing cooler water to the surface, while shallow areas may warm more quickly under direct sunlight. Air temperature, sunshine, and cloud cover strongly influence how quickly a lake heats up or cools down. These factors can lead to noticeable temperature variations across different parts of the lake.

Our forecast is based on a proprietary mathematical model that considers real-time lake temperature observations, historical trends, seasonal cycles, wind strength and direction, and region-specific air temperature. To enhance accuracy, we also incorporate data from nearby monitored locations and comparable lakes within Australia.

Monthly Water Temperature Range (Min, Max & Average)

Month Today Yesterday A Week Ago
January16°C20°C24°C
February16°C20°C23°C
March15°C18°C21°C
April12°C16°C19°C
May10°C13°C16°C
June8°C11°C14°C
July7°C10°C13°C
August8°C11°C14°C
September10°C13°C16°C
October11°C15°C18°C
November13°C17°C21°C
December14°C18°C22°C

Lake Matahina: Weather Forecast

March 30

12°C / 20°C
overcast
rain: 28% | wind: 22 km/h

March 31

13°C / 20°C
slight rain showers
rain: 35% | wind: 10 km/h

April 1

13°C / 19°C
slight rain showers
rain: 21% | wind: 9 km/h

April 2

12°C / 20°C
fog
rain: 0% | wind: 7 km/h

April 3

12°C / 20°C
fog
rain: 3% | wind: 10 km/h

April 4

11°C / 19°C
overcast
rain: 8% | wind: 9 km/h

Location & Local Information

Lake Matahina, in the Bay of Plenty Region east of Whakatāne, is a hydro lake formed on the Rangitaiki River. Surrounded by steep hills and native bush, it sits in a warm inland climate that influences seasonal water temperatures. In winter, surface temperatures are generally around 10–14°C. During spring, the lake gradually warms to approximately 14–18°C as air temperatures increase. In summer, particularly in January and February, sheltered near-shore areas can reach about 19–24°C on hot, settled days, while deeper sections remain slightly cooler. By autumn, temperatures usually ease back to between 15 and 19°C. River inflows and wind can cause short-term changes in surface conditions.

Swimming Conditions

Swimming is allowed at suitable access points around Lake Matahina, and it is enjoyed during the warmer months when water temperatures exceed 19°C. The most comfortable conditions are typically in mid to late summer on calm days with light winds. However, swimmers should be mindful of variable depths, submerged features and occasional boat activity. Water clarity may also change after heavy rainfall due to increased river flow. Checking local water quality information and choosing recognised access areas helps ensure a safer and more enjoyable freshwater swimming experience.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Lake Matahina?
The water temperature in Lake Matahina today is 20°C.
What is the water temperature in Lake Matahina during the summer months?
In summer, water temperatures in Lake Matahina at Wangi Wangi typically range from 14°C to 24°C.
Is it possible to swim in Lake Matahina (Bay of Plenty Region)?
Yes — you can swim in Lake Matahina, especially on warm, calm summer days, but bear in mind it’s a hydro reservoir so the water is often cold and levels can change quickly. Always check Bay of Plenty Regional Council or local signage for water quality and closures, keep well away from the dam, spillways and intakes, and consider wearing a lifejacket or staying close to shore because of submerged hazards and sudden releases.