Mataura River – current water temperature and swimming conditions
This page provides information about the current water temperature at Mataura River in Southland 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.
Current Water Temperature
The water temperature in Mataura River today is 7°C.
Water Temperature in Mataura River: Daily Trends, Historical Records, and Forecast
❌ River water below 10°C is very cold and generally unsuitable for swimming for most people. Even on a warm day, rivers at this temperature can quickly cause cold shock and numbness due to flowing water and shaded banks. Swimming is usually limited to brief cold dips or experienced cold-water swimmers. Overcast weather or cool air temperatures make river swimming especially uncomfortable and potentially unsafe.
Water Temperature Over the Last 30 Days
Water temperatures in Mataura River have been gradually cooling over the past month, with a further drop recorded during the last week.
According to our forecast, the water temperature in Mataura River will be 7.5°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 |
|---|---|---|---|
| Aug 19 | 13.0°C | 7.6°C | |
| Aug 20 | 13.1°C | 7.6°C | |
| Aug 21 | 13.0°C | 7.6°C | |
| Aug 22 | 12.6°C | 7.6°C | |
| Aug 23 | 12.8°C | 7.6°C | |
| Aug 24 | 12.8°C | 7.6°C | |
| Aug 25 | 7.1°C | 7.6°C | |
| Aug 26 | 7.1°C | 7.6°C | |
| Aug 27 | 7.1°C | 7.6°C | 7.1°C |
| Aug 28 | 7.6°C | 7.2°C | |
| Aug 29 | 7.6°C | 7.2°C | |
| Aug 30 | 7.6°C | 7.3°C | |
| Aug 31 | 7.6°C | 7.4°C | |
| Sep 1 | 7.6°C | 7.4°C | |
| Sep 2 | 7.6°C | 7.5°C | |
| Sep 3 | 7.6°C | 7.5°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual river water temperatures may vary by several degrees from the reported values, particularly after heavy rainfall or periods of changing weather. Rainfall, river flow rates, and runoff from cooler upstream areas can significantly affect water temperature, especially in flowing sections and shaded stretches. Air temperature and cloud cover also play an important role, with warm, sunny conditions helping rivers warm up more quickly. As a result, noticeable temperature differences can occur along the same river.
Our forecast is based on a proprietary mathematical model that takes into account real-time river temperature changes, historical data, seasonal patterns, river flow conditions, recent rainfall, and local air temperature. We also factor in broader weather conditions specific to each region of New Zealand to improve accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Today | Yesterday | A Week Ago |
|---|---|---|---|
| January | 10°C | 16°C | 21°C |
| February | 11°C | 16°C | 20°C |
| March | 9°C | 14°C | 18°C |
| April | 4°C | 10°C | 15°C |
| May | 5°C | 9°C | 13°C |
| June | 2°C | 6°C | 10°C |
| July | 0°C | 4°C | 7°C |
| August | 1°C | 6°C | 10°C |
| September | 3°C | 7°C | 11°C |
| October | 4°C | 10°C | 15°C |
| November | 7°C | 12°C | 17°C |
| December | 9°C | 14°C | 19°C |
Mataura River: Water Temperature by Location
Mataura River: Weather Forecast
August 28
August 29
August 30
August 31
September 1
Location & Local Information
Source Mataura Saddle • location Eyre Mountains • coordinates 45°18′58″S 168°25′12″E Mouth Toetoes Bay • location Pacific Ocean • coordinates 46°34′S 168°43′E • elevation Sea level Length 240 km (150 mi)
The Mataura River flows from the hills of Southland through wide pastoral plains before reaching the coast, making it an important river within the Southland Region. Water temperatures are shaped by the cool southern climate and steady river flow. In summer, the Mataura River typically reaches around 14–18 °C, which feels cool but refreshing during warm weather. Spring and autumn usually see temperatures between 10–14 °C. In winter, the river becomes very cold, often dropping to about 6–9 °C, reflecting low air temperatures and limited solar warming.
Swimming Conditions
Swimming in the Mataura River is allowed and does take place during summer, particularly at known calm spots and shallow river beaches used by locals. Even at its warmest, the water remains on the cool side, so swimming is usually brief rather than extended. The river is well known for its clear water during settled conditions, which adds to its appeal in warm weather. However, after heavy rain, flows increase quickly and water clarity can reduce, making swimming less suitable. During winter and much of spring and autumn, cold temperatures and stronger currents generally discourage swimming. Overall, the Mataura River offers refreshing summer swimming opportunities for those comfortable with cooler water, while for most of the year it is better enjoyed for its scenic value and riverside recreation rather than regular swimming.