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 12°C.
Water Temperature in Mataura River: Daily Trends, Historical Records, and Forecast
⚠️ River water between 10 and 15°C is cold but manageable for short swims, especially on sunny days with warm air temperatures. The moving nature of a river can make the water feel colder than the actual reading, particularly in shaded or deeper sections. Casual swimming is usually brief, with wetsuits often preferred. Windy or cool weather can significantly reduce comfort, even when the air temperature is mild.
Water Temperature Over the Last 30 Days
Over the past 30 days, water temperatures in Mataura River have generally increased, although a slight cooling trend has set in over the last week.
According to our forecast, the water temperature in Mataura River will be 9.4°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 |
|---|---|---|---|
| May 6 | 11.5°C | 9.0°C | |
| May 7 | 11.5°C | 9.0°C | |
| May 8 | 12.9°C | 9.0°C | |
| May 9 | 12.9°C | 9.0°C | |
| May 10 | 12.9°C | 9.0°C | |
| May 11 | 12.9°C | 9.0°C | |
| May 12 | 12.7°C | 9.0°C | |
| May 13 | 12.7°C | 9.0°C | |
| May 14 | 12.3°C | 9.0°C | 12.3°C |
| May 15 | 9.0°C | 11.9°C | |
| May 16 | 9.0°C | 11.5°C | |
| May 17 | 9.0°C | 11.1°C | |
| May 18 | 9.0°C | 10.7°C | |
| May 19 | 9.0°C | 10.2°C | |
| May 20 | 9.0°C | 9.8°C | |
| May 21 | 9.0°C | 9.4°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
May 15
May 16
May 17
May 18
May 19
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.