Manganui River – current water temperature and swimming conditions
This page provides information about the current water temperature at Manganui River in Northland 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 Manganui River today is 19°C.
Water Temperature in Manganui River: Daily Trends, Historical Records, and Forecast
⚠️ A river temperature of 15 to 20°C is generally considered cool to comfortable for swimming in Australia. On warm, calm days, this range allows for relaxed swimming and longer time in the water. Comfort depends heavily on air temperature and sunshine, as cooler weather can still make the water feel chilly. This range is popular for river swimming during spring and early autumn.
Water Temperature Over the Last 30 Days
While water temperatures in Manganui River declined overall during the past month, they have shown a noticeable rebound over the last week.
According to our forecast, the water temperature in Manganui River will be 19.9°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 21 | 18.4°C | 20.0°C | |
| Mar 22 | 18.4°C | 20.0°C | |
| Mar 23 | 18.6°C | 20.0°C | |
| Mar 24 | 18.6°C | 20.0°C | |
| Mar 25 | 18.7°C | 20.0°C | |
| Mar 26 | 18.7°C | 20.0°C | |
| Mar 27 | 18.9°C | 20.0°C | |
| Mar 28 | 18.9°C | 20.0°C | |
| Mar 30 | 19.0°C | 20.0°C | 19.0°C |
| Mar 31 | 20.0°C | 19.1°C | |
| Apr 1 | 20.0°C | 19.3°C | |
| Apr 2 | 20.0°C | 19.4°C | |
| Apr 3 | 20.0°C | 19.5°C | |
| Apr 4 | 20.0°C | 19.6°C | |
| Apr 5 | 20.0°C | 19.8°C | |
| Apr 6 | 20.0°C | 19.9°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 Australia to improve accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Today | Yesterday | A Week Ago |
|---|---|---|---|
| January | 16°C | 22°C | 27°C |
| February | 17°C | 22°C | 27°C |
| March | 16°C | 20°C | 24°C |
| April | 14°C | 18°C | 22°C |
| May | 10°C | 15°C | 19°C |
| June | 7°C | 12°C | 16°C |
| July | 6°C | 11°C | 15°C |
| August | 8°C | 12°C | 15°C |
| September | 10°C | 14°C | 18°C |
| October | 11°C | 15°C | 19°C |
| November | 15°C | 19°C | 23°C |
| December | 17°C | 22°C | 26°C |
Manganui River: Weather Forecast
March 30
March 31
April 1
April 2
April 3
April 4
Location & Local Information
The Manganui River in the Northland Region flows through warm, subtropical countryside before reaching the coast. As a northern lowland river, its water temperature reflects the region’s generally mild climate. In winter, temperatures are usually around 11–15°C, remaining milder than many rivers further south. During spring, the river gradually warms to approximately 15–19°C. In summer, particularly in January and February, calmer pools and slower-moving stretches can reach about 20–25°C on hot Northland days. In autumn, temperatures typically ease back to between 16 and 20°C. Heavy rainfall can temporarily lower water temperatures and increase flow, especially in narrower sections.
Swimming Conditions
Swimming is allowed in suitable parts of the Manganui River, and it can be an appealing freshwater option during the warmer months. The most comfortable conditions are generally in mid to late summer when water temperatures exceed 20°C and flows are steady. However, swimmers should be mindful of changing depths, submerged branches and moderate currents in some reaches. After significant rainfall, the river can rise quickly and water clarity may decrease, making conditions less suitable for swimming. Choosing recognised, calm spots and checking local water quality information beforehand helps ensure a safer and more enjoyable experience.