Wairoa River Northland – current water temperature and swimming conditions
This page provides information about the current water temperature at Wairoa River Northland 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 Wairoa River Northland today is 19°C.
Water Temperature in Wairoa River Northland: 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 Wairoa River Northland declined overall during the past month, they have shown a noticeable rebound over the last week.
According to our forecast, the water temperature in Wairoa River Northland 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 22 | 18.4°C | 20.0°C | |
| Mar 23 | 18.5°C | 20.0°C | |
| Mar 24 | 18.6°C | 20.0°C | |
| Mar 25 | 18.6°C | 20.0°C | |
| Mar 26 | 18.7°C | 20.0°C | |
| Mar 27 | 18.7°C | 20.0°C | |
| Mar 28 | 19.0°C | 20.0°C | |
| Mar 29 | 19.0°C | 20.0°C | |
| Mar 30 | 19.1°C | 20.0°C | 19.1°C |
| Mar 31 | 20.0°C | 19.2°C | |
| Apr 1 | 20.0°C | 19.3°C | |
| Apr 2 | 20.0°C | 19.4°C | |
| Apr 3 | 20.0°C | 19.6°C | |
| Apr 4 | 20.0°C | 19.7°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 |
Wairoa River Northland: Water Temperature by Location
🔗 Dargaville
Wairoa River Northland: Weather Forecast
March 30
March 31
April 1
April 2
April 3
April 4
Location & Local Information
Source: • location Near Dargaville Mouth: • location Kaipara Harbour Length 150 km
The Wairoa River in Northland flows south from the Tangihua Ranges through Dargaville before entering the Kaipara Harbour. As one of the largest rivers in Northland, its water temperature reflects the region’s warm, subtropical climate as well as tidal influence in the lower reaches. In winter, temperatures are generally around 12–16°C. During spring, the river gradually warms to approximately 16–20°C. In summer, particularly in January and February, calmer upstream sections can reach about 21–26°C on hot days, while tidally influenced areas closer to the harbour may vary slightly. By autumn, temperatures usually ease back to between 17 and 21°C. Heavy rainfall can briefly lower temperatures and increase flow and turbidity.
Swimming Conditions
Swimming is allowed in parts of the Wairoa River, particularly in quieter upstream stretches away from strong currents and boat traffic. The most comfortable conditions are typically in mid to late summer when water temperatures exceed 20°C and flows are steady. However, swimmers should be cautious in tidal sections, where currents and water clarity can change. It is advisable to avoid swimming after significant rainfall, when runoff may affect water quality. Checking local conditions before entering the water helps ensure a safer and more enjoyable experience.