Rangitaiki River – current water temperature and swimming conditions
This page provides information about the current water temperature at Rangitaiki River 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.
Current Water Temperature
The water temperature in Rangitaiki River today is 14°C.
Water Temperature in Rangitaiki 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
Water temperatures in Rangitaiki 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 Rangitaiki River will be 11.3°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 | 13.7°C | 10.9°C | |
| May 7 | 13.7°C | 10.9°C | |
| May 8 | 15.8°C | 10.9°C | |
| May 9 | 15.8°C | 10.9°C | |
| May 10 | 15.9°C | 10.9°C | |
| May 11 | 15.9°C | 10.9°C | |
| May 12 | 15.8°C | 10.9°C | |
| May 13 | 13.9°C | 10.9°C | |
| May 14 | 13.8°C | 10.9°C | 13.8°C |
| May 15 | 10.9°C | 13.4°C | |
| May 16 | 10.9°C | 13.1°C | |
| May 17 | 10.9°C | 12.7°C | |
| May 18 | 10.9°C | 12.4°C | |
| May 19 | 10.9°C | 12.0°C | |
| May 20 | 10.9°C | 11.6°C | |
| May 21 | 10.9°C | 11.3°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 | 13°C | 17°C | 21°C |
| February | 13°C | 17°C | 20°C |
| March | 12°C | 16°C | 19°C |
| April | 10°C | 14°C | 17°C |
| May | 6°C | 11°C | 15°C |
| June | 7°C | 11°C | 14°C |
| July | 6°C | 10°C | 13°C |
| August | 7°C | 10°C | 13°C |
| September | 9°C | 12°C | 15°C |
| October | 10°C | 14°C | 17°C |
| November | 11°C | 15°C | 18°C |
| December | 12°C | 16°C | 20°C |
Rangitaiki River: Water Temperature by Location
Rangitaiki River: Weather Forecast
May 15
May 16
May 17
May 18
May 19
Location & Local Information
Source Confluence of the Tirikahu Stream and Lake Pouarua • coordinates 38.95634°S 176.40756°E Mouth: • location Bay of Plenty • coordinates 37.909°S 176.882°E • elevation Sea level Length 155 kilometres (96 mi)
The Rangitaiki River flows from the central North Island through forests, farmland, and wetlands before reaching the coast in the Bay of Plenty Region. Water temperature varies along its course and across the seasons, influenced by inland elevation, rainfall, and river flow. In summer, the river typically warms to around 18–22 °C, feeling comfortable in slower reaches and sheltered bends. During spring and autumn, temperatures usually sit between 14–18 °C. In winter, the water cools to roughly 10–13 °C, which feels cold and limits the time most people want to spend in the river.
Swimming Conditions
Swimming in the Rangitaiki River is allowed and is most popular during summer when water temperatures are at their highest. Locals often swim at known calm spots with easy access, especially where the river widens and currents are gentler. Even in warm weather, conditions can change after heavy rain, with increased flow and reduced clarity affecting safety and comfort. Cooler months generally see fewer swimmers due to lower temperatures and stronger currents. For these reasons, swimming is best enjoyed during settled summer conditions and in familiar locations. Overall, the Rangitaiki River offers pleasant summer swimming opportunities in suitable sections, while for much of the year it is better appreciated for its natural setting and riverside activities rather than regular time spent in the water.