Hutt River – current water temperature and swimming conditions
This page provides information about the current water temperature at Hutt River in Wellington 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 Hutt River today is 10°C.
Water Temperature in Hutt 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 Hutt 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 Hutt River will be 9.3°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 |
|---|---|---|---|
| Aug 19 | 12.9°C | 9.3°C | |
| Aug 20 | 12.7°C | 9.3°C | |
| Aug 21 | 12.6°C | 9.3°C | |
| Aug 22 | 12.8°C | 9.3°C | |
| Aug 23 | 13.0°C | 9.3°C | |
| Aug 24 | 13.3°C | 9.3°C | |
| Aug 25 | 9.6°C | 9.3°C | |
| Aug 26 | 9.6°C | 9.3°C | |
| Aug 27 | 9.6°C | 9.3°C | 9.6°C |
| Aug 28 | 9.3°C | 9.6°C | |
| Aug 29 | 9.3°C | 9.5°C | |
| Aug 30 | 9.3°C | 9.5°C | |
| Aug 31 | 9.3°C | 9.5°C | |
| Sep 1 | 9.3°C | 9.4°C | |
| Sep 2 | 9.3°C | 9.4°C | |
| Sep 3 | 9.3°C | 9.3°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 | 11°C | 17°C | 22°C |
| February | 12°C | 17°C | 22°C |
| March | 10°C | 16°C | 21°C |
| April | 8°C | 12°C | 16°C |
| May | 7°C | 11°C | 15°C |
| June | 5°C | 10°C | 14°C |
| July | 4°C | 8°C | 11°C |
| August | 5°C | 9°C | 12°C |
| September | 5°C | 10°C | 14°C |
| October | 6°C | 13°C | 19°C |
| November | 6°C | 12°C | 18°C |
| December | 9°C | 14°C | 19°C |
Hutt River: Water Temperature by Location
🔗 Upper Hutt
Hutt River: Weather Forecast
August 28
August 29
August 30
August 31
September 1
Location & Local Information
Source: • location Tararua Ranges Mouth: • location Wellington Harbour • elevation 0 m (0 ft) Length 56 km
The Hutt River flows from the Tararua Ranges through Upper and Lower Hutt before entering Wellington Harbour. As a river that begins in cooler hill country and runs through urban areas, its water temperature varies clearly with the seasons. In winter, temperatures are generally around 8–12°C, particularly in the upper reaches. During spring, the river gradually warms to approximately 12–16°C. In summer, especially in January and February, calmer stretches and deeper pools can reach about 17–22°C on warm days, while faster-flowing sections may feel cooler. In autumn, temperatures typically ease back to between 13 and 17°C. Heavy rain in the ranges can briefly lower water temperatures and significantly increase flow.
Swimming Conditions
Swimming is allowed in suitable parts of the Hutt River, and several popular swimming holes are used during the warmer months. The most comfortable conditions are usually in mid to late summer when water temperatures approach or exceed 18°C and river levels are steady. However, swimmers should be aware of moderate currents, variable depths and occasional debris after rainfall. It is advisable to avoid swimming during high flows or shortly after heavy rain, when water clarity may be reduced. Checking regional water quality updates before entering the river is recommended for safety.