Mōkau River – current water temperature and swimming conditions
This page provides information about the current water temperature at Mōkau River in Waikato 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 Mōkau River today is 13°C.
Water Temperature in Mōkau 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 Mōkau 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 Mōkau River will be 10.6°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 | 13.3°C | 10.2°C | |
| May 7 | 13.3°C | 10.2°C | |
| May 8 | 15.4°C | 10.2°C | |
| May 9 | 15.4°C | 10.2°C | |
| May 10 | 14.2°C | 10.2°C | |
| May 11 | 14.2°C | 10.2°C | |
| May 12 | 14.0°C | 10.2°C | |
| May 13 | 13.8°C | 10.2°C | |
| May 14 | 13.4°C | 10.2°C | 13.4°C |
| May 15 | 10.2°C | 13.0°C | |
| May 16 | 10.2°C | 12.6°C | |
| May 17 | 10.2°C | 12.2°C | |
| May 18 | 10.2°C | 11.8°C | |
| May 19 | 10.2°C | 11.4°C | |
| May 20 | 10.2°C | 11.0°C | |
| May 21 | 10.2°C | 10.6°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 | 14°C | 20°C | 25°C |
| February | 12°C | 17°C | 22°C |
| March | 10°C | 16°C | 21°C |
| April | 7°C | 13°C | 19°C |
| May | 5°C | 10°C | 14°C |
| June | 4°C | 9°C | 13°C |
| July | 3°C | 8°C | 12°C |
| August | 5°C | 9°C | 13°C |
| September | 7°C | 11°C | 15°C |
| October | 9°C | 13°C | 17°C |
| November | 9°C | 15°C | 21°C |
| December | 9°C | 15°C | 21°C |
Mōkau River: Weather Forecast
May 15
May 16
May 17
May 18
May 19
Location & Local Information
Source Pureora Forest • location about 1 km south of Magokewa, near State Highway 30 • coordinates 38°28′23″S 175°17′38″E Mouth North Taranaki Bight • coordinates 38°42′22″S 174°36′54″E Length 158 kilometres
The Mōkau River flows from the central North Island ranges through forested valleys and farmland before reaching the Tasman Sea on the western edge of the Waikato Region. Water temperature in the river reflects its mixed inland and coastal influences. In summer, temperatures typically range from about 18–22 °C, which feels comfortable for swimming in slower, sunlit sections. During spring and autumn, the river usually sits between 14–18 °C. In winter, water temperatures often drop to around 10–13 °C, making the river feel cold and limiting time spent in the water.
Swimming Conditions
Swimming in the Mōkau River is allowed and is a popular summer activity, especially near the lower reaches and calmer bends where the river widens. Locals often swim during warm, settled weather when flows are moderate and water clarity is good. The river can respond quickly to heavy rain upstream, with increased current and reduced visibility affecting swimming conditions. Even in summer, swimming is generally more comfortable for shorter periods rather than long sessions. Outside the warmer months, cooler water temperatures and stronger flow usually discourage swimming. Overall, the Mōkau River offers good seasonal swimming opportunities in suitable locations during summer, while for much of the year it is better appreciated for its natural scenery and riverside recreation rather than regular time spent in the water.