Manawatū River – current water temperature and swimming conditions

This page provides information about the current water temperature at Manawatū River in Manawatū–Whanganui. 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

16.9°C

Today

16.8°C

Yesterday

16.4°C

A Week Ago

The water temperature in Manawatū River today is 17°C.

Water Temperature in Manawatū 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

Water temperatures in Manawatū River have been on a steady rise over the past month and have continued to climb over the last week.

According to our forecast, the water temperature in Manawatū River will be 18.3°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
Mar 21	16.3°C	18.5°C
Mar 22	16.3°C	18.5°C
Mar 23	16.4°C	18.5°C
Mar 24	16.4°C	18.5°C
Mar 25	16.5°C	18.5°C
Mar 26	16.5°C	18.5°C
Mar 27	16.8°C	18.5°C
Mar 28	16.8°C	18.5°C
Mar 29	16.9°C	18.5°C	16.9°C
Mar 30		18.5°C	17.1°C
Mar 31		18.5°C	17.3°C
Apr 1		18.5°C	17.5°C
Apr 2		18.5°C	17.7°C
Apr 3		18.5°C	17.9°C
Apr 4		18.5°C	18.1°C
Apr 5		18.5°C	18.3°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 Australia to improve accuracy.

Monthly Water Temperature Range (Min, Max & Average)

Month	Today	Yesterday	A Week Ago
January	12°C	19°C	25°C
February	13°C	19°C	25°C
March	14°C	19°C	23°C
April	10°C	14°C	18°C
May	8°C	13°C	17°C
June	5°C	10°C	14°C
July	5°C	9°C	12°C
August	4°C	9°C	13°C
September	8°C	12°C	16°C
October	9°C	14°C	19°C
November	10°C	17°C	23°C
December	12°C	18°C	23°C

Manawatū River: Water Temperature by Location

🔗 Palmerston North

Manawatū–Whanganui

17.0°C

Manawatū River: Weather Forecast

March 30

15°C / 21°C

slight thunderstorm

rain: 70% | wind: 24 km/h

March 31

14°C / 22°C

overcast

rain: 3% | wind: 23 km/h

April 1

7°C / 20°C

fog

rain: 0% | wind: 23 km/h

April 2

8°C / 23°C

partly cloudy

rain: 0% | wind: 12 km/h

April 3

12°C / 23°C

fog

rain: 3% | wind: 16 km/h

April 4

12°C / 22°C

fog

rain: 19% | wind: 17 km/h

Location & Local Information

Source Ruahine Ranges • coordinates 40°0′53″S 176°7′1″E Mouth Tasman Sea • location Manawatū Estuary, Foxton Beach • coordinates 40°28′S 175°13′E • elevation Sea level Length 180 km (110 mi)

The Manawatū River flows from the Ruahine Range across the Manawatū Plains to the Tasman Sea, shaping much of the landscape in the Manawatū–Whanganui. Water temperature varies with season, rainfall, and river flow. In summer, the river typically warms to around 18–22 °C, which feels comfortable in slower, sun-exposed sections. During spring and autumn, temperatures usually sit between 14–18 °C. In winter, the water cools noticeably, often dropping to about 10–13 °C, making it feel cold even on mild days.

Swimming Conditions

Swimming in the Manawatū River is allowed and does take place, mainly during the summer months when water temperatures are highest. Locals tend to swim at known calm spots near riverbanks, beaches, or popular access points where currents are gentler. However, the river can be affected by heavy rainfall upstream, leading to higher flows, stronger currents, and reduced water clarity. These changes can happen quickly and influence safety. For this reason, swimming is best enjoyed during settled summer weather and at familiar locations. Outside the warmer months, cooler temperatures and increased flow generally discourage swimming. Overall, the Manawatū River offers reasonable summer swimming opportunities in suitable sections, while for much of the year it is more often enjoyed for walking, cycling, and its role as a scenic feature of the region rather than regular time spent in the water.

Nearby Rivers

Frequently Asked Questions

What is the current water temperature in Manawatū River?

The water temperature in Manawatū River today is 17°C.

What is the water temperature in Manawatū River during the summer months?

In summer, water temperatures in Manawatū River at Wangi Wangi typically range from 12°C to 25°C.

Is it possible to swim in Manawatū River (Manawatū–Whanganui)?

Yes — you can swim in the Manawatū River, but conditions vary widely along its length and through the seasons, so stick to popular or designated swimming spots and heed local signage. The water can be surprisingly cool outside mid-summer, currents and hidden hazards can be strong, and water quality may drop after heavy rain, so always check local advisories, avoid swimming alone and use a lifejacket if unsure.