Marlo’s Beach – water temperature at Tweed River

This page provides up-to-date information about the water temperature at Marlo’s Beach, located on the Tweed River in New South Wales. Here you can check current conditions, view recent temperature trends, explore typical monthly ranges, and compare today’s reading with historical averages for this date. The page also includes a 7-day water temperature forecast, local weather information, and swimming conditions.

Current Water Temperature

18.8°C

Today

17.7°C

Yesterday

18.0°C

A Week Ago

The water temperature in Tweed River at Marlo’s Beach today is 19°C.

Water Temperature in Tweed River at Marlo’s Beach: 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 Marlo’s Beach declined overall during the past month, they have shown a noticeable rebound over the last week.

According to our forecast, the water temperature in Marlo’s Beach will be 18.7°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
Apr 28	18.3°C	17.8°C
Apr 29	18.2°C	17.8°C
Apr 30	18.0°C	17.8°C
May 1	18.0°C	17.8°C
May 2	18.0°C	17.8°C
May 3	17.8°C	17.8°C
May 4	17.8°C	17.8°C
May 5	17.7°C	17.8°C
May 6	18.8°C	17.8°C	18.8°C
May 7		17.8°C	18.8°C
May 8		17.8°C	18.8°C
May 9		17.8°C	18.8°C
May 10		17.8°C	18.8°C
May 11		17.8°C	18.7°C
May 12		17.8°C	18.7°C
May 13		17.8°C	18.7°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	23°C	26°C	28°C
February	22°C	25°C	28°C
March	21°C	24°C	27°C
April	18°C	21°C	24°C
May	15°C	18°C	21°C
June	14°C	15°C	17°C
July	13°C	15°C	16°C
August	14°C	16°C	19°C
September	17°C	19°C	21°C
October	19°C	22°C	24°C
November	22°C	24°C	26°C
December	23°C	25°C	27°C

Location & Local Information

Marlo’s Beach is set along a calm stretch of the Tweed River in northern New South Wales, where the subtropical climate keeps water temperatures relatively mild year round. In summer, the river commonly warms to around 25–27 °C, creating comfortable conditions for swimming and spending extended time in the water. Autumn usually remains pleasant, with temperatures sitting between 23–25 °C as the weather settles. Spring begins cooler at roughly 21–23 °C, then gradually warms as summer approaches. Winter brings the lowest readings, but the river often stays around 18–21 °C, which many locals still find suitable for a dip, particularly on clear, sunny days.

Swimming Conditions

Swimming is allowed at Marlo’s Beach and is popular thanks to the sheltered river setting. With no ocean swell and generally gentle currents, the water feels calmer and safer than open coastal beaches, making it appealing for relaxed swimming. The river environment can also feel slightly warmer than the nearby sea, especially outside peak summer. As with any river location, swimmers should remain mindful of tides and occasional boat traffic, but overall Marlo’s Beach offers dependable water temperatures and easy swimming conditions through most of the year.

Nearby Places

Frequently Asked Questions

What is the current water temperature in Tweed River at Marlo’s Beach?

The water temperature in Tweed River at Marlo’s Beach today is 19°C.

What is the water temperature in Tweed River at Marlo’s Beach during the summer months?

In summer, water temperatures in Tweed River at Marlo’s Beach typically range from 22°C to 28°C.

Is it possible to swim in Tweed River at Marlo’s Beach (New South Wales)?

Yes — you can swim in the Tweed River at Marlo’s Beach, but conditions can change quickly so always check local signage, water-quality alerts and tide/current information before entering. The estuary is often more sheltered than the open ocean but can still have strong currents, submerged hazards and seasonal temperature changes, so swim with a buddy and prefer patrolled spots or advice from local authorities.