Parramatta River – current river water temperature and swimming conditions

This page shows the current river water temperature at Parramatta River in New South Wales. You can explore recent temperature trends, typical monthly ranges, and historical averages for this date. The page also includes a 7-day water temperature forecast, local weather conditions, and an overview of how suitable the river is for swimming.

Current Water Temperature

21.6°C

Today

21.8°C

Yesterday

22.3°C

A Week Ago

The water temperature in Parramatta River today is 22°C.

Water Temperature in Parramatta River: Daily Trends, Historical Records, and Forecast

✅ River water between 20 and 25°C is ideal for swimming and offers very comfortable conditions for most people. Combined with warm air temperatures and settled weather, this range is perfect for extended swims and family-friendly activities. Rivers may still feel slightly cooler than lakes due to gentle currents, which many swimmers find refreshing. Even on partly cloudy days, swimming remains enjoyable.

Water Temperature Over the Last 30 Days

Over the past 30 days, water temperatures in Parramatta River have generally increased, although a slight cooling trend has set in over the last week.

According to our forecast, the water temperature in Parramatta River will be 21.8°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 12	22.5°C	21.7°C
Mar 13	22.4°C	21.7°C
Mar 14	22.3°C	21.7°C
Mar 15	20.0°C	21.7°C
Mar 16	19.8°C	21.7°C
Mar 17	21.9°C	21.7°C
Mar 18	21.9°C	21.7°C
Mar 19	21.8°C	21.7°C
Mar 20	21.6°C	21.7°C	21.6°C
Mar 21		21.7°C	21.6°C
Mar 22		21.7°C	21.7°C
Mar 23		21.7°C	21.7°C
Mar 24		21.7°C	21.7°C
Mar 25		21.7°C	21.7°C
Mar 26		21.7°C	21.8°C
Mar 27		21.7°C	21.8°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	15°C	24°C	26°C
February	21°C	24°C	26°C
March	19°C	22°C	24°C
April	16°C	18°C	20°C
May	11°C	15°C	18°C
June	10°C	12°C	14°C
July	9°C	11°C	13°C
August	10°C	12°C	14°C
September	12°C	15°C	18°C
October	16°C	18°C	19°C
November	18°C	20°C	24°C
December	13°C	23°C	25°C

Parramatta River: Water Temperature by Location

🔗 Sydney

New South Wales

21.0°C

🔗 Rose Bay

New South Wales

20.9°C

🔗 Queens Beach

New South Wales

21.0°C

🔗 Milk Beach

New South Wales

21.0°C

🔗 Shark Beach

New South Wales

21.0°C

🔗 Parsley Bay Beach

New South Wales

20.9°C

Location & Local Information

Source Toongabbie Creek
• locationOld Toongabbie
• coordinates 33°47′56″S 150°59′47″E
Mouth Port Jackson
• location Greenwich and Birchgrove
Length 13.7 km (8.5 mi)

The Parramatta River is a legendary Sydney waterway that’s currently making a massive comeback as a local swimming hole. For years, folks only looked at it from the ferry, but things are changing fast. If you’re checking the water temperature, it’s a tropical treat in the summer, usually sitting between 23°C and 26°C. It’s perfect for a splash when the western Sydney heat is cranking. In the winter, the mercury drops down to a brisk 15°C or 18°C, so you’d want to be pretty keen (or wearing a decent steamer) to jump in then. The water is generally warmer the further east you go towards the harbour, but even up towards Parramatta, it’s rarely what you’d call freezing.

Swimming Conditions

Swimming is definitely allowed and is becoming a real staple again at designated spots like Lake Parramatta, Bayview Park, and the newly opened Bedlam Bay. The reason it’s back on the cards is thanks to a huge cleanup effort to get rid of the old industrial nasties and monitor the water quality properly. You’ve still got to be smart, though; the general rule is to steer clear for about three days after a heavy downpour because the runoff can make things a bit murky and spike the bacteria levels. As long as you stick to the netted enclosures and check the RiverWatch alerts, it’s a ripper way to cool off without trekking all the way to the coast.

Nearby Rivers

Frequently Asked Questions

What is the current water temperature in Parramatta River?

The water temperature in Parramatta River today is 22°C.

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

In summer, water temperatures in Parramatta River typically range from 13°C to 26°C.

Is it possible to swim in Parramatta River (New South Wales)?

Yes — you can swim in the Parramatta River, but water quality and safety vary considerably along its length and from day to day, especially after heavy rain or near stormwater outlets. Always check up‑to‑date water‑quality alerts from NSW Health or the City of Parramatta, stick to designated swimming spots where available, and take care (many locations have no lifeguards) to minimise health and safety risks.