Carnarvon – water temperature at Gascoyne River

This page provides up-to-date information about the water temperature at Carnarvon, located on the Gascoyne River in Western Australia. 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

16.5°C

Today

17.6°C

Yesterday

19.0°C

A Week Ago

The water temperature in Gascoyne River at Carnarvon today is 17°C.

Water Temperature in Gascoyne River at Carnarvon: 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 Carnarvon 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 Carnarvon will be 17.8°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
Jun 13	19.1°C	18.0°C
Jun 14	19.1°C	18.0°C
Jun 15	19.0°C	18.0°C
Jun 16	19.0°C	18.0°C
Jun 17	18.8°C	18.0°C
Jun 18	18.5°C	18.0°C
Jun 19	17.9°C	18.0°C
Jun 20	17.6°C	18.0°C
Jun 21	16.5°C	18.0°C	16.5°C
Jun 22		18.0°C	16.7°C
Jun 23		18.0°C	16.9°C
Jun 24		18.0°C	17.1°C
Jun 25		18.0°C	17.3°C
Jun 26		18.0°C	17.4°C
Jun 27		18.0°C	17.6°C
Jun 28		18.0°C	17.8°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	27°C	29°C	32°C
February	27°C	29°C	32°C
March	24°C	28°C	31°C
April	21°C	25°C	29°C
May	19°C	21°C	24°C
June	14°C	18°C	20°C
July	15°C	17°C	19°C
August	16°C	20°C	22°C
September	20°C	22°C	24°C
October	21°C	24°C	28°C
November	23°C	26°C	30°C
December	25°C	28°C	32°C

Location & Local Information

Carnarvon sits near the mouth of the Gascoyne River, a river that’s better known for its floods than for steady year-round flow. When there is water in the river, its temperature reflects the warm, dry climate of Western Australia’s mid-west. In summer, from December to February, water temperatures can be quite warm, often around 25–30°C, especially in shallow pools left after flows. Autumn and spring tend to be a little milder, usually sitting in the 20–26°C range. Winter is noticeably cooler but still comfortable by Australian standards, with water temperatures generally around 16–20°C. Because the Gascoyne is an intermittent river, these figures can vary a lot depending on recent rainfall and how long water has been sitting in the channel.

Swimming Conditions

Swimming in the Gascoyne River at Carnarvon is allowed, but it’s very dependent on conditions. For much of the year the riverbed is dry, so swimming is only possible after significant rain or flood events, when pools and channels fill. When water is present and fresh, locals may swim in calm, clear sections, and the temperature is usually pleasant, especially outside winter. However, water quality can decline as pools stagnate, and uneven banks, soft sand and debris are common. For this reason, swimming tends to be occasional rather than routine, with people choosing spots carefully and only when conditions are right.

Nearby Places

Frequently Asked Questions

What is the current water temperature in Gascoyne River at Carnarvon?

The water temperature in Gascoyne River at Carnarvon today is 17°C.

What is the water temperature in Gascoyne River at Carnarvon during the summer months?

In summer, water temperatures in Gascoyne River at Carnarvon typically range from 25°C to 32°C.

Is it possible to swim in Gascoyne River at Carnarvon (Western Australia)?

Yes — parts of the Gascoyne River around Carnarvon are commonly used for swimming when conditions are calm, with estuary and pool waters typically in the low-to-mid 20s °C in summer and cooler but still pleasant in winter. Always check local signage and current conditions, avoid swimming after heavy rain because of strong currents and poor water quality, watch for boat traffic, and seek local advice or wear a lifejacket if you’re unsure.