What is the current water temperature in Perth?

Q: What is the current water temperature in Perth?

As of now, in Perth, the water temperature is 19.49°C. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool.

Australia > Perth

Water temperature in Perth

Detailed information about the current water temperature in Perth. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.

67.1

°F

October 27, 21:55

Trend:

stable

Yesterday:

67.4°F

Tomorrow:

67.1°F

Sunrise:

05:25

Sunset:

18:37

Day Length:

13 h. 12 min.

Perth in November

Minimum:

71.4°F

Average:

73.9°F

Maximum:

75.5°F

Sea water temperature in Perth today

As of now, in Perth, the water temperature is 67.1°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 0.2°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 68.6°F on 2020, while the historical minimum was 64.3°F on 2016.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 67.1°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Perth

Date	Current Year actual* / forecast**	last year	10 years average
Oct 13	66.3°F	67.1°F	65.4°F
Oct 14	66.4°F	66.7°F	65.4°F
Oct 15	66.2°F	66.2°F	65.4°F
Oct 16	66.5°F	67.0°F	65.5°F
Oct 17	67.0°F	67.3°F	65.7°F
Oct 18	67.4°F	67.4°F	65.9°F
Oct 19	67.1°F	67.0°F	65.9°F
Oct 20	67.1°F	67.4°F	66.1°F
Oct 21	67.0°F	67.3°F	66.2°F
Oct 22	67.4°F	67.5°F	66.3°F
Oct 23	67.0°F	67.8°F	66.4°F
Oct 24	67.1°F	67.4°F	66.4°F
Oct 25	66.8°F	67.1°F	66.4°F
Oct 26	67.4°F	67.1°F	66.6°F
Oct 27	67.1°F	67.4°F	66.9°F
Oct 28	67.1°F	67.7°F	67.0°F
Oct 29	67.3°F	68.1°F	67.1°F
Oct 30	67.2°F	68.4°F	67.1°F
Oct 31	67.2°F	68.4°F	67.0°F
Nov 1	67.1°F	68.7°F	66.9°F
Nov 2	67.0°F	68.5°F	66.8°F
Nov 3	67.0°F	68.4°F	66.8°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Perth by month

In Perth, the months January through March offer comfortable swimming conditions, which amounts to 81 swimming days.

The warmest water in Perth was recorded on February 8, 2025, reaching a 78.6°F. While the coldest temperature occurred on September 11, 2025, dipping to 60.6°F. The average readings by season are 73.4°F in Winter, 70.8°F in Spring, 64.8°F in Summer, and 65.7°F in Autumn.