All data are in degrees Fahrenheit

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Water temperature in Sydney

Detailed information about the current water temperature in Sydney. 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.
Sea temperature in Sydney now

49.8

°F

June 23, 20:37

Trend:

stable

Yesterday:

50.2°F

Tomorrow:

50.3°F

Sunrise:

05:10

Sunset:

20:56

Day Length:

15 h. 46 min.

Sydney in June

Minimum:

34.0°F

Average:

35.7°F

Maximum:

37.1°F

Sea water temperature in Sydney today

As of now, in Sydney, the water temperature is 49.8°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 1.8°F lower 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 rise a bit.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 56.8°F on 2024, while the historical minimum was 48.2°F on 2018.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the minimum recorded over the past years. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 52.6°F, with minimum temperature starting at 50.3°F, while the maximum might reach 53.9°F.

Daily water temperature in Sydney

Date Current Year

actual* / forecast**

last year 10 years average
Jun 9 45.5°F 48.2°F 46.9°F
Jun 10 47.2°F 48.3°F 47.4°F
Jun 11 46.7°F 48.6°F 47.8°F
Jun 12 47.6°F 51.4°F 49.2°F
Jun 13 47.3°F 52.4°F 49.4°F
Jun 14 46.7°F 52.0°F 49.7°F
Jun 15 46.1°F 51.4°F 48.9°F
Jun 16 46.0°F 50.9°F 48.7°F
Jun 17 46.5°F 52.6°F 49.4°F
Jun 18 47.1°F 53.1°F 49.9°F
Jun 19 49.1°F 54.3°F 51.4°F
Jun 20 51.1°F 54.2°F 51.5°F
Jun 21 52.1°F 52.1°F 51.8°F
Jun 22 50.2°F 53.5°F 52.0°F
Jun 23 49.8°F 52.6°F 51.7°F
Jun 24 50.3°F 52.4°F 52.1°F
Jun 25 50.9°F 52.9°F 52.7°F
Jun 26 52.9°F 55.9°F 54.8°F
Jun 27 52.9°F 56.6°F 54.7°F
Jun 28 53.6°F 56.0°F 55.4°F
Jun 29 53.8°F 56.4°F 55.6°F
Jun 30 53.9°F 56.8°F 55.8°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 Sydney by month

In an average year, Sydney offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Sydney was recorded on July 31, 2023, reaching a 72.1°F. While the coldest temperature occurred on January 21, 2019, dipping to 32.0°F. The average readings by season are 35.4°F in Winter, 35.7°F in Spring, 59.8°F in Summer, and 55.9°F in Autumn.