All data are in degrees Fahrenheit

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Water temperature in Cairns

Detailed information about the current water temperature in Cairns. 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 Cairns now

72.6

°F

August 16, 11:19

Trend:

stable

Yesterday:

72.7°F

Tomorrow:

72.7°F

Sunrise:

06:35

Sunset:

18:08

Day Length:

11 h. 33 min.

Cairns in August

Minimum:

83.5°F

Average:

84.8°F

Maximum:

85.9°F

Sea water temperature in Cairns today

As of now, in Cairns, the water temperature is 72.6°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 1.3°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

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 75.5°F on 2017, while the historical minimum was 72.3°F on 2019.

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 72.9°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Cairns

Date Current Year

actual* / forecast**

last year 10 years average
Aug 2 70.3°F 75.8°F 73.5°F
Aug 3 70.0°F 75.2°F 73.5°F
Aug 4 69.9°F 74.9°F 73.5°F
Aug 5 69.9°F 74.5°F 73.5°F
Aug 6 70.7°F 74.2°F 73.4°F
Aug 7 70.8°F 74.2°F 73.5°F
Aug 8 71.7°F 74.1°F 73.7°F
Aug 9 72.2°F 74.0°F 73.6°F
Aug 10 72.5°F 74.1°F 73.7°F
Aug 11 72.8°F 74.2°F 73.8°F
Aug 12 73.2°F 74.2°F 73.9°F
Aug 13 73.6°F 74.3°F 74.1°F
Aug 14 73.3°F 73.9°F 73.9°F
Aug 15 72.7°F 73.5°F 74.1°F
Aug 16 72.6°F 73.3°F 73.9°F
Aug 17 72.7°F 73.1°F 74.0°F
Aug 18 72.7°F 73.3°F 74.0°F
Aug 19 72.9°F 73.5°F 74.2°F
Aug 20 73.0°F 73.8°F 74.3°F
Aug 21 73.0°F 73.8°F 74.3°F
Aug 22 73.0°F 74.2°F 74.3°F
Aug 23 73.1°F 74.4°F 74.4°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 Cairns by month

In Cairns, the water temperature is comfortable for swimming all year round.
The warmest water in Cairns was recorded on February 21, 2016, reaching a 87.4°F. While the coldest temperature occurred on August 4, 2026, dipping to 69.9°F. The average readings by season are 84.6°F in Winter, 81.5°F in Spring, 74.3°F in Summer, and 79.4°F in Autumn.