Water temperature in Merewether (NSW) in December

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Is it warm enough to swim in Merewether in December? Average water temperature in Merewether in December is 21.3°C and therefore suitable for comfortable swimming. The warmest sea in Merewether in December is 24.7°C, and the coldest is 18.7°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Merewether

Changes water temperature in Merewether in December 2024, 2023

To get an accurate forecast for the water temperature in Merewether for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Merewether, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of December.

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2024	2023	Min	Max
1 December	21.6°C	21.4°C	19.2°C	22.6°C
2 December	21.1°C	21.3°C	19.2°C	22.4°C
3 December	21.4°C	21.7°C	19.4°C	22.1°C
4 December	21.5°C	21.8°C	18.7°C	22°C
5 December	22.4°C	22.1°C	19.1°C	22.4°C
6 December	22.7°C	21.7°C	19.1°C	22.7°C
7 December	22°C	22.4°C	19.5°C	22.4°C
8 December	22°C	23°C	19.6°C	23°C
9 December	22.1°C	22.1°C	19.7°C	22.2°C
10 December	22.5°C	22.3°C	20.1°C	22.5°C
11 December	22°C	21.7°C	20.2°C	22°C
12 December	22.4°C	22.5°C	19.9°C	22.5°C
13 December	22.8°C	22.6°C	19.6°C	22.8°C
14 December	23.3°C	21.9°C	19.9°C	23.3°C
15 December	23.7°C	21.8°C	19.8°C	23.7°C

Day	2024	2023	Min	Max
16 December	23.7°C	22.2°C	19.9°C	23.7°C
17 December	23.5°C	22.2°C	20.2°C	23.5°C
18 December	22.7°C	23°C	20.1°C	24°C
19 December	21.8°C	22.9°C	20.2°C	23.9°C
20 December	21.8°C	22.8°C	19.8°C	24.5°C
21 December	21.7°C	22°C	19.7°C	24.2°C
22 December	22.5°C	22.1°C	19.9°C	24°C
23 December	22.3°C	22.4°C	19.8°C	24.1°C
24 December	22.3°C	22.3°C	19.9°C	24.7°C
25 December	22.8°C	22.4°C	20.3°C	24.3°C
26 December	23.3°C	23.3°C	20.4°C	24.1°C
27 December	22.7°C	23.1°C	20.3°C	23.9°C
28 December	23.1°C	23.6°C	20.1°C	23.8°C
29 December	22.8°C	24°C	20.4°C	24°C
30 December	23.3°C	23.9°C	20.8°C	24.1°C
31 December	23.6°C	22.9°C	20°C	23.8°C

Average water temperature in Merewether in December over a decade

2015	2016	2017	2018	2019
20.5°C	21.3°C	20.6°C	21.3°C	21°C

2020	2021	2022	2023	2024
21.7°C	22.9°C	20.9°C	22.4°C	22.5°C

Merewether sea state in December

Chart comparing the height of waves in Merewether in December over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Merewether water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Temperature in neighboring cities

The nearest locations with the average water temperature in December. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Stockton	21.4°C	18.8°C	24.7°C
Caves Beach	21.7°C	18.8°C	25.6°C
Catherine Hill Bay	21.5°C	18.8°C	25.1°C
One Mile Beach	21.3°C	19.7°C	24.6°C
Budgewoi	21.5°C	18.9°C	25.1°C
Norah Head	21.4°C	18.9°C	24.8°C
Soldiers Beach	21.4°C	18.9°C	24.8°C
Gorokan	21.6°C	19°C	25.4°C
Hawks Nest	21.4°C	19.3°C	24.8°C
Blue Bay	21.5°C	19°C	25.1°C

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Our report for Merewether is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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Date (day and month)

Water temperature: min 16°C

Average temperature Maximum temperature