Water temperature in Merewether (NSW) in January

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Is it warm enough to swim in Merewether in January? Average water temperature in Merewether in January is 22.8°C and therefore suitable for comfortable swimming. The warmest sea in Merewether in January is 25.7°C, and the coldest is 20.2°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 January 2025, 2024

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 January.

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 January	23.9°C	22.9°C	20.2°C	23.9°C
2 January	23.5°C	22.7°C	20.6°C	23.5°C
3 January	23.3°C	23°C	21.3°C	23.3°C
4 January	22.9°C	23°C	20.8°C	23.3°C
5 January	23.5°C	23.5°C	20.8°C	23.9°C
6 January	23.5°C	23°C	20.9°C	23.8°C
7 January	23.4°C	22.8°C	20.5°C	23.6°C
8 January	23.4°C	23.3°C	21°C	23.9°C
9 January	23.5°C	23.2°C	21.1°C	23.5°C
10 January	23.4°C	23.7°C	21.5°C	23.7°C
11 January	23.4°C	24.1°C	20.8°C	24.1°C
12 January	23.9°C	23.9°C	21.4°C	23.9°C
13 January	24°C	24.5°C	21.7°C	24.5°C
14 January	24.3°C	24.3°C	21.9°C	24.3°C
15 January	24.2°C	24.1°C	21.5°C	24.2°C

Day	2025	2024	Min	Max
16 January	24.1°C	24°C	21.7°C	24.1°C
17 January	24.1°C	23.6°C	21.7°C	24.1°C
18 January	22.6°C	23.6°C	21.6°C	23.6°C
19 January	22.5°C	23°C	21°C	24.1°C
20 January	22.6°C	24°C	21.2°C	24.1°C
21 January	23.3°C	23.3°C	21.3°C	24.1°C
22 January	22.9°C	24.2°C	21.5°C	24.3°C
23 January	22.9°C	24°C	21.7°C	24.3°C
24 January	22.6°C	24.2°C	22°C	24.2°C
25 January	23.4°C	25.1°C	21.9°C	25.1°C
26 January	24.2°C	25°C	21.8°C	25.2°C
27 January	24.9°C	24.6°C	21.9°C	25.1°C
28 January	25.6°C	24.2°C	22°C	25.6°C
29 January	25.4°C	24.3°C	21.7°C	25.4°C
30 January	24.4°C	24°C	21.2°C	25.1°C
31 January	24.3°C	24°C	20.8°C	25.7°C

Average water temperature in Merewether in January over a decade

2016	2017	2018	2019	2020
23°C	22.7°C	22.7°C	23°C	22.9°C

2021	2022	2023	2024	2025
22.5°C	23.3°C	23.2°C	23.8°C	23.7°C

Merewether sea state in January

Chart comparing the height of waves in Merewether in January 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 January. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Stockton	22.8°C	20.5°C	26.5°C
Caves Beach	23.1°C	20.6°C	27.1°C
Catherine Hill Bay	23.1°C	20.7°C	26.9°C
One Mile Beach	22.7°C	20.1°C	25°C
Budgewoi	23°C	20.9°C	26.3°C
Norah Head	22.9°C	20.9°C	25.9°C
Soldiers Beach	22.9°C	20.9°C	25.9°C
Gorokan	23°C	20.9°C	26.7°C
Hawks Nest	22.8°C	20.7°C	25.3°C
Blue Bay	23°C	20.9°C	26.5°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