Water temperature in Yanchep (WA) in May

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Is it warm enough to swim in Yanchep in May? Average water temperature in Yanchep in May is 21.1°C and therefore suitable for comfortable swimming. The warmest sea in Yanchep in May is 23.1°C, and the coldest is 18.9°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Yanchep

Changes water temperature in Yanchep in May 2025, 2024

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

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 May	22.1°C	20.4°C	20°C	22.8°C
2 May	21.9°C	21°C	19.4°C	22.9°C
3 May	21.9°C	21.1°C	19.6°C	22.9°C
4 May	22.4°C	20.9°C	20.1°C	22.9°C
5 May	22.3°C	20.6°C	20.1°C	22.7°C
6 May	21.9°C	20.5°C	20.1°C	22.9°C
7 May	21.7°C	20.9°C	20.4°C	22.9°C
8 May	21.9°C	21.4°C	20.1°C	23.1°C
9 May	22.8°C	21.2°C	19.7°C	22.9°C
10 May	22.9°C	21.6°C	20°C	23.1°C
11 May	23.1°C	21.8°C	20.1°C	23.1°C
12 May	22.7°C	21.7°C	20.4°C	22.9°C
13 May	22.3°C	21.5°C	19.7°C	22.8°C
14 May	22.3°C	21.5°C	19.8°C	22.5°C
15 May	22.2°C	21.4°C	19.7°C	22.6°C

Day	2025	2024	Min	Max
16 May	22°C	21.2°C	19.7°C	22.4°C
17 May	21.9°C	21.1°C	20°C	22.4°C
18 May	22°C	21.2°C	19.6°C	22.6°C
19 May	21.8°C	21.3°C	19.8°C	22.2°C
20 May	21.4°C	21.4°C	19.9°C	22.3°C
21 May	21.3°C	21.3°C	19.5°C	22.3°C
22 May	21.5°C	21.7°C	19.8°C	22°C
23 May	21.7°C	21.7°C	19.6°C	21.9°C
24 May	21.8°C	22°C	19.9°C	22°C
25 May	21.5°C	22.1°C	19.4°C	22.1°C
26 May	20.9°C	21.9°C	18.9°C	21.9°C
27 May	20.7°C	21.8°C	19.5°C	21.8°C
28 May	20.6°C	21.6°C	19.4°C	21.6°C
29 May	20.8°C	21.7°C	19.3°C	21.7°C
30 May	21°C	21.5°C	19.5°C	21.5°C
31 May	21.4°C	21.4°C	19.5°C	21.7°C

Average water temperature in Yanchep in May over a decade

2016	2017	2018	2019	2020
20.4°C	21.3°C	21.1°C	19.9°C	20.8°C

2021	2022	2023	2024	2025
21.7°C	20.9°C	20.6°C	21.4°C	21.8°C

Yanchep sea state in May

Chart comparing the height of waves in Yanchep in May 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.

Yanchep 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 May. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Guilderton	21.2°C	19.4°C	23.2°C
Hillarys	20.7°C	18.9°C	22.8°C
Sorrento	20.7°C	18.9°C	22.7°C
Mullaloo	20.6°C	19°C	22.6°C
Scarborough Beach	20.6°C	19°C	22.6°C
Trigg Beach	20.6°C	19°C	22.6°C
Floreat Beach	20.5°C	18.9°C	22.4°C
City Beach	20.5°C	18.9°C	22.4°C
Swanbourne	20.4°C	18.8°C	22.3°C
Claremont	20.3°C	18.6°C	22.1°C

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Our report for Yanchep 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