Alkimos Surf Break

Lat Long: 31.68° S 115.68° E

Alkimos Surf Forecast and Surf Report

Issued: 7 pm 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Alkimos sea temperature is
18.3° C
0.6° 

Alkimos surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Alkimos surf forecast from 20 Aug 2026:

  • Best quality surf: Wednesday 26 Aug, 8PM (local time) - 13ft (4.0m), 17s period, WSW swell with cross-shore winds.
  • Most powerful swell: Wednesday 26 Aug, 2PM (local time) - 13ft (4.0m), 19s period, WSW swell with 10,846 kJ wave energy.
  • Next surfable swell (1★+): Friday 21 Aug, 5AM (local time) - 8ft (2.5m), 15s period with WSW swell.

Best Forecast Surf Conditions for Alkimos this week:

The surf forecast for Alkimos over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 21) at 5AM. The primary swell is predicted to be 2.5m and 15s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Alkimos in the next 16 days are 4.0m 19s and forecast to arrive on Wednesday (Aug 26) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Fri 21st Aug)8ft (2.5m) 15s
Best Surf 8PM (Wed 26th Aug)13ft (4.0m) 17s
Most Powerful 2PM (Wed 26th Aug)13ft (4.0m) 19s

Table - best surf conditions forecast for Alkimos over the next 16 days.


Short Range Forecast

Mostly dry. Warm (max 20°C on Fri afternoon, min 13°C on Fri morning). Mainly fresh winds.

Days 5-7 Weather Summary

Moderate rain (total 18mm), heaviest on Wed afternoon. Very mild (max 17°C on Mon afternoon, min 10°C on Mon morning). Wind will be generally light.

Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
4
3
4
4
0
1
2
0
5
4
2
3
2
1
3
6
6
5
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
WSW
16
2.4
WSW
15
2.3
WSW
14
2.2
WSW
15
2.2
WSW
17
1.9
WSW
16
1.5
WSW
14
1.4
WSW
14
1.5
WSW
13
2.5
WSW
16
2.3
WSW
14
1.9
WSW
13
1.6
WSW
13
1.4
WSW
12
0.9
WSW
16
2.1
WSW
15
3.5
WSW
19
4
WSW
18
3.5
WSW
16
Wave Graph
Metric surfscale
Energy kJ
2958
2513
2243
2015
2731
1699
947
752
796
3196
2118
1303
835
563
441
1846
9288
9196
7009
Wind (km/h)
10
ESE
15
E
15
SSE
10
ESE
5
N
30
S
25
S
20
S
25
SSW
5
SE
10
NE
10
WSW
5
NE
10
NW
10
WNW
10
NW
30
NW
20
SSW
25
S
Wind State
cross-off
cross-off
cross
cross-off
glassy
cross-on
cross
cross
cross-on
cross-off
off
on
cross-off
cross
cross-on
cross
cross
cross-on
cross
High Tide
3:21AM0.55m
4:48AM0.56m
5:56AM0.58m
6:49AM0.60m
7:32AM0.62m
8:09AM0.62m
Low Tide
3:25PM0.09m
3:41PM0.08m
3:58PM0.07m
4:13PM0.07m
4:26PM0.07m
4:33PM0.09m
clear
clear
clear
clear
clear
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
heavy rain
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:47
6:46
6:45
6:43
6:43
6:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:52
5:52
5:53
5:54
5:54
5:55
5:55
 mm
18
10
Temp °C
17
17
20
18
19
18
17
15
16
15
15
17
16
15
16
16
17
15
13
Feels °C
14
14
18
14
18
15
12
11
12
11
13
15
14
13
13
14
12
14
9
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Alkimos Surf forecast

The above surf forecast table for Alkimos provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Alkimos can be found by selecting the local surf guide option on the grey menu. Our Alkimos surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Alkimos) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Alkimos may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a holiday in Perth City Coast? If you are looking for accommodation near Alkimos, camping, hotels and holiday cottages in Perth City Coast, consider staying in Perth which is 35 km (22 miles) away. Other places in and around Perth City Coast where you can find information about places to rent, and car hire include Fremantle which is 43 km (27 miles) away, Canning Vale, Gosnells and Kwinana.

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