Alkimos Surf Break

Lat Long: 31.68° S 115.68° E

Alkimos Surf Forecast and Surf Report

Issued: 7 am 15 Aug 2026 (local time)

Forecast update in  hr  min

Today's Alkimos sea temperature is
18.2° 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 15 Aug 2026:

  • Best quality surf: Thursday 20 Aug, 5AM (local time) - 10ft (3.0m), 16s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Monday 17 Aug, 8PM (local time) - 11ft (3.5m), 17s period, WSW swell with 6,797 kJ wave energy.
  • Next surfable swell (1★+): Saturday 15 Aug, 2PM (local time) - 6ft (1.8m), 14s 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 Saturday (Aug 15) at 2PM. The primary swell is predicted to be 1.8m and 14s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Alkimos in the next 16 days are 3.5m 17s and forecast to arrive on Monday (Aug 17) at 8PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Sunday (Aug 16) at 8AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 2PM (Sat 15th Aug)6ft (1.8m) 14s
Best Surf 5AM (Thu 20th Aug)10ft (3.0m) 16s
Most Powerful 8PM (Mon 17th Aug)11ft (3.5m) 17s

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


Short Range Forecast

Light rain (total 6mm), mostly falling on Mon afternoon. Warm (max 22°C on Sun afternoon, min 13°C on Sat morning). Winds increasing (calm on Sat afternoon, strong winds from the WSW by Mon afternoon).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 16°C on Tue morning, min 13°C on Thu morning). Wind will be generally light.

Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
4
3
2
3
3
0
0
0
5
5
4
4
3
5
5
3
4
4
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
WSW
14
1.7
WSW
14
1.7
WSW
13
1.9
WSW
16
2.1
WSW
15
2.2
WSW
15
2.1
WSW
16
3.5
WSW
17
3.5
WSW
15
3.5
WSW
16
3.5
WSW
16
3
WSW
16
2.5
WSW
15
2.5
WSW
15
3
WSW
16
3
WSW
16
2.5
WSW
16
2.3
WSW
15
2.1
WSW
14
2.1
WSW
14
2
WSW
14
Wave Graph
Metric surfscale
Energy kJ
1351
1176
987
1766
1847
2208
2274
5987
5924
6251
6226
4272
2655
3241
4981
4377
3601
2238
1835
1809
1553
Wind (km/h)
15
NE
5
WSW
15
NE
30
NNE
20
NNE
25
NE
30
NW
40
WSW
20
SW
10
W
15
W
10
WNW
15
N
10
W
5
NNW
5
NW
15
SSW
15
SE
15
E
10
SSE
15
E
Wind State
cross-off
glassy
off
cross-off
cross-off
cross-off
cross-on
on
cross-on
on
on
cross-on
cross-off
cross-on
glassy
glassy
cross-on
cross-off
off
cross
off
High Tide
10:41AM0.49m
00:06AM0.40m
10:38AM0.40m
00:18AM0.46m
9:19AM0.33m
00:38AM0.51m
1:07AM0.54m
1:57AM0.55m
3:21AM0.55m
4:48AM0.56m
Low Tide
5:19PM0.22m
5:00AM0.30m
4:55PM0.23m
6:12AM0.31m
4:39PM0.21m
4:20PM0.18m
3:35PM0.15m
3:16PM0.12m
3:25PM0.09m
clear
clear
clear
clear
clear
clear
part cloud
rain showers
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:54
6:52
6:52
6:50
6:48
6:48
6:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:50
5:50
5:51
5:52
5:52
5:52
5:52
 mm
6
Temp °C
18
20
19
20
22
19
19
16
16
16
16
15
15
16
16
16
16
16
16
19
17
Feels °C
14
18
17
14
16
15
14
10
10
13
12
11
12
12
14
15
14
13
13
16
14
  • 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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