Alkimos Surf Break

Lat Long: 31.68° S 115.68° E

Alkimos Surf Forecast and Surf Report

Issued: 7 pm 12 Sep 2026 (local time)

Forecast update in  hr  min

Today's Alkimos sea temperature is
18.0°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 12 Sep 2026:

  • Best quality surf: Sunday 13 Sep, 11PM (local time) - 7.5ft (2.3m), 15s period, WSW swell with glassy winds.
  • Most powerful swell: Friday 18 Sep, 8PM (local time) - 8ft (2.5m), 15s period, WSW swell with 3,283 kJ wave energy.
  • Next surfable swell (1★+): Sunday 13 Sep, 11PM (local time) - 7.5ft (2.3m), 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 Sunday (Sep 13) at 11PM. The primary swell is predicted to be 2.3m and 15s 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 2.5m 15s and forecast to arrive on Friday (Sep 18) 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 Monday (Sep 14) at 11PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Sun 13th Sep)7.5ft (2.3m) 15s
Best Surf11PM (Sun 13th Sep)7.5ft (2.3m) 15s
Most Powerful 8PM (Fri 18th Sep)8ft (2.5m) 15s

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


Short Range Forecast

Mostly dry. Warm (max 24°C on Tue afternoon, min 13°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 4mm), mostly falling on Fri afternoon. Warm (max 27°C on Wed afternoon, min 16°C on Thu night). Winds decreasing (fresh winds from the E on Tue night, light winds from the ENE by Wed afternoon).

Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
2
2
4
4
1
2
4
3
3
2
3
3
0
1
2
2
2
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
WSW
14
1.9
WSW
14
2.2
WSW
16
2.5
WSW
15
2.4
WSW
14
2.4
WSW
14
2.3
WSW
14
2.1
WSW
14
2.1
WSW
14
1.8
WSW
14
1.4
WSW
14
1.3
WSW
14
1.2
WSW
16
1.3
WSW
14
1.2
WSW
14
1.1
WSW
13
2.4
WSW
8
1.8
WSW
16
2.5
WSW
15
Wave Graph
Metric surfscale
Energy kJ
800
1413
2271
2598
2222
2222
2089
1900
1724
1351
731
561
697
612
577
427
782
1592
2976
Wind (km/h)
10
NW
15
W
15
WSW
5
SE
15
E
20
SSW
25
ESE
25
E
20
ESE
25
ENE
20
NE
5
ENE
15
N
25
NW
20
NW
20
N
25
N
20
NW
40
SW
Wind State
cross
cross-on
on
cross-off
cross-off
cross-on
cross-off
off
cross-off
off
cross-off
off
cross-off
cross
cross
cross-off
cross-off
cross
cross-on
High Tide
10:25PM0.48m
10:40AM0.36m
10:36PM0.53m
10:46AM0.29m
10:50PM0.57m
8:57AM0.25m
11:06PM0.59m
11:27PM0.59m
11:54PM0.57m
00:33AM0.55m
Low Tide
4:46AM0.23m
3:32PM0.25m
5:39AM0.23m
3:17PM0.23m
6:39AM0.24m
2:56PM0.20m
2:06PM0.17m
1:57PM0.14m
2:13PM0.12m
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
cloud
light rain
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:18
6:16
6:15
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:07
6:07
6:07
6:07
6:08
6:08
6:09
 mm
4
6
Temp °C
16
17
17
18
18
20
19
18
24
22
24
27
26
22
21
18
22
21
16
Feels °C
15
14
14
16
14
17
16
14
22
20
22
26
25
19
19
17
18
16
8
  • 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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