Semaphore SA

At Point Malcolm the Adelaide coast protrudes more than 1 km seaward. The older suburb of Semaphore is located on the point, which together with Largs Bay make up 7 km on continuous residential development (Fig. 4.74). This entire area is situated on the Lefevre Peninsula a 10 km long, up to 1 km... Read more

At Point Malcolm the Adelaide coast protrudes more than 1 km seaward. The older suburb of Semaphore is located on the point, which together with Largs Bay make up 7 km on continuous residential development (Fig. 4.74). This entire area is situated on the Lefevre Peninsula a 10 km long, up to 1 km wide accumulation of sand that has been deposited over the past 6 000 years, by the northern movement of sand from as far south as Seacliff. This movement is continuing today, the result of which are clearly evident in the wide low dune fronting the beach, and wide beach and multiple shallow bars. The sand in now accumulating under the jetties and against the North Haven breakwater, where the beach has built out 400 m seaward is the past 20 years.This section of coast receives only low waves, usually less than 0.5 m. Occasional higher waves are sufficient to rework the fine sand into a wide low firm beach, fronted by two to three shore parallel shallow bars and troughs, extending up to 500 m seaward of the beach. Two jetties cross the beach at Semaphore and Largs Bay, the latter is now located within the shallow bar section. The original Semaphore Surf Life Saving Club (called Taperoo) which was located north of the jetty, was abandoned when the beach moved too far seaward of the club house.The new Semaphore surf club is located on Point Malcolm (232E), south of Fort Granville and adjacent to the caravan park. It is fronted by a foreshore reserve, wide beach and wide shallow surf zone with three shallow bars and trough off the beach (Figs. 4.75 & 4.76).

Swimming

This is relative safe section of beach owing to the usually low waves and shallow water. Care need be taken with young children as the water depth varies over the bars and troughs and there are some deeper holes.

Surfing

There is usually no surf up here. You need a very strong southwesterly or huge ocean swell to push rideable waves up into Largs Bay.

Fishing

The jetties are the most popular spots for fishing, with the beaches very shallow.

General

A low energy but still dynamic section of beach that is continuing to grow seaward. There is excellent access and large areas of protected dune, plus the beach and bars to play on.

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Patrolled Unpatrolled Today Change Day

Semaphore SLSC

Mon

05/12

Tue

06/12

Wed

07/12

Thu

08/12

Fri

09/12

Sat

10/12

Sun

11/12

-

-

-

-

-

13:30 - 17:30

13:30 - 17:30

Information

About

Semaphore South, SA 5019

Includes beaches:
Henley-largs Bay, Henley, Grange, Tennyson, West Lake, Largs Bay

Length:
3km

General Beach Hazard Rating:
3/10 (Least hazardous)

Beach Key:
 sa0232E

Nearby beaches

Information Symbols

  • Formal parking area
  • Toilets
  • Jetty

Weather

Thursday 08, Dec 9:05 am

Day 21°    Night 14°
16.4°C
Possible shower. Windy

Water Temperature  20°C


Swell


Wind


Wind: Southwesterly change 20 to 30 knots extending throughout in the early morning, easing to 20 to 25 knots in the evening.
Swell: West to southwesterly below 1 metre.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres during the morning.
Weather: Partly cloudy. 70% chance of showers, decreasing during the day. Thunderstorms likely in the early morning. Reduced visibility at times with showers early morning.

Tide

9 am
1.81m
3 am
1.04m
11 pm
1.62m
4 pm
0.85m

UV

Index: 14 (Extreme)

Sun protection recommended from 8:50 am to 5:40 pm


Radar

128 km

radar helper

Weather

Friday 09, Dec

Day 21°    Night 12°
Partly cloudy

Swell


Wind


Wind: South to southwesterly 15 to 20 knots tending south to southeasterly 10 to 15 knots during the evening.
Swell: Southeast to southwesterly below 1 metre.
Seas: 1.5 to 2 metres, decreasing to 1 metre during the day.
Weather: 20% chance of a shower in the morning. Mostly sunny afternoon.

Tide

11 am
1.51m
6 am
1.22m
7 pm
0.99m

UV

Index: 14 (Extreme)

Sun protection recommended from 9:00 am to 5:40 pm


Weather

Thu 08, Dec to Thu 15, Dec


Swell


Wind


Wind: East to southeasterly 10 to 15 knots tending southeasterly 15 to 20 knots during the evening. Afternoon sea breezes about 10 knots.
Swell: South to southwesterly below 0.5 metres.
Seas: breezes about 10 knots.
Weather: Sunny.

Tide


UV

Thu 8th 13 (Extreme) Sun protection recommended from 9:00 am to 5:30 pm
Fri 9th 14 (Extreme) Sun protection recommended from 9:00 am to 5:40 pm
Sat 10th 14 (Extreme) Sun protection recommended from 8:50 am to 5:40 pm
Sun 11th 14 (Extreme) Sun protection recommended from 8:50 am to 5:40 pm

SLSA provides this information as a guide only. Surf conditions are variable and therefore this information should not be relied upon as a substitute for observation of local conditions and an understanding of your abilities in the surf. SLSA reminds you to always swim between the red and yellow flags and never swim at unpatrolled beaches. SLSA takes all care and responsibility for any translation but it cannot guarantee that all translations will be accurate.

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