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Lights Beach – current water temperature and swimming conditions

This page shows the current water temperature at Lights Beach in Western Australia. You can view recent sea temperature trends on a 30-day chart, check typical monthly water temperature ranges, and compare today’s reading with historical averages for this date. The page also includes a 7-day water temperature forecast, nearby beaches with similar conditions, local weather information, and a summary of swimming conditions to help you assess how suitable the water is for swimming.

Lights Beach
Lights Beach © Alan Hagen

Current Sea Water Temperature

20.4°C
Today
20.2°C
Yesterday
20.5°C
A Week Ago

The average sea water temperature today in Lights Beach is about 20°C.

Water Temperature in Lights Beach: Daily Trends, Historical Records, and Forecast

✅ This water feels mild to warm and is comfortable for the majority of swimmers. Swimming is enjoyable, though longer stays may feel cooler for some people, especially in windy conditions. These temperatures are well suited to family outings and active swimming, particularly on warm days.

It’s important to note that these swimming tips and recommendations apply only in settled weather. When air temperatures drop below 20°C — and sometimes even below 25°C — swimming can feel uncomfortable, even when water temperatures are relatively high.

Water Temperature Over the Last 30 Days

From February 18 to March 20

Over the past 30 days, water temperatures in Lights Beach have generally increased, although a slight cooling trend has set in over the last week.

According to our forecast, Sea water temperature in Lights Beach will be 21.0°C in the next 7 days. See the table below for daily data for the upcoming week.

Table of Daily Sea Temperature Data

Date Current Average Forecast
Mar 1221.0°C21.5°C
Mar 1320.9°C21.5°C
Mar 1420.5°C21.3°C
Mar 1520.3°C21.3°C
Mar 1620.3°C21.8°C
Mar 1720.2°C21.5°C
Mar 1820.3°C21.5°C
Mar 1920.2°C21.5°C
Mar 2020.4°C21.5°C20.4°C
Mar 2122.3°C20.5°C
Mar 2222.0°C20.6°C
Mar 2322.3°C20.7°C
Mar 2422.3°C20.8°C
Mar 2522.0°C20.9°C
Mar 2621.3°C20.9°C
Mar 2722.0°C21.0°C

* Current - Actual water temperature value

** Average - Average water temperature on this day in recent years

*** Forecast - Our water temperature forecast

Actual near-shore water temperatures in Lights Beach can vary by several degrees from the values shown, particularly after heavy rain, strong southerlies, or prolonged windy conditions. Certain wind patterns can trigger upwelling, where cooler, deeper water is pushed to the surface and replaces the warmer top layer, leading to noticeable short-term changes in water temperature.

Our water temperature forecast is produced using a proprietary mathematical model that combines real-time measurements with long-term historical patterns, local weather conditions, wind strength and direction, and air temperature specific to each coastal region. To improve accuracy, we cross-check data from nearby locations and use multiple sources, including offshore buoys, satellite-based sea surface maps, and observations provided by local authorities.

Annual Water Temperature Overview by Month

Monthly Water Temp Ranges

30°C
25°C
20°C
15°C
10°c
5°C
0°C

Annual Water Temperature Trend

Lights Beach sits just west of Denmark and looks straight out over the open waters of the Great Australian Bight, giving it a rugged and windswept character. Water temperatures here are cool throughout the year, shaped by the Southern Ocean. In summer, from December to February, the sea generally ranges between 18–21°C, which can feel comfortable on warm, calm days. Autumn sees a steady cooling to around 16–19°C. Winter is cold and bracing, most often about 13–15°C, while spring brings a gradual warm-up again, typically sitting near 15–17°C, though persistent breezes often make the water feel cooler than expected.

Monthly Water Temperature Range (Min, Max & Average)

Month Min Avg Max
January18°C21°C23°C
February18°C21°C24°C
March19°C22°C24°C
April18°C22°C24°C
May19°C21°C24°C
June17°C21°C23°C
July17°C20°C21°C
August17°C19°C20°C
September16°C18°C20°C
October16°C18°C20°C
November17°C19°C21°C
December16°C20°C22°C

* Click on a month to view detailed water temperature data.

Lights Beach: Weather Forecast

March 21

18°C / 23°C
broken clouds: 51-84%
humidity: 77% | wind: 14 kmh

March 22

17°C / 19°C
light rain
humidity: 74% | wind: 25 kmh

March 23

17°C / 17°C
overcast clouds: 85-100%
humidity: 78% | wind: 22 kmh

March 24

17°C / 19°C
overcast clouds: 85-100%
humidity: 72% | wind: 18 kmh

Local Water Conditions and Nearby Spots

Nearby Beaches and Water Temperatures

Lights Beach

⭐ 3.6/5
20.7°C

Elephant Cove

⭐ 3.3/5
20.8°C

Greens Pool

⭐ 4.3/5
21.5°C

Prawn Rock Dog Beach

⭐ 3.9/5
20.3°C

Black Hole Rock

⭐ 3.4/5
19.6°C

Mcgeary's Rock

⭐ 3.0/5
20.6°C

Ocean Beach

⭐ 5.0/5
20.8°C

Mazzoletti Beach

⭐ 3.5/5
19.8°C

Swimming Conditions

Swimming at Lights Beach is allowed, but it’s best suited to experienced and confident swimmers. The beach is exposed, with regular swell, strong waves, and shifting currents that can change quickly with weather and tides. On settled summer days, a short swim can be refreshing, especially close to shore, but conditions are rarely gentle enough for relaxed or extended swimming. Many people choose to wear wetsuits even in warmer months. In spring and autumn, swims tend to be brief, while winter swimming is usually limited to locals accustomed to cold water. Overall, Lights Beach offers a raw, open-ocean swimming experience, rewarding those who respect the power of the southern coast and carefully judge conditions before entering the water.

🏄‍♀️ Nearby Surf Spots and Water Temperatures

Lights Beach

⭐ 2/5
21.4°C

Wilsons Inlet

⭐ 2/5
20.6°C

Ocean Beach

⭐ 3/5
19.6°C

Location, Type and Nearby Places

Address: Ocean Beach WA 6333

Place Tags:BeachSurf Spot

Water Temperature in Nearby Places

Frequently Asked Questions

What is the sea water temperature in Lights Beach today?
Sea water temperature in Lights Beach in the Great Australian Bight today is 20°C.
What is the water temperature in Lights Beach during summer?
During summer, the water temperature in Lights Beach typically ranges from 16°C to 24°C.
What is the water temperature in Lights Beach during autumn?
During autumn, the water temperature in Lights Beach typically ranges from 18°C to 24°C.
What is the water temperature in Lights Beach during spring?
During spring, the sea water temperature in Lights Beach typically ranges from 16°C to 21°C.
What is the water temperature in Lights Beach during winter?
During winter, the sea water temperature in Lights Beach typically ranges from 17°C to 23°C.
Which beaches are popular in the Lights Beach area?
Some of the most popular beaches in the Lights Beach area include: Lights Beach, Elephant Cove, Greens Pool, William Bay National Park, Prawn Rock Dog Beach.
What are the nearest surf spots to Lights Beach?
Some of the closest surf spots near Lights Beach include Lights Beach, Wilsons Inlet, Ocean Beach.