Windy Harbour – current water temperature and swimming conditions
This page shows the current water temperature at Windy Harbour 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.
Current Sea Water Temperature
The average sea water temperature today in Windy Harbour is about 21°C.
Water Temperature in Windy Harbour: 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
While water temperatures in Windy Harbour declined overall during the past month, they have shown a noticeable rebound over the last week.
According to our forecast, Sea water temperature in Windy Harbour will be 21.6°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 12 | 21.1°C | 21.5°C | |
| Mar 13 | 21.1°C | 21.5°C | |
| Mar 14 | 20.4°C | 21.3°C | |
| Mar 15 | 20.3°C | 21.3°C | |
| Mar 16 | 20.3°C | 21.8°C | |
| Mar 17 | 20.3°C | 21.8°C | |
| Mar 18 | 20.2°C | 21.5°C | |
| Mar 19 | 20.2°C | 22.0°C | |
| Mar 20 | 20.5°C | 22.0°C | 20.5°C |
| Mar 21 | 21.7°C | 20.7°C | |
| Mar 22 | 22.0°C | 20.8°C | |
| Mar 23 | 22.0°C | 21.0°C | |
| Mar 24 | 22.3°C | 21.1°C | |
| Mar 25 | 21.7°C | 21.3°C | |
| Mar 26 | 22.0°C | 21.4°C | |
| Mar 27 | 21.7°C | 21.6°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 Windy Harbour 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
Annual Water Temperature Trend
Windy Harbour sits on a remote stretch of the far south-west coast, where the Indian Ocean meets rugged headlands and long sandy beaches. Despite the name, conditions can be surprisingly calm on the right day. Water temperatures here are cool but a touch milder than along the Great Australian Bight. In summer, from December to February, the sea usually ranges between 19–22°C, making it quite comfortable for swimming during settled weather. Autumn brings a gradual cooling to around 17–20°C. Winter is colder and more bracing, typically 14–16°C, while spring sees a slow rise again to about 16–18°C, though wind can still add a chill.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 18°C | 21°C | 23°C |
| February | 19°C | 21°C | 24°C |
| March | 19°C | 22°C | 25°C |
| April | 18°C | 22°C | 24°C |
| May | 19°C | 21°C | 24°C |
| June | 17°C | 20°C | 22°C |
| July | 16°C | 20°C | 21°C |
| August | 17°C | 18°C | 20°C |
| September | 16°C | 18°C | 20°C |
| October | 16°C | 18°C | 20°C |
| November | 16°C | 19°C | 21°C |
| December | 17°C | 20°C | 23°C |
* Click on a month to view detailed water temperature data.
Windy Harbour: Weather Forecast
March 21
March 22
March 23
Local Water Conditions and Nearby Spots
Nearby Beaches and Water Temperatures
Cathedral Rock Beach
Windy Harbour Beach
Salmon Beach
Gardner Beach
Pebbley Beach
Swimming Conditions
Swimming at Windy Harbour is allowed, but it’s best approached with a bit of caution. The coastline is exposed, and swell and currents can be strong when the ocean is up. On calm summer days, swimming can be very enjoyable, with clear water and a sandy shoreline providing easy entry. Sheltered pockets near the river mouth or behind headlands often offer gentler conditions. In summer, most people swim without wetsuits, while spring and autumn suit shorter swims. Winter swimming is usually limited to locals or those wearing thermal gear. Overall, Windy Harbour offers rewarding swimming for confident swimmers who keep an eye on weather and respect the power of the southern Indian Ocean.
🏄♀️ Nearby Surf Spots and Water Temperatures
Windy Harbour
Mandalay Beach
Hush Hush Beach
Location, Type and Nearby Places
Address: Shire of Manjimup
Place Tags:BeachSurf SpotCoastal Town
Water Temperature in Nearby Places
