Vivonne Bay – current water temperature and swimming conditions
This page shows the current water temperature at Vivonne Bay in South 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 Vivonne Bay is about 15°C.
Water Temperature in Vivonne Bay: Daily Trends, Historical Records, and Forecast
⚠️ Water at this temperature feels cold and is generally suitable only for brief immersion. Swimming without a wetsuit can quickly become uncomfortable, and exposure time is usually short. These conditions are mainly suitable for experienced swimmers or those using proper thermal gear.
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
Water temperatures in Vivonne Bayfell over the past month, but have levelled out during the last week.
According to our forecast, Sea water temperature in Vivonne Bay will be 14.1°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 |
|---|---|---|---|
| Aug 15 | 14.6°C | 13.5°C | |
| Aug 16 | 14.3°C | 13.8°C | |
| Aug 17 | 14.7°C | 13.8°C | |
| Aug 18 | 14.6°C | 13.8°C | |
| Aug 19 | 14.4°C | 13.8°C | |
| Aug 20 | 14.7°C | 13.8°C | |
| Aug 21 | 14.6°C | 13.5°C | |
| Aug 22 | 14.4°C | 13.8°C | |
| Aug 23 | 14.7°C | 13.8°C | 14.7°C |
| Aug 24 | 13.7°C | 14.6°C | |
| Aug 25 | 13.7°C | 14.5°C | |
| Aug 26 | 13.3°C | 14.4°C | |
| Aug 27 | 13.3°C | 14.3°C | |
| Aug 28 | 13.3°C | 14.3°C | |
| Aug 29 | 13.7°C | 14.2°C | |
| Aug 30 | 13.7°C | 14.1°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 Vivonne Bay 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
Vivonne Bay sits on the south coast of Kangaroo Island, opening out to the Great Australian Bight, and its water temperatures reflect the clean, cool nature of the southern ocean. In summer, the sea is at its most inviting, usually around 17–20°C, which feels refreshing rather than warm on sunny days. Autumn brings a gradual cooling to roughly 15–18°C, while winter is noticeably cold, often sitting between 12–14°C. Spring warms slowly, with water temperatures commonly around 13–16°C, influenced by changing winds and ocean conditions.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 16°C | 20°C | 22°C |
| February | 18°C | 20°C | 22°C |
| March | 18°C | 20°C | 21°C |
| April | 17°C | 19°C | 21°C |
| May | 14°C | 17°C | 19°C |
| June | 13°C | 16°C | 18°C |
| July | 12°C | 15°C | 16°C |
| August | 11°C | 14°C | 16°C |
| September | 12°C | 14°C | 16°C |
| October | 12°C | 15°C | 17°C |
| November | 14°C | 16°C | 19°C |
| December | 16°C | 18°C | 21°C |
* Click on a month to view detailed water temperature data.
Vivonne Bay: Weather Forecast
August 23
August 24
August 25
August 26
Local Water Conditions and Nearby Spots
Nearby Beaches and Water Temperatures
Vivonne Bay
Seal Bay
Southern Ocean Lodge
Snelling Beach
Remarkable Rocks
Stokes Bay
Swimming Conditions
Swimming is allowed at Vivonne Bay and is widely regarded as some of the best on the island. The long, sandy beach and gently sloping shoreline often create approachable conditions, especially in calmer weather. While the bay is still open to the ocean, it generally has fewer strong rips than more exposed parts of the coast, making it suitable for confident swimmers and relaxed summer swims. Conditions can still change, so awareness is important. Many swimmers choose wetsuits outside peak summer to stay comfortable in the cooler water. Overall, Vivonne Bay offers excellent swimming opportunities, combining clear water, natural beauty and conditions that suit enjoyable ocean swims when the sea is settled.
🏄♀️ Nearby Surf Spots and Water Temperatures
Vivonne Bay
Cape Young Husband
Cape Kersaint
Hanson Bay
Location, Type and Nearby Places
Address: Kangaroo Island Council
Place Tags:Surf SpotCoastal Town
Water Temperature in Nearby Places
