Minnamurra – current water temperature and swimming conditions
This page shows the current water temperature at Minnamurra in New South Wales. 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 Minnamurra is about 22°C.
Water Temperature in Minnamurra: 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
Water temperatures in Minnamurra have been gradually cooling over the past month, with a further drop recorded during the last week.
According to our forecast, Sea water temperature in Minnamurra will be 22.3°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 | 22.5°C | 23.5°C | |
| Mar 13 | 22.5°C | 23.0°C | |
| Mar 14 | 22.2°C | 23.0°C | |
| Mar 15 | 22.6°C | 23.3°C | |
| Mar 16 | 21.5°C | 23.3°C | |
| Mar 17 | 21.5°C | 22.8°C | |
| Mar 18 | 21.6°C | 23.0°C | |
| Mar 19 | 21.7°C | 22.8°C | |
| Mar 20 | 21.8°C | 22.8°C | 21.8°C |
| Mar 21 | 22.8°C | 21.9°C | |
| Mar 22 | 23.0°C | 21.9°C | |
| Mar 23 | 22.5°C | 22.0°C | |
| Mar 24 | 22.8°C | 22.1°C | |
| Mar 25 | 23.0°C | 22.2°C | |
| Mar 26 | 22.5°C | 22.2°C | |
| Mar 27 | 23.0°C | 22.3°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 Minnamurra 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
Minnamurra sits where the river meets the Tasman Sea on the Illawarra coast, and water temperatures here follow the typical seasonal pattern of this part of New South Wales. In summer, sea temperatures usually range from about 21–24 °C, making the water comfortable for long swims and relaxed paddling. Autumn often stays mild, with temperatures around 19–22 °C, while spring is cooler at roughly 17–20 °C as the ocean gradually warms. Winter brings the coldest conditions, when water temperatures commonly drop to about 16–18 °C, which can feel sharp without a wetsuit but is still manageable for brief dips on calm days.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 20°C | 23°C | 25°C |
| February | 22°C | 23°C | 26°C |
| March | 21°C | 23°C | 25°C |
| April | 19°C | 22°C | 25°C |
| May | 16°C | 21°C | 24°C |
| June | 15°C | 19°C | 23°C |
| July | 15°C | 19°C | 21°C |
| August | 16°C | 18°C | 20°C |
| September | 16°C | 18°C | 20°C |
| October | 16°C | 19°C | 22°C |
| November | 18°C | 20°C | 22°C |
| December | 18°C | 21°C | 25°C |
* Click on a month to view detailed water temperature data.
Minnamurra: Weather Forecast
March 21
March 22
March 23
March 24
Local Water Conditions and Nearby Spots
Nearby Beaches and Water Temperatures
Minnamurra
Boyds Beach
Jones Beach
Jones Beach
Killalea Beach
The Boneyard Beach
Bassett Park
Bombo Beach
Shellharbour South Beach
Swimming Conditions
Swimming at Minnamurra is allowed and offers different options depending on location. The Minnamurra River mouth and estuary provide calmer, more sheltered water, which is well suited to families and anyone looking for an easy swim away from strong surf. Along the open beach, conditions are more exposed to Tasman Sea swells, so waves and currents can be present, particularly after windy weather. On quieter summer days, ocean swimming is enjoyable for confident swimmers, while the river remains a popular choice year-round. Overall, Minnamurra combines reliable seasonal water temperatures with both sheltered and open-water swimming opportunities, giving visitors flexibility based on conditions.
🏄♀️ Nearby Surf Spots and Water Temperatures
Mystics
The Farm
Boneyard
Bombo Beach
Cowries
Kiama Pool
Kiama Wedge
Barrack Point
Windang Island
Location, Type and Nearby Places
Address: Municipality of Kiama
Place Tags:BeachCoastal Town
Water Temperature in Nearby Places
