Cudmirrah – current water temperature and swimming conditions
This page shows the current water temperature at Cudmirrah 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 Cudmirrah is about 21°C.
Water Temperature in Cudmirrah: 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 Cudmirrah 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 Cudmirrah 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 | 22.2°C | 23.0°C | |
| Mar 13 | 22.3°C | 23.3°C | |
| Mar 14 | 21.7°C | 23.0°C | |
| Mar 15 | 21.7°C | 23.3°C | |
| Mar 16 | 21.6°C | 22.5°C | |
| Mar 17 | 21.4°C | 22.5°C | |
| Mar 18 | 21.4°C | 22.8°C | |
| Mar 19 | 21.5°C | 22.5°C | |
| Mar 20 | 21.4°C | 22.5°C | 21.4°C |
| Mar 21 | 22.7°C | 21.5°C | |
| Mar 22 | 23.0°C | 21.7°C | |
| Mar 23 | 22.7°C | 21.8°C | |
| Mar 24 | 22.0°C | 21.9°C | |
| Mar 25 | 22.0°C | 22.1°C | |
| Mar 26 | 22.7°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 Cudmirrah 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
Cudmirrah sits on the South Coast of New South Wales, facing the open Tasman Sea, and its water temperatures follow a clear seasonal pattern typical of this stretch of coastline. In summer, the ocean usually warms to around 21–24 °C, making conditions comfortable for swimming and cooling off on hot days. Autumn often remains mild, with temperatures commonly between 19–22 °C, while spring is cooler at roughly 17–20 °C as the sea gradually warms after winter. During winter, water temperatures typically drop to about 16–18 °C, which can feel cold without a wetsuit, especially when southerly winds add an extra chill.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 19°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 | 15°C | 18°C | 20°C |
| September | 16°C | 18°C | 20°C |
| October | 16°C | 19°C | 21°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.
Cudmirrah: Weather Forecast
March 21
March 22
March 23
Local Water Conditions and Nearby Spots
Nearby Beaches and Water Temperatures
Kirby's Beach
Berrara Beach
Cudmirrah Beach
Tiny Shell Beach
Cudmirrah Beach
Monument Beach
Flat Rock Beach
Dee Beach
Swimming Conditions
Swimming in Cudmirrah is allowed and offers a mix of ocean and lagoon environments. The long, open beach is exposed to Tasman Sea swells, so waves and currents are common and conditions suit confident swimmers, particularly in summer when the water is warmest. Nearby lakes and inlets provide calmer, more sheltered options that are popular with families and anyone looking for an easier swim. On calmer ocean days, swimming can be refreshing and enjoyable, while in cooler months most people limit swims to shorter sessions. Overall, Cudmirrah provides clean water, reliable seasonal temperatures, and flexible swimming options depending on conditions and experience.
🏄♀️ Nearby Surf Spots and Water Temperatures
Cudmirrah Reef
Coneeleys Reef
Bendalong Beach
Green Island
Aussie pipe
Bannister Head Suck Rock
Golf Course Reef
Mollymook Beach
Blenheim Beach
Location, Type and Nearby Places
Address: City of Shoalhaven
Place Tags:Surf SpotCoastal Town
Water Temperature in Nearby Places
