Hamilton Island – current water temperature and swimming conditions
This page shows the current water temperature at Hamilton Island in Queensland. 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 Hamilton Island is about 27°C.
Water Temperature in Hamilton Island: Daily Trends, Historical Records, and Forecast
✅ This is warm water that suits almost everyone. Swimming feels easy and pleasant, even for extended stays, and there is little risk of discomfort from cooling. These temperatures are ideal for family swimming, snorkelling, and most water activities, offering a good balance between comfort and refreshment.
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 Hamilton Island 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 Hamilton Island will be 28.3°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 | 28.3°C | 29.3°C | |
| Mar 13 | 28.4°C | 28.5°C | |
| Mar 14 | 28.2°C | 28.5°C | |
| Mar 15 | 28.2°C | 28.8°C | |
| Mar 16 | 28.1°C | 28.8°C | |
| Mar 17 | 27.8°C | 28.8°C | |
| Mar 18 | 27.6°C | 28.5°C | |
| Mar 19 | 27.7°C | 28.0°C | |
| Mar 20 | 27.4°C | 28.0°C | 27.4°C |
| Mar 21 | 28.0°C | 27.5°C | |
| Mar 22 | 28.3°C | 27.7°C | |
| Mar 23 | 28.3°C | 27.8°C | |
| Mar 24 | 27.7°C | 27.9°C | |
| Mar 25 | 27.7°C | 28.1°C | |
| Mar 26 | 28.7°C | 28.2°C | |
| Mar 27 | 28.0°C | 28.3°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 Hamilton Island 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
Hamilton Island sits in the heart of the Whitsundays off Queensland’s North Coast, where the Coral Sea delivers consistently warm water through the year. In summer, from around December to March, sea temperatures usually sit between 27 and 29 °C, giving the water a distinctly tropical feel that suits long, relaxed swims. During winter, typically June to August, temperatures ease back to about 22–24 °C, which is still mild and comfortable, especially with plenty of sunshine. Spring and autumn are often ideal, with water temperatures commonly ranging from 24–26 °C and calmer conditions around the island.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 27°C | 29°C | 31°C |
| February | 27°C | 29°C | 31°C |
| March | 26°C | 29°C | 31°C |
| April | 25°C | 28°C | 30°C |
| May | 22°C | 26°C | 28°C |
| June | 20°C | 24°C | 26°C |
| July | 20°C | 23°C | 24°C |
| August | 20°C | 23°C | 24°C |
| September | 20°C | 24°C | 27°C |
| October | 22°C | 26°C | 29°C |
| November | 24°C | 27°C | 29°C |
| December | 26°C | 28°C | 30°C |
* Click on a month to view detailed water temperature data.
Hamilton Island: Weather Forecast
March 21
March 22
March 23
March 24
Local Water Conditions and Nearby Spots
Nearby Beaches and Water Temperatures
Swimming Conditions
Swimming on Hamilton Island is allowed and very popular, thanks to sheltered beaches and generally gentle waters. Many swimming spots are protected from strong swell, making them suitable for casual swimmers and families when conditions are settled. As with much of tropical Queensland, marine stingers can be present during the warmer months, usually from November to May, so swimmers often wear stinger suits or choose designated safe areas. Outside the stinger season, the clear, warm water and sheltered bays make ocean swimming straightforward and enjoyable. With reliable sea temperatures and well-managed beaches, Hamilton Island offers excellent swimming conditions for most of the year when local advice is followed.