Wharekaho – current water temperature and swimming conditions
This page shows the current water temperature at Wharekaho in Waikato Region. 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 Wharekaho is about 21°C.
Water Temperature in Wharekaho: 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 Wharekaho 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 Wharekaho will be 18.4°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 22 | 20.8°C | 20.3°C | |
| Mar 23 | 20.7°C | 20.5°C | |
| Mar 24 | 20.7°C | 20.3°C | |
| Mar 25 | 20.7°C | 20.3°C | |
| Mar 26 | 20.8°C | 20.5°C | |
| Mar 27 | 20.8°C | 20.3°C | |
| Mar 28 | 20.7°C | 20.5°C | |
| Mar 29 | 20.6°C | 20.8°C | |
| Mar 30 | 20.6°C | 20.8°C | 20.6°C |
| Mar 31 | 20.3°C | 20.3°C | |
| Apr 1 | 21.0°C | 20.0°C | |
| Apr 2 | 18.8°C | 19.7°C | |
| Apr 3 | 19.0°C | 19.4°C | |
| Apr 4 | 16.8°C | 19.1°C | |
| Apr 5 | 17.5°C | 18.7°C | |
| Apr 6 | 17.3°C | 18.4°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 Wharekaho 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
Wharekaho, also known as Simpsons Beach, is a small coastal settlement near Whitianga on the eastern side of the Coromandel Peninsula in the Waikato Region, facing the Pacific Ocean. The beach is partly sheltered by offshore islands, which can help reduce the impact of larger swells compared with fully exposed ocean beaches. In summer, particularly from January through March, water temperatures generally range between 19 and 22°C. Most locals find this comfortable for swimming on warm, settled days. During autumn, temperatures ease back to around 17 to 20°C. Winter brings cooler readings, typically between 14 and 16°C, while spring sees a gradual rise from roughly 15 up to 18°C as the weather improves. Surface temperatures can vary slightly with changing wind and swell patterns.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 18°C | 20°C | 24°C |
| February | 19°C | 22°C | 24°C |
| March | 18°C | 21°C | 23°C |
| April | 17°C | 19°C | 22°C |
| May | 16°C | 18°C | 21°C |
| June | 14°C | 16°C | 18°C |
| July | 13°C | 15°C | 17°C |
| August | 13°C | 15°C | 16°C |
| September | 13°C | 14°C | 17°C |
| October | 13°C | 15°C | 17°C |
| November | 15°C | 17°C | 20°C |
| December | 16°C | 19°C | 22°C |
* Click on a month to view detailed water temperature data.
Wharekaho: Weather Forecast
March 30
March 31
April 1
April 2
Local Water Conditions and Nearby Spots
Nearby Beaches and Water Temperatures
Wharekaho/Simpsons Beach
Ohuka Beach
Whauwhau Beach
Whitianga Beach
Buffalo Beach
Waitaia Bay
Simpsons Beach
Lonely Bay
Cooks Beach
Swimming Conditions
Swimming is allowed at Wharekaho Beach, and the gently sloping sandy shoreline makes it suitable for families and casual swimmers. Surf is often light to moderate due to the partial shelter provided by nearby landforms, and strong rip currents are uncommon in normal conditions. However, conditions can change with larger ocean swells. There are no regular lifeguard patrols, so swimmers should assess the sea state carefully before entering the water. In favourable summer weather, Wharekaho offers pleasant and generally safe swimming opportunities.
