Raglan – current water temperature and swimming conditions

Water Temperature in Raglan: Daily Trends, Historical Records, and Forecast

⚠️ This is cool water that may feel brisk on entry. Swimming is usually limited to short sessions, and prolonged stays can become uncomfortable without thermal protection. Many swimmers choose a wetsuit, especially for surfing or open-water swimming.

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 Raglan 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 Raglan will be 17.1°C in the next 7 days. See the table below for daily data for the upcoming week.

Table of Daily Sea Temperature Data

Annual Water Temperature Overview by Month

Monthly Water Temp Ranges

30°C

25°C

20°C

15°C

10°c

5°C

0°C

Annual Water Temperature Trend

Raglan is a well-known coastal town on the west coast of the Waikato Region, overlooking the Tasman Sea and famous for its surf beaches and dramatic scenery. The coastline is exposed, and ocean swells are a regular feature throughout the year. In summer, particularly from January through March, water temperatures generally range between 18 and 21°C. Most locals consider this comfortable enough for swimming on warm days, although the west coast water can feel cooler than more sheltered east coast beaches. During autumn, temperatures ease back to around 16 to 19°C. Winter brings cooler readings, typically between 13 and 15°C, while spring sees a gradual rise from roughly 14 up to 17°C as the weather improves. Wind and swell can influence short-term surface temperatures.