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Tōtaranui Beach – current water temperature and swimming conditions

This page shows the current water temperature at Tōtaranui Beach in Tasman 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.

Tōtaranui Beach
Tōtaranui Beach © Adi Chapal

Current Sea Water Temperature

18.4°C
Today
18.4°C
Yesterday
18.7°C
A Week Ago

The average sea water temperature today in Tōtaranui Beach is about 18°C.

Water Temperature in Tōtaranui Beach: Daily Trends, Historical Records, and Forecast

⚠️ Water in this range feels cool but still manageable for many swimmers. Short to moderate swims are comfortable, especially in warm weather. Some people may prefer a wetsuit for longer stays, particularly when swimming actively or outside peak summer conditions.

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

From February 27 to March 29

Water temperatures in Tōtaranui Beach 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 Tōtaranui Beach will be 15.1°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 2218.8°C16.8°C
Mar 2318.7°C16.5°C
Mar 2418.7°C16.3°C
Mar 2518.8°C16.5°C
Mar 2618.9°C16.8°C
Mar 2718.7°C16.3°C
Mar 2818.7°C16.3°C
Mar 2918.4°C16.8°C
Mar 3018.4°C16.8°C18.4°C
Mar 3115.5°C17.9°C
Apr 115.3°C17.5°C
Apr 214.8°C17.0°C
Apr 314.0°C16.5°C
Apr 413.8°C16.1°C
Apr 513.8°C15.6°C
Apr 613.8°C15.1°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 Tōtaranui Beach 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

30°C
25°C
20°C
15°C
10°c
5°C
0°C

Annual Water Temperature Trend

Tōtaranui Beach is a broad, golden sweep of sand at the northern end of Abel Tasman National Park in the Tasman Region, opening toward Tasman Bay and influenced by tidal flows connected to Cook Strait. Despite its more open position compared to smaller inlets, water temperatures here remain relatively mild for the South Island. In winter, from June to August, the sea typically ranges between 11–14°C, which feels cool and is generally comfortable only for short swims or with a wetsuit. Through spring, temperatures gradually rise to around 13–16°C. Summer, from December to March, brings the warmest conditions, with water temperatures commonly sitting between 18–22°C during settled, sunny spells. Early autumn can still see 17–19°C before cooling again as winter approaches.

Monthly Water Temperature Range (Min, Max & Average)

Month Min Avg Max
January14°C16°C19°C
February14°C17°C19°C
March14°C16°C19°C
April12°C15°C17°C
May11°C14°C17°C
June10°C13°C16°C
July10°C12°C15°C
August9°C12°C14°C
September10°C12°C14°C
October10°C13°C15°C
November11°C14°C16°C
December13°C15°C18°C

* Click on a month to view detailed water temperature data.

Tōtaranui Beach: Weather Forecast

March 30

11°C / 24°C
overcast clouds: 85-100%
humidity: 86% | wind: 4 kmh

March 31

8°C / 12°C
overcast clouds: 85-100%
humidity: 76% | wind: 7 kmh

April 1

8°C / 16°C
clear sky
humidity: 71% | wind: 4 kmh

April 2

11°C / 22°C
clear sky
humidity: 75% | wind: 7 kmh

Local Water Conditions and Nearby Spots

Swimming Conditions

Swimming is allowed at Tōtaranui and it’s a popular activity during the warmer months, especially with campers and walkers finishing sections of the coast track. The beach is wide and gently sloping, and while it can experience moderate swell due to its open aspect, conditions are often manageable in settled weather. Tidal movement is present, and wind can influence surface chop, so swimmers should assess conditions before entering the water. There are generally no regular lifeguard patrols. On fine summer days, the water can feel pleasant and suitable for families and confident swimmers. Outside the warmer season, thermal gear is recommended, as the sea remains cool for much of the year.

🏄‍♀️ Nearby Surf Spots and Water Temperatures

Tata Beach

⭐ 1/5
18.4°C

Pohara Beach

⭐ 1/5
17.4°C

Patons Rock

⭐ 2/5
19.3°C
21 km away 📍 Beach and reef

Onekaka

⭐ 2/5
18.0°C

Para Para Rivermouth

⭐ 1/5
19.1°C

Farewell Spit

⭐ 2/5
18.4°C
42 km away 📍 Beach and point

Fletchers Beach

⭐ 2/5
17.1°C

Ruby Bay

⭐ 2/5
18.3°C

Wharariki Beach

⭐ 3/5
19.3°C

Location, Type and Nearby Places

Address: Tasman Region 7183, New Zealand

Place Tags:Beach

Water Temperature in Nearby Places

Frequently Asked Questions

What is the sea water temperature in Tōtaranui Beach today?
Sea water temperature in Tōtaranui Beach in the Cook Strait today is 18°C.
What is the water temperature in Tōtaranui Beach during summer?
During summer, the water temperature in Tōtaranui Beach typically ranges from 13°C to 19°C.
What is the water temperature in Tōtaranui Beach during autumn?
During autumn, the water temperature in Tōtaranui Beach typically ranges from 11°C to 19°C.
What is the water temperature in Tōtaranui Beach during spring?
During spring, the water temperature in Tōtaranui Beach typically ranges from 10°C to 16°C.
What is the water temperature in Tōtaranui Beach during winter?
During winter, the water temperature in Tōtaranui Beach typically ranges from 9°C to 16°C.
Which beaches are popular in the Tōtaranui Beach area?
Some of the most popular beaches in the Tōtaranui Beach area include: .
What are the nearest surf spots to Tōtaranui Beach?
Some of the closest surf spots near Tōtaranui Beach include: Tata Beach, Pohara Beach, Patons Rock, Onekaka, Para Para Rivermouth.