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Māpua – current water temperature and swimming conditions

This page shows the current water temperature at Māpua 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.

Māpua
Māpua © By Wildman NZ, CC BY-SA 4.0

Current Sea Water Temperature

19.0°C
Today
19.0°C
Yesterday
19.2°C
A Week Ago

The average sea water temperature today in Māpua is about 19°C.

Water Temperature in Māpua: 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 Māpua 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 Māpua will be 15.3°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 2219.2°C16.8°C
Mar 2319.1°C16.5°C
Mar 2419.2°C16.3°C
Mar 2519.1°C16.5°C
Mar 2619.3°C16.8°C
Mar 2719.3°C16.3°C
Mar 2819.2°C16.5°C
Mar 2919.0°C16.8°C
Mar 3019.0°C16.8°C19.0°C
Mar 3115.5°C18.5°C
Apr 115.3°C17.9°C
Apr 214.8°C17.4°C
Apr 314.0°C16.9°C
Apr 413.8°C16.4°C
Apr 513.8°C15.8°C
Apr 613.8°C15.3°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 Māpua 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

Māpua is a small coastal village in the Tasman Region, set along the shores of Tasman Bay and influenced by the wider tidal flows of Cook Strait. Water temperatures here are generally milder than on more exposed coasts. In winter, from June to August, the sea typically ranges between 10–13°C, which feels cool and is usually only comfortable for hardy swimmers or those wearing full wetsuits. Through spring, temperatures gradually rise to around 12–15°C. Summer, from December to March, brings the warmest conditions, with water temperatures commonly sitting between 17–21°C during settled, sunny spells. Early autumn can still see 16–18°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.

Māpua: 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 several small beaches and along the Māpua Wharf area, and it’s popular during the warmer months. The bay setting provides relatively calm conditions on light wind days, with gentle wave action compared to open strait coastlines. Tidal movement is noticeable, and shallow areas can warm slightly in summer, making the water feel more comfortable. There are generally no permanent lifeguard patrols, so swimmers should assess conditions carefully before entering. On fine summer days, the water can be pleasant and suitable for families and casual swimmers. Outside the warmer season, thermal gear is recommended, as the sea remains cool for much of the year despite the sheltered location.

🏄‍♀️ Nearby Surf Spots and Water Temperatures

Rabbit Island

⭐ 2/5
18.0°C

Ruby Bay

⭐ 2/5
20.0°C

Tahunanui bar

⭐ 3/5
18.4°C

Tahunanui Beach

⭐ 1/5
19.2°C

Outer Cut

⭐ 4/5
18.1°C

Inner Cut

⭐ 4/5
18.7°C

Schnappers Point

⭐ 4/5
19.4°C

The Glen

⭐ 3/5
19.9°C

Cable Bay

⭐ 3/5
19.4°C

Frequently Asked Questions

What is the sea water temperature in Māpua today?
Sea water temperature in Māpua in the Cook Strait today is 19°C.
What is the water temperature in Māpua during summer?
During summer, the water temperature in Māpua typically ranges from 13°C to 19°C.
What is the water temperature in Māpua during autumn?
During autumn, the water temperature in Māpua typically ranges from 11°C to 19°C.
What is the water temperature in Māpua during spring?
During spring, the water temperature in Māpua typically ranges from 10°C to 16°C.
What is the water temperature in Māpua during winter?
During winter, the water temperature in Māpua typically ranges from 9°C to 16°C.
Which beaches are popular in the Māpua area?
Some of the most popular beaches in the Māpua area include: .
What are the nearest surf spots to Māpua?
Some of the closest surf spots near Māpua include: Rabbit Island, Ruby Bay, Tahunanui Beach, Tahunanui bar, Outer Cut.