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Shag Point – current water temperature and swimming conditions

This page shows the current water temperature at Shag Point in Otago 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.

Shag Point
Shag Point © By Bernard Spragg, CC0

Current Sea Water Temperature

13.3°C
Today
13.4°C
Yesterday
13.8°C
A Week Ago

The average sea water temperature today in Shag Point is about 13°C.

Water Temperature in Shag Point: Daily Trends, Historical Records, and Forecast

❌ Water at this temperature feels cold and is generally suitable only for brief immersion. Swimming without a wetsuit can quickly become uncomfortable, and exposure time is usually short. These conditions are mainly suitable for experienced swimmers or those using proper thermal gear.

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 April 14 to May 14

Water temperatures in Shag Point 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 Shag Point will be 12.0°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
May 613.5°C13.0°C
May 713.5°C13.0°C
May 813.8°C13.0°C
May 913.8°C13.0°C
May 1013.5°C13.0°C
May 1113.5°C12.8°C
May 1213.8°C12.5°C
May 1313.4°C12.8°C
May 1413.3°C12.8°C13.3°C
May 1511.5°C13.1°C
May 1612.5°C12.9°C
May 1711.5°C12.8°C
May 1812.8°C12.6°C
May 1912.0°C12.4°C
May 2011.5°C12.2°C
May 2112.0°C12.0°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 Shag Point 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

Shag Point is a small coastal settlement in North Otago, facing the Pacific Ocean and known for its rocky shoreline and fishing spots. Sea temperatures here reflect the cool southern waters typical of this latitude. In winter, from June to August, the water generally ranges between 8–11°C, which feels properly cold and is usually only comfortable for hardy swimmers or those wearing full wetsuits. Through spring, temperatures gradually rise to around 10–13°C. Summer, from December to March, brings the mildest conditions, with sea temperatures commonly sitting between 13–16°C during settled spells. Early autumn can still see 12–15°C before cooling again as winter approaches.

Monthly Water Temperature Range (Min, Max & Average)

Month Min Avg Max
January11°C14°C17°C
February12°C15°C19°C
March12°C14°C18°C
April11°C13°C17°C
May9°C12°C15°C
June9°C11°C13°C
July8°C10°C13°C
August8°C10°C11°C
September8°C10°C12°C
October8°C11°C13°C
November8°C12°C15°C
December10°C14°C17°C

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

Shag Point: Weather Forecast

May 15

7°C / 11°C
scattered clouds: 25-50%
humidity: 80% | wind: 7 kmh

May 16

7°C / 11°C
clear sky
humidity: 81% | wind: 11 kmh

May 17

6°C / 11°C
clear sky
humidity: 80% | wind: 4 kmh

May 18

7°C / 11°C
broken clouds: 51-84%
humidity: 78% | wind: 4 kmh

Local Water Conditions and Nearby Spots

Swimming Conditions

Swimming is allowed around Shag Point, though the coastline is mostly rocky rather than sandy. Small sheltered spots can sometimes provide calmer water on fine days, but the area remains exposed to Pacific swells and changing weather. Waves and currents may develop depending on wind direction and tide, and there are generally no regular lifeguard patrols. Swimmers need to assess conditions carefully before entering the water, especially around rocky areas. During summer, short swims can be refreshing for confident swimmers used to cooler temperatures. Outside the warmer season, thermal gear is strongly recommended. Shag Point offers scenic coastal views and clear southern waters, but the ocean remains brisk year-round.

🏄‍♀️ Nearby Surf Spots and Water Temperatures

Shag Beach

⭐ 3/5
12.5°C
6 km away 📍 Beach and reef

Lighthouse (Spot C)

⭐ 3/5
13.0°C
10 km away 📍 Reef and point

Moeraki

⭐ 3/5
14.2°C
11 km away 📍 Beach and reef

Wainakarua River Mouth

⭐ 3/5
13.0°C
21 km away 📍 Beach reef and point

Pipeline (Dunedin)

⭐ 3/5
15.4°C
22 km away 📍 River bar

Karitane Point

⭐ 4/5
15.5°C

All Day Bay

⭐ 3/5
12.2°C
28 km away 📍 Beach reef and point

Crossroads

⭐ 3/5
13.3°C

Kakanui River Mouth

⭐ 3/5
13.1°C
31 km away 📍 Beach/river bar

Location, Type and Nearby Places

Address: Waitaki District

Place Tags:BeachCoastal Town

Water Temperature in Nearby Places

Frequently Asked Questions

What is the sea water temperature in Shag Point today?
Sea water temperature in Shag Point in the Pacific Ocean today is 13°C.
What is the water temperature in Shag Point during summer?
During summer, the water temperature in Shag Point typically ranges from 10°C to 19°C.
What is the water temperature in Shag Point during autumn?
During autumn, the water temperature in Shag Point typically ranges from 9°C to 18°C.
What is the water temperature in Shag Point during spring?
During spring, the water temperature in Shag Point typically ranges from 8°C to 15°C.
What is the water temperature in Shag Point during winter?
During winter, the water temperature in Shag Point typically ranges from 8°C to 13°C.
Which beaches are popular in the Shag Point area?
Some of the most popular beaches in the Shag Point area include: .
What are the nearest surf spots to Shag Point?
Some of the closest surf spots near Shag Point include: Shag Beach, Lighthouse (Spot C), Moeraki, Wainakarua River Mouth, Pipeline (Dunedin).