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Waikanae Beach – current water temperature and swimming conditions

This page shows the current water temperature at Waikanae Beach in Wellington 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.

Waikanae Beach
Waikanae Beach © M Pooley

Current Sea Water Temperature

12.7°C
Today
12.7°C
Yesterday
12.3°C
A Week Ago

The average sea water temperature today in Waikanae Beach is about 13°C.

Water Temperature in Waikanae Beach: 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 June 10 to July 10

While water temperatures in Waikanae Beach declined overall during the past month, they have shown a noticeable rebound over the last week.

According to our forecast, Sea water temperature in Waikanae Beach will be 12.6°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
Jul 213.3°C13.0°C
Jul 312.4°C12.8°C
Jul 412.3°C12.8°C
Jul 512.5°C13.0°C
Jul 612.5°C13.0°C
Jul 712.7°C13.0°C
Jul 812.8°C13.3°C
Jul 912.7°C13.0°C
Jul 1012.7°C13.0°C12.7°C
Jul 1112.8°C12.7°C
Jul 1212.5°C12.7°C
Jul 1312.3°C12.6°C
Jul 1412.5°C12.6°C
Jul 1512.8°C12.6°C
Jul 1612.5°C12.6°C
Jul 1712.8°C12.6°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 Waikanae 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

Waikanae Beach is a relaxed coastal community on the Kāpiti Coast in the Wellington Region, facing west across Cook Strait. Sea temperatures here reflect the steady tidal movement and cooler currents that pass through the strait. In winter, from June to August, the water generally ranges between 10–13°C, which feels distinctly cold and is usually only comfortable for hardy swimmers or those in full wetsuits. Through spring, temperatures gradually rise to around 13–15°C. Summer, from December to March, brings the most settled and inviting conditions, with sea temperatures commonly sitting between 16–19°C during calm spells. Early autumn can still see 15–17°C before the water cools again heading into winter.

Monthly Water Temperature Range (Min, Max & Average)

Month Min Avg Max
January14°C17°C20°C
February15°C18°C21°C
March14°C17°C20°C
April14°C16°C19°C
May12°C15°C18°C
June11°C14°C16°C
July11°C13°C16°C
August10°C12°C16°C
September11°C13°C16°C
October10°C13°C16°C
November12°C14°C18°C
December13°C15°C20°C

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

Waikanae Beach: Weather Forecast

July 11

6°C / 9°C
few clouds: 11-25%
humidity: 74% | wind: 7 kmh

July 12

8°C / 10°C
clear sky
humidity: 74% | wind: 18 kmh

July 13

11°C / 12°C
light rain
humidity: 81% | wind: 32 kmh

Local Water Conditions and Nearby Spots

Swimming Conditions

Swimming is allowed at Waikanae Beach and it’s a popular spot during the warmer months, especially for families and local residents. The beach is wide and sandy, and on calm summer days the water can be relatively gentle compared to more exposed stretches of coast. However, currents and occasional swells can still develop depending on wind and tide. In peak summer there may be lifeguard patrols, and swimming between the flags is the safest option. Outside the main season, cooler water temperatures mean most people prefer shorter dips or wear thermal gear. On a fine, settled day, Waikanae Beach offers a refreshing and scenic Cook Strait swimming experience close to Wellington.

🏄‍♀️ Nearby Surf Spots and Water Temperatures

Peka Peka

⭐ 2/5
11.6°C

Paekakariki

⭐ 1/5
13.1°C

Pukerua Bay

⭐ 1/5
11.1°C
22 km away 📍 Beach and reef

Otaki Beach

⭐ 1/5
13.0°C

The Pa Point

⭐ 2/5
12.2°C

The Pa

⭐ 2/5
11.9°C

Titahi Bay

⭐ 2/5
13.5°C

Mana Island

⭐ 3/5
12.2°C

Waitarere

⭐ 1/5
13.8°C

Frequently Asked Questions

What is the sea water temperature in Waikanae Beach today?
Sea water temperature in Waikanae Beach in the Cook Strait today is 13°C.
What is the water temperature in Waikanae Beach during summer?
During summer, the water temperature in Waikanae Beach typically ranges from 13°C to 21°C.
What is the water temperature in Waikanae Beach during autumn?
During autumn, the water temperature in Waikanae Beach typically ranges from 12°C to 20°C.
What is the water temperature in Waikanae Beach during spring?
During spring, the water temperature in Waikanae Beach typically ranges from 10°C to 18°C.
What is the water temperature in Waikanae Beach during winter?
During winter, the water temperature in Waikanae Beach typically ranges from 10°C to 16°C.
Which beaches are popular in the Waikanae Beach area?
Some of the most popular beaches in the Waikanae Beach area include: .
What are the nearest surf spots to Waikanae Beach?
Some of the closest surf spots near Waikanae Beach include: Peka Peka, Paekakariki, Pukerua Bay, Otaki Beach, The Pa Point.