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Rapahoe – current water temperature and swimming conditions

This page shows the current water temperature at Rapahoe in West Coast 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.

Rapahoe
Rapahoe © Nate F

Current Sea Water Temperature

12.7°C
Today
12.8°C
Yesterday
12.9°C
A Week Ago

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

Water Temperature in Rapahoe: 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 July 28 to August 27

Over the past 30 days, water temperatures in Rapahoe have generally increased, although a slight cooling trend has set in over the last week.

According to our forecast, Sea water temperature in Rapahoe will be 13.1°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
Aug 1912.8°C12.8°C
Aug 2012.8°C13.0°C
Aug 2112.9°C13.0°C
Aug 2212.9°C13.0°C
Aug 2312.9°C13.0°C
Aug 2412.9°C13.0°C
Aug 2513.0°C13.0°C
Aug 2612.8°C12.8°C
Aug 2712.7°C12.8°C12.7°C
Aug 2813.0°C12.8°C
Aug 2913.0°C12.8°C
Aug 3013.0°C12.9°C
Aug 3113.0°C12.9°C
Sep 113.0°C13.0°C
Sep 213.3°C13.1°C
Sep 313.3°C13.1°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 Rapahoe 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

Rapahoe is a small coastal settlement north of Greymouth in the West Coast Region, facing the Tasman Sea. Sea temperatures here reflect the cool, energetic character of the West Coast. In winter, from June to August, the water generally ranges between 11–14°C, which feels properly cold and is usually only comfortable for surfers or swimmers wearing full wetsuits. Through spring, temperatures gradually lift 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 fine spells. Early autumn can still see 15–17°C before cooling again as winter approaches.

Monthly Water Temperature Range (Min, Max & Average)

Month Min Avg Max
January15°C18°C21°C
February15°C19°C21°C
March15°C18°C21°C
April14°C16°C20°C
May13°C15°C18°C
June12°C14°C16°C
July11°C13°C15°C
August11°C13°C14°C
September11°C13°C14°C
October11°C14°C16°C
November12°C15°C18°C
December14°C16°C20°C

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

Rapahoe: Weather Forecast

August 28

10°C / 13°C
light rain
humidity: 81% | wind: 18 kmh

August 29

9°C / 11°C
broken clouds: 51-84%
humidity: 81% | wind: 11 kmh

August 30

9°C / 12°C
few clouds: 11-25%
humidity: 75% | wind: 36 kmh

August 31

9°C / 11°C
light rain
humidity: 77% | wind: 29 kmh

Local Water Conditions and Nearby Spots

Swimming Conditions

Swimming is allowed along the Rapahoe coastline, but conditions can be variable and at times challenging. The beach is a mix of stones and sand, and the open Tasman Sea regularly produces swells and shifting currents. Rip currents can form depending on wind and tide, and the sea state may change quickly after weather systems move through. There are generally no regular lifeguard patrols, so swimmers need to assess conditions carefully before entering. On calm summer days, short swims can be refreshing for confident and experienced swimmers. Outside the warmer months, cooler water temperatures and more energetic seas make thermal gear advisable. Rapahoe offers striking coastal scenery, but the ocean environment should always be approached with caution.

🏄‍♀️ Nearby Surf Spots and Water Temperatures

Rapahoe/Chimney Pots

⭐ 3/5
12.2°C

Point Elizabeth

⭐ 3/5
13.6°C

Spooky's

⭐ 4/5
13.1°C

Nine Mile

⭐ 5/5
11.9°C
4 km away 📍 Beach and reef

Cobden Beach - The Channel

⭐ 4/5
13.5°C

Cobden Breakwater

⭐ 4/5
13.1°C
8 km away 📍 Breakwater

Wavetraps

⭐ 3/5
12.8°C

Blaketown Wedge

⭐ 5/5
13.5°C

Punakaiki

⭐ 5/5
13.7°C

Location, Type and Nearby Places

Place Tags:Surf SpotCoastal Town

Water Temperature in Nearby Places

Frequently Asked Questions

What is the sea water temperature in Rapahoe today?
Sea water temperature in Rapahoe in the Tasman Sea today is 13°C.
What is the water temperature in Rapahoe during summer?
During summer, the water temperature in Rapahoe typically ranges from 14°C to 21°C.
What is the water temperature in Rapahoe during autumn?
During autumn, the water temperature in Rapahoe typically ranges from 13°C to 21°C.
What is the water temperature in Rapahoe during spring?
During spring, the water temperature in Rapahoe typically ranges from 11°C to 18°C.
What is the water temperature in Rapahoe during winter?
During winter, the water temperature in Rapahoe typically ranges from 11°C to 16°C.
Which beaches are popular in the Rapahoe area?
Some of the most popular beaches in the Rapahoe area include: .
What are the nearest surf spots to Rapahoe?
Some of the closest surf spots near Rapahoe include: Rapahoe/Chimney Pots, Point Elizabeth, Spooky's, Nine Mile, Cobden Breakwater.