Haumoana – current water temperature and swimming conditions

This page shows the current water temperature at Haumoana in Hawke's Bay. 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.

Current Sea Water Temperature

11.8°C

Today

11.8°C

Yesterday

11.8°C

A Week Ago

The average sea water temperature today in Haumoana is about 12°C.

Water Temperature in Haumoana: Daily Trends, Historical Records, and Forecast

❌ This is very cold water, causing an immediate cold shock response for most people. Swimming is not recommended without a wetsuit, and even with protection, time in the water should be limited. These temperatures are typically suited only to trained or well-prepared swimmers.

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

Water temperatures in Haumoanafell over the past month, but have levelled out during the last week.

According to our forecast, Sea water temperature in Haumoana will be 13.3°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
Aug 19	11.9°C	13.5°C
Aug 20	11.8°C	13.5°C
Aug 21	11.8°C	13.5°C
Aug 22	11.8°C	13.5°C
Aug 23	11.6°C	13.8°C
Aug 24	11.6°C	13.3°C
Aug 25	11.9°C	13.5°C
Aug 26	11.8°C	13.3°C
Aug 27	11.8°C	13.3°C	11.8°C
Aug 28		13.5°C	12.0°C
Aug 29		13.8°C	12.2°C
Aug 30		13.8°C	12.5°C
Aug 31		13.5°C	12.7°C
Sep 1		14.0°C	12.9°C
Sep 2		14.0°C	13.1°C
Sep 3		14.3°C	13.3°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 Haumoana 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

Haumoana is a small coastal settlement just south of Napier and Hastings, looking out across Hawke’s Bay to the Pacific Ocean. Water temperatures here are typical of the central east coast of the North Island. In winter, from June to August, the sea generally sits between 13–15°C, which feels pretty cold for most swimmers and usually calls for a wetsuit. As spring progresses, temperatures edge up to around 15–17°C. Summer, from December through March, brings the most comfortable conditions, with water commonly ranging from 19–22°C during settled weather. Early autumn often remains mild, with the sea still around 18–20°C before gradually cooling again.

Monthly Water Temperature Range (Min, Max & Average)

Month	Min	Avg	Max
January	17°C	19°C	22°C
February	17°C	20°C	23°C
March	18°C	20°C	21°C
April	17°C	19°C	21°C
May	15°C	17°C	19°C
June	14°C	16°C	17°C
July	12°C	15°C	16°C
August	12°C	14°C	16°C
September	12°C	14°C	17°C
October	12°C	15°C	18°C
November	14°C	16°C	19°C
December	15°C	18°C	21°C

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

Haumoana: Weather Forecast

August 28

12°C / 17°C

overcast clouds: 85-100%

humidity: 73% | wind: 11 kmh

August 29

10°C / 16°C

moderate rain

humidity: 77% | wind: 11 kmh

August 30

8°C / 16°C

scattered clouds: 25-50%

humidity: 67% | wind: 14 kmh

August 31

7°C / 10°C

few clouds: 11-25%

humidity: 77% | wind: 7 kmh

Local Water Conditions and Nearby Spots

Swimming Conditions

Swimming is allowed at Haumoana Beach, and during calm summer days it can be an enjoyable and refreshing spot for a dip. The coastline here is open and can be affected by ocean swells, and the beach is mainly shingle, so the water deepens relatively quickly. Rips and stronger currents can form depending on wind direction and swell size, so swimmers should take care and assess conditions before heading in. In the warmer months, confident swimmers and families often make the most of the relatively mild water. Outside summer, the cooler temperatures and more changeable seas make swimming better suited to experienced locals or those wearing thermal gear. On a settled Hawke’s Bay day, though, Haumoana offers clear water and classic east coast swimming conditions.