Surf Forecasts:
Mahia Reef surf forecast from 12 Aug 2026:
- Best quality surf: Saturday 15 Aug, 9AM (local time) - 6ft (1.8m), 8s period, E swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 9AM (local time) - 15ft (4.5m), 16s period, S swell with 10,524 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 9AM (local time) - 6ft (1.8m), 8s period with E swell.
Best Forecast Surf Conditions for Mahia Reef this week:
The surf forecast for Mahia Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 15) at 9AM. The primary swell is predicted to be 1.8m and 8s period with a secondary swell of 0.2m and 13s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Mahia Reef in the next 16 days are 4.5m 16s and forecast to arrive on Wednesday (Aug 19) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 8s period and expected on Saturday (Aug 15) at 3AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Sat 15th Aug) | 6ft (1.8m) 8s |
| Best Surf | 9AM (Sat 15th Aug) | 6ft (1.8m) 8s |
| Most Powerful | 9AM (Wed 19th Aug) | 15ft (4.5m) 16s |
Table - best surf conditions forecast for Mahia Reef over the next 16 days.
Short Range ForecastHeavy rain (total 48mm), heaviest during Thu night. Very mild (max 15°C on Sat morning, min 10°C on Wed night). Winds decreasing (fresh winds from the NE on Thu night, calm by Sat morning). | Days 5-7 Weather SummaryHeavy rain (total 38mm), heaviest during Sun morning. Very mild (max 14°C on Sat afternoon, min 8°C on Sun night). Winds increasing (calm on Sat afternoon, strong winds from the SSW by Sun morning). | |||||||||||||||||||
Wed 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SE 10 | SE 9 | SE 9 | SE 8 | SE 8 | SE 7 | E 7 | E 7 | E 8 | E 8 | ESE 8 | SSW 7 | S 9 | S 10 | S 10 | S 9 | S 10 | SSW 8 | S 10 | S 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 416 | 242 | 155 | 82 | 29 | 28 | 59 | 320 | 417 | 372 | 114 | 904 | 2678 | 3248 | 2736 | 2423 | 1729 | 820 | 3118 | 3833 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | off | cross-off | cross | cross | cross-off | cross | cross | cross-on | cross | cross | cross |
High Tide | 4:56PM1.86m | 5:26AM1.71m | 5:54PM1.87m | 6:24AM1.72m | 6:49PM1.87m | 7:19AM1.73m | 7:41PM1.84m | 8:11AM1.75m | 8:31PM1.81m | 9:00AM1.76m | 9:21PM1.76m | 9:46AM1.75m | 10:10PM1.71m | |||||||
Low Tide | 11:18PM0.11m | 11:39AM0.06m | 00:16AM0.09m | 12:32PM0.05m | 1:11AM0.09m | 1:24PM0.08m | 2:02AM0.11m | 2:17PM0.13m | 2:51AM0.16m | 3:09PM0.20m | 3:39AM0.22m | 4:01PM0.28m | ||||||||
 |  |  |  |  | | | | | |  |  | | | |  |  | | | | |
 | — | — | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — |
 | 5:27 | — | — | 5:28 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:32 | — |
mm | — | 2 | 4 | 9 | 19 | 1 | 2 | 11 | — | — | 6 | 17 | 3 | 6 | 4 | 1 | — | 1 | 1 | — |
Temp °C | 12 | 11 | 11 | 13 | 13 | 14 | 14 | 13 | 15 | 14 | 13 | 10 | 10 | 9 | 8 | 9 | 10 | 10 | 10 | 10 |
Feels °C | 7 | 6 | 7 | 9 | 8 | 11 | 11 | 9 | 15 | 13 | 13 | 0 | 0 | -1 | -2 | -1 | 0 | -1 | 0 | 1 |
Swell 1 Height (m) Direction Period (s) | SE 10 | SE 9 | SE 9 | SE 8 | SE 8 | ENE 6 | E 7 | SE 13 | E 8 | E 8 | ENE 9 | E 9 | E 9 | ENE 9 | E 9 | — | E 10 | SE 10 | SE 10 | S 18 |
| kJ | 416 | 242 | 155 | 82 | 29 | 140 | 59 | 25 | 417 | 372 | 275 | 199 | 185 | 42 | 123 | — | 30 | 622 | 322 | 1099 |
Swell 2 Height (m) Direction Period (s) | S 11 | S 10 | S 10 | S 9 | SSE 9 | SE 7 | SE 7 | SSE 8 | ESE 13 | S 18 | ESE 8 | ESE 8 | ESE 12 | — | — | — | E 10 | E 9 | — | E 11 |
| kJ | 39 | 52 | 28 | 42 | 26 | 27 | 27 | 7 | 17 | 25 | 114 | 88 | 15 | — | — | — | 98 | 25 | — | 57 |
Swell 3 Height (m) Direction Period (s) | E 10 | ESE 13 | ESE 13 | ESE 13 | ESE 14 | SSE 8 | SSE 9 | S 15 | S 19 | SE 14 | SSW 17 | ESE 12 | ESE 12 | — | — | — | — | — | — | — |
| kJ | 2 | 17 | 17 | 17 | 18 | 28 | 15 | 18 | 27 | 7 | 96 | 15 | 15 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 4 | NE 4 | NE 4 | NE 5 | ENE 6 | NE 7 | NE 6 | E 7 | — | — | — | SSW 7 | S 9 | S 10 | S 10 | S 9 | S 10 | SSW 8 | S 10 | S 10 |
| kJ | 13 | 16 | 34 | 87 | 164 | 248 | 94 | 320 | — | — | — | 904 | 2678 | 3248 | 2736 | 2423 | 1729 | 820 | 3118 | 3833 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 2 | 4 | 2 | 2 | 4 | 4 | 2 | 4 | 0 | 0 | 0 | 144 | 163 | 95 | 95 | 95 | 80 | 95 | 287 | 80 |
Best forecast wave conditions in Gisborne and Mahia | ||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mahia Reef surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Mahia Reef Surf forecast
The above surf forecast table for Mahia Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mahia Reef can be found by selecting the local surf guide option on the grey menu. Our Mahia Reef surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Mahia Reef) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Mahia Reef may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Mahia Reef is 49 km (30 miles) from the city of Gisborne. If you plan a holiday in Gisborne and Mahia, look for hotels and other accommodation in Gisborne. Gisborne has rooms for a wide range of budgets as well as car hire and transport links.
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