Surf Forecasts:
Mahia Reef surf forecast from 15 Sep 2026:
- Best quality surf: Monday 21 Sep, 12PM (local time) - 13ft (4.0m), 12s period, SSW swell with cross-offshore winds.
- Most powerful swell: Monday 21 Sep, 6AM (local time) - 13ft (4.0m), 12s period, S swell with 4,804 kJ wave energy.
- Next surfable swell (1★+): Wednesday 16 Sep, 12PM (local time) - 3ft (0.9m), 9s period with SSE 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 Wednesday (Sep 16) at 12PM. The primary swell is predicted to be 0.9m and 9s period with a secondary swell of 0.4m and 12s. Another secondary swell of 0.2m and 3s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Mahia Reef in the next 16 days are 4.0m 12s and forecast to arrive on Monday (Sep 21) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Saturday (Sep 19) at 3AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Wed 16th Sep) | 3ft (0.9m) 9s |
| Best Surf | 12PM (Mon 21st Sep) | 13ft (4.0m) 12s |
| Most Powerful | 6AM (Mon 21st Sep) | 13ft (4.0m) 12s |
Table - best surf conditions forecast for Mahia Reef over the next 16 days.
Short Range ForecastHeavy rain (total 23mm), heaviest during Fri night. Very mild (max 17°C on Thu morning, min 9°C on Fri night). Winds increasing (light winds from the WSW on Wed morning, fresh winds from the S by Fri afternoon). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sun morning. Very mild (max 15°C on Sat afternoon, min 7°C on Sun night). Winds decreasing (strong winds from the SSW on Sun morning, light winds from the WNW by Mon morning). | ||||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||
AM | 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) | SSE 9 | SSE 9 | SE 12 | SE 10 | SE 9 | SE 11 | SE 12 | SE 12 | SE 12 | SSW 7 | S 7 | SSW 14 | SW 12 | SSW 8 | S 11 | S 12 | S 11 | S 10 | S 9 | S 8 | SE 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 124 | 99 | 224 | 138 | 122 | 110 | 281 | 224 | 193 | 514 | 226 | 210 | 216 | 1580 | 3725 | 4179 | 2008 | 637 | 173 | 112 | 49 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | on | cross-on | cross-on | cross-on | cross-off | cross-off | cross | cross-on | cross-on | on | cross-on | cross | cross-on | on | cross-off | on | cross-on | cross-off | cross-on |
High Tide | 9:14AM1.76m | 9:39PM1.68m | 9:58AM1.72m | 10:25PM1.64m | 10:45AM1.66m | 11:11PM1.59m | 11:34AM1.60m | 11:55PM1.52m | 12:25PM1.54m | 00:41AM1.44m | 1:14PM1.49m | 1:29AM1.38m | 2:00PM1.46m | 2:18AM1.35m | |||||||
Low Tide | 3:31PM0.34m | 3:51AM0.39m | 4:19PM0.39m | 4:38AM0.42m | 5:05PM0.42m | 5:24AM0.45m | 5:53PM0.44m | 6:09AM0.46m | 6:41PM0.45m | 6:53AM0.45m | 7:29PM0.44m | 7:39AM0.44m | 8:15PM0.41m | ||||||||
 | |  | |  |  |  |  |  |  | |  |  | | | | | | | | | |
 | 6:07 | — | — | 6:05 | — | — | 6:05 | — | — | 6:03 | — | — | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — |
 | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:02 | — | — | 6:04 | — |
mm | — | — | — | — | — | — | 3 | 12 | 8 | — | — | — | 1 | 1 | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 13 | 17 | 17 | 15 | 12 | 11 | 11 | 13 | 15 | 15 | 14 | 10 | 9 | 12 | 13 | 13 | 16 | 19 | 18 |
Feels °C | 12 | 11 | 11 | 13 | 13 | 11 | 8 | 5 | 5 | 10 | 12 | 11 | 6 | 2 | 1 | 8 | 7 | 9 | 13 | 17 | 14 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | SSE 9 | SE 12 | SE 10 | SE 9 | SE 11 | SE 12 | SE 12 | ENE 7 | SE 12 | S 6 | SSE 6 | SE 11 | ESE 10 | SE 10 | ESE 10 | S 11 | S 10 | S 9 | S 8 | S 8 |
| kJ | 124 | 99 | 224 | 138 | 122 | 110 | 281 | 224 | 117 | 190 | 162 | 37 | 75 | 60 | 27 | 20 | 2008 | 637 | 173 | 112 | 49 |
Swell 2 Height (m) Direction Period (s) | SSW 9 | SE 12 | SSW 8 | S 8 | SSW 15 | SE 14 | NE 7 | S 16 | SE 12 | ENE 8 | SE 11 | SSW 14 | ENE 8 | ENE 10 | S 20 | — | SE 10 | SE 10 | SE 7 | SE 9 | SE 6 |
| kJ | 17 | 53 | 14 | 5 | 23 | 97 | 28 | 47 | 193 | 32 | 121 | 210 | 20 | 38 | 31 | — | 25 | 15 | 38 | 21 | 15 |
Swell 3 Height (m) Direction Period (s) | SE 12 | SSW 9 | SSW 13 | S 14 | S 8 | SSW 13 | SSW 15 | SSW 10 | SSW 16 | ENE 10 | E 8 | SE 11 | SE 6 | — | — | — | — | SE 13 | SE 13 | SSW 12 | SE 12 |
| kJ | 25 | 25 | 17 | 16 | 5 | 17 | 21 | 18 | 85 | 10 | 32 | 119 | 9 | — | — | — | — | 7 | 26 | 28 | 49 |
Wind waves Height (m) Direction Period (s) | WNW 2 | — | — | NW 3 | NNE 4 | NE 6 | NE 7 | NE 6 | S 5 | SSW 7 | S 7 | NW 2 | SW 12 | SSW 8 | S 11 | S 12 | — | — | NW 2 | — | SSW 2 |
| kJ | 1 | — | — | 2 | 2 | 41 | 63 | 38 | 119 | 514 | 226 | 1 | 216 | 1580 | 3725 | 4179 | — | — | 1 | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 0 | 4 | 2 | 4 | 4 | 81 | 81 | 50 | 4 | 4 | 10 | 42 | 68 | 80 | 2 | 2 | 4 | 2 | 2 | 4 |
Best forecast wave conditions in Gisborne and Mahia | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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