Surf Forecasts:
Blacks Reef surf forecast from 10 Aug 2026:
- Best quality surf: Saturday 15 Aug, 3PM (local time) - 8ft (2.4m), 8s period, E swell with cross-offshore winds.
- Most powerful swell: Monday 17 Aug, 9AM (local time) - 15ft (4.5m), 10s period, S swell with 4,114 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 9PM (local time) - 2.5ft (0.8m), 10s period with SSE swell.
Best Forecast Surf Conditions for Blacks Reef this week:
The surf forecast for Blacks Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 10) at 9PM. The primary swell is predicted to be 0.8m and 10s period with a secondary swell of 0.4m and 13s. Another secondary swell of 0.6m and 4s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Blacks Reef in the next 16 days are 4.5m 10s and forecast to arrive on Monday (Aug 17) 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 2.0m 7s period and expected on Friday (Aug 14) at 9AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Mon 10th Aug) | 2.5ft (0.8m) 10s |
| Best Surf | 3PM (Sat 15th Aug) | 8ft (2.4m) 8s |
| Most Powerful | 9AM (Mon 17th Aug) | 15ft (4.5m) 10s |
Table - best surf conditions forecast for Blacks Reef over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 15°C on Mon morning, min 8°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 29mm), heaviest during Fri night. Very mild (max 15°C on Thu afternoon, min 11°C on Thu morning). Winds decreasing (fresh winds from the E on Fri night, light winds from the SSW by Sat night). | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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 10 | SSE 10 | SSE 12 | SSW 9 | SSW 8 | S 9 | SSE 8 | SE 8 | SE 10 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | ESE 8 | E 8 | E 8 | ESE 9 | ESE 9 | ESE 9 | ESE 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 173 | 131 | 131 | 559 | 404 | 287 | 209 | 84 | 303 | 211 | 155 | 82 | 53 | 40 | 183 | 639 | 800 | 975 | 969 | 688 | 603 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | cross-on | on | cross-off | off | cross-off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | on | on | on | on |
High Tide | 2:59PM1.81m | 3:29AM1.69m | 3:57PM1.84m | 4:28AM1.70m | 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 | ||||||||
Low Tide | 9:21PM0.19m | 9:43AM0.16m | 10:20PM0.15m | 10:43AM0.10m | 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 | ||||||||
 |  |  | | |  |  | | | | |  | |  |  | | |  |  | | | |
 | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — |
 | — | 5:25 | — | — | 5:27 | — | — | 5:28 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 18 | 2 | 2 | 6 | 8 | 4 | 9 |
Temp °C | 15 | 15 | 13 | 11 | 11 | 10 | 12 | 13 | 10 | 14 | 15 | 13 | 14 | 13 | 14 | 14 | 14 | 13 | 12 | 12 | 11 |
Feels °C | 12 | 12 | 11 | 7 | 8 | 9 | 8 | 9 | 6 | 11 | 11 | 10 | 9 | 8 | 9 | 10 | 13 | 12 | 8 | 6 | 4 |
Swell 1 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 9 | S 9 | S 8 | S 9 | SSE 8 | SE 8 | SE 10 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | ESE 8 | SE 13 | S 22 | S 18 | ESE 9 | ESE 9 | ESE 10 |
| kJ | 173 | 131 | 88 | 455 | 317 | 287 | 209 | 84 | 303 | 211 | 155 | 82 | 53 | 40 | 183 | 7 | 89 | 173 | 969 | 688 | 603 |
Swell 2 Height (m) Direction Period (s) | NE 5 | NE 6 | SSE 12 | SSE 12 | SSE 11 | NE 6 | NE 10 | S 8 | S 10 | S 10 | ESE 13 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | S 17 | SE 13 | — | S 18 | S 16 | S 20 |
| kJ | 4 | 5 | 131 | 193 | 214 | 2 | 4 | 57 | 52 | 28 | 17 | 18 | 20 | 20 | 18 | 22 | 7 | — | 230 | 195 | 8 |
Swell 3 Height (m) Direction Period (s) | S 17 | S 16 | NE 6 | S 16 | S 17 | S 19 | S 18 | S 11 | E 10 | S 19 | S 18 | S 16 | S 16 | SSE 9 | S 15 | S 24 | ESE 13 | — | — | — | S 20 |
| kJ | 5 | 5 | 6 | 21 | 53 | 7 | 6 | 61 | 2 | 7 | 6 | 21 | 21 | 8 | 17 | 11 | 18 | — | — | — | 30 |
Wind waves Height (m) Direction Period (s) | WNW 3 | — | SSW 4 | SSW 9 | SSW 8 | — | NNE 8 | ENE 4 | NE 5 | NE 4 | NE 5 | NE 6 | ENE 7 | ENE 7 | ENE 7 | E 8 | E 8 | ESE 9 | — | SSW 5 | S 6 |
| kJ | 1 | — | 11 | 559 | 404 | — | 7 | 35 | 21 | 20 | 61 | 143 | 353 | 301 | 177 | 639 | 800 | 975 | — | 40 | 199 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 6 | 3 | 9 | 3 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 127 | 127 | 127 | 0 | 3 | 41 | 114 | 157 |
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 Blacks 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 Blacks Reef Surf forecast
The above surf forecast table for Blacks Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Blacks Reef can be found by selecting the local surf guide option on the grey menu. Our Blacks 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 (Blacks 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 Blacks 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.
Blacks Reef is 50 km (31 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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