
Surf Forecasts:
Blacks Reef surf forecast from 27 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 9AM (local time) - 6ft (1.9m), 13s period, SE swell with cross-offshore winds.
- Most powerful swell: Sunday 2 Aug, 12AM (local time) - 16ft (5.0m), 13s period, S swell with 8,751 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 9AM (local time) - 6ft (1.9m), 13s period with SE 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 Wednesday (Jul 29) at 9AM. The primary swell is predicted to be 1.9m and 13s period with a secondary swell of 0.4m and 10s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Blacks Reef in the next 16 days are 5.0m 13s and forecast to arrive on Sunday (Aug 02) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Friday (Jul 31) at 3AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Wed 29th Jul) | 6ft (1.9m) 13s |
| Best Surf | 9AM (Wed 29th Jul) | 6ft (1.9m) 13s |
| Most Powerful | 12AM (Sun 2nd Aug) | 16ft (5.0m) 13s |
Table - best surf conditions forecast for Blacks Reef over the next 16 days.
The Lowdown
Alright, let’s get into it. Rusty here.
First thing you gotta know: the only spot in the game for this whole 16-day window is Blacks Reef. It’s a reef break, beginner-friendly, and it’s exposed to the south swell. The water temp is sitting at 54°F, which is a bit colder than usual for this time of year, so you’ll want a decent wetsuit.
Hold up, though. The first few days are a write-off. Monday the 27th and Tuesday the 28th are a total mess – onshore wind, lumpy, poor conditions. Nothing doing. But then, Wednesday the 29th morning is where it starts to get interesting. We’ve got light NNW winds, cross-off shore, and a 6ft south-east swell with a 13-second period. That’s some proper groundswell energy, and the combined energy is sitting at 1133 (moderate). The wind is clean, the waves have shape, and it’s an excellent call for experienced surfers. Wednesday afternoon stays good with a 6ft south-east swell and offshore NE wind at 18 mph. That’s a sweet combo.
Thursday the 30th is still decent in the morning – 5ft east-south-east, 12-second period, clean with cross-off wind. A little smaller, but good. By Friday the 31st, it’s fading fast, and by the weekend it’s blown out again with strong onshore winds and rain. That’s a hard pass.
Now, let’s look ahead. After a rough patch, we get a solid window on Tuesday the 4th of August. Morning shows 8ft south-south-east swell, 12-second period, light north wind cross-off, and the combined energy is 1645 (strong). The afternoon is even cleaner with 7ft swell and offshore NNE wind at 12 mph. That’s top-tier quality for this break. Expert-level conditions, but clean as a whistle.
Wednesday the 5th is smaller but still rideable. After that, things get ugly again with onshore winds and building swell. By Saturday the 8th, the swell is massive – 21ft from the south with a 13-second period. Combined energy is 13977 (very strong). That’s way too big for this break, even for experts. The wind is light cross-shore, but the size is just dangerous. Sunday the 9th is still huge, but the wind is terrible.
Monday the 10th sees the swell drop back to 8ft, with cross-shore wind, but the quality is only marginal. Tuesday the 11th is small and fading.
The standout is hands down Wednesday the 29th morning and Tuesday the 4th of August. Wednesday the 29th gives you that first real clean groundswell with offshore wind, and Tuesday the 4th is the bigger, cleaner option with excellent conditions. Both are clean, well-shaped, and worth the paddle. The 4th is the bigger of the two, but you’ll need to be on your game.
Crowds at Blacks Reef? It’s marked as “often” busy, so expect company, especially on the good days. But the quality will be worth it.
Stay stoked,
Rusty
Short Range ForecastMostly dry. Very mild (max 15°C on Thu morning, min 8°C on Tue night). Winds decreasing (fresh winds from the SW on Mon afternoon, light winds from the W by Tue night). | Days 5-7 Weather SummaryLight rain (total 9mm), mostly falling on Sun morning. Very mild (max 16°C on Thu afternoon, min 6°C on Sun morning). Winds increasing (light winds from the NNW on Thu afternoon, strong winds from the SW by Sun morning). | |||||||||||||||||||
Mon 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | ||||||||||||||
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) | S 8 | SE 13 | SE 13 | SE 13 | SE 13 | SE 13 | SE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | SSW 10 | SSW 13 | S 13 | S 13 | S 13 | S 12 |
Wave Graph | ||||||||||||||||||||
885 | 816 | 2140 | 1847 | 1417 | 1094 | 933 | 769 | 509 | 379 | 297 | 247 | 193 | 109 | 246 | 2508 | 8751 | 5552 | 7678 | 7180 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | on | on | cross-on | on | on | on |
High Tide | 4:08PM1.56m | 4:23AM1.45m | 4:53PM1.55m | 5:09AM1.43m | 5:37PM1.55m | 5:56AM1.42m | 6:22PM1.55m | 6:43AM1.44m | 7:06PM1.57m | 7:30AM1.47m | 7:50PM1.58m | 8:14AM1.51m | 8:34PM1.61m | |||||||
Low Tide | 10:23PM0.49m | 10:40AM0.45m | 11:08PM0.46m | 11:24AM0.41m | 11:53PM0.41m | 12:05PM0.37m | 00:38AM0.36m | 12:47PM0.33m | 1:23AM0.32m | 1:30PM0.31m | 2:07AM0.29m | 2:15PM0.29m | 2:50AM0.27m | |||||||
— | — | 7:15 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — | |
5:14 | — | — | 5:15 | — | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:17 | — | — | 5:19 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | 1 | 4 | 7 | 7 |
Temp °C | 10 | 10 | 10 | 11 | 10 | 13 | 14 | 10 | 15 | 16 | 14 | 14 | 15 | 11 | 10 | 8 | 8 | 7 | 7 | 8 |
Feels °C | 3 | 4 | 6 | 7 | 7 | 10 | 10 | 6 | 11 | 12 | 9 | 9 | 10 | 6 | 4 | 0 | 0 | -3 | -2 | -2 |
Swell 1 Height (m) Direction Period (s) | SE 13 | SE 13 | SE 13 | SE 13 | SE 13 | SE 13 | SE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | SW 7 | ESE 11 | ESE 11 | ENE 16 | NE 16 | NE 15 | NE 14 |
689 | 816 | 2140 | 1847 | 1417 | 1094 | 933 | 769 | 509 | 379 | 297 | 247 | 193 | 67 | 69 | 43 | 25 | 10 | 8 | 8 | |
Swell 2 Height (m) Direction Period (s) | — | SSW 13 | SSW 12 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | S 18 | S 16 | S 15 | SSW 14 | NE 6 | NE 6 | ESE 11 | SE 15 | SE 16 | — | ENE 16 | — | — |
— | 64 | 27 | 37 | 36 | 33 | 20 | 162 | 188 | 110 | 36 | 25 | 5 | 109 | 107 | 62 | — | 25 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | S 18 | S 16 | SSW 14 | — | WNW 3 | S 16 | SSW 14 | SE 15 | SE 15 | E 17 | SE 13 | — | — | — | — |
— | — | — | — | — | 6 | 5 | 41 | — | 1 | 21 | 38 | 36 | 36 | 6 | 42 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | S 8 | S 8 | SSW 7 | S 8 | — | — | — | N 3 | NNW 3 | NNE 4 | NNE 4 | NW 3 | WNW 4 | WNW 4 | SSW 10 | SSW 13 | S 13 | S 13 | S 13 | S 12 |
885 | 736 | 96 | 259 | — | — | — | 3 | 3 | 1 | 17 | 6 | 14 | 11 | 246 | 2508 | 8751 | 5552 | 7678 | 7180 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 91 | 79 | 9 | 14 | 3 | 0 | 0 | 0 | 3 | 0 | 3 | 33 | 3 | 33 | 33 | 91 | 75 | 168 | 309 | 169 |
Best forecast wave conditions in Gisborne and Mahia | ||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










