
Surf Forecasts:
Blacks Reef surf forecast from 29 Jul 2026:
- Best quality surf: Wednesday 5 Aug, 6PM (local time) - 10ft (3.0m), 12s period, S swell with glassy winds.
- Most powerful swell: Tuesday 4 Aug, 3PM (local time) - 15ft (4.5m), 14s period, S swell with 7,909 kJ wave energy.
- Next surfable swell (1★+): Thursday 30 Jul, 3AM (local time) - 5ft (1.5m), 12s period with ESE 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 Thursday (Jul 30) at 3AM. The primary swell is predicted to be 1.5m and 12s period with a secondary swell of 0.6m and 17s. 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 4.5m 14s and forecast to arrive on Tuesday (Aug 04) at 3PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Friday (Jul 31) at 6AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Thu 30th Jul) | 5ft (1.5m) 12s |
| Best Surf | 6PM (Wed 5th Aug) | 10ft (3.0m) 12s |
| Most Powerful | 3PM (Tue 4th Aug) | 15ft (4.5m) 14s |
Table - best surf conditions forecast for Blacks Reef over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the cards for Blacks Reef.
Right off the bat, we’ve got a bit of a wait for the good stuff. The first real recommendation kicks off on Wednesday, July 29th, and it’s a solid start. We’re looking at a 6ft swell coming from the SE with a nice long period of 12 seconds, which is proper groundswell. The wind is a light offshore from the NE at 6 mph, keeping it clean. The water is sitting at 55°, which is a bit colder than normal for this time of year. The combined energy is moderate (958). This is a good, clean option for the beginner crew, but with that long period, it might be a bit straight for some spots. Crowds are often around here, so expect company.
Thursday the 30th keeps it going. Morning sees a 5ft swell from the ESE, still a 12-second period, with a cross-offshore breeze from the NNW. The combined energy drops to 692. It’s clean and manageable. The afternoon fades a touch with a 4ft swell and 11-second period, still clean.
Friday the 31st is where it goes south. The wind swings to the WNW and picks up, creating a cross-shore chop. The swell drops to under 3ft, and the energy is weak. This is a write-off. Saturday and Sunday, August 1st and 2nd, are a mess. Strong onshore winds, lumpy conditions, and the swell gets big—10ft to 12ft—but it’s all onshore and ugly. The combined energy jumps to 1387 and then a massive 5684, but it’s unsurfable. Monday the 3rd is still poor with cross-shore winds and a messy 5ft swell.
Now, here’s where it gets interesting for the experienced lads. Tuesday, August 4th, is a standout, but it’s a wild one. The morning is showing an 18ft swell from the S with a very long period of 14 seconds and light cross-shore wind. The combined energy is a massive 12508. The afternoon is 16ft with a 15-second period. The wind is light onshore, but the forecast says the swell is predicted to be too big for this break. This is expert-only territory, and it’s a long-range call, so keep an eye on it. This is only for the heavily experienced, and even then, it’s a gnar.
Wednesday the 5th is still on the big side with 10ft, but the wind is onshore again, making it marginal. The real standout for clean, big-wave surfing comes on Thursday, August 6th. Morning has a 7ft SSE swell with a 12-second period and a light offshore from the NNE at 9 mph. The afternoon is even better: 8ft from the SSE with a 14-second period and a light offshore NE breeze at 6 mph. The combined energy is strong (1720 and 2285), the wind is clean, and it’s described as excellent for experienced surfers. This is the pick of the second week.
After that, it drops off again. Friday the 7th gets messy with cross-on wind and a 8ft swell. Saturday the 8th and Sunday the 9th are onshore and choppy. The rest of the run from the 10th through the 13th is a dry spell—small, weak, and onshore, with combined energy dropping to as low as 15. There’s a blip on the afternoon of the 13th with a 7ft easterly swell, but it’s cross-on and marginal.
So, for the best on offer: Wednesday the 29th is your clean, beginner-friendly start. But the real highlight is Thursday, August 6th—clean, strong, offshore, and juicy for the experienced crew. Tuesday the 4th is a monster, but only for the fully committed.
Rusty, signing off.
Short Range ForecastLight rain (total 3mm), mostly falling on Sat morning. Very mild (max 16°C on Thu afternoon, min 8°C on Fri night). Winds increasing (light winds from the N on Thu morning, fresh winds from the SSW by Sat afternoon). | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Tue morning. Very mild (max 14°C on Mon afternoon, min 6°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | ||||||||||||||
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) | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | SSW 9 | S 10 | S 12 | S 12 | S 11 | S 11 | S 10 | S 12 | S 12 | S 16 | S 14 | S 13 |
Wave Graph | |||||||||||||||||||
722 | 509 | 379 | 302 | 193 | 154 | 103 | 1368 | 2599 | 3705 | 2299 | 1413 | 934 | 520 | 480 | 636 | 5096 | 7909 | 4364 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | on | on | cross-on | cross-on | on | cross-off | cross-off | cross-on | cross | on | on | on |
High Tide | 5:56AM1.42m | 6:22PM1.55m | 6:43AM1.44m | 7:06PM1.57m | 7:30AM1.47m | 7:50PM1.58m | 8:14AM1.51m | 8:34PM1.61m | 8:57AM1.55m | 9:19PM1.63m | 9:39AM1.59m | 10:04PM1.65m | |||||||
Low Tide | 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 | 3:02PM0.29m | 3:34AM0.27m | 3:49PM0.29m | |||||||
— | 7:13 | — | — | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — | 7:09 | — | — | 7:09 | — | — | |
— | — | 5:15 | — | — | 5:16 | — | — | 5:17 | — | — | 5:19 | — | — | 5:20 | — | — | 5:21 | — | |
mm | — | — | — | — | — | — | — | 2 | 1 | 1 | — | — | — | — | — | — | 2 | 2 | — |
Temp °C | 10 | 15 | 16 | 14 | 14 | 15 | 11 | 8 | 9 | 9 | 9 | 11 | 8 | 13 | 14 | 11 | 10 | 9 | 9 |
Feels °C | 6 | 11 | 12 | 10 | 9 | 10 | 5 | 0 | 0 | 2 | 3 | 5 | 6 | 10 | 10 | 7 | 6 | 4 | 1 |
Swell 1 Height (m) Direction Period (s) | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | SE 16 | ESE 10 | E 16 | S 12 | S 11 | S 11 | S 10 | S 12 | S 12 | ENE 12 | ENE 12 | S 13 |
722 | 509 | 379 | 302 | 193 | 154 | 103 | 193 | 21 | 5 | 2299 | 1413 | 934 | 520 | 480 | 636 | 15 | 14 | 4364 | |
Swell 2 Height (m) Direction Period (s) | S 18 | S 16 | S 15 | SSW 14 | NE 6 | NE 6 | SE 15 | E 17 | E 17 | E 10 | E 16 | E 15 | E 14 | S 21 | SSE 10 | S 17 | — | — | NE 12 |
162 | 183 | 109 | 36 | 35 | 8 | 60 | 6 | 6 | 8 | 5 | 4 | 4 | 34 | 114 | 95 | — | — | 6 | |
Swell 3 Height (m) Direction Period (s) | SSW 18 | W 3 | NE 4 | S 16 | SSW 15 | SE 15 | SSE 11 | ENE 18 | ENE 17 | ENE 16 | — | ENE 15 | S 19 | E 13 | S 19 | S 21 | — | — | — |
106 | 1 | 4 | 21 | 47 | 37 | 12 | 30 | 29 | 25 | — | 21 | 7 | 3 | 66 | 78 | — | — | — | |
Wind waves Height (m) Direction Period (s) | NNW 2 | N 3 | NNE 4 | NNE 5 | NW 3 | WNW 3 | W 4 | SSW 9 | S 10 | S 12 | — | — | — | NW 3 | W 3 | SW 6 | S 16 | S 14 | — |
1 | 3 | 10 | 19 | 2 | 3 | 23 | 1368 | 2599 | 3705 | — | — | — | 3 | 2 | 75 | 5096 | 7909 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 3 | 33 | 33 | 10 | 62 | 114 | 75 | 75 | 89 | 0 | 0 | 9 | 3 | 33 | 89 | 75 |
Best forecast wave conditions in Gisborne and Mahia | |||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||
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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.










