
Surf Forecasts:
Blacks Reef surf forecast from 24 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 9AM (local time) - 6ft (1.8m), 13s period, SE swell with glassy winds.
- Most powerful swell: Monday 27 Jul, 6PM (local time) - 10ft (3.0m), 12s period, SSE swell with 2,621 kJ wave energy.
- Next surfable swell (1★+): Saturday 25 Jul, 9AM (local time) - 2.5ft (0.8m), 11s period with E 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 Saturday (Jul 25) at 9AM. The primary swell is predicted to be 0.8m and 11s period. 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 3.0m 12s and forecast to arrive on Monday (Jul 27) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Wednesday (Jul 29) at 6PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Sat 25th Jul) | 2.5ft (0.8m) 11s |
| Best Surf | 9AM (Wed 29th Jul) | 6ft (1.8m) 13s |
| Most Powerful | 6PM (Mon 27th Jul) | 10ft (3.0m) 12s |
Table - best surf conditions forecast for Blacks Reef over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at the surf coming up for Blacks Reef.
The first week or so is a bit of a write-off, to be honest. We’ve got some solid swell rolling in, but the wind is just hammering it. From Saturday the 25th right through to the end of July, it’s mostly onshore, choppy, and messy. The swell’s there, but it’s not gonna be a pretty sight. You’ll see moderate to strong combined wave energy (between 329 and 1994), but it’s all blown out. Not worth paddling out for.
The first real glimmer of hope comes on Wednesday the 29th of July. Now we’re talking. The wind goes glassy in the morning from the NW, and the water goes flat calm. Swell is a clean 6 ft from the SE with a nice long period of 13 seconds – that’s proper groundswell, and it’s got some punch with a combined energy of 1099. That’s a moderate to strong energy level, and on a reef break like this, it’s going to set up some nice, lined-up waves. Ideal for the experienced surfer, as it’s on the bigger side. The water temp is about average for the time of year, nothing weird there.
The afternoon of the 29th stays clean with a cross-off breeze and 6 ft surf, still good. Thursday the 30th morning is also clean with 5 ft swell from the ESE. That’s your best window: Wednesday morning and Thursday morning. This spot is very consistent, so you can rely on it. The swell direction is from the ESE, but the optimum is from the South – it’s a bit of an angle, but on a longer period swell like that, it’ll still wrap in nicely.
After that, it gets quiet again. Friday the 31st has small 3 ft waves with an offshore wind in the afternoon, but it’s weak. Then from the 1st of August, the wind turns back onshore or cross-shore, and the swell’s all over the place. Not worth it.
The second week is a mixed bag of onshore winds and building swell. There’s a big spike on the 8th of August with a massive 12 ft southerly swell, but the file says it’s too big for this break. The energy is very strong (3939), but with an onshore wind and that size, it’s a washing machine. Only for the kamikaze crew. The 9th of August has a drop to 6 ft from the S with a light cross-on wind, but it’s only marginal.
So, to sum it up: the standout is Wednesday the 29th of July morning. Glassy conditions, 6 ft SE groundswell, and a long 13-second period. That’s your best chance for a clean, lined-up reef session. The 30th morning is also a good second option. The rest of the window is mostly blown out or too big. Crowds are often here, so don’t expect to have it to yourself, but for that Wednesday morning, it’s worth the paddle.
Rusty.
Short Range ForecastModerate rain (total 15mm), heaviest on Sat afternoon. Very mild (max 14°C on Fri night, min 8°C on Sun night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Very mild (max 13°C on Thu afternoon, min 7°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | ||||||||||||||
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) | E 11 | E 11 | E 11 | SE 16 | SSW 8 | S 8 | S 8 | S 9 | S 9 | SE 12 | SE 12 | SE 13 | SE 13 | SE 13 | ESE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 11 |
Wave Graph | |||||||||||||||||||
82 | 163 | 202 | 255 | 553 | 746 | 647 | 1057 | 1148 | 2508 | 1902 | 1952 | 1541 | 1060 | 835 | 746 | 518 | 329 | 251 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | on | cross-on | cross-on | on | on | on | on | on | on | on | on | glassy | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 2:03AM1.55m | 2:36PM1.59m | 2:51AM1.51m | 3:22PM1.58m | 3:37AM1.48m | 4:08PM1.56m | 4:23AM1.45m | 4:53PM1.55m | 5:09AM1.43m | 5:37PM1.55m | 5:56AM1.42m | 6:22PM1.55m | |||||||
Low Tide | 8:15AM0.47m | 8:50PM0.50m | 9:04AM0.48m | 9:37PM0.50m | 9:53AM0.48m | 10:23PM0.49m | 10:40AM0.45m | 11:08PM0.46m | 11:24AM0.41m | 11:53PM0.41m | 12:05PM0.37m | 00:38AM0.36m | |||||||
— | 7:18 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | 7:13 | — | — | 7:13 | — | — | |
— | — | 5:12 | — | — | 5:13 | — | — | 5:14 | — | — | 5:15 | — | — | 5:15 | — | — | 5:15 | — | |
mm | — | — | 4 | 6 | 2 | 1 | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 12 | 11 | 10 | 9 | 10 | 9 | 8 | 9 | 9 | 10 | 9 | 10 | 11 | 12 | 9 | 12 | 13 | 13 |
Feels °C | 11 | 10 | 6 | 2 | 3 | 2 | 2 | 0 | 2 | 3 | 4 | 5 | 7 | 8 | 8 | 5 | 7 | 8 | 9 |
Swell 1 Height (m) Direction Period (s) | E 11 | E 11 | E 11 | ESE 11 | ESE 14 | ESE 14 | ESE 13 | SE 13 | SE 13 | SE 12 | SE 12 | SE 13 | SE 13 | SE 13 | ESE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 11 |
82 | 163 | 202 | 158 | 553 | 486 | 458 | 658 | 816 | 2508 | 1902 | 1952 | 1541 | 1060 | 835 | 746 | 518 | 329 | 251 | |
Swell 2 Height (m) Direction Period (s) | S 9 | NE 6 | SE 17 | SE 16 | S 16 | SSW 15 | SSW 14 | — | SW 11 | S 14 | SSW 12 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 16 | SSW 13 | SSW 15 | SSW 13 |
14 | 19 | 106 | 245 | 20 | 43 | 37 | — | 30 | 15 | 48 | 40 | 37 | 33 | 19 | 49 | 34 | 45 | 17 | |
Swell 3 Height (m) Direction Period (s) | SE 11 | ESE 18 | SE 13 | SSW 16 | SSW 16 | E 13 | SSW 15 | — | — | — | — | — | — | S 18 | S 16 | SSW 15 | S 16 | SSW 12 | — |
5 | 32 | 7 | 53 | 50 | 55 | 42 | — | — | — | — | — | — | 6 | 5 | 45 | 20 | 14 | — | |
Wind waves Height (m) Direction Period (s) | NE 5 | NNW 3 | SW 3 | SSW 6 | SSW 8 | S 8 | S 8 | S 9 | S 9 | SSW 8 | — | — | — | — | ENE 3 | NNW 3 | NNW 3 | NNW 3 | NNE 6 |
33 | 8 | 14 | 255 | 528 | 746 | 647 | 1057 | 1148 | 142 | — | — | — | — | 3 | 1 | 3 | 1 | 17 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 3 | 0 | 89 | 89 | 79 | 114 | 44 | 89 | 109 | 79 | 41 | 9 | 6 | 0 | 0 | 0 | 0 | 3 | 0 |
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.










