
Surf Forecasts:
Blacks Reef surf forecast from 28 Jul 2026:
- Best quality surf: Wednesday 5 Aug, 12AM (local time) - 16ft (5.0m), 15s period, S swell with onshore winds.
- Most powerful swell: Tuesday 4 Aug, 6PM (local time) - 16ft (5.0m), 15s period, S swell with 10,469 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 9AM (local time) - 6ft (1.8m), 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 1.8m and 13s period with a secondary swell of 0.4m and 10s. 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 5.0m 15s and forecast to arrive on Tuesday (Aug 04) 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 0.9m 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 (1.8m) 13s |
| Best Surf | 12AM (Wed 5th Aug) | 16ft (5.0m) 15s |
| Most Powerful | 6PM (Tue 4th Aug) | 16ft (5.0m) 15s |
Table - best surf conditions forecast for Blacks Reef over the next 16 days.
The Lowdown
G'day, Rusty here. We've got Blacks Reef as the only spot on the radar for this 16-day run, and it's a bit of a mixed bag. For a reef break that's normally very consistent, we're looking at a solid window of action, but the timing is everything.
The action kicks off this Wednesday, the 29th of July, with a proper pulse. The morning is the standout – a clean 6ft swell out of the southeast with a long 13-second period delivering some serious push. The combined energy reading is 1043 (moderate wave energy), and with a glassy NNW breeze, you're looking at perfect, smooth lines. This is the best of the bunch, and for a beginner-friendly reef, it's a treat. The water temp is about average for this time of year.
The swell holds through Thursday the 30th, but the wind shifts. The morning sees a 5ft ESE swell with a 12-second period, and though the cross-off wind keeps it clean, it's not the same magic as the Wednesday dawn. The energy drops to 692 (moderate wave energy). Friday the 31st sees it fade with a 3ft swell and messy cross-shore winds, so it's a write-off.
The first weekend is a no-go. Saturday the 1st and Sunday the 2nd of August get hammered by a rising south swell that gets too big and too windy. The swell is 8ft to 12ft, but with onshore winds hitting 28 mph, it's a complete mess. The energy rockets up to 2809 (strong wave energy), but it's for the wrong reasons – this is a kitesurfing special, not a paddle session.
The start of the new week brings a cleanup. Monday the 3rd of August afternoon is a sneaky good one – the swell drops to 5ft out of the SSE with a 10-second period, and the wind goes glassy. The energy is 479 (moderate wave energy), and the conditions are clean. A solid, small-wave option.
The middle of the week gets wild again. Tuesday the 4th and into Wednesday the 5th of August, the swell pumps up to 12ft to 15ft from the south with a 13 to 14-second period. The energy is massive, hitting 8108 (very strong wave energy), but for Blacks Reef, it's just too big. Winds are onshore or cross-onshore, and the forecast itself says it's too big for this break. This is expert-only territory, and even then, it's a battle.
The first real sign of sustained quality returns on Friday the 7th of August. The morning is a stunner – a 6ft SSE swell with a 12-second period, and the wind is offshore from the north. The energy is 1130 (moderate wave energy), and it's clean. This is a proper session for experienced surfers.
Saturday the 8th of August looks even better for the masses. The swell drops to 4ft out of the SSE with a 12-second period, and it's offshore from the NNE all day. The energy is 558 (moderate wave energy), and it's glassy. This is a classic small, clean reef day that will be user-friendly. The crowds are likely here, so get in early.
Sunday the 9th of August holds with offshore winds, but the swell is down to 3ft from the south. The energy is 371 (moderate wave energy), and it's still clean, but it's getting smaller. From Monday the 10th of August onwards, the swell drops away to 3ft and below. The energy dips into the 50–200 range (weak wave energy), and while the winds stay offshore, the waves are small and weak. The last real surfable day in this run is out to about the 11th of August, and then it's a long, flat stretch.
So, to sum it up: the absolute standout is this Wednesday morning, the 29th of July. The backup is the Friday morning, the 7th of August, and the Saturday the 8th of August. The rest is either blown out, too big, or too small. Don't sleep on the Wednesday glass-off.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Thu afternoon, min 7°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 15mm), heaviest on Sun afternoon. Very mild (max 11°C on Fri night, min 7°C on Sat morning). Winds decreasing (strong winds from the SSW on Sun afternoon, calm by Mon afternoon). | ||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | ||||||||||||||
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) | SE 13 | SE 13 | SE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | SSW 7 | SSW 10 | S 10 | S 11 | S 11 | S 11 | SSE 11 | SSE 10 | S 8 |
Wave Graph | |||||||||||||||||||
1326 | 1003 | 933 | 802 | 509 | 379 | 256 | 190 | 154 | 103 | 581 | 2282 | 3721 | 2804 | 1926 | 1045 | 685 | 443 | 577 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-on | on | on | on | on | on | cross-on | glassy | cross |
High Tide | 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 | 8:57AM1.55m | 9:19PM1.63m | |||||||
Low Tide | 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 | 3:02PM0.29m | |||||||
— | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — | 7:09 | — | — | |
— | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:17 | — | — | 5:19 | — | — | 5:20 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 2 | 2 | 4 | 3 | — | — | — |
Temp °C | 10 | 12 | 14 | 10 | 15 | 16 | 14 | 15 | 15 | 11 | 8 | 8 | 9 | 9 | 9 | 10 | 9 | 10 | 9 |
Feels °C | 7 | 9 | 10 | 6 | 11 | 12 | 10 | 10 | 9 | 5 | 3 | 1 | 0 | 2 | -1 | 4 | 6 | 8 | 3 |
Swell 1 Height (m) Direction Period (s) | SE 13 | SE 13 | SE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | SE 16 | SE 15 | E 16 | E 16 | E 15 | S 11 | SSE 11 | SSE 10 | S 18 |
1326 | 1003 | 933 | 802 | 509 | 379 | 256 | 190 | 154 | 103 | 119 | 149 | 5 | 5 | 4 | 1045 | 685 | 443 | 157 | |
Swell 2 Height (m) Direction Period (s) | SSW 10 | SSW 10 | SSW 10 | S 18 | S 16 | S 15 | SSW 14 | NE 6 | NE 6 | SE 16 | ESE 11 | E 17 | E 10 | ENE 16 | S 19 | E 14 | E 13 | S 20 | E 13 |
36 | 34 | 20 | 162 | 183 | 109 | 36 | 34 | 12 | 61 | 39 | 6 | 8 | 24 | 7 | 4 | 3 | 32 | 3 | |
Swell 3 Height (m) Direction Period (s) | — | S 18 | S 16 | SSW 18 | — | NE 12 | S 16 | SSW 14 | SE 15 | SSW 12 | E 17 | ENE 17 | ENE 16 | — | — | S 19 | S 23 | E 13 | ENE 13 |
— | 6 | 5 | 106 | — | 6 | 21 | 38 | 37 | 27 | 6 | 29 | 25 | — | — | 7 | 10 | 3 | 16 | |
Wind waves Height (m) Direction Period (s) | — | — | — | N 4 | NNW 3 | NNE 4 | NNE 4 | NW 3 | WNW 3 | WNW 4 | SSW 7 | SSW 10 | S 10 | S 11 | S 11 | — | NW 3 | W 2 | S 8 |
— | — | — | 9 | 3 | 9 | 26 | 4 | 4 | 27 | 581 | 2282 | 3721 | 2804 | 1926 | — | 2 | 1 | 577 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 3 | 0 | 0 | 0 | 0 | 0 | 3 | 33 | 33 | 44 | 9 | 91 | 162 | 91 | 91 | 79 | 9 | 0 | 3 |
Best forecast wave conditions in Gisborne and Mahia | |||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.










