
Surf Forecasts:
Blacks Reef surf forecast from 27 Jul 2026:
- Best quality surf: Saturday 1 Aug, 12PM (local time) - 11ft (3.5m), 11s period, S swell with cross-onshore winds.
- Most powerful swell: Monday 3 Aug, 12AM (local time) - 15ft (4.5m), 14s period, S swell with 8,282 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 4.5m 14s and forecast to arrive on Monday (Aug 03) at 12AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Friday (Jul 31) at 9AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Wed 29th Jul) | 6ft (1.9m) 13s |
| Best Surf | 12PM (Sat 1st Aug) | 11ft (3.5m) 11s |
| Most Powerful | 12AM (Mon 3rd Aug) | 15ft (4.5m) 14s |
Table - best surf conditions forecast for Blacks Reef over the next 16 days.
The Lowdown
Alright, let’s get into it. The swell window is mostly shut for the next few days, but we’ve got a solid run of surf coming up. Let’s break it down.
The first real chance to get wet is Wednesday morning, 29 July. The water is sitting at 54°, which is a bit colder than normal for this time of year – you’ll want a good hood and booties. The swell is a clean 6ft from the SE with a 13-second period, so there’s proper groundswell energy. The wind is light and cross-offshore from the NW, making for clean conditions. The combined energy is 1133 (moderate). This is a solid day for experienced surfers. The reef setup at Blacks Reef will handle that SE groundswell nicely, but with that period, it’s best suited for the reef or point – the beach breaks might get a bit straight. Crowds are often here, so expect company.
Wednesday afternoon holds similar – 6ft SE, 12-second period, cross-offshore wind from the ENE. Clean, with 1017 energy. Still good, still for experienced surfers.
Thursday morning, 30 July, the swell drops to 5ft from the ESE, 12 seconds, with a clean cross-off from the NNW. Energy drops to 690 (moderate). Still good, but smaller – a good day for a longboard or a fish if you’re looking for something a bit more relaxed.
The next standout is a bit further out. Sunday morning, 9 August is a big one. We’ve got a 12ft swell from the S, with a very long 17-second period. The combined energy is 6177 (very strong). Wind is offshore from the NNE, so it’ll be clean. However, this is a serious amount of water – the guidance says it’s too big for this break. That’s one for experts only, and even then, it’s a massive, powerful groundswell. The reef will handle it, but the paddle out will be a mission.
Sunday afternoon is a better bet for most – 8ft from the S, 15-second period, still offshore from the NE. Energy is 2906 (strong). This is a classic, powerful, clean afternoon. For experienced surfers, this is the pick of the week.
After that, the swell drops off through the next week. Monday 10 August morning has 5ft from the S, 13 seconds, offshore from the NNE. Energy is 801 (moderate). Clean, but smaller. Tuesday 11 August morning has 4ft from the S, 11 seconds, offshore from the N. Energy is 365 (weak). Clean, but marginal.
There’s a gap of poor conditions from Thursday 31 July through Wednesday 5 August, where the wind is onshore or cross-onshore and the swell is either too big or too messy. That’s a solid 6-day stretch of no recommendations.
So, the best bets are Wednesday 29 July for a clean, solid groundswell session, and Sunday 9 August afternoon for a powerful, clean, expert-level swell. The big Sunday morning is a monster – only for the brave.
Rusty.
Short Range ForecastSome drizzle, heaviest during Tue morning. Very mild (max 13°C on Wed afternoon, min 6°C on Mon morning). Winds decreasing (fresh winds from the SW on Mon morning, calm by Wed morning). | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Fri morning. Very mild (max 16°C on Thu afternoon, min 8°C on Sat afternoon). Mainly strong winds. | ||||||||||||||||||||
Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | |||||||||||||||
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) | ESE 13 | S 8 | SE 13 | SE 13 | SE 13 | SE 13 | SE 13 | SE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 12 | ESE 11 | SW 5 | SSW 10 | S 12 | SSW 12 | S 12 | S 11 | S 14 |
Wave Graph | |||||||||||||||||||||
630 | 885 | 816 | 2046 | 1847 | 1417 | 1094 | 993 | 802 | 509 | 379 | 291 | 256 | 193 | 133 | 1773 | 4734 | 3904 | 2555 | 4776 | 8282 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | on | on | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross | cross | cross | on | 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 | 9:53AM0.48m | 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 | |||||||
7:16 | — | — | 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 | — | — | — | 1 | — | — | — | — | — | — | — | — | 2 | — | — | — | 3 | 4 | 3 | 4 | 6 |
Temp °C | 9 | 10 | 10 | 10 | 11 | 10 | 12 | 13 | 10 | 14 | 16 | 12 | 15 | 14 | 12 | 11 | 9 | 9 | 9 | 8 | 9 |
Feels °C | 1 | 3 | 4 | 6 | 7 | 7 | 10 | 9 | 6 | 9 | 12 | 8 | 9 | 8 | 6 | 6 | -1 | 1 | -1 | -4 | -2 |
Swell 1 Height (m) Direction Period (s) | ESE 13 | SE 13 | SE 13 | SE 13 | SE 13 | SE 13 | SE 13 | SE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 12 | ESE 11 | ESE 11 | SE 16 | E 17 | S 12 | S 12 | ENE 15 | ENE 14 |
630 | 689 | 816 | 2046 | 1847 | 1417 | 1094 | 993 | 802 | 509 | 379 | 291 | 256 | 193 | 105 | 121 | 6 | 3064 | 1848 | 21 | 21 | |
Swell 2 Height (m) Direction Period (s) | S 15 | SSW 13 | SSW 13 | SSW 12 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | S 18 | S 16 | S 15 | SSW 14 | NE 6 | NE 8 | SE 15 | ESE 10 | E 11 | E 10 | S 15 | — | — |
17 | 35 | 64 | 27 | 37 | 36 | 33 | 19 | 162 | 181 | 109 | 36 | 42 | 20 | 60 | 35 | 20 | 2 | 110 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SSE 10 | — | S 18 | S 16 | SSW 14 | — | — | S 16 | SSW 13 | SE 15 | SSE 11 | ENE 18 | ENE 17 | E 16 | E 16 | — | — |
— | — | — | — | 38 | — | 6 | 5 | 41 | — | — | 21 | 34 | 37 | 12 | 30 | 29 | 5 | 5 | — | — | |
Wind waves Height (m) Direction Period (s) | S 8 | S 8 | S 8 | SSE 8 | SSE 7 | — | — | — | N 3 | N 3 | NNE 4 | NNE 5 | NNE 6 | WNW 3 | SW 5 | SSW 10 | S 12 | SSW 12 | S 12 | S 11 | S 14 |
421 | 885 | 659 | 426 | 284 | — | — | — | 8 | 3 | 3 | 22 | 82 | 5 | 133 | 1773 | 4734 | 3904 | 2555 | 4776 | 8282 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 41 | 93 | 79 | 9 | 14 | 3 | 0 | 0 | 0 | 3 | 0 | 0 | 3 | 10 | 33 | 3 | 91 | 89 | 157 | 309 | 280 |
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.










