
Surf Forecasts:
Blacks Reef surf forecast from 30 Jul 2026:
- Best quality surf: Sunday 2 Aug, 6PM (local time) - 7ft (2.2m), 11s period, S swell with glassy winds.
- Most powerful swell: Saturday 1 Aug, 9PM (local time) - 11ft (3.5m), 12s period, S swell with 4,176 kJ wave energy.
- Next surfable swell (1★+): Friday 31 Jul, 6AM (local time) - 3.5ft (1.0m), 11s 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 Friday (Jul 31) at 6AM. The primary swell is predicted to be 1.0m and 11s period with a secondary swell of 0.3m and 13s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Blacks Reef in the next 16 days are 3.5m 12s and forecast to arrive on Saturday (Aug 01) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 7s period and expected on Thursday (Aug 06) at 3PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Fri 31st Jul) | 3.5ft (1.0m) 11s |
| Best Surf | 6PM (Sun 2nd Aug) | 7ft (2.2m) 11s |
| Most Powerful | 9PM (Sat 1st Aug) | 11ft (3.5m) 12s |
Table - best surf conditions forecast for Blacks Reef over the next 16 days.
The Lowdown
Alright folks, let’s get into it. The outlook is all about Blacks Reef – a reef break that’s exposed to the south swell.
First up, we’ve got a little pulse of swell rolling in from the ESE on Thursday 30 July. Swell is a modest 4 ft, with a period of 11 seconds, meaning it’s a nice groundswell that’ll wrap in with some decent energy. The combined energy is sitting at 488 – moderate. The wind is a cross-off from the NNW at 9 mph, so the surface will be clean. The water temperature is 55°, which is a bit colder than usual for this time of year, so you’ll want a good suit. It’s a consistent spot, so it’ll be breaking, but expect crowds because it’s often busy. This is the best on offer for the early part of the forecast.
Friday 31 July drops off a little. Morning has 3 ft swell, still that 11-second ESE groundswell, but the wind is a cross-off from the NW at 12 mph. The energy is 240 – weak. The afternoon gets worse with a cross shore wind making it messy. Not worth paddling out for.
Then we hit a big gap. Saturday 1 August and Sunday 2 August are blown out. On Saturday morning, we’ve got a 10 ft SSW swell but the wind is a cross-on at 19 mph, and the energy is 1543 – strong. It’s lumpy and poor. Saturday afternoon, the onshore wind is 22 mph with a 13 ft S swell (3474 energy – very strong). That’s a mess. Sunday morning brings a 10 ft S swell with a 12-second period and light cross-on wind, but it’s marginal. The energy is 2185 – strong. The setup here is more interesting for kite surfing than paddle surfing.
Monday 3 August is still marginal. The wind is cross-shore and choppy, with a 6 ft S swell. Not the day.
Tuesday 4 August is tricky. The swell is 6 ft from the S with a 15-second period – that’s a very long period groundswell. The energy is 1844 – strong. But the wind is onshore, so it’s a bit lumpy. The tide or something else is questionable. Not a standout.
Wednesday 5 August is similar onshore wind and lumpy. Skip it.
Now, here’s the real standout. Thursday 6 August, morning. The wind goes glassy – NNW at 3 mph. The swell is 5 ft from the S with a 12-second period. The energy is 604 – moderate. The conditions are glassy, clean, and the surf is “very good.” This is your best bet for clean, fun waves in the first week. The reef will handle that long period swell well.
Friday 7 August morning brings a 10 ft SSW swell with an 8-second period – that’s short period, so it’ll be a bit fat and wobbly. The energy is 1402 – strong. The wind is cross-off from the E at 6 mph, so it’s clean. But the swell is over 8 ft, so this is for experts only. The afternoon is still 10 ft S swell but with a 10-second period and 1969 energy – strong. Still clean but big.
Saturday 8 August morning is clean again with a 8 ft S swell, 10-second period, and 1093 energy – moderate. Wind is offshore from the N at 3 mph. That’s excellent for experienced surfers.
Sunday 9 August morning is glassy again with a 5 ft S swell, 13-second period, and 872 energy – moderate. The afternoon is clean with a cross-off wind and 6 ft S swell. Both are very good.
Monday 10 August morning is offshore with a 4 ft S swell, 11-second period, and 446 energy – weak. Good for a small wave session.
Tuesday 11 August is marginal with cross-off wind and 6 ft E swell, 9-second period. The energy is 529 – moderate. Not a standout.
Wednesday 12 August afternoon is worth a look. Offshore wind from the NNE at 6 mph, 5 ft E swell, 11-second period, and 831 energy – moderate. The surf is “very good.” This is a promising small window.
Thursday 13 August morning is glassy with a 4 ft E swell, 12-second period, and 375 energy – weak. Clean but small.
Friday 14 August is a drop-off. 2 ft ESE swell, 10-second period, and 99 energy – weak. The wind is offshore but strong at 16-19 mph. The surf is poor.
So, the best on offer overall is Thursday 6 August morning – glassy, clean, 5 ft S swell. That’s the one to circle. The other standout is Saturday 8 August morning for the bigger, clean 8 ft S swell for the experienced crew. In the second week, Wednesday 12 August afternoon shows promise but it’s further out, so less certain.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sat morning. Very mild (max 16°C on Thu afternoon, min 6°C on Sat night). Winds decreasing (fresh winds from the SSW on Sat afternoon, light winds from the WSW by Sun morning). | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Tue morning. Very mild (max 15°C on Mon afternoon, min 7°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | ||||||||||||||
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 11 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | SSW 9 | S 11 | S 13 | S 12 | S 11 | S 11 | S 10 | S 13 | S 12 | S 15 | S 14 | S 14 | S 13 | S 12 | S 12 |
Wave Graph | ||||||||||||||||||||
379 | 256 | 193 | 154 | 103 | 1373 | 3448 | 4026 | 2180 | 1265 | 918 | 580 | 826 | 649 | 1683 | 2267 | 2802 | 1673 | 1074 | 933 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross | cross-on | on | cross-on | cross-on | cross-on | cross-off | cross | cross-on | cross-on | on | on | on | on | on | cross-off |
High Tide | 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 | 10:22AM1.63m | 10:51PM1.66m | |||||||
Low Tide | 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 | 4:19AM0.27m | 4:38PM0.30m | ||||||||
— | — | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — | 7:09 | — | — | 7:09 | — | — | 7:07 | — | — | |
5:15 | — | — | 5:16 | — | — | 5:17 | — | — | 5:19 | — | — | 5:20 | — | — | 5:21 | — | — | 5:22 | — | |
mm | — | — | — | — | — | 1 | — | 1 | — | — | — | — | — | 1 | 3 | — | 1 | — | — | — |
Temp °C | 16 | 14 | 15 | 15 | 11 | 8 | 9 | 8 | 9 | 11 | 10 | 14 | 15 | 11 | 10 | 9 | 9 | 9 | 9 | 6 |
Feels °C | 12 | 9 | 10 | 10 | 5 | 1 | 1 | 1 | 5 | 7 | 6 | 10 | 9 | 7 | 6 | 6 | 6 | 4 | 4 | 3 |
Swell 1 Height (m) Direction Period (s) | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | SE 16 | E 17 | E 16 | S 12 | S 11 | S 11 | S 10 | S 13 | S 12 | S 15 | S 14 | S 14 | S 13 | S 12 | S 12 |
379 | 256 | 193 | 154 | 103 | 119 | 6 | 5 | 2180 | 1265 | 918 | 580 | 826 | 649 | 1683 | 2267 | 2802 | 1673 | 1074 | 933 | |
Swell 2 Height (m) Direction Period (s) | S 15 | SSW 14 | NE 5 | NE 6 | SE 15 | ESE 12 | E 11 | E 10 | E 16 | SSE 14 | ENE 14 | S 21 | S 20 | S 20 | S 7 | E 12 | ENE 12 | E 12 | S 15 | NE 11 |
109 | 36 | 39 | 12 | 60 | 45 | 20 | 8 | 5 | 226 | 21 | 36 | 68 | 68 | 158 | 3 | 14 | 3 | 447 | 5 | |
Swell 3 Height (m) Direction Period (s) | NE 12 | S 16 | SSW 15 | SE 15 | SSE 11 | E 17 | ENE 17 | ENE 16 | — | E 15 | S 19 | ENE 13 | ENE 13 | ENE 13 | E 12 | — | — | — | NE 11 | E 18 |
6 | 21 | 47 | 37 | 12 | 6 | 29 | 25 | — | 4 | 7 | 17 | 17 | 16 | 3 | — | — | — | 5 | 6 | |
Wind waves Height (m) Direction Period (s) | N 4 | NNE 5 | NNE 6 | WNW 3 | W 4 | SSW 9 | S 11 | S 13 | — | — | — | NW 3 | W 3 | SW 5 | — | — | — | — | — | NNE 3 |
13 | 19 | 108 | 5 | 43 | 1373 | 3448 | 4026 | — | — | — | 3 | 5 | 35 | — | — | — | — | — | 2 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 3 | 33 | 33 | 33 | 73 | 114 | 75 | 3 | 3 | 0 | 10 | 65 | 3 | 14 | 3 | 41 | 73 | 9 | 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.











