
Surf Forecasts:
Blacks Reef surf forecast from 10 Sep 2026:
- Best quality surf: Sunday 13 Sep, 12AM (local time) - 8ft (2.5m), 15s period, S swell with offshore winds.
- Most powerful swell: Sunday 13 Sep, 3AM (local time) - 10ft (3.0m), 16s period, S swell with 3,712 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 3PM (local time) - 2.5ft (0.7m), 18s period with S 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 (Sep 11) at 3PM. The primary swell is predicted to be 0.7m and 18s period with a secondary swell of 1.0m and 7s. 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 16s and forecast to arrive on Sunday (Sep 13) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Monday (Sep 14) at 6PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Fri 11th Sep) | 2.5ft (0.7m) 18s |
| Best Surf | 12AM (Sun 13th Sep) | 8ft (2.5m) 15s |
| Most Powerful | 3AM (Sun 13th Sep) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Blacks Reef over the next 16 days.
The Lowdown
G’day, it’s Rusty here, and I’ve been staring at the charts for our stretch of coast. Honestly, the first few days are a bit of a write-off, so don’t go getting your hopes up for anything decent before the weekend is out. The ocean’s just not cooperating, with a lot of wind messing up what little push there is. The water’s sitting at a chilly 55°, which is a bit colder than the long-term average for this time of year, so you’ll want the thick rubber.
The first real glimmer of hope doesn’t show up until Saturday the 14th. Before that, we’ve got a couple of days of poor, chopped-up conditions with onshore winds. Sure, there’s swell early on, but it’s short period and junky. But then Monday the 14th rolls around and it’s a proper change. We scored a morning with a light offshore NNE wind and clean 6ft of south swell. The energy is moderate (832), and it’s coming from the south, which is the right direction for Blacks Reef. This is the standout of the first week. The afternoon is still great, with a clean 6ft and the wind turning a bit more north. But watch out, this reef is very consistent and the crowds are often there, especially when it’s this clean.
Tuesday the 15th still has some fun, smaller waves with clean conditions, but it’s a step down from the day before. Then it gets messy again. Wednesday and Thursday are blown out or too weak, and the gusts pick up hard later on. There’s a stretch of a few days with nothing good to offer through the middle of the week, so maybe do the chores then.
Looking further out, the long-range charts are showing a promising pulse for Monday the 21st. It’s a while away, so treat it as a promising but less certain call. The models are hinting at a clean, offshore NNE wind in the morning with a 4ft south swell, and the energy is picking up again (328). It won’t be as big as the 14th, but with light winds, it could be a very clean session on the reef. The afternoon also looks tidy. It’s worth keeping an eye on, but don’t book the time off work just yet. After that, it’s back to small and messy again, so that Monday is your second window.
So, to keep it simple: this week’s call is Monday, September 14th. Next week’s potential is Monday, September 21st. Everything else is either too messy, too small, or blowing a gale.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Thu night. Very mild (max 15°C on Thu afternoon, min 8°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Tue afternoon, min 9°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||
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) | SE 8 | SSW 16 | S 19 | S 18 | S 18 | S 17 | S 16 | S 15 | S 15 | S 14 | S 10 | S 11 | S 12 | S 11 | S 11 | S 10 | S 9 | S 9 | S 9 | SW 5 |
Wave Graph | ||||||||||||||||||||
55 | 80 | 182 | 318 | 222 | 283 | 912 | 3121 | 2697 | 1759 | 786 | 828 | 819 | 411 | 220 | 156 | 83 | 36 | 24 | 18 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | on | cross-off | cross | on | cross-on | off | cross-on | on | cross-on | off | off | cross-off | cross-off | off | cross | cross | cross | cross-on |
High Tide | 4:37PM1.75m | 5:08AM1.63m | 5:33PM1.75m | 6:03AM1.67m | 6:25PM1.75m | 6:56AM1.71m | 7:15PM1.74m | 7:45AM1.75m | 8:04PM1.73m | 8:30AM1.77m | 8:52PM1.71m | 9:14AM1.76m | 9:39PM1.68m | |||||||
Low Tide | 10:59PM0.13m | 11:19AM0.11m | 11:53PM0.14m | 12:11PM0.13m | 00:45AM0.17m | 1:02PM0.18m | 1:33AM0.22m | 1:52PM0.24m | 2:19AM0.27m | 2:43PM0.29m | 3:05AM0.33m | 3:31PM0.34m | ||||||||
— | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:11 | — | — | 6:09 | — | — | 6:07 | — | — | |
5:53 | — | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — | — | 5:57 | — | — | 5:58 | — | — | 5:59 | — | |
mm | — | 1 | 1 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 12 | 10 | 13 | 11 | 12 | 12 | 10 | 13 | 13 | 11 | 14 | 16 | 12 | 15 | 17 | 13 | 17 | 17 | 11 |
Feels °C | 13 | 10 | 7 | 11 | 8 | 9 | 9 | 7 | 8 | 9 | 9 | 11 | 13 | 9 | 13 | 14 | 9 | 12 | 13 | 7 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 7 | S 6 | S 7 | S 7 | S 17 | S 16 | S 15 | S 15 | ENE 8 | S 10 | S 11 | S 12 | S 11 | S 11 | S 10 | S 9 | S 9 | S 9 | SSW 13 |
55 | 44 | 119 | 106 | 47 | 283 | 912 | 3121 | 2697 | 7 | 786 | 828 | 819 | 411 | 220 | 156 | 83 | 36 | 24 | 17 | |
Swell 2 Height (m) Direction Period (s) | S 8 | SSW 16 | S 19 | S 18 | S 18 | ENE 9 | S 6 | ENE 12 | ENE 8 | ENE 12 | S 16 | ENE 12 | ENE 12 | E 9 | S 16 | SSW 15 | SSW 14 | SSW 14 | S 13 | S 10 |
21 | 80 | 182 | 318 | 222 | 15 | 52 | 30 | 7 | 14 | 132 | 13 | 13 | 6 | 45 | 47 | 40 | 36 | 14 | 7 | |
Swell 3 Height (m) Direction Period (s) | NE 7 | ENE 8 | SE 7 | SE 7 | SE 7 | ESE 7 | ENE 13 | — | ENE 12 | SE 10 | ENE 12 | E 15 | — | E 11 | E 9 | E 8 | ENE 4 | E 12 | E 12 | NNE 4 |
8 | 6 | 26 | 26 | 12 | 4 | 33 | — | 14 | 4 | 14 | 4 | — | 2 | 6 | 5 | 1 | 11 | 11 | 2 | |
Wind waves Height (m) Direction Period (s) | — | SE 3 | — | — | — | SSW 5 | — | NE 8 | — | S 14 | — | — | ENE 3 | N 4 | WNW 2 | NE 5 | NW 3 | NW 3 | W 3 | SW 5 |
— | 3 | — | — | — | 49 | — | 18 | — | 1759 | — | — | 8 | 9 | 1 | 4 | 2 | 4 | 6 | 18 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 3 | 3 | 0 | 3 | 41 | 6 | 0 | 3 | 188 | 3 | 0 | 0 | 0 | 0 | 0 | 9 | 9 | 10 | 133 |
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.










