Surf Forecasts:
How big are the waves at Blacks Reef today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 8ft (2.4m), 8s period with SSW swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 15ft (4.5m), 10s period with S swell.
- Evening surf: Evening surf (18 Aug, local time) - 18ft (5.5m), 11s period with S swell.
The current surf forecast for Blacks Reef at 7AM is: 3.0m 9s primary swell from a South direction and 1.9m 9s secondary swell from a Southeast direction, 0.6m 14s secondary swell from a South direction (forecast issued at 11:00pm August 17). The wind direction is predicted to be cross-onshore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 8ft (2.4m) | 8s |
| Afternoon (18 Aug) | 15ft (4.5m) | 10s |
| Evening (18 Aug) | 18ft (5.5m) | 11s |
Table - waves today at Blacks Reef. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 15mm), heaviest on Tue afternoon. Very mild (max 11°C on Thu morning, min 8°C on Mon night). Winds decreasing (near gales from the SSW on Tue night, light winds from the SSW by Thu afternoon). | |||||||||||||||||
Tuesday 18 | Wednesday 19 | ||||||||||||||||
9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||
Wave Height (m) Direction Period (s) | S 9 | S 9 | S 9 | S 9 | SSW 8 | S 9 | S 10 | S 10 | S 11 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 15 | S 15 |
Wave Graph  | |||||||||||||||||
 kJ | 1592 | 1507 | 1398 | 1306 | 644 | 2299 | 3414 | 5365 | 6687 | 8216 | 8606 | 7260 | 5881 | 4784 | 4083 | 5208 | 3829 |
Wind (km/h) | |||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | cross-on | on | on | on | on | on | on | on | on | on | on | on | on |
High Tide | 9:21PM1.76m | 9:46AM1.75m | 10:10PM1.71m | 10:33AM1.72m | |||||||||||||
Low Tide | 3:39AM0.22m | 4:01PM0.28m | 4:27AM0.30m | 4:51PM0.34m | |||||||||||||
 | |  |  |  |  |  | | | | | |  | | | | | |
 | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — |
 | — | — | — | — | — | — | 5:32 | — | — | — | — | — | — | — | 5:34 | — | — |
mm | 1 | 1 | 1 | — | — | — | 1 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | — | — | — |
Temp °C | 9 | 8 | 8 | 8 | 9 | 10 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 |
Feels °C | 1 | 1 | 0 | 0 | 0 | 1 | -2 | -3 | -3 | -3 | -3 | -2 | 0 | 1 | 2 | 2 | 4 |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | SE 9 | SE 9 | SE 10 | SE 11 | SE 16 | SE 16 | ESE 11 | — | SE 15 | SE 14 | SE 14 | ESE 14 | SE 9 | SE 9 |
| kJ | 94 | 90 | 48 | 626 | 470 | 341 | 344 | 11 | 11 | 85 | — | 9 | 65 | 30 | 18 | 486 | 486 |
Swell 2 Height (m) Direction Period (s) | — | E 10 | E 10 | S 14 | E 10 | — | — | — | — | — | — | — | — | ESE 13 | S 15 | SE 12 | SE 9 |
| kJ | — | 108 | 68 | 142 | 46 | — | — | — | — | — | — | — | — | 17 | 1349 | 40 | 528 |
Swell 3 Height (m) Direction Period (s) | — | — | — | E 10 | — | — | — | — | — | — | — | — | — | SE 14 | SE 14 | — | — |
| kJ | — | — | — | 46 | — | — | — | — | — | — | — | — | — | 29 | 29 | — | — |
Wind waves Height (m) Direction Period (s) | S 9 | S 9 | S 9 | S 9 | SSW 8 | S 9 | S 10 | S 10 | S 11 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 15 | S 15 |
| kJ | 1592 | 1507 | 1398 | 1306 | 644 | 2299 | 3414 | 5365 | 6687 | 8216 | 8606 | 7260 | 5881 | 4784 | 4083 | 5208 | 3829 |
Nearest Offshore or Glassy | |||||||||||||||||
Distance (km) | 82 | 82 | 75 | 75 | 114 | 169 | 286 | 169 | 169 | 169 | 169 | 162 | 91 | 89 | 162 | 82 | 44 |
Best forecast wave conditions in Gisborne and Mahia | |||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||
Header Global | |||||||||||||||||
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