Surf Forecasts:
The Box surf forecast from 18 Aug 2026:
- Best quality surf: Thursday 20 Aug, 3AM (local time) - 8ft (2.5m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 24 Aug, 9AM (local time) - 13ft (4.0m), 16s period, SW swell with 9,045 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 3AM (local time) - 8ft (2.5m), 15s period with SW swell.
Best Forecast Surf Conditions for The Box this week:
The surf forecast for The Box over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 3AM. The primary swell is predicted to be 2.5m and 15s period with a secondary swell of 0.9m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at The Box in the next 16 days are 4.0m 16s and forecast to arrive on Monday (Aug 24) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Wednesday (Aug 19) at 12PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Thu 20th Aug) | 8ft (2.5m) 15s |
| Best Surf | 3AM (Thu 20th Aug) | 8ft (2.5m) 15s |
| Most Powerful | 9AM (Mon 24th Aug) | 13ft (4.0m) 16s |
Table - best surf conditions forecast for The Box over the next 16 days.
Short Range ForecastSome drizzle, heaviest during Tue afternoon. Very mild (max 14°C on Tue morning, min 10°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Sun night. Very mild (max 15°C on Sat afternoon, min 11°C on Fri morning). Winds increasing (calm on Fri morning, fresh winds from the NW by Sun morning). | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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) | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | WSW 9 | WSW 9 | WSW 9 | SW 16 | SW 15 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3240 | 2499 | 2496 | 1866 | 1381 | 3103 | 2247 | 1779 | 1304 | 999 | 801 | 1203 | 499 | 273 | 163 | 645 | 1119 | 890 | 9045 | 6926 | 5894 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross | cross-off | cross-off | cross-off | cross | cross | cross-off | glassy | on | cross-on | on | on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on |
High Tide | 1:04PM3.19m | 1:20AM3.12m | 1:45PM3.01m | 2:05AM2.90m | 2:35PM2.83m | 3:05AM2.71m | 3:44PM2.69m | 4:24AM2.61m | 5:15PM2.68m | 5:45AM2.63m | 6:27PM2.78m | 6:50AM2.74m | 7:19PM2.95m | ||||||||
Low Tide | 7:20PM0.85m | 7:42AM0.83m | 8:05PM1.07m | 8:25AM1.04m | 8:59PM1.27m | 9:20AM1.22m | 10:08PM1.40m | 10:38AM1.33m | 11:36PM1.40m | 12:05PM1.29m | 00:48AM1.27m | 1:08PM1.13m | 1:38AM1.09m | ||||||||
 |  |  | |  | | | |  |  | |  |  | | | | | | | | | |
 | 7:05 | — | — | 7:03 | — | — | 7:03 | — | — | 7:01 | — | — | 7:00 | — | — | 6:58 | — | — | 6:58 | — | — |
 | — | 5:58 | — | — | 5:58 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — |
mm | — | 1 | — | — | — | — | — | — | — | — | — | 1 | 2 | 2 | 1 | — | — | 6 | — | — | — |
Temp °C | 14 | 13 | 13 | 12 | 12 | 11 | 13 | 13 | 12 | 13 | 13 | 14 | 14 | 15 | 14 | 15 | 15 | 15 | 14 | 14 | 14 |
Feels °C | 9 | 8 | 7 | 7 | 6 | 6 | 10 | 10 | 8 | 11 | 10 | 11 | 12 | 11 | 10 | 10 | 9 | 10 | 11 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | — | SW 14 | SW 13 | SW 12 | SW 12 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 14 | SW 14 | SW 14 | SW 14 | SW 11 | SW 19 | SW 16 | WSW 9 | SW 16 | SW 15 | SW 15 |
| kJ | — | 2499 | 2496 | 1866 | 1381 | 3103 | 2247 | 1779 | 1304 | 999 | 801 | 1203 | 499 | 273 | 134 | 287 | 395 | 890 | 9045 | 6926 | 5894 |
Swell 2 Height (m) Direction Period (s) | — | — | SW 20 | SW 18 | SW 17 | S 7 | S 7 | — | — | — | SW 17 | — | W 5 | SW 8 | SW 13 | SW 13 | — | SW 17 | — | — | — |
| kJ | — | — | 61 | 383 | 1081 | 124 | 52 | — | — | — | 270 | — | 23 | 54 | 163 | 85 | — | 760 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | S 11 | — | — | — | — | — | — | — | — | W 24 | SW 19 | — | — | SW 15 | — | — | — |
| kJ | — | — | — | — | 21 | — | — | — | — | — | — | — | — | 11 | 127 | — | — | 104 | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 14 | — | — | SSE 5 | SSE 6 | — | — | S 6 | — | — | — | — | WNW 5 | W 4 | WNW 5 | WSW 9 | WSW 9 | — | — | — | — |
| kJ | 3240 | — | — | 42 | 112 | — | — | 35 | — | — | — | — | 18 | 15 | 45 | 645 | 1119 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 43 | 3 | 3 | 377 | 7 | 3 | 3 | 3 | 0 | 0 | 64 | 64 | 542 | 564 | 564 | 573 | 564 | 146 | 3 | 3 | 471 |
Best forecast wave conditions in Northland | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our The Box surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the The Box Surf forecast
The above surf forecast table for The Box provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Box can be found by selecting the local surf guide option on the grey menu. Our The Box 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 (The Box) 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 The Box 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.
Are you planning a holiday in Northland? If you are looking for accommodation near The Box, camping, hotels and holiday cottages in Northland, consider staying in Houhora which is 45 km (28 miles) away.
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