Surf Forecasts:
The Box surf forecast from 11 Sep 2026:
- Most powerful swell: Friday 18 Sep, 2PM (local time) - 2.5ft (0.7m), 5s period, ESE swell with 25 kJ wave energy.
Best Forecast Surf Conditions for The Box this week:
The most powerful waves expected at The Box in the next 16 days are 0.7m 5s and forecast to arrive on Friday (Sep 18) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Tuesday (Sep 15) at 5PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Fri 18th Sep) | 2.5ft (0.7m) 5s |
Table - best surf conditions forecast for The Box over the next 16 days.
The Lowdown
Alright, Rusty here again, let’s talk this one through.
Looking at the full 16 days for The Box, it’s a real slow burner. Not much happening until we’re well into the second week. The first real sniff of surf isn’t until the morning of September 23rd.
Most of the early period, from now up to September 22nd, is flat or close to it. Swell heights are tiny, mostly under 1 ft, and the energy is weak. There’s a long stretch from mid-September where it’s completely flat—days on end with nothing. Not much point even looking at the ocean.
Then, on the morning of September 23rd, we get a little bump. A 4 ft swell pushing in from the ESE, with a period of 7 seconds. That’s a short period, so the waves won’t be super lined up, but the big win is the wind: perfectly glassy, dead calm. The combined swell energy sits at 153, which is moderate. For The Box, which is a beach and reef setup and doesn’t break all that often, this is a rare chance for clean, rideable surf. It’s not for beginners at 4 ft, but for anyone with a bit of experience, it’s the best window in the whole forecast. Crowds can happen here from time to time, so don’t expect to have it all to yourself. The water’s running slightly warmer than usual for this time of year.
The afternoon of the 23rd still has 4 ft waves, but a light cross-shore wind comes up, so it won’t be as clean. That morning is your money session.
After that, it fades fast. September 24th has some small, clean waves but nothing special, and by the 25th it’s flat again.
So, the call: if you’re keen, that Wednesday morning, September 23rd, is the only real chance in the bunch. The rest is a waiting game.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Mon afternoon, min 23°C on Sat morning). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Thu morning. Warm (max 27°C on Tue morning, min 23°C on Wed morning). Winds decreasing (fresh winds from the S on Tue afternoon, calm by Wed morning). | ||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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) | SSE 3 | NE 7 | SE 4 | NE 5 | SE 5 | NE 6 | NE 5 | NE 4 | SSE 4 | SW 3 | SSW 3 | S 3 | S 3 | SSE 3 | SE 4 | SE 4 | ESE 4 | NE 5 | NNE 4 |
Wave Graph  | |||||||||||||||||||
 kJ | 1 | 2 | 5 | 1 | 0 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 3 | 10 | 2 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-on | cross | cross-off | cross-on | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-on | glassy | cross-on | cross-on | cross-on |
High Tide | 10:45PM0.11m | 10:50AM0.05m | 11:17PM0.09m | 11:55AM0.07m | 11:38PM0.08m | 12:46PM0.08m | 11:43PM0.06m | 1:40PM0.09m | 2:27PM0.10m | 3:24PM0.11m | |||||||||
Low Tide | 6:49AM0.04m | 3:37PM0.04m | 6:20AM0.04m | 5:19PM0.05m | 6:05AM0.04m | 7:14PM0.05m | 5:51AM0.04m | 5:42AM0.03m | 5:42AM0.03m | ||||||||||
 | | |  | | | | | | | | | | |  | |  | | | |
 | — | 7:37 | — | — | 7:37 | — | — | 7:39 | — | — | 7:39 | — | — | 7:39 | — | — | 7:41 | — | — |
 | 8:14 | — | 8:13 | — | — | 8:10 | — | — | 8:09 | — | — | 8:07 | — | — | 8:06 | — | — | 8:05 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | — | — |
Temp °C | 25 | 24 | 25 | 24 | 23 | 25 | 25 | 25 | 26 | 25 | 27 | 27 | 25 | 24 | 26 | 25 | 25 | 26 | 25 |
Feels °C | 24 | 25 | 26 | 24 | 25 | 24 | 25 | 27 | 25 | 23 | 24 | 23 | 22 | 27 | 26 | 27 | 26 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | SE 4 | SE 4 | SE 6 | SE 5 | SE 5 | SE 5 | SE 4 | ESE 4 | — | — | — | — | N 5 | SSE 3 | SSE 4 | SE 4 | ESE 4 | NE 5 | ESE 6 |
| kJ | 3 | 3 | 1 | 13 | 13 | 14 | 3 | 1 | — | — | — | — | 1 | 1 | 2 | 3 | 3 | 10 | 27 |
Swell 2 Height (m) Direction Period (s) | NE 5 | NE 7 | NE 6 | NE 5 | — | NE 6 | NE 5 | NE 4 | — | — | — | — | — | — | — | — | NE 5 | NE 5 | NNE 4 |
| kJ | 1 | 2 | 2 | 1 | — | 2 | 1 | 1 | — | — | — | — | — | — | — | — | 1 | 4 | 2 |
Swell 3 Height (m) Direction Period (s) | — | NE 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 7 | — | NE 8 |
| kJ | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | 2 |
Wind waves Height (m) Direction Period (s) | SSE 3 | — | SE 4 | — | — | — | — | — | SSE 4 | SW 3 | SSW 3 | S 3 | S 3 | — | SE 4 | — | — | SE 4 | — |
| kJ | 1 | — | 5 | — | — | — | — | — | 1 | 2 | 1 | 5 | 5 | — | 3 | — | — | 7 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 538 | 538 | 629 | 418 | 418 | 571 | 396 | 418 | 540 | 538 | 538 | 783 | 820 | 571 | 571 | 539 | 537 | 538 | 281 |
Best forecast wave conditions in Valencia | |||||||||||||||||||
Best forecast wave conditions in Spain (Europe) | |||||||||||||||||||
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.
The Box is 4 km (2 miles) from Javea. If you plan a holiday in Valencia, look for hotels and other accommodation in Javea. Javea has rooms for a wide range of budgets as well as car hire and transport links.
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