Surf Forecasts:
The Box surf forecast from 15 Sep 2026:
- Most powerful swell: Thursday 17 Sep, 2PM (local time) - 3ft (0.9m), 5s period, E swell with 40 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 0.9m 5s and forecast to arrive on Thursday (Sep 17) 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 6s period and expected on Friday (Sep 18) at 8PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Thu 17th Sep) | 3ft (0.9m) 5s |
Table - best surf conditions forecast for The Box over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's take a look at what we've got cookin' for the next 16 days. Gotta be straight with you right off the bat – this is lookin' like a long, flat spell. There's really nothin' to get excited about, and for a spot like The Box, that’s a tough pill to swallow.
We’re startin' right now with no surf on offer. This stretch of poor conditions runs deep. We're lookin' at a gap of several days with no real recommendations. The first couple of days, Tuesday and Wednesday the 15th and 16th, are dead flat. No swell, just a cross-off wind makin' it look clean but totally unsurfable.
Late on Thursday the 17th, a tiny pulse tries to show up. We're talkin' about a short period, weak east swell knockin' in at about 3 ft, but the period is a poor 5 seconds. The combined swell energy is only 42 – that’s weak, barely a ripple. The wind is cross-onshore and a bit chunky, so even the small stuff will be a mess. This ain't worth paddlin' out for.
From Friday the 18th all the way through the end of September, the story don't change. We see tiny waves – 1 to 2 ft – with short periods (5–6 seconds) and generally weak energy readings (mostly under 30). The winds are a mix of cross and cross-onshore, keepin' things choppy. Even on the 24th of September, when we get a glassy morning, the swell is a non-factor at about 2 ft with a 6-second period. The water temp runs a touch warmer than normal at about 79°F, but that don't help the waves.
By the 25th, it gets even worse, with energy values droppin' to single digits or even 0 for days on end. The Box is inconsistent at the best of times, and this spell of nothin' is pretty typical for when the forecast goes quiet. There’s no standout, no hidden gem, just a long wait. The break is a beach-and-reef setup, and with this kind of weak, crummy wind and tiny swell, it’s more interestin' for kite surfin' than paddle surfin', I reckon.
Keep an eye on the forecasts, 'cause it tends not to stay this poor for long. But for now, hang up your board.
Rusty.
Short Range ForecastHeavy rain (total 24mm), heaviest during Thu morning. Warm (max 27°C on Tue afternoon, min 21°C on Thu night). Winds decreasing (fresh winds from the S on Tue afternoon, calm by Wed night). | Days 4-6 Weather SummaryHeavy rain (total 24mm), heaviest during Fri morning. Warm (max 24°C on Sat afternoon, min 21°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
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) | — | S 3 | SSW 4 | SSW 3 | S 3 | SE 3 | E 4 | E 5 | ENE 5 | NE 7 | NE 5 | NE 5 | NE 6 | E 6 | NE 7 | NE 6 | NE 6 | NE 5 | NE 5 | NE 5 | ENE 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 0 | 0 | 0 | 0 | 1 | 11 | 40 | 33 | 10 | 9 | 10 | 25 | 30 | 26 | 14 | 11 | 23 | 20 | 18 | 8 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross | on | glassy | cross | cross-on | cross | cross | cross-on | cross |
High Tide | 1:40PM0.09m | 2:27PM0.10m | 3:24PM0.11m | 4:29PM0.11m | 5:31PM0.11m | 6:34PM0.11m | 7:25PM0.11m | ||||||||||||||
Low Tide | 5:42AM0.03m | 5:42AM0.03m | 5:56AM0.02m | 6:27AM0.02m | 7:09AM0.02m | 8:08AM0.02m | |||||||||||||||
 | |  | | |  |  | |  | |  | | | | | | | | | | | |
 | 7:39 | — | — | 7:39 | — | — | 7:41 | — | — | 7:41 | — | — | 7:43 | — | — | 7:43 | — | — | 7:45 | — | — |
 | — | 8:07 | — | — | 8:06 | — | — | 8:05 | — | — | 8:02 | — | — | 8:01 | — | — | 8:00 | — | — | 7:58 | — |
mm | — | — | — | — | — | 1 | 9 | 3 | 11 | 10 | 8 | 4 | 2 | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 25 | 25 | 26 | 24 | 22 | 23 | 22 | 21 | 23 | 23 | 23 | 24 | 24 | 23 | 24 | 24 | 23 | 24 | 24 |
Feels °C | 24 | 23 | 22 | 26 | 24 | 23 | 23 | 22 | 22 | 20 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 25 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | E 4 | NE 8 | ESE 5 | ESE 5 | ESE 5 | ESE 6 | NE 6 | — | NE 7 | NE 6 | SE 5 | NE 5 | NE 5 | E 6 | ENE 4 |
| kJ | — | — | — | — | — | — | 11 | 2 | 17 | 16 | 22 | 32 | 25 | — | 26 | 14 | 6 | 23 | 20 | 1 | 8 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | NE 8 | — | NE 5 | NE 5 | — | NE 5 | ESE 6 | — | ESE 5 | ESE 5 | — | — | E 6 | — | — |
| kJ | — | — | — | — | — | — | 3 | — | 21 | 10 | — | 10 | 18 | — | 10 | 10 | — | — | 1 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NE 8 | NE 7 | — | NE 7 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 2 | 8 | — | 2 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | S 3 | SSW 4 | SSW 3 | S 3 | SE 3 | — | E 5 | ENE 5 | — | NE 5 | NNE 5 | — | E 6 | — | — | NE 6 | — | NNW 3 | NE 5 | NNW 2 |
| kJ | — | 4 | 10 | 3 | 3 | 1 | — | 40 | 33 | — | 9 | 8 | — | 30 | — | — | 11 | — | 3 | 18 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 656 | 735 | 580 | 600 | 571 | 391 | 537 | 538 | 2 | 298 | 571 | 11 | 2 | 571 | 72 | 418 | 543 | 418 | 418 | 571 | 396 |
Best forecast wave conditions in Valencia | |||||||||||||||||||||
Best forecast wave conditions in Spain (Europe) | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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