Surf Forecasts:
The Box surf forecast from 18 Aug 2026:
- Most powerful swell: Monday 24 Aug, 11AM (local time) - 3.5ft (1.1m), 5s period, NNE swell with 66 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 1.1m 5s and forecast to arrive on Monday (Aug 24) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Thursday (Aug 20) at 5PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Mon 24th Aug) | 3.5ft (1.1m) 5s |
Table - best surf conditions forecast for The Box over the next 16 days.
The Lowdown
Alright mate, let’s take a look at what The Box has cookin’ over the next 16 days. It’s a grim picture, I’m not gonna sugarcoat it. We’ve got a long gap with nothing worth paddling out for, and even when there’s a bit of bump, it’s barely worth the walk.
The first bit of action is on Tuesday the 18th of August, but it’s super tiny – like 1 ft from the SE, with a combined energy of only 5 – that’s weak as dishwater. The water’s a warm 85°, which is about 6° warmer than normal for this time of year – very unusual, you’ll be sweating in boardies. Wind is cross-shore, making for a little chop, and the waves are poor.
Then we hit a dead zone from Wednesday the 19th all the way through. Days of flatness. Combined energy is zero most times. There are a few glassy mornings like Sunday the 23rd and Saturday the 29th, but with no swell, it’s just a flat calm.
There’s a little pulse on Sunday the 23rd – a 2 ft NNE groundswell with a 6-second period and energy of 31. Still weak, but with glassy conditions in the afternoon, you might find a tiny, knee-high bump. That’s the highlight, and it’s not saying much.
We do see a small bump on Monday the 24th, with a 3 ft NNE swell and combined energy of 61, but it’s cross-onshore and choppy, so the quality is shot.
By Tuesday the 25th, we get a 3 ft ENE swell with energy of 81, but it’s onshore wind and unknown conditions – not great.
The rest of the week is a mix of tiny leftovers and flat spells. On Saturday the 29th, there’s a glassy morning with a 0.3 ft NE bump – basically nothing.
Finally, on the morning of the 1st of September, we get a clean 2 ft NE swell with a 6-second period and energy of 36. It’s cross-offshore and clean, but it’s still small and short-period. Waist-high at best for a longboard.
Bottom line: this is a rough stretch for The Box. It’s an inconsistent spot anyway, and this kind of blank run is pretty normal for the area. The only possible window is those glassy mornings around the 23rd and 29th, but you’ll be hunting for ankle-biters. Forecasts can change, but right now, it’s a no-go.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Thu night. Warm (max 36°C on Wed night, min 25°C on Thu night). Winds decreasing (strong winds from the SW on Thu morning, calm by Thu night). | Days 5-7 Weather SummaryMostly dry. Warm (max 29°C on Fri afternoon, min 25°C on Sat morning). Winds decreasing (fresh winds from the S on Sat night, calm by Sun afternoon). | |||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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 4 | NE 8 | NE 7 | NE 6 | SSW 4 | SW 6 | SW 6 | S 5 | SSW 4 | S 6 | S 6 | S 6 | ESE 4 | NE 6 | NE 6 | NE 6 | NNE 6 | NNE 6 | NNE 5 | NE 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 5 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 18 | 31 | 15 | 27 | 29 | 61 | 40 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | off | off | cross-off | off | off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | glassy | cross | cross | cross-on | on |
High Tide | 3:55PM0.08m | 11:47PM0.07m | 4:53PM0.09m | 5:49PM0.10m | 6:40PM0.11m | 7:37PM0.11m | 8:22PM0.12m | 9:11PM0.12m | ||||||||||||
Low Tide | 9:57PM0.07m | 8:06AM0.03m | 8:04AM0.03m | 8:16AM0.02m | 8:45AM0.02m | 9:29AM0.01m | 10:20AM0.01m | |||||||||||||
 |  | | |  |  |  |  | | | | | | | | |  | |  | | |
 | — | — | 7:15 | — | — | 7:16 | — | — | 7:16 | — | — | 7:18 | — | — | 7:18 | — | — | 7:20 | — | — |
 | 8:50 | — | — | 8:49 | — | — | 8:46 | — | — | 8:45 | — | — | 8:45 | — | — | 8:43 | — | — | 8:42 | — |
mm | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 30 | 30 | 31 | 31 | 36 | 33 | 31 | 30 | 28 | 29 | 28 | 26 | 27 | 27 | 27 | 27 | 26 | 26 | 25 | 26 |
Feels °C | 29 | 29 | 32 | 31 | 34 | 31 | 29 | 26 | 29 | 27 | 26 | 29 | 26 | 26 | 30 | 30 | 28 | 27 | 25 | 29 |
Swell 1 Height (m) Direction Period (s) | — | SE 4 | ESE 4 | NE 6 | — | SW 6 | SW 6 | NNW 4 | NW 4 | S 6 | S 6 | S 6 | SSW 4 | NE 6 | NE 6 | NE 6 | NNE 6 | E 5 | — | NE 6 |
| kJ | — | 5 | 2 | 1 | — | 15 | 10 | 17 | 1 | 30 | 30 | 16 | 7 | 18 | 31 | 15 | 27 | 2 | — | 40 |
Swell 2 Height (m) Direction Period (s) | — | NE 8 | NE 7 | NE 6 | SE 4 | — | NNW 4 | S 5 | — | SW 7 | — | SE 4 | NE 6 | E 5 | S 3 | — | — | SW 4 | — | SW 5 |
| kJ | — | 3 | 2 | 1 | 1 | — | 4 | 17 | — | 12 | — | 1 | 1 | 1 | 1 | — | — | 1 | — | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SSW 5 | — | — | — | — | N 6 | — | — | SW 6 | SW 4 | SW 6 | — | SW 7 |
| kJ | — | — | — | — | — | — | — | 9 | — | — | — | — | 1 | — | — | 1 | 1 | 2 | — | 2 |
Wind waves Height (m) Direction Period (s) | SE 4 | SW 3 | SSW 3 | S 3 | SSW 4 | NW 3 | — | — | SSW 4 | — | — | — | ESE 4 | S 4 | — | S 3 | — | NNE 6 | NNE 5 | ESE 6 |
| kJ | 5 | 3 | 4 | 7 | 22 | 4 | — | — | 19 | — | — | — | 2 | 2 | — | 1 | — | 29 | 61 | 10 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 793 | 670 | 670 | 793 | 170 | 225 | 629 | 255 | 255 | 600 | 45 | 418 | 538 | 418 | 255 | 275 | 142 | 282 | 388 | 539 |
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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