Surf Forecasts:
The Box surf forecast from 15 Aug 2026:
- Most powerful swell: Thursday 20 Aug, 8PM (local time) - 2.5ft (0.8m), 4s period, SSE swell with 19 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 0.8m 4s and forecast to arrive on Thursday (Aug 20) at 8PM. 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 6s period and expected on Saturday (Aug 22) at 5AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Thu 20th Aug) | 2.5ft (0.8m) 4s |
Table - best surf conditions forecast for The Box over the next 16 days.
The Lowdown
Alright, Rusty here. Let's break down what's cooking at The Box.
Truth is, we're in for a tough stretch. For the next week and a half, through the 24th of August, it's pretty much flat. You'll see a few tiny blips of swell, but with short, weak periods and messy wind, there's nothing to get excited about. It's one of those dry spells where you just have to wait it out.
Our first real bump comes on Monday the 24th of August. We're looking at a 4ft swell from the NNE with a 5-second period. The wind will be a moderate cross-shore from the NNW, kicking up a cross-chop. The combined energy is weak at 72—it's not much to write home about.
Things actually try to build later that same day. Monday afternoon brings a 5ft swell from the NE, with the period stretching to 7 seconds and combined energy jumping to a moderate 178. But here's the kicker: the wind turns cross-onshore from the NE at 15 mph, and that's going to chop it up. The Box is a beach and reef set-up that rarely breaks, and when it does, it's strictly for advanced surfers. That onshore wind is a real buzzkill.
Tuesday the 25th sees similar energy—a 4ft swell from the E, combined energy at 112—but again, cross-onshore winds from the NNE will keep things rough. From Wednesday the 26th onward, the swell drops back under 3ft, with the wind staying onshore or cross-onshore. There is no clean, glassy session in this entire 16-day forecast. It's all poor conditions.
The water is a scorcher, though—85°, which is a full 6° warmer than normal. That's very unusual for this time of year.
Bottom line: there are no good surf options in this entire 16-day window. The Box is an inconsistent spot, and this dry run is pretty typical for the area. Don't force it. Forecasts can always change, but for now, the board stays in the car.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Sat afternoon, min 26°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 33°C on Wed afternoon, min 26°C on Thu night). Winds decreasing (fresh winds from the SSW on Wed afternoon, calm by Fri morning). | |||||||||||||||||||
Sat 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||
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 | SE 5 | SE 5 | ESE 5 | ESE 5 | ESE 5 | SE 4 | SE 5 | SE 5 | SE 4 | NE 7 | SSE 4 | SSW 5 | SSW 4 | SSW 3 | E 5 | SSW 6 | SE 4 | SSW 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | 0 | 12 | 0 | 2 | 5 | 0 | 0 | 0 | 4 | 0 | 3 | 0 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | glassy | cross-on | cross-on | cross-off | cross | on | cross-off | glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-on |
High Tide | 00:31AM0.11m | 1:12PM0.04m | 00:55AM0.10m | 2:46PM0.06m | 00:57AM0.08m | 3:55PM0.08m | 11:47PM0.07m | 4:53PM0.09m | 5:49PM0.10m | 6:40PM0.11m | ||||||||||
Low Tide | 3:31PM0.02m | 9:02AM0.04m | 4:49PM0.04m | 8:34AM0.04m | 6:39PM0.06m | 8:16AM0.04m | 9:57PM0.07m | 8:06AM0.03m | 8:04AM0.03m | 8:16AM0.02m | ||||||||||
 |  |  | |  | | | | | | | | | |  | | | | | | |
 | — | — | 7:13 | — | — | 7:13 | — | — | 7:15 | — | — | 7:15 | — | — | 7:16 | — | — | 7:16 | — | — |
 | 8:53 | — | — | 8:52 | — | — | 8:51 | — | — | 8:50 | — | — | 8:49 | — | — | 8:46 | — | — | 8:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 30 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 29 | 30 | 29 | 32 | 33 | 32 | 32 | 33 | 30 | 29 | 29 | 28 |
Feels °C | 31 | 30 | 30 | 31 | 31 | 32 | 31 | 31 | 31 | 31 | 28 | 32 | 33 | 29 | 32 | 30 | 30 | 31 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | — | SE 4 | SE 5 | SE 5 | ESE 5 | ESE 5 | — | SE 4 | SE 5 | — | SE 4 | SE 4 | NE 6 | SSW 5 | — | SSW 3 | E 5 | SSW 6 | SSW 6 | SE 5 |
| kJ | — | 6 | 7 | 13 | 10 | 10 | — | 5 | 6 | — | 5 | 4 | 1 | 18 | — | 1 | 4 | 45 | 32 | 1 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | NE 7 | NE 6 | SE 4 | SE 4 | — | — | SE 5 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 1 | 1 | — | — | 6 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | ESE 5 | — | — | SE 5 | SSW 3 | SSW 3 | SSE 4 | NW 4 | SSW 4 | — | SSW 5 | SSW 6 | SE 4 | SSW 6 |
| kJ | — | — | — | — | — | — | 10 | — | — | 12 | 1 | 2 | 5 | 2 | 4 | — | 37 | 103 | 3 | 40 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 629 | 538 | 538 | 571 | 68 | 255 | 501 | 418 | 579 | 742 | 715 | 689 | 792 | 741 | 538 | 571 | 11 | 2 | 538 | 142 |
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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