The Box Surf Break

Lat Long: 38.77° N 0.20° E

The Box Surf Forecast and Surf Report

Issued: 7 pm 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's The Box sea temperature is
29.2° C
3.2° 

The Box surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


The Box surf forecast from 18 Aug 2026:

  • Best quality surf: Sunday 23 Aug, 5AM (local time) - 3ft (0.9m), 7s period, NE swell with cross-offshore winds.
  • Most powerful swell: Sunday 23 Aug, 5AM (local time) - 3ft (0.9m), 7s period, NE swell with 79 kJ wave energy.
  • Next surfable swell (1★+): Sunday 23 Aug, 5AM (local time) - 3ft (0.9m), 7s period with NE 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 Sunday (Aug 23) at 5AM. The primary swell is predicted to be 0.9m and 7s period. 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 0.9m 7s and forecast to arrive on Sunday (Aug 23) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 7s period and expected on Thursday (Aug 20) at 8AM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sun 23rd Aug)3ft (0.9m) 7s
Best Surf 5AM (Sun 23rd Aug)3ft (0.9m) 7s
Most Powerful 5AM (Sun 23rd Aug)3ft (0.9m) 7s

Table - best surf conditions forecast for The Box over the next 16 days.


The Lowdown

Alright, Rusty here. Let's have a look at what’s cookin’ for The Box over the next couple weeks.

Honestly, mate, it's a pretty grim stretch. The Box is usually a spot that needs a decent push from the ENE to get any kind of shape, and for the next week and a half, we're just not seeing that. We've got a long, flat run coming up. From Wednesday the 19th right through to the morning of Sunday the 23rd, it’s basically a write-off – tiny, weak dribble or straight-up flat. A few days of glassy conditions on the 22nd might make it feel nice on the sand, but there’s no wave to ride.

The first real glimmer comes on the morning of Sunday the 23rd. We get a bump in swell, a clean 3 ft from the NE with the wind swinging WSW offshore. The combined energy is still low, at 79 (weak), but for the first time in a while, you could actually get a little slide. It’s not gonna be pumping, but if you’re desperate and the conditions are clean, you might snag a few reform waves. It’s an inconsistent break, so expect to wait.

After that, it's back to the doldrums. Monday the 24th starts glassy with a weak 2 ft NE swell (combined energy of 51), but it’s poor. Tuesday and Wednesday are a total struggle with tiny scraps.

Thursday the 27th afternoon shows a sudden jump in size to 4 ft from the NNE, with the combined energy climbing to 81 (still weak). But it’s a messy cross-shore wind and a short 6-second period – it’ll be lumpy and hard to get into. Not worth the paddle.

The following week, from the 29th of August into September, is just flat or close to it. A few days of glassy mornings and onshore afternoons, but with zero swell energy.

So, the standout? It’s got to be the Sunday morning, the 23rd of August. It’s the only window with a clean, offshore wind and a wave you can actually stand up on. Just don't expect any power – it’s a knee-to-waist high dribbler at best.

Stay patient, or find something else to do. This is a tough run for The Box.

Rusty.

Short Range Forecast

Light rain (total 5mm), mostly falling on Thu night. Warm (max 32°C on Wed afternoon, min 23°C on Thu night). Mainly strong winds.

Days 5-7 Weather Summary

Mostly dry. Warm (max 28°C on Fri night, min 25°C on Fri night). Mainly fresh winds.

Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.1
NE
8
0.1
NE
7
0.1
NE
6
1.1
SSW
5
1.5
SSW
7
0.7
S
6
0.7
SSE
5
1
SSW
5
0.3
SE
4
0.7
S
6
0.5
S
6
0.3
NE
5
0.5
NE
7
0.9
NE
7
0.7
NE
6
0.7
NE
6
0.7
NE
6
0.6
ESE
5
0.4
NE
5
Wave Graph
Metric surfscale
Energy kJ
3
2
1
0
0
0
0
0
3
0
0
4
21
79
38
34
32
20
6
Wind (km/h)
10
SW
15
SW
20
S
25
SSW
5
WSW
30
S
5
SW
25
SW
20
S
10
S
5
S
15
E
10
S
5
WNW
20
S
20
SSW
5
WSW
25
S
15
NW
Wind State
cross-off
off
cross-off
cross-off
off
cross-off
off
cross-off
cross-off
cross-off
glassy
cross-on
cross-off
cross-off
cross-off
cross-off
glassy
cross-off
cross-off
High Tide
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
clear
clear
clear
part cloud
cloud
part cloud
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:15
7:16
7:16
7:18
7:18
7:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:50
8:49
8:46
8:45
8:45
8:43
8:42
 mm
5
Temp °C
30
31
32
32
31
31
25
28
28
28
26
27
26
26
27
27
26
27
29
Feels °C
28
32
31
33
31
29
26
29
27
27
28
28
28
28
27
27
26
25
25
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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