20 April 2026: Tsunami Alert Issued for NE Japan

A magnitude-7.4 earthquake off the coast of Sanriku has triggered a tsunami warning. latest updates

The Box surfForecast / Valencia / Spain

information circle48hr Weather and Surf, issued 7 am Monday 20 Apr 2026 CEST
Forecast update in hr  min  s Forecast update imminent
The Box surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Box sea temperature is
16.7° C
(Which is 1.2°C warmer than normal for this time of year)
Updates in  hr  min  s Forecast update imminent
Monday
20
Tuesday
21
Wednesday
22
Thu
23
5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.2
S
0.4
SSE
0.5
S
0.5
S
0.4
S
0.2
SSW
0.2
ESE
0.3
SE
0.3
SE
0.2
ESE
0.2
ESE
0.2
ESE
0.2
ESE
0.3
SE
0.3
ESE
0.4
SSE
0.4
SSE
0.3
S
0.2
ESE
Period(s) (?)3--33333---3333333443334
Wave
Graph
(?)Metric surfscale
Energy kJ (?)000000000001110000233000
Wind
(km/h)
15
SSW
10
SSW
15
S
20
S
20
S
25
S
20
SSW
0
SW
5
S
5
SW
5
SE
15
SE
20
SSE
15
SSE
5
SSW
5
NNW
10
S
10
SSW
5
SW
10
S
15
S
20
S
10
SSW
10
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
glassglassglasscrosscrosscrosscross-
off
cross-
off
glasscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross
High Tide
/ height (m)
1:22AM
0.14
2:18AM
0.14
Low Tide
/ height (m)
3:40PM
0.01
3:50PM
0.00
4:12PM
-0.00
Monday
20
Tuesday
21
Wednesday
22
Thu
23
Sunrise-7:16-------7:15-------7:13------
Sunset-----8:39-------8:40-------8:42--
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
Rain (mm)
------------------------
Temp. °C191920212119191818181920191919181819212122212118
Feels °C (?)171717171715161817171817161718171717201919181917
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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.


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