El Martillo surfForecast / South / Uruguay

information circle16 Day Weather and Surf, issued 8 am Saturday 18 Apr 2026 -03
Forecast update in hr  min  s Forecast update imminent
El Martillo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's El Martillo sea temperature is
20.9° C
(Which is 2.7°C warmer than normal for this time of year)

Best Forecast Surf Conditions for El Martillo this week:

The surf forecast for El Martillo over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Apr 18) at 9PM. The primary swell is predicted to be 1.0m and 7s period with a secondary swell of 0.3m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at El Martillo in the next 16 days are 1.2m 11s and forecast to arrive on Monday (Apr 20) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Saturday (Apr 18) at 3PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sat 18th Apr)3.5ft (1.0m) 7s
Best Surf 9PM (Sat 18th Apr)3.5ft (1.0m) 7s
Most Powerful 6PM (Mon 20th Apr)4ft (1.2m) 11s

Table - best surf conditions forecast for El Martillo over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 2mm), mostly falling on Mon night. Warm (max 22°C on Sun afternoon, min 18°C on Sat night). Mainly fresh winds.

Days 3-6 Weather Summary Light rain (total 7mm), mostly falling on Tue morning. Warm (max 21°C on Tue afternoon, min 15°C on Thu night). Winds decreasing (fresh winds from the W on Wed morning, calm by Thu night).

Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.3
S
1
S
0.9
S
0.6
S
0.5
S
0.7
SSE
0.6
ESE
1.1
SE
0.7
SE
0.7
SE
1.2
ESE
0.9
ESE
0.8
ESE
0.8
ESE
0.6
ESE
0.6
S
0.6
SSW
0.7
SSW
0.6
S
0.8
S
0.8
SSE
Period(s) (?)78777811111111106778665988
Wave
Graph
(?)Metric surfscale
Energy kJ (?)186111863625587927812111929159505445282823558277
Wind
(km/h)
25
WSW
30
WSW
5
W
15
WNW
15
SW
10
E
15
E
25
E
20
ENE
15
ESE
25
ENE
20
NNE
25
W
25
WSW
5
S
15
S
15
SSE
10
SE
5
NNW
10
SSE
10
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
offoffcross-
off
oncross-
on
oncross-
on
oncross-
on
crossoffcross-
off
cross-
on
cross-
on
cross-
on
onglasscross-
on
cross
High Tide
/ height (m)
2:00PM
0.20
8:19PM
0.42
9:19AM
0.25
2:57PM
0.20
9:08PM
0.45
10:04AM
0.24
3:48PM
0.19
9:59PM
0.45
10:50AM
0.23
4:32PM
0.18
10:50PM
0.44
11:37AM
0.22
5:12PM
0.18
11:44PM
0.40
12:29PM 5:48PM
0.22 0.18
12:43AM
0.36
1:27PM
0.22
6:20PM 1:48AM
0.19 0.32
Low Tide
/ height (m)
11:49AM
0.18
3:50PM
0.19
4:46AM
-0.04
12:28PM 4:34PM
0.17 0.19
5:39AM
-0.04
1:09PM 5:23PM
0.15 0.18
6:33AM
-0.03
1:53PM
0.14
6:16PM
0.17
7:28AM
-0.01
2:38PM
0.14
7:15PM
0.16
8:23AM
0.02
3:27PM
0.15
8:17PM
0.14
9:19AM
0.05
4:22PM
0.17
9:24PM
0.13
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Sunrise7:05--7:05--7:07--7:07--7:07--7:09--7:09--
Sunset-6:12--6:10--6:08--6:07--6:07--6:06--6:05-
clear
clear
clear
part cloud
clear
clear
part cloud
cloud
light rain
rain showers
cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
Rain (mm)
--------27-----------
Temp. °C202019202220192019192121181618181817161716
Feels °C (?)161618192121181817171919151117161616161614
  • 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 El Martillo Surf forecast

The above surf forecast table for El Martillo provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at El Martillo can be found by selecting the local surf guide option on the grey menu. Our El Martillo 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 (El Martillo) 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 El Martillo 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.

Are you planning a holiday in Uruguay - South? If you are looking for accommodation near El Martillo, camping, hotels and holiday cottages in Uruguay - South, consider staying in Maldonado which is 8 km (5 miles) away. Other places in and around Uruguay - South where you can find information about places to rent, and car hire include San Carlos which is 19 km (12 miles) away, Minas, Rocha and La Paloma.

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