Monte Hermoso surf break

Monte Hermoso surfForecast / Buenos Aires / Argentina

information circle12 Day Weather and Surf, issued 2 pm Friday 12 Dec 2025 -03
Forecast update in hr  min  s Forecast update imminent
Monte Hermoso surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Monte Hermoso sea temperature is
21.4° C
(Which is 3.2°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Monte Hermoso this week:

The surf forecast for Monte Hermoso over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Dec 14) at 3AM. The primary swell is predicted to be 0.5m and 9s period with a secondary swell of 0.5m and 5s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Monte Hermoso in the next 12 days are 1.2m 9s and forecast to arrive on Tuesday (Dec 16) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Wednesday (Dec 17) at 12AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Sun 14th Dec)1.5ft (0.5m) 9s
Best Surf 3AM (Sun 14th Dec)1.5ft (0.5m) 9s
Most Powerful12AM (Tue 16th Dec)4ft (1.2m) 9s

Table - best surf conditions forecast for Monte Hermoso over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 28°C on Fri afternoon, min 16°C on Sun night). Winds increasing (light winds from the NNW on Fri night, fresh winds from the SW by Mon morning).

Days 3-6 Weather Summary Mostly dry. Warm (max 31°C on Thu morning, min 16°C on Mon night). Winds increasing (light winds from the SW on Wed afternoon, strong winds from the NW by Thu morning).

Fri
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
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 (?)
0.4
ESE
0.4
ESE
0.4
ESE
0.9
S
0.6
S
0.8
SW
0.9
S
0.6
S
1.6
SSW
1.4
S
1.2
S
0.8
SSE
0.9
SSE
0.8
SSE
0.5
S
0.5
S
0.4
SSE
0.3
SSE
0.4
SSE
0.3
SSE
0.2
S
Period(s) (?)121111784611569811101099912108
Wave
Graph
(?)Metric surfscale
Energy kJ (?)5548478240205581133146220942061314643281645186
Wind
(km/h)
30
WSW
35
WSW
30
WSW
15
SSE
25
NE
25
SW
20
SE
25
NE
35
SW
25
S
15
SSE
25
SSW
15
SE
35
NNE
35
NNW
10
SW
40
N
40
NW
25
NNW
10
NNW
25
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrossoncross-
off
cross-
on
cross-
on
cross-
off
cross-
on
oncross-
on
cross-
on
cross-
on
offcross-
off
cross-
on
offcross-
off
cross-
off
cross-
off
cross
High Tide
/ height (m)
11:43PM
1.90
11:45AM
1.87
12:30AM
1.89
12:39PM
1.73
1:17AM
1.87
1:37PM
1.63
2:05AM
1.86
2:38PM
1.57
2:53AM
1.86
3:40PM
1.55
3:43AM
1.87
4:38PM
1.56
4:33AM
1.90
Low Tide
/ height (m)
5:31PM
0.11
5:56AM
0.47
6:16PM
0.23
6:51AM
0.48
7:01PM
0.36
7:47AM
0.48
7:48PM
0.49
8:43AM
0.46
8:38PM
0.59
9:39AM
0.43
9:31PM
0.67
10:33AM
0.38
10:25PM
0.70
11:26AM
0.33
Fri
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Sunrise--5:33--5:33--5:33--5:33--5:33--5:33--5:33
Sunset8:23--8:24--8:25--8:25--8:27--8:28--8:28--
clear
part cloud
part cloud
part cloud
part cloud
cloud
cloud
clear
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
clear
clear
Rain (mm)
---------------------
Temp. °C282621232020201819191716191930302531332624
Feels °C (?)221914191314171311121210141224272125282119
  • Map Icons:
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  • 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 Monte Hermoso Surf forecast

The above surf forecast table for Monte Hermoso provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Monte Hermoso can be found by selecting the local surf guide option on the grey menu. Our Monte Hermoso 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 (Monte Hermoso) 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 Monte Hermoso 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.

Monte Hermoso is 69 km (43 miles) from the city of Punta Alta. If you plan a holiday in Provincia de Buenos Aires, look for hotels and other accommodation in Punta Alta. Punta Alta has rooms for a wide range of budgets as well as car hire and transport links.

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