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Luna Roja surfForecast / Buenos Aires / Argentina
12 Day Weather and Surf, issued 8 am Tuesday 16 Sep 2025 -03
Best Forecast Surf Conditions for Luna Roja this week:
The surf forecast for Luna Roja over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 17) at 6AM. The primary swell is predicted to be 1.0m and 13s period with a secondary swell of 0.5m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Luna Roja in the next 12 days are 1.3m 14s and forecast to arrive on Tuesday (Sep 16) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Tuesday (Sep 16) at 6PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Wed 17th Sep) | 3.5ft (1.0m) 13s |
| Best Surf | 6AM (Wed 17th Sep) | 3.5ft (1.0m) 13s |
| Most Powerful | 3PM (Tue 16th Sep) | 4.5ft (1.3m) 14s |
Table - best surf conditions forecast for Luna Roja over the next 12 days.
Short Range Forecast Mostly dry. Very mild (max 19°C on Tue afternoon, min 10°C on Wed night). Winds increasing (light winds from the NW on Wed morning, fresh winds from the NE by Thu afternoon). | Days 3-6 Weather Summary Heavy rain (total 74mm), heaviest during Sat afternoon. Very mild (max 18°C on Fri afternoon, min 8°C on Sun night). Winds increasing (light winds from the NNW on Fri morning, strong winds from the SE by Sat afternoon). | ||||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 14 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 11 | 7 | 10 | 8 | 9 | 9 | 6 | 6 | 6 | 6 | 6 | 6 | 7 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 581 | 702 | 418 | 336 | 241 | 152 | 114 | 67 | 59 | 43 | 73 | 82 | 71 | 61 | 106 | 110 | 144 | 126 | 76 | 80 | 73 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | off | cross- on | cross- on | cross | cross | cross- off | off | off | on | cross- on | on | cross- on | cross- on | cross- on | cross | cross- on | cross- on | on |
High Tide / height (m) | 1:50PM 1.31 | 3:11AM 0.85 | 2:59PM 1.28 | 4:21AM 0.83 | 4:09PM 1.27 | 5:22AM 0.86 | 5:12PM 1.28 | 6:12AM 0.90 | 6:09PM 1.28 | 6:55AM 0.95 | 6:59PM 1.28 | 7:34AM 1.02 | 7:46PM 1.26 | ||||||||
Low Tide / height (m) | 9:36PM 0.17 | 8:54AM 0.56 | 10:48PM 0.19 | 10:07AM 0.55 | 11:54PM 0.20 | 11:20AM 0.52 | 12:51AM 0.20 | 12:24PM 0.47 | 1:38AM 0.21 | 1:18PM 0.41 | 2:18AM 0.23 | 2:06PM 0.35 | 2:53AM 0.27 | ||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||||
| Sunrise | 6:50 | - | - | 6:48 | - | - | 6:46 | - | - | 6:45 | - | - | 6:43 | - | - | 6:41 | - | - | 6:39 | - | - |
| Sunset | - | 6:40 | - | - | 6:42 | - | - | 6:43 | - | - | 6:44 | - | - | 6:45 | - | - | 6:45 | - | - | 6:45 | - |
 |  |  | |  | | | |  |  |  |  |  | | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | 4 | 1 | 7 | 24 | 29 | 9 | - | - | - | - | - | - |
| Temp. °C | 16 | 19 | 17 | 18 | 19 | 12 | 14 | 15 | 14 | 15 | 18 | 14 | 12 | 12 | 10 | 9 | 9 | 9 | 8 | 8 | 8 |
| Feels °C (?) | 13 | 16 | 15 | 18 | 18 | 8 | 12 | 11 | 11 | 13 | 19 | 13 | 9 | 5 | 3 | 1 | 1 | 2 | 1 | 2 | 5 |
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Recent Eyeball Surf Reports for Buenos Aires
The wind is still cross-off at Luna Roja (light winds from the NNW at Comandante Nicanor Otamendi, Republica de Dubai wx 11 km from Luna Roja). 1.4m 14s groundswell from the ESE with a 0.7m 7s swell from the ENE. 2 swells combining to make bigger set waves.
2 h 37 min ago
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 Luna Roja 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 Luna Roja Surf forecast
The above surf forecast table for Luna Roja provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Luna Roja can be found by selecting the local surf guide option on the grey menu. Our Luna Roja 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 (Luna Roja) 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 Luna Roja 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 Provincia de Buenos Aires? If you are looking for accommodation near Luna Roja, camping, hotels and holiday cottages in Provincia de Buenos Aires, consider staying in Mar del Plata which is 20 km (12 miles) away.
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