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Surf Forecasts:
Atins surfForecast / Maranhao / Brazil
16 Day Weather and Surf, issued 8 pm Saturday 04 Apr 2026 -03Forecast update in hr min s Forecast update imminent
Atins surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Atins sea temperature is
29.1° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Atins this week:
The surf forecast for Atins over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Apr 06) at 3PM. The primary swell is predicted to be 1.1m and 6s period with a secondary swell of 0.4m and 10s. Another secondary swell of 0.3m and 13s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Atins in the next 16 days are 1.3m 18s and forecast to arrive on Thursday (Apr 09) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Monday (Apr 06) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Mon 6th Apr) | 3.5ft (1.1m) 6s |
| Best Surf | 3PM (Mon 6th Apr) | 3.5ft (1.1m) 6s |
| Most Powerful | 9PM (Thu 9th Apr) | 4.5ft (1.3m) 18s |
Table - best surf conditions forecast for Atins over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Heavy rain (total 44mm), heaviest during Sun night. Warm (max 29°C on Sun morning, min 25°C on Sun night). Wind will be generally light. | Days 3-6 Weather Summary Heavy rain (total 32mm), heaviest during Tue night. Warm (max 29°C on Wed afternoon, min 27°C on Tue night). Wind will be generally light. | |||||||||||||||||||||
Sunday 05 | Monday 06 | Tuesday 07 | Wednesday 08 | Thursday 09 | Friday 10 | Sat 11 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 5 | 11 | 11 | 11 | 10 | 6 | 10 | 5 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 16 | 16 | 9 | 9 | 14 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 63 | 94 | 314 | 183 | 53 | 72 | 213 | 61 | 191 | 143 | 177 | 159 | 143 | 126 | 166 | 207 | 188 | 803 | 218 | 221 | 659 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross | cross | cross- off | cross- off | cross- off | cross- off | cross | cross | cross- off | cross | cross | cross | cross | cross | cross- off | cross- off | cross | cross- off | cross | |
High Tide / height (m) | 6:31AM 2.74 | 6:56PM 2.49 | 7:02AM 2.61 | 7:30PM 2.31 | 7:36AM 2.45 | 8:08PM 2.14 | 8:17AM 2.29 | 8:56PM 1.98 | 9:09AM 2.15 | 10:05PM 1.88 | 10:24AM 2.07 | 11:36PM 1.89 | 11:53AM 2.10 | |||||||||
Low Tide / height (m) | 12:20AM 0.43 | 12:45PM 0.32 | 12:51AM 0.56 | 1:20PM 0.46 | 1:24AM 0.71 | 1:59PM 0.63 | 2:01AM 0.87 | 2:46PM 0.80 | 2:49AM 1.03 | 3:50PM 0.95 | 4:01AM 1.15 | 5:15PM 1.00 | 5:37AM 1.17 | |||||||||
Sunday 05 | Monday 06 | Tuesday 07 | Wednesday 08 | Thursday 09 | Friday 10 | Sat 11 | ||||||||||||||||
| Sunrise | - | 5:50 | - | - | 5:50 | - | - | 5:50 | - | - | 5:50 | - | - | 5:50 | - | - | 5:50 | - | - | 5:50 | - | |
| Sunset | - | - | 5:54 | - | - | 5:54 | - | - | 5:54 | - | - | 5:53 | - | - | 5:53 | - | - | 5:53 | - | - | 5:52 | |
 |  |  | | |  | |  | | | | |  | | | | | | | | | ||
Rain (mm) | 14 | 2 | - | 16 | 5 | - | 5 | - | 2 | 11 | 5 | 1 | 3 | 4 | 2 | 2 | 3 | 1 | 12 | 2 | 6 | |
| Temp. °C | 27 | 29 | 29 | 27 | 26 | 27 | 27 | 29 | 28 | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | |
| Feels °C (?) | 28 | 30 | 30 | 29 | 27 | 29 | 28 | 30 | 29 | 29 | 28 | 29 | 29 | 29 | 29 | 30 | 28 | 30 | 30 | 29 | 29 | |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 Atins 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 Atins Surf forecast
The above surf forecast table for Atins provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Atins can be found by selecting the local surf guide option on the grey menu. Our Atins 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 (Atins) 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 Atins 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 Maranhão? If you are looking for accommodation near Atins, camping, hotels and holiday cottages in Maranhão, consider staying in Barreirinhas which is 24 km (15 miles) away. Alternatively, find information about places to stay and car hire in Munguba which is 63 km (39 miles) away
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