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Surf Forecasts:

Atins surfForecast / Maranhao / Brazil

information circle16 Day Weather and Surf, issued 2 am Saturday 14 Mar 2026 -03
Forecast 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
28.9° 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 Thursday (Mar 19) at 3AM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.2m and 13s. 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 0.6m 18s and forecast to arrive on Saturday (Mar 21) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Thu 19th Mar)3ft (0.9m) 8s
Best Surf 3AM (Thu 19th Mar)3ft (0.9m) 8s
Most Powerful 9AM (Sat 21st Mar)2ft (0.6m) 18s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table

Short Range Forecast Heavy rain (total 30mm), heaviest during Sat night. Warm (max 28°C on Sat morning, min 26°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 40mm), heaviest during Wed night. Warm (max 28°C on Tue morning, min 24°C on Thu night). Wind will be generally light.

Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.9
NNE
0.9
NNE
1.1
NNE
1.1
NNE
1.1
NNE
1.1
NNE
1
NNE
1.1
NNE
1
NNE
1
NNE
1.1
NNE
1
NNE
0.9
NNE
1
NNE
1
NNE
0.9
NNE
1.2
NNE
1.1
NNE
0.9
NNE
0.9
NNE
0.9
NNE
Period(s) (?)999999988888888889998
Wave
Graph
(?)Metric surfscale
Energy kJ (?)149149193168172176141160143143161119107134128125181176111134101
Wind
(km/h)
15
NE
15
NNE
20
NNE
10
NE
15
NNE
15
NE
15
NE
15
NE
20
NNE
15
ENE
20
NE
15
NE
20
ENE
15
NE
15
ENE
5
ESE
10
N
5
NNW
10
WSW
10
NNW
10
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
on		cross-
on		crosscross-
on		crosscross-
on		cross-
on		cross-
on		crosscrosscrosscrosscrosscrossglassononcrossoncross-
off
High Tide
/ height (m)
1:58PM
2.24
2:41AM
2.18
2:47PM
2.47
3:20AM
2.42
3:28PM
2.70
3:54AM
2.65
4:05PM
2.90
4:28AM
2.85
4:42PM
3.03
5:03AM
3.00
5:20PM
3.10
5:38AM
3.08
5:59PM
3.07
Low Tide
/ height (m)
8:26PM
0.74
8:35AM
0.84
9:07PM
0.54
9:17AM
0.62
9:44PM
0.35
9:55AM
0.40
10:19PM
0.20
10:32AM
0.22
10:53PM
0.09
11:09AM
0.08
11:29PM
0.05
11:47AM
0.00
12:05AM
0.08
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Sunrise5:56--5:56--5:56--5:54--5:54--5:54--5:54--
Sunset-6:02--6:02--6:02--6:01--6:01--6:01--6:00-
thunderstorm
part cloud
rain showers
thunderstorm
thunderstorm
rain showers
thunderstorm
clear
thunderstorm
thunderstorm
part cloud
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
cloud
rain showers
thunderstorm
thunderstorm
thunderstorm
Rain (mm)
2-102174-41-121218-6523
Temp. °C282827272727282827282827282827272726272726
Feels °C (?)303029292930303029302928303029313029302929
  • 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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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.

View detailed surf forecast for Atins at:
surf-forecast.com

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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