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Surf Forecasts:

Atins surfForecast / Maranhao / Brazil

information circle12 Day Weather and Surf, issued 2 pm Tuesday 16 Sep 2025 -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
27.5° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for Atins this week:

The most powerful waves expected at Atins in the next 12 days are 1.9m 7s and forecast to arrive on Thursday (Sep 18) at 3AM. 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+)--
Best Surf--
Most Powerful 3AM (Thu 18th Sep)6ft (1.9m) 7s

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

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

Short Range Forecast Mostly dry. Warm (max 27°C on Tue afternoon, min 25°C on Tue night). Mainly fresh winds.

Days 3-6 Weather Summary Mostly dry. Warm (max 27°C on Fri afternoon, min 25°C on Fri night). Mainly fresh winds.

Tue
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
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
See all maps
Wave Height (m) & direction (?)
1.5
NE
1.6
NE
1.6
ENE
1.7
ENE
1.9
NE
1.7
ENE
1.6
NE
1.7
NE
1.5
ENE
1.4
NE
1.6
NE
1.5
ENE
1.6
NE
1.6
NE
1.7
ENE
1.6
NE
1.7
ENE
1.7
ENE
1.4
NE
1.5
NE
1.7
ENE
Period(s) (?)667777777667666777767
Wave
Graph
(?)Metric surfscale
Energy kJ (?)141188237237314285230253217129176210161188227214237247173159261
Wind
(km/h)
30
NE
25
ENE
35
E
35
NE
35
ENE
35
E
35
ENE
35
ENE
35
E
30
NE
35
ENE
30
E
35
NE
35
ENE
35
E
30
ENE
30
ENE
35
E
30
NE
35
ENE
35
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
off		crosscrosscross-
off		crosscrosscross-
off		crosscrosscross-
off		crosscrosscross-
off		crosscrosscross-
off		crosscrosscross-
off
High Tide
/ height (m)
1:15AM
2.36
2:10PM
2.21
2:21AM
2.52
3:00PM
2.40
3:10AM
2.68
3:40PM
2.57
3:51AM
2.80
4:14PM
2.71
4:26AM
2.88
4:45PM
2.80
4:59AM
2.89
5:15PM
2.85
5:31AM
2.85
Low Tide
/ height (m)
6:56PM
0.98
7:52AM
0.65
8:06PM
0.82
8:46AM
0.51
8:56PM
0.64
9:27AM
0.39
9:37PM
0.48
10:03AM
0.31
10:13PM
0.36
10:34AM
0.26
10:46PM
0.27
11:04AM
0.25
11:18PM
0.23
11:33AM
0.29
Tue
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Sunrise--5:41--5:41--5:41--5:41--5:41--5:39--5:39
Sunset5:47--5:47--5:47--5:46--5:46--5:46--5:45--
clear
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
clear
Rain (mm)
---------------------
Temp. °C272627272627272627272627272527272627272627
Feels °C (?)252524252524252425262525252325252526262525
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for Maranhao

  1. weather stationWind Update Cross-shore wind has turned cross-on at Atins (light winds from the NE at Aeroporto Internacional de São Luís - Marechal 166 km from Atins). A 1.5m swell from the NE

    2 hours 5 minutes ago Atins
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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.

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 12 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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