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Surf Forecasts:
Praia do Calhau surfForecast / Maranhao / Brazil
48hr Weather and Surf, issued 8 am Sunday 10 May 2026 -03Forecast update in hr min s Forecast update imminent
Praia do Calhau surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Praia do Calhau sea temperature is
29.0° C
(Which is slightly warmer than usual)How big are the waves at Praia do Calhau today?
The current surf forecast for Praia do Calhau at 2PM is: 0.4m 6s primary swell from a Northeast direction and 0.1m 11s secondary swell from a Northeast direction, 0.4m 3s secondary swell from a East-northeast direction (forecast issued at 08:00am May 10). The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 May) | 1.5ft (0.4m) | 6s |
| Afternoon (10 May) | 1.5ft (0.4m) | 6s |
| Evening (10 May) | 1.5ft (0.4m) | 6s |
Table - waves today at Praia do Calhau. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 44mm), heaviest during Sun morning. Warm (max 28°C on Sun morning, min 25°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 10 | Monday 11 | Tuesday 12 | Wed 13 | |||||||||||||||||||||
6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 9 | NE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | ENE 5 | NE 8 | |
12 | 12 | 16 | 8 | 15 | 11 | 11 | 11 | 11 | 12 | 12 | 27 | 31 | 24 | 43 | 44 | 44 | 31 | 30 | 101 | 119 | 119 | 39 | 116 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross | cross-on | cross | |
High Tide | 1:46PM4.20m | 2:36AM4.22m | 3:02PM4.38m | 3:39AM4.54m | 4:04PM4.68m | |||||||||||||||||||
Low Tide | 7:28AM1.72m | 8:10PM1.39m | 8:45AM1.50m | 9:18PM1.19m | 9:49AM1.12m | 10:14PM0.92m | ||||||||||||||||||
 | | | |  | | | | |  |  | |  | | | | | |  | | | | | | |
 | 5:52 | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 |
 | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | 5:52 |
5 | 5 | 4 | 4 | 5 | 5 | 4 | 3 | 1 | — | — | — | — | — | 3 | 4 | 2 | — | — | 1 | 1 | — | 1 | 1 | |
Temp °C | 26 | 27 | 28 | 27 | 27 | 26 | 26 | 26 | 25 | 26 | 28 | 27 | 27 | 27 | 27 | 25 | 25 | 26 | 28 | 28 | 27 | 27 | 27 | 27 |
29 | 29 | 30 | 30 | 30 | 30 | 29 | 29 | 28 | 29 | 31 | 29 | 29 | 29 | 30 | 28 | 28 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | |
Swell 1 Height (m) Direction Period (s) | NE 9 | NE 6 | NE 9 | NE 6 | NE 11 | NE 6 | NE 6 | NE 10 | NE 6 | NE 6 | NE 6 | NE 9 | NE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NE 8 | NE 8 | — | — | — | NE 8 | — |
 kJ | 3 | 12 | 3 | 8 | 4 | 11 | 11 | 4 | 11 | 12 | 12 | 27 | 31 | 24 | 43 | 44 | 44 | 31 | 30 | — | — | — | 29 | — |
Swell 2 Height (m) Direction Period (s) | NE 9 | NE 9 | NE 9 | NE 11 | N 11 | NE 9 | NE 10 | NNE 10 | NE 10 | NE 10 | NE 9 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 3 | 3 | 5 | 2 | 3 | 4 | 10 | 4 | 4 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | N 12 | — | N 11 | N 11 | — | — | — | — | — | — | N 8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | — | 2 | 2 | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 6 | — | NE 6 | ENE 3 | NE 6 | — | — | NE 6 | NE 3 | ESE 3 | — | N 9 | — | NE 3 | ENE 3 | ENE 4 | ENE 4 | ENE 4 | ENE 4 | NE 8 | NE 8 | NE 8 | ENE 5 | NE 8 |
| kJ | 12 | — | 16 | 4 | 15 | — | — | 11 | 2 | 1 | — | 2 | — | 2 | 4 | 7 | 8 | 15 | 16 | 101 | 119 | 119 | 39 | 116 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1092 | 1114 | 647 | 1326 | 647 | 609 | 609 | 647 | 173 | 173 | 173 | 2285 | 658 | 658 | 1025 | 8 | 0 | 1114 | 2270 | 2270 | 658 | 658 | 658 | 590 |
Best forecast wave conditions in Maranhão | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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