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Surf Forecasts:
Praia do Calhau surfForecast / Maranhao / Brazil
16 Day Weather and Surf, issued 2 pm Monday 23 Mar 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
28.8° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Praia do Calhau this week:
The most powerful waves expected at Praia do Calhau in the next 16 days are 1.0m 13s and forecast to arrive on Tuesday (Mar 24) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 9AM (Tue 24th Mar) | 3.5ft (1.0m) 13s |
Table - best surf conditions forecast for Praia do Calhau over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Moderate rain (total 16mm), heaviest on Wed morning. Warm (max 28°C on Mon afternoon, min 25°C on Wed night). Wind will be generally light. | Days 3-6 Weather Summary Heavy rain (total 38mm), heaviest during Sat morning. Warm (max 28°C on Thu afternoon, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||
Mon 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | Friday 27 | Saturday 28 | Sunday 29 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 16 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 7 | 7 | 11 | 7 | 4 | 7 | 7 | 5 | 4 | 4 | 7 | 6 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 480 | 130 | 340 | 290 | 84 | 59 | 58 | 41 | 36 | 45 | 44 | 142 | 44 | 24 | 49 | 53 | 30 | 28 | 32 | 79 | 40 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | cross- on | on | on | ||
High Tide / height (m) | 10:43PM 5.02 | 10:55AM 5.14 | 11:36PM 4.53 | 11:51AM 4.66 | 12:46AM 4.09 | 1:09PM 4.24 | 2:24AM 3.89 | 2:52PM 4.12 | 3:59AM 4.07 | 4:22PM 4.34 | 5:05AM 4.44 | 5:23PM 4.70 | 5:51AM 4.82 | ||||||||||
Low Tide / height (m) | 4:27PM 0.18 | 4:41AM 0.87 | 5:17PM 0.64 | 5:34AM 1.34 | 6:21PM 1.11 | 6:47AM 1.77 | 7:49PM 1.44 | 8:29AM 1.92 | 9:28PM 1.44 | 10:05AM 1.67 | 10:43PM 1.18 | 11:10AM 1.24 | 11:36PM 0.86 | 11:57AM 0.81 | |||||||||
Mon 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | Friday 27 | Saturday 28 | Sunday 29 | |||||||||||||||||
| Sunrise | - | - | 6:00 | - | - | 6:00 | - | - | 6:00 | - | - | 5:58 | - | - | 5:58 | - | - | 5:58 | - | - | 5:58 | ||
| Sunset | 6:06 | - | - | 6:06 | - | - | 6:06 | - | - | 6:05 | - | - | 6:05 | - | - | 6:05 | - | - | 6:04 | - | - | ||
 |  |  | |  | | | | | |  | | | | | | | | | | | |||
Rain (mm) | 1 | - | - | 2 | 2 | 4 | 2 | 3 | 2 | 1 | 4 | - | 1 | 8 | 7 | 3 | 11 | 3 | 4 | 5 | 6 | ||
| Temp. °C | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 27 | 26 | 27 | 27 | 27 | 27 | ||
| Feels °C (?) | 29 | 30 | 28 | 28 | 30 | 29 | 29 | 30 | 30 | 29 | 30 | 29 | 29 | 30 | 29 | 28 | 29 | 29 | 28 | 29 | 30 | ||
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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 Praia do Calhau 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 Praia do Calhau Surf forecast
The above surf forecast table for Praia do Calhau provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Praia do Calhau can be found by selecting the local surf guide option on the grey menu. Our Praia do Calhau 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 (Praia do Calhau) 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 Praia do Calhau 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.
Praia do Calhau is 14 km (9 miles) from the city of Itaqui. If you plan a holiday in Maranhão, look for hotels and other accommodation in Itaqui. Itaqui has rooms for a wide range of budgets as well as car hire and transport links.
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