Maresias surf break

Maresias surfForecast / São Paulo / Brazil

information circle48hr Weather and Surf, issued 2 pm Monday 18 May 2026 -03
Forecast update in hr  min  s Forecast update imminent
Maresias surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Maresias sea temperature is
24.0° C
(Which is 1.0°C warmer than normal for this time of year)

How big are the waves at Maresias today?

The current surf forecast for Maresias at 6PM is: 0.4m 15s primary swell from a South-southeast direction and 0.6m 10s secondary swell from a South direction, 1.0m 5s secondary swell from a Southwest direction (forecast issued at 02:00pm May 18). The wind direction is predicted to be cross-onshore.

Time (-03) & DateWave HeightWave Period
Morning (18 May)--
Afternoon (18 May)2ft (0.6m)10s
Evening (18 May)1.5ft (0.4m)15s

Table - waves today at Maresias. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 21mm), heaviest during Mon night. Warm (max 22°C on Mon afternoon, min 19°C on Tue night). Wind will be generally light.

Mon
18
Tuesday
19
Wednesday
20
Thu
21
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
6 AM
9 AM
Rating
(10 max)
0
0
0
0
0
0
0
2
1
1
3
4
4
3
4
3
3
3
3
3
3
4
3
2
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.7
S
10
0.6
S
10
0.4
SSE
15
0.4
SSE
15
1.1
SW
9
1.6
SSW
8
1.8
SSW
8
1.8
SSW
8
1.5
S
8
0.7
SSE
19
1.1
S
18
1.7
S
17
2.3
S
16
2.3
S
16
2.3
S
15
2.1
S
14
2
S
14
1.8
S
14
1.7
S
13
1.6
S
13
1.6
S
13
1.7
S
15
1.9
S
15
2.3
S
16
Wave Graph
Metric surfscale
Energy kJ
92
66
74
72
203
298
385
385
248
391
794
1769
2709
2609
2479
1822
1608
1245
1018
875
891
1212
1589
2534
Wind (km/h)
15
SW
20
SW
15
WSW
10
WSW
15
W
15
WSW
10
SW
10
WSW
10
WSW
10
WSW
10
WSW
10
WNW
10
WNW
10
W
5
W
5
W
10
WSW
10
SW
5
SW
5
SSW
5
SSW
5
SSW
5
S
10
S
cross-on
cross-on
cross-on
cross
cross
cross-on
cross-on
cross-on
cross
cross-on
cross
cross-off
cross-off
cross
cross-off
cross
cross
cross-on
cross-on
glassy
glassy
glassy
on
on
High Tide
3:58PM1.13m
3:22AM0.92m
4:42PM1.03m
3:55AM0.91m
5:29PM0.92m
4:32AM0.90m
Low Tide
9:48AM0.07m
10:52PM0.47m
10:31AM0.10m
11:39PM0.58m
11:22AM0.15m
00:31AM0.66m
part cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
rain showers
rain showers
rain showers
rain showers
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:31
6:31
6:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:25
5:24
5:24
5:24
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
2
2
Temp °C
23
22
21
20
20
20
20
20
20
20
20
19
19
19
20
20
20
20
20
20
19
19
19
19
24
23
22
21
21
20
21
22
21
21
21
20
20
20
22
22
21
21
22
23
21
21
21
20
Swell 1
Height (m)
Direction
Period (s)
0.7
S
10
0.6
S
10
0.6
S
10
0.6
S
10
0.4
SSE
14
0.4
S
13
0.4
S
13
1.6
S
8
1.5
S
8
1.5
S
8
1.5
S
8
1.7
S
17
2.3
S
16
2.3
S
16
2.3
S
15
2.1
S
14
2
S
14
1.8
S
14
1.7
S
13
1.6
S
13
1.6
S
13
1.7
S
15
1.9
S
15
2.3
S
16
Energy kJ
92
66
65
65
70
55
55
294
248
255
255
1769
2709
2609
2479
1822
1608
1245
1018
875
891
1212
1589
2534
Swell 2
Height (m)
Direction
Period (s)
0.3
SSE
16
0.3
SSE
16
0.4
SSE
15
0.4
SSE
15
0.2
E
7
0.3
SSE
16
0.3
S
16
0.5
S
13
0.4
SSE
20
0.7
SSE
19
1.1
S
18
1.5
S
8
0.7
SE
7
0.8
SE
7
0.8
SE
7
0.8
SE
6
0.9
SE
6
0.8
SE
6
0.7
SE
6
0.7
ESE
6
0.6
ESE
6
0.5
ESE
6
0.5
E
6
0.2
E
7
Energy kJ
51
50
74
72
4
50
46
83
131
391
794
256
45
57
63
58
56
45
38
32
22
18
15
4
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
5
0.1
E
7
0.1
E
7
0.1
E
7
0.2
E
7
0.2
E
7
0.3
SSE
16
0.4
SSE
15
0.5
S
15
0.7
S
14
0.2
E
7
0.2
E
7
0.2
E
7
0.2
E
7
0.2
E
8
0.2
E
7
0.2
E
8
Energy kJ
1
1
1
1
4
4
51
76
112
188
4
4
4
4
5
4
4
Wind waves
Height (m)
Direction
Period (s)
0.6
WSW
3
1.1
SW
4
1
SW
5
0.9
SW
5
1.1
SW
9
1.6
SSW
8
1.8
SSW
8
1.8
SSW
8
1
SSW
8
1.1
SE
7
0.8
SE
6
0.7
SE
6
Energy kJ
7
43
42
31
203
298
385
385
143
99
38
30
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
2
1
2
2
2
3
4
4
4
4
4
4
3
3
3
3
4
1
4
Distance (km)
66
26
58
8
26
48
48
26
26
26
13
0
0
8
0
8
22
26
26
0
0
0
44
19
Best forecast wave conditions in São Paulo
Rating
(10 max)
1
1
1
1
1
2
2
2
2
2
3
4
5
5
4
4
4
3
3
3
3
4
3
4
Best forecast wave conditions in Brazil
Rating
(10 max)
1
2
2
2
2
2
2
4
5
4
4
4
5
5
5
5
4
3
3
4
4
5
5
4
Header Global
Rating
(10 max)
5
5
4
4
4
4
4
4
5
4
5
5
5
4
5
5
4
5
5
4
4
5
5
4
  • 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

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