Utua Mamao (Atafu) Surf Break

Lat Long: 8.56° S 172.46° W

Utua Mamao (Atafu) 48 hour detailed Surf Forecast

Issued: 6 pm 18 Sep 2026 (local time)

Forecast update in  hr  min

Today's Utua Mamao (Atafu) sea temperature is
29.3°C
0.4° 

Utua Mamao (Atafu) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Utua Mamao (Atafu) today (18 Sep):

  • Afternoon surf: Afternoon surf (18 Sep, local time) - 3.5ft (1.0m), 13s period with S swell.
  • Evening surf: Evening surf (18 Sep, local time) - 3.5ft (1.0m), 13s period with S swell.

The current surf forecast for Utua Mamao (Atafu) at 11PM is: 1.0m 13s primary swell from a South direction and 0.7m 14s secondary swell from a South-southwest direction (forecast issued at 06:00pm September 18). The wind direction is predicted to be cross-onshore.

Time (+13) & DateWave HeightWave Period
Morning (18 Sep)--
Afternoon (18 Sep)3.5ft (1.0m)13s
Evening (18 Sep)3.5ft (1.0m)13s

Table - waves today at Utua Mamao (Atafu). (Swell directed towards the surf break)


Short Range Forecast

Some drizzle, heaviest during Sat night. Warm (max 28°C on Fri afternoon, min 27°C on Fri night). Wind will be generally light.

Fri
18
Saturday
19
Sunday
20
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
Rating
(10 max)
2
1
2
2
2
1
1
1
1
1
1
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
S
13
1
S
13
1
S
13
0.9
S
13
0.9
S
12
0.9
S
12
0.8
S
12
0.8
S
12
0.8
S
12
0.7
S
12
0.7
S
12
0.7
S
12
0.9
S
12
0.9
S
11
0.6
S
11
0.6
S
11
0.6
SSW
16
0.9
SSE
11
0.9
SSE
10
Wave Graph
Metric surfscale
Energy kJ
342
336
331
252
244
236
184
181
178
134
132
129
216
205
84
82
175
171
155
Wind (km/h)
10
ENE
10
ENE
10
ENE
5
ENE
5
E
10
E
10
E
10
E
10
E
10
E
10
SE
10
SE
15
SSE
20
SSE
15
SE
20
ESE
15
ESE
20
ESE
15
ESE
Wind State
cross-on
on
cross-on
glassy
glassy
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
High Tide
11:29PM0.88m
12:38PM0.76m
1:11AM0.89m
2:03PM0.81m
Low Tide
6:17AM0.51m
6:22PM0.53m
7:52AM0.47m
7:50PM0.48m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
thunderstorm
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:25
6:25
6:25
 mm
1
Temp °C
28
28
28
28
27
27
27
28
28
28
28
28
28
28
28
28
28
28
28
Feels °C
31
31
32
33
31
31
31
32
32
32
33
32
31
30
31
30
30
30
30
  • 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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