Utua Mamao (Atafu) Surf Break

Lat Long: 8.56° S 172.46° W

Utua Mamao (Atafu) 48 hour detailed Surf Forecast

Issued: 12 am 18 Sep 2026 (local time)

Forecast update in  hr  min

Today's Utua Mamao (Atafu) sea temperature is
29.5°C
0.6° 

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):

  • Morning surf: Morning surf (18 Sep, local time) - 3ft (0.9m), 14s period with S swell.
  • 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 6AM is: 0.9m 14s primary swell from a South direction and 0.8m 15s secondary swell from a South-southwest direction (forecast issued at 12:00am September 18). The wind direction is predicted to be onshore.

Time (+13) & DateWave HeightWave Period
Morning (18 Sep)3ft (0.9m)14s
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

Mostly dry. Warm (max 28°C on Thu night, min 27°C on Fri night). Wind will be generally light.

Friday
18
Saturday
19
Sunday
20
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
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
Rating
(10 max)
1
1
1
1
2
2
2
1
1
1
1
0
1
1
1
1
1
1
1
1
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SSW
14
0.9
S
14
0.9
S
14
0.9
S
14
0.9
S
13
1
S
13
1
S
13
1
S
13
0.9
S
13
0.7
SSW
14
0.7
SSW
14
0.8
S
12
0.8
S
12
0.7
S
12
0.7
S
12
0.7
S
12
0.7
S
12
0.7
S
12
0.8
S
11
0.8
S
11
0.8
SSE
11
0.6
SSW
16
0.6
SSW
16
0.6
SSW
15
Wave Graph
Metric surfscale
Energy kJ
330
324
324
297
280
342
336
331
252
193
187
184
181
136
134
132
129
132
163
151
153
175
171
144
Wind (km/h)
10
E
10
E
15
E
15
E
10
ENE
10
ENE
10
E
10
E
10
ENE
10
E
10
ENE
10
ENE
10
E
5
E
5
E
5
SE
10
SSE
5
SE
10
SE
10
SE
10
SSE
15
SE
15
ESE
15
ESE
Wind State
on
on
on
on
on
cross-on
on
on
on
on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
High Tide
10:40AM0.78m
11:29PM0.88m
12:38PM0.76m
1:11AM0.89m
2:03PM0.81m
Low Tide
4:33AM0.49m
4:35PM0.52m
6:17AM0.51m
6:22PM0.53m
7:52AM0.47m
7:50PM0.48m
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
6:20
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:25
6:25
6:25
 mm
Temp °C
28
28
28
28
28
28
28
28
28
27
27
27
28
28
28
28
27
27
27
28
28
28
28
28
Feels °C
31
31
31
31
31
31
31
31
32
30
30
30
32
32
33
33
31
31
31
32
32
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
How to use the Wavefinder 

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 Utua Mamao (Atafu) 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.


Nearest locationNearest