Utua Mamao (Atafu) Surf Break

Lat Long: 8.56° S 172.46° W

Utua Mamao (Atafu) 48 hour detailed Surf Forecast

Issued: 6 pm 19 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 (20 Sep):

  • Morning surf: Morning surf (20 Sep, local time) - 2.5ft (0.8m), 11s period with S swell.
  • Afternoon surf: Afternoon surf (20 Sep, local time) - 2ft (0.6m), 16s period with SSW swell.
  • Evening surf: Evening surf (20 Sep, local time) - 2ft (0.6m), 15s period with SSW swell.

The current surf forecast for Utua Mamao (Atafu) at 2AM is: 0.8m 12s primary swell from a South direction and 0.4m 7s secondary swell from a South-southeast direction (forecast issued at 06:00pm September 19). The wind direction is predicted to be cross-onshore.

Time (+13) & DateWave HeightWave Period
Morning (20 Sep)2.5ft (0.8m)11s
Afternoon (20 Sep)2ft (0.6m)16s
Evening (20 Sep)2ft (0.6m)15s

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


Short Range Forecast

Moderate rain (total 10mm), heaviest on Mon night. Warm (max 28°C on Sat afternoon, min 27°C on Sat night). Wind will be generally light.

Sat
19
Sunday
20
Monday
21
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
1
0
0
0
0
1
1
2
0
0
1
0
0
0
0
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
S
12
0.7
S
12
0.7
S
12
0.7
S
12
0.9
S
12
0.8
S
11
0.8
SSE
11
0.8
SSE
11
0.6
SSW
16
0.6
SSW
16
0.6
SSW
15
0.7
SW
17
0.8
SSW
17
0.8
SSW
17
0.9
SW
15
0.9
SSW
16
0.8
SSW
16
0.9
SSW
16
1.2
SSW
14
Wave Graph
Metric surfscale
Energy kJ
178
134
132
129
216
163
158
153
175
171
144
298
373
368
344
425
314
382
553
Wind (km/h)
5
E
5
E
10
ESE
10
ESE
15
SE
15
SE
10
ESE
10
E
5
ESE
5
ESE
10
SE
15
ESE
10
ESE
15
ESE
15
ESE
20
E
15
E
15
ESE
15
E
Wind State
glassy
on
on
on
cross-on
cross-on
cross-on
on
on
glassy
cross-on
on
cross-on
cross-on
cross-on
on
on
on
on
High Tide
1:11AM0.89m
2:03PM0.81m
2:17AM0.96m
2:51PM0.90m
Low Tide
7:52AM0.47m
7:50PM0.48m
8:45AM0.40m
8:43PM0.40m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
<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
6:24
 mm
1
3
Temp °C
28
28
28
28
27
27
28
28
28
28
28
28
28
28
28
28
28
28
28
Feels °C
32
31
31
31
29
29
31
31
31
32
31
31
31
31
30
30
30
31
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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