Utua Mamao (Atafu) Surf Break

Lat Long: 8.56° S 172.46° W

Utua Mamao (Atafu) 48 hour detailed Surf Forecast

Issued: 6 am 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Utua Mamao (Atafu) sea temperature is
29.3° 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 (20 Aug):

  • Morning surf: Morning surf (20 Aug, local time) - 3ft (0.9m), 15s period with SSW swell.
  • Afternoon surf: Afternoon surf (20 Aug, local time) - 3ft (0.9m), 15s period with SSW swell.
  • Evening surf: Evening surf (20 Aug, local time) - 3.5ft (1.0m), 14s period with SSW swell.

The current surf forecast for Utua Mamao (Atafu) at 1PM is: 0.9m 15s primary swell from a South-southwest direction and 0.6m 8s secondary swell from a East-southeast direction, 1.0m 5s secondary swell from a East-southeast direction (forecast issued at 06:00am August 20). The wind direction is predicted to be cross-onshore.

Time (+13) & DateWave HeightWave Period
Morning (20 Aug)3ft (0.9m)15s
Afternoon (20 Aug)3ft (0.9m)15s
Evening (20 Aug)3.5ft (1.0m)14s

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


Short Range Forecast

Moderate rain (total 14mm), heaviest on Sat night. Warm (max 28°C on Thu afternoon, min 27°C on Thu morning). Mainly fresh winds.

Thursday
20
Friday
21
Saturday
22
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)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SSW
15
0.9
SSW
16
0.9
SSW
15
0.9
SSW
15
1
SSW
15
1
SSW
14
1
SSW
14
1.1
SSW
14
1.1
SSW
14
0.9
SSW
12
1
SSW
12
1.2
SSW
13
1.1
SSW
13
1.8
ESE
7
1.9
SE
7
2
SE
7
2
SE
7
2.1
SE
7
2.1
SE
7
2.1
SE
7
2.1
SE
8
2.1
SE
7
2.2
SE
7
Wave Graph
Metric surfscale
Energy kJ
414
419
414
398
455
437
413
474
487
222
278
426
444
282
379
423
423
456
465
465
478
456
521
Wind (km/h)
20
ESE
25
SE
25
ESE
25
SE
30
SE
30
ESE
30
ESE
30
ESE
30
SE
35
ESE
35
ESE
30
ESE
30
ESE
30
ESE
30
ESE
35
ESE
35
SE
35
ESE
35
ESE
35
ESE
30
ESE
35
ESE
35
ESE
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
11:34AM0.82m
00:23AM0.91m
1:13PM0.79m
1:49AM0.93m
2:31PM0.83m
Low Tide
5:25AM0.49m
5:33PM0.50m
7:02AM0.50m
7:06PM0.51m
8:27AM0.46m
8:23PM0.46m
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
part cloud
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:37
6:37
6:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:29
6:29
6:29
 mm
1
1
2
2
1
1
Temp °C
27
27
27
27
28
28
27
27
27
27
28
28
28
28
28
27
27
27
27
28
28
27
27
Feels °C
28
27
26
26
26
26
25
25
24
24
25
26
26
26
27
25
26
26
25
27
27
26
26
  • 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