Premium ad-free surfcams, dawn surf reports, forecaster notes, long range surf forecasts... Get Swellnet PRO for $7.33 per month Premium ad-free surfcams, dawn surf reports, and more... Get Swellnet PRO for $7.33 per month

Check the 16-day forecast with Swellnet Pro for $8.95/month

Nias Surf Forecast

Basic // Advanced
◀
6am Mon 18 Aug
3-4ft SSW 3kt NNW
(Overhead)
1.6m @ 13.2s SSW (201°)
0.5m @ 7.2s WNW (286°)
0.2m @ 17.9s SW (218°)
12pm Mon 18 Aug
3-4ft SSW 3kt NW
(Overhead)
1.5m @ 12.9s SSW (201°)
0.3m @ 17.7s SW (217°)
0.5m @ 7.3s WNW (286°)
6pm Mon 18 Aug
3ft SSW 4kt NW
(Head High)
1.4m @ 12.5s SSW (200°)
0.4m @ 16.6s SW (217°)
0.5m @ 7.3s WNW (286°)
6am Tue 19 Aug
2-3ft SSW 4kt N
(Shoulder-Head High)
1.1m @ 12.5s SSW (210°)
0.5m @ 16.1s SW (217°)
0.6m @ 9.2s SSE (168°)
12pm Tue 19 Aug
3ft SSW 5kt NW
(Head High)
1.2m @ 14.8s SSW (212°)
0.5m @ 9.1s SSE (167°)
0.5m @ 7.2s WNW (285°)
6pm Tue 19 Aug
3ft SSW 4kt NW
(Head High)
1.2m @ 14.7s SSW (213°)
0.5m @ 8.9s SSE (166°)
0.4m @ 7.2s WNW (285°)
6am Wed 20 Aug
3ft SSW 2kt NNW
(Head High)
1.3m @ 13.9s SSW (209°)
0.2m @ 19.6s SSW (207°)
0.4m @ 7.1s WNW (285°)
12pm Wed 20 Aug
3ft SSW 3kt WNW
(Head High)
1.3m @ 13.5s SSW (209°)
0.4m @ 7s WNW (285°)
6pm Wed 20 Aug
3ft SSW 2kt W
(Head High)
1.3m @ 13.5s SSW (210°)
0.4m @ 7s WNW (285°)

This is premium content for Swellnet Pro subscribers WHY?

Become a subscriber and receive access to ad-free 16 day surf forecasts and charts, detailed surf forecaster notes, dawn surf reports and premium, ad-free surfcams and replays.

Get Swellnet Pro
Mon 6am
Mon 12pm
Mon 6pm
Tue 6am
Tue 12pm
Tue 6pm
Wed 6am
Wed 12pm
Wed 6pm
Wave Height & Swell Direction
Swell Train Data
Wind Speed & Direction
A
NNW 3kt
A
NW 3kt
A
NW 4kt
A
N 4kt
A
NW 5kt
A
NW 4kt
A
NNW 2kt
A
WNW 3kt
A
W 2kt
Tide Times & Weather
Mostly cloudy 25°C // 30°C
Mostly cloudy 25°C // 30°C
Late thunder 25°C // 30°C
▶

Surf Forecast Swell Train Analysis

Date
Surf
Wind
Primary Swell
Secondary Swell
Tertiary Swell
-
Mon 18/08
12am
4ft
NW 3kt
1.7 m
13.4s 202 (SSW)
0.5 m
7.2s 286 (WNW)
0.2 m
17.9s 218 (SW)
6am
3-4ft
NNW 3kt
1.6 m
13.2s 201 (SSW)
0.5 m
7.2s 286 (WNW)
0.2 m
17.9s 218 (SW)
12pm
3-4ft
NW 3kt
1.5 m
12.9s 201 (SSW)
0.3 m
17.7s 217 (SW)
0.5 m
7.3s 286 (WNW)
6pm
3ft
NW 4kt
1.4 m
12.5s 200 (SSW)
0.4 m
16.6s 217 (SW)
0.5 m
7.3s 286 (WNW)
+
Mon 18/08
3-4ft
NW 3kt
1.5 m
12.9s 201 (SSW)
0.3 m
17.7s 217 (SW)
0.5 m
7.3s 286 (WNW)
-
Tue 19/08
12am
2-3ft
N 3kt
1.1 m
12.4s 209 (SSW)
0.5 m
16.3s 217 (SW)
0.6 m
9.3s 168 (SSE)
6am
2-3ft
N 4kt
1.1 m
12.5s 210 (SSW)
0.5 m
16.1s 217 (SW)
0.6 m
9.2s 168 (SSE)
12pm
3ft
NW 5kt
1.2 m
14.8s 212 (SSW)
0.5 m
9.1s 167 (SSE)
0.5 m
7.2s 285 (WNW)
6pm
3ft
NW 4kt
1.2 m
14.7s 213 (SSW)
0.5 m
8.9s 166 (SSE)
0.4 m
7.2s 285 (WNW)
+
Tue 19/08
3ft
NW 5kt
1.2 m
14.8s 212 (SSW)
0.5 m
9.1s 167 (SSE)
0.5 m
7.2s 285 (WNW)
-
Wed 20/08
12am
3ft
NW 2kt
1.2 m
14.5s 212 (SSW)
0.4 m
7.2s 285 (WNW)
0.4 m
8.4s 165 (SSE)
6am
3ft
NNW 2kt
1.3 m
13.9s 209 (SSW)
0.2 m
19.6s 207 (SSW)
0.4 m
7.1s 285 (WNW)
12pm
3ft
WNW 3kt
1.3 m
13.5s 209 (SSW)
0.4 m
7s 285 (WNW)
6pm
3ft
W 2kt
1.3 m
13.5s 210 (SSW)
0.4 m
7s 285 (WNW)
+
Wed 20/08
3ft
WNW 3kt
1.3 m
13.5s 209 (SSW)
0.4 m
7s 285 (WNW)
  • bulletin_datetime_utc => 2025-08-17 12:00:00
  • location_identifier => 198
  • timezone => Asia/Jakarta