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

Sumba Surf Forecast

Basic // Advanced
◀
6am Thu 17 Jul
3-4ft SW 3kt E
(Overhead)
1.4m @ 12.3s SW (216°)
0.5m @ 18.9s SW (214°)
0.2m @ 4.7s ESE (104°)
12pm Thu 17 Jul
3-4ft SW 7kt SSW
(Overhead)
1.4m @ 12.2s SW (215°)
0.6m @ 18s SW (214°)
0.2m @ 4.6s ESE (104°)
6pm Thu 17 Jul
3-4ft SW 4kt SE
(Overhead)
1.4m @ 12.2s SW (214°)
0.8m @ 17.6s SW (214°)
6am Fri 18 Jul
3ft SSW 2kt ENE
(Head High)
1.2m @ 12.1s SSW (213°)
1.0m @ 16s SW (214°)
0.8m @ 19.9s SSW (211°)
12pm Fri 18 Jul
3-4ft SW 6kt SSW
(Overhead)
1.2m @ 15.9s SW (214°)
1.2m @ 12.1s SSW (212°)
0.8m @ 19.5s SSW (210°)
6pm Fri 18 Jul
6ft+ SSW 4kt SE
(2x Overhead)
2.0m @ 17.5s SSW (212°)
6am Sat 19 Jul
6ft+ SW 3kt ENE
(2x Overhead)
2.1m @ 16.2s SW (214°)
0.4m @ 5.9s S (180°)
12pm Sat 19 Jul
6ft+ SW 7kt SSW
(2x Overhead)
2.1m @ 16.2s SW (214°)
0.4m @ 5.8s S (177°)
6pm Sat 19 Jul
6ft+ SW 5kt ESE
(2x Overhead)
2.1m @ 16.1s SW (215°)
0.3m @ 5.7s S (172°)

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
Thu 6am
Thu 12pm
Thu 6pm
Fri 6am
Fri 12pm
Fri 6pm
Sat 6am
Sat 12pm
Sat 6pm
Wave Height & Swell Direction
Swell Train Data
Wind Speed & Direction
A
E 3kt
A
SSW 7kt
A
SE 4kt
A
ENE 2kt
A
SSW 6kt
A
SE 4kt
A
ENE 3kt
A
SSW 7kt
A
ESE 5kt
Tide Times & Weather
Mostly sunny 20°C // 27°C
Mostly cloudy 20°C // 27°C
Mostly sunny 21°C // 28°C
▶

Surf Forecast Swell Train Analysis

Date
Surf
Wind
Primary Swell
Secondary Swell
Tertiary Swell
-
Thu 17/07
12am
3-4ft
E 3kt
1.4 m
12.5s 220 (SW)
0.3 m
19.8s 214 (SW)
0.4 m
5.5s 182 (S)
6am
3-4ft
E 3kt
1.4 m
12.3s 216 (SW)
0.5 m
18.9s 214 (SW)
0.2 m
4.7s 104 (ESE)
12pm
3-4ft
SSW 7kt
1.4 m
12.2s 215 (SW)
0.6 m
18s 214 (SW)
0.2 m
4.6s 104 (ESE)
6pm
3-4ft
SE 4kt
1.4 m
12.2s 214 (SW)
0.8 m
17.6s 214 (SW)
+
Thu 17/07
3-4ft
SSW 7kt
1.4 m
12.2s 215 (SW)
0.6 m
18s 214 (SW)
0.2 m
4.6s 104 (ESE)
-
Fri 18/07
12am
3ft
ENE 3kt
1.3 m
12.2s 214 (SW)
0.9 m
16.5s 215 (SW)
0.4 m
21.5s 210 (SSW)
6am
3ft
ENE 2kt
1.2 m
12.1s 213 (SSW)
1.0 m
16s 214 (SW)
0.8 m
19.9s 211 (SSW)
12pm
3-4ft
SSW 6kt
1.2 m
15.9s 214 (SW)
1.2 m
12.1s 212 (SSW)
0.8 m
19.5s 210 (SSW)
6pm
6ft+
SE 4kt
2.0 m
17.5s 212 (SSW)
+
Fri 18/07
3-4ft
SSW 6kt
1.2 m
15.9s 214 (SW)
1.2 m
12.1s 212 (SSW)
0.8 m
19.5s 210 (SSW)
-
Sat 19/07
12am
6ft
ENE 4kt
2.0 m
16.4s 214 (SW)
0.4 m
5.8s 182 (S)
0.2 m
2.8s 143 (SE)
6am
6ft+
ENE 3kt
2.1 m
16.2s 214 (SW)
0.4 m
5.9s 180 (S)
12pm
6ft+
SSW 7kt
2.1 m
16.2s 214 (SW)
0.4 m
5.8s 177 (S)
6pm
6ft+
ESE 5kt
2.1 m
16.1s 215 (SW)
0.3 m
5.7s 172 (S)
+
Sat 19/07
6ft+
SSW 7kt
2.1 m
16.2s 214 (SW)
0.4 m
5.8s 177 (S)
  • bulletin_datetime_utc => 2025-07-16 00:00:00
  • location_identifier => 188
  • timezone => Asia/Jakarta
Event Off For The Day
Corona Cero Open J-Bay