Rags Left surfForecast / Mentawi Islands / Indonesia

information circle48hr Weather and Surf, issued 6 am Wednesday 20 May 2026 WIB
Forecast update in hr  min  s Forecast update imminent
Rags Left surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Rags Left sea temperature is
30.3° C
(Which is slightly warmer than usual)

How big are the waves at Rags Left today?

The current surf forecast for Rags Left at 2PM is: 1.1m 16s primary swell from a Southwest direction and 1.1m 12s secondary swell from a South direction (forecast issued at 06:00am May 20). The wind direction is predicted to be onshore.

Time (WIB) & DateWave HeightWave Period
Morning (20 May)3.5ft (1.0m)16s
Afternoon (20 May)3.5ft (1.1m)16s
Evening (20 May)3.5ft (1.1m)15s

Table - waves today at Rags Left. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 31mm), heaviest during Wed night. Warm (max 30°C on Wed morning, min 26°C on Thu night). Wind will be generally light.

Wednesday
20
Thursday
21
Friday
22
Sat
23
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
1 AM
Rating
(10 max)
3
3
3
3
2
3
3
3
3
3
3
3
3
3
3
2
1
1
1
1
1
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1
SW
16
1
SW
16
1
SW
16
1.1
SW
16
1.1
SW
16
1.1
SW
15
1.1
SW
15
1.1
SW
15
1.3
SW
15
1.3
SW
15
1.1
SW
15
1.1
SW
15
1.1
SW
15
1.3
SW
16
1.3
SW
16
1.2
SW
15
1.2
SW
15
1.2
SW
15
1.3
SW
15
1.4
SW
15
1.4
SW
15
1.4
SW
15
1.4
SW
15
1.4
SW
15
Wave Graph
Metric surfscale
Energy kJ
523
504
492
635
619
595
565
557
705
696
550
550
572
773
773
657
614
606
685
844
773
784
805
838
Wind (km/h)
5
ENE
5
NE
5
NNE
5
WNW
10
W
5
NW
5
N
5
NNE
5
NNE
5
NE
0
ESE
5
S
5
SW
5
SW
5
NNW
5
N
10
NW
15
NNW
15
NNW
10
NW
15
WNW
15
NW
20
NW
15
NNW
cross-off
glassy
glassy
glassy
on
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
8:17AM1.10m
8:53PM0.56m
9:08AM1.02m
9:53PM0.55m
10:03AM0.93m
11:03PM0.56m
Low Tide
1:21AM0.05m
3:11PM0.03m
2:10AM0.11m
4:05PM0.08m
3:05AM0.18m
5:02PM0.14m
clear
thunderstorm
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
thunderstorm
clear
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:16
6:16
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:15
6:15
6:15
6:15
2
1
1
3
2
1
3
3
3
2
3
2
2
1
3
Temp °C
27
27
29
30
29
28
28
27
27
27
29
28
29
28
28
27
26
27
28
28
28
28
27
27
31
31
34
35
33
33
33
32
32
32
35
33
33
32
33
31
29
30
31
31
30
30
29
29
Swell 1
Height (m)
Direction
Period (s)
1.2
S
12
1.2
S
12
1.2
S
12
1.1
S
12
1.1
SW
16
1.1
S
11
1.1
SW
15
1.1
SW
15
1.3
SW
15
1.3
SW
15
1.1
SW
15
1.1
SW
15
1.1
SW
15
1.3
SW
16
1.3
SW
16
1.2
SW
15
1.2
SW
15
1.2
SW
15
1.3
SW
15
1.4
SW
15
1.4
SW
15
1.4
SW
15
1.4
SW
15
1.4
SW
15
Energy kJ
400
400
400
330
619
272
565
557
705
696
550
550
572
773
773
657
614
606
685
844
773
784
805
838
Swell 2
Height (m)
Direction
Period (s)
1
SW
16
1
SW
16
1
SW
16
1.1
SW
16
1.1
S
12
1.1
SW
15
0.8
S
9
0.8
S
9
1
S
11
1
S
11
0.9
S
11
0.9
S
10
0.9
S
10
0.9
S
10
0.8
S
9
0.8
S
9
0.8
S
9
0.7
S
9
0.7
S
9
0.7
S
9
0.7
S
9
0.9
WNW
7
0.9
WNW
7
0.9
WNW
7
Energy kJ
523
504
492
635
319
595
101
101
229
229
178
159
151
148
110
108
106
80
79
76
76
78
91
68
Swell 3
Height (m)
Direction
Period (s)
0.4
WNW
8
0.4
WNW
8
0.3
WNW
8
0.3
WNW
8
0.3
WNW
8
0.3
WNW
8
0.7
S
11
0.7
S
11
0.3
WNW
7
0.3
WNW
7
0.2
WNW
7
0.2
WNW
7
0.2
WNW
7
0.2
WNW
7
0.2
WNW
7
0.2
WNW
7
0.2
WNW
7
0.2
WNW
7
0.4
NW
7
0.1
W
10
0.2
W
16
0.6
S
9
0.5
S
8
0.6
S
8
Energy kJ
20
20
11
11
11
11
125
123
11
10
5
5
5
5
5
5
5
5
12
2
20
55
34
51
Wind waves
Height (m)
Direction
Period (s)
0.3
NW
7
0.6
WNW
8
Energy kJ
7
39
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
Distance (km)
0
0
0
0
75
0
0
0
0
0
0
0
0
0
0
9
9
9
9
9
9
75
75
31
Best forecast wave conditions in Mentawi Islands
Rating
(10 max)
4
3
3
4
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
Best forecast wave conditions in Indonesia
Rating
(10 max)
4
4
3
4
4
4
4
3
3
4
4
3
3
4
4
4
4
4
3
4
4
4
4
4
Header Global
Rating
(10 max)
4
5
5
5
5
4
4
5
5
5
5
5
5
5
4
4
4
4
5
7
7
7
7
5
  • 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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