Aan surfForecast / Lombok – South / Indonesia

information circle16 Day Weather and Surf, issued 1 am Wednesday 20 May 2026 WITA
Forecast update in hr  min  s Forecast update imminent
Aan surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Aan sea temperature is
28.9° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Aan this week:

The surf forecast for Aan over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (May 20) at 8AM. The primary swell is predicted to be 1.4m and 12s period with a secondary swell of 0.8m and 18s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Aan in the next 16 days are 1.6m 16s and forecast to arrive on Friday (May 22) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (WITA) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Wed 20th May)4.5ft (1.4m) 12s
Best Surf 8AM (Wed 20th May)4.5ft (1.4m) 12s
Most Powerful11AM (Fri 22nd May)5ft (1.6m) 16s

Table - best surf conditions forecast for Aan over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 9mm), mostly falling on Thu afternoon. Warm (max 28°C on Wed morning, min 26°C on Wed morning). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 4mm), mostly falling on Sat night. Warm (max 28°C on Sat morning, min 26°C on Sat night). Winds increasing (light winds from the ESE on Sat morning, fresh winds from the SE by Mon afternoon).

Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
3
2
2
2
0
0
1
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
Wave
Height (m)
Direction
Period (s)
1.3
SSW
12
1.1
SW
16
1.3
SW
16
1.3
SW
16
1.3
SW
15
1.6
SW
15
1.6
SW
16
1.6
SW
15
1.6
SW
14
1.6
SW
15
1.4
SW
14
1.3
SW
14
1.1
SW
13
1
SW
13
0.9
SSW
13
0.9
SW
13
1.9
SE
7
1.9
SSE
8
1.9
SE
8
1.9
SE
8
1
SW
16
Wave Graph
Metric surfscale
Energy kJ
469
675
823
763
777
1062
1164
1062
1006
1020
799
612
458
336
299
240
383
469
418
418
496
Wind (km/h)
15
E
10
ESE
5
NNW
10
E
10
SE
10
SE
20
SE
15
SE
15
ESE
20
SE
25
SE
20
ESE
30
SE
30
SE
25
ESE
30
ESE
30
SE
25
ESE
30
ESE
35
SE
25
ESE
cross
cross
off
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
11:51AM2.95m
00:49AM2.12m
12:37PM2.76m
1:38AM2.04m
1:26PM2.51m
2:36AM1.98m
2:23PM2.22m
3:46AM1.96m
3:38PM1.96m
5:06AM2.01m
5:18PM1.79m
6:19AM2.11m
6:53PM1.77m
Low Tide
6:37PM0.03m
6:19AM0.70m
7:24PM0.23m
7:10AM0.84m
8:13PM0.45m
8:12AM1.00m
9:09PM0.66m
9:36AM1.12m
10:15PM0.84m
11:23AM1.12m
11:29PM0.95m
12:56PM0.98m
00:38AM0.98m
clear
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:20
6:20
6:20
6:20
6:20
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:00
6:00
6:00
6:00
6:00
6:00
6:00
1
1
4
3
1
2
1
Temp °C
28
28
27
28
28
27
28
28
27
28
28
27
27
28
27
27
27
27
27
27
26
31
31
30
31
31
30
30
29
30
30
30
28
27
27
26
26
24
25
25
24
23
Swell 1
Height (m)
Direction
Period (s)
1.3
SSW
12
1.2
SSW
12
1.3
SW
16
1.3
SW
16
1.3
SW
15
1.6
SW
15
1.6
SW
16
1.6
SW
15
1.6
SW
14
1.6
SW
15
1.4
SW
14
1.3
SW
14
1.1
SW
13
1
SW
13
0.9
SSW
13
0.9
SW
13
0.8
SSW
12
0.7
SW
12
0.8
SW
17
0.8
SW
18
1
SW
16
Energy kJ
469
385
823
763
777
1062
1164
1062
1006
1020
799
612
458
336
299
230
196
149
362
366
496
Swell 2
Height (m)
Direction
Period (s)
0.8
SW
16
1.1
SW
16
1
SSW
11
0.8
SE
8
0.8
SE
8
0.7
SE
8
0.6
SE
8
0.1
W
15
0.6
SE
7
0.4
SE
6
0.1
S
8
0.2
S
7
0.1
W
16
0.1
W
14
0.1
S
20
0.3
SSW
15
0.3
SW
18
0.5
SW
16
0.6
SSW
12
0.6
SSW
11
0.4
SSW
11
Energy kJ
380
675
239
95
78
60
45
4
30
14
1
4
5
4
8
42
53
130
94
87
47
Swell 3
Height (m)
Direction
Period (s)
0.5
SSE
8
0.5
SSE
7
0.8
SE
8
0.9
SSW
12
0.7
SSW
11
0.1
W
16
0.1
W
15
0.1
W
15
0.1
W
14
0.1
SW
18
0.1
W
14
0.3
SW
20
0.5
SW
15
Energy kJ
33
30
71
215
107
5
4
4
4
13
4
60
115
Wind waves
Height (m)
Direction
Period (s)
0.8
SE
7
0.7
SE
7
0.7
SE
6
1
SE
6
1.6
SE
6
1.7
SE
6
1.5
SE
6
1.6
SE
7
1.9
SE
7
1.9
SSE
8
1.9
SE
8
1.9
SE
8
1.6
SE
8
Energy kJ
65
49
36
62
188
224
177
240
383
469
418
418
276
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
4
3
3
3
3
3
3
3
2
2
2
1
1
2
2
2
2
2
Distance (km)
2
16
0
2
16
16
16
48
16
16
47
16
48
48
33
48
48
33
48
48
33
Best forecast wave conditions in South Coast of Lombok
Rating
(10 max)
3
4
4
4
3
4
3
4
3
2
1
2
2
Best forecast wave conditions in Indonesia
Rating
(10 max)
4
4
4
4
4
4
4
3
4
4
3
3
3
2
2
3
2
2
3
4
4
Header Global
Rating
(10 max)
5
5
4
4
4
4
4
5
7
5
6
9
6
5
5
4
4
5
5
5
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Aan Surf forecast

The above surf forecast table for Aan provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Aan can be found by selecting the local surf guide option on the grey menu. Our Aan surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Aan) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Aan may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Aan is 23 km (14 miles) from the city of Praya. If you plan a holiday in South Coast of Lombok, look for hotels and other accommodation in Praya. Praya has rooms for a wide range of budgets as well as car hire and transport links.

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