Aan surfForecast / Lombok – South / Indonesia

information circle12 Day Weather and Surf, issued 7 am Thursday 18 Dec 2025 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
29.6° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for Aan this week:

The surf forecast for Aan over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Dec 18) at 5PM. The primary swell is predicted to be 1.2m and 15s period with a secondary swell of 0.8m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Aan in the next 12 days are 2.0m 16s and forecast to arrive on Thursday (Dec 25) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (WITA) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Thu 18th Dec)4ft (1.2m) 15s
Best Surf 2AM (Thu 25th Dec)4.5ft (1.4m) 16s
Most Powerful 5AM (Thu 25th Dec)6.5ft (2.0m) 16s

Table - best surf conditions forecast for Aan over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 20mm), heaviest during Sat afternoon. Warm (max 29°C on Thu afternoon, min 26°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 21mm), heaviest during Tue morning. Warm (max 29°C on Sun morning, min 27°C on Sun night). Wind will be generally light.

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
3
3
3
3
2
2
1
2
2
0
0
1
0
0
1
0
0
2
1
1
4
Swell
Height Map
Wave Height (m) & direction (?)
1.2
SW
1.2
SW
1.4
SW
1.3
SW
1.2
SW
0.9
SW
1.1
SW
1.2
SW
0.9
SSW
0.9
SSW
0.9
SSW
0.9
SSW
0.8
SW
1
SSW
1
SW
1.1
SW
1.1
SW
1.4
SW
1.5
SSW
1.2
SSW
1.4
SSW
Period(s) (?)161514141313121210101010151214131313131816
Wave
Graph
(?)Metric surfscale
Energy kJ (?)6836408257065032773733931711751541542622943954064127218088421042
Wind
(km/h)
5
SE
5
SE
0
NNW
5
SE
5
SW
5
WNW
5
WSW
5
W
5
NW
10
SW
20
WSW
15
W
20
W
20
WSW
15
W
20
W
20
WSW
10
W
15
WSW
15
WSW
10
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassglassglassglassglasscross-
off
crossglasscross-
off
cross-
on
cross-
on
crosscrosscrosscross-
off
crosscrosscrosscrosscross-
on
cross-
off
High Tide
/ height (m)
9:37AM
1.84
9:04PM
2.43
10:12AM
1.92
9:40PM
2.52
10:44AM
1.99
10:15PM
2.59
11:16AM
2.05
10:49PM
2.64
11:47AM
2.10
11:22PM
2.65
12:18PM
2.13
11:54PM
2.62
12:50PM
2.16
12:27AM
2.54
Low Tide
/ height (m)
2:50PM
1.03
3:55AM
0.37
3:29PM
0.95
4:28AM
0.27
4:05PM
0.88
5:01AM
0.20
4:40PM
0.83
5:32AM
0.17
5:14PM
0.81
6:03AM
0.18
5:48PM
0.82
6:34AM
0.22
6:23PM
0.84
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Sunrise5:50--5:52--5:52--5:52--5:52--5:54--5:54--
Sunset-6:30--6:30--6:30--6:30--6:31--6:31--6:32-
clear
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
Rain (mm)
-24-33152--3113526144
Temp. °C282928282928292928292928292928292927292928
Feels °C (?)323332323332333232323130313030313029313032
  • 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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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 12 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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