Northern Rights surfForecast / Sumbawa / Indonesia

information circle12 Day Weather and Surf, issued 7 pm Wednesday 21 Jan 2026 WITA
Forecast update in hr  min  s Forecast update imminent
Northern Rights surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Northern Rights sea temperature is
29.0° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Northern Rights this week:

The surf forecast for Northern Rights over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jan 22) at 8AM. The primary swell is predicted to be 1.5m and 16s period with a secondary swell of 0.5m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Northern Rights in the next 12 days are 1.7m 17s and forecast to arrive on Wednesday (Jan 28) at 2AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 9s period and expected on Thursday (Jan 22) at 11AM.

Wave TypeTime (WITA) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Thu 22nd Jan)5ft (1.5m) 16s
Best Surf11AM (Thu 22nd Jan)5ft (1.5m) 16s
Most Powerful 2AM (Wed 28th Jan)5.5ft (1.7m) 17s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 92mm), heaviest during Wed night. Warm (max 32°C on Sat afternoon, min 24°C on Wed night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 36mm), heaviest during Mon night. Warm (max 29°C on Mon afternoon, min 25°C on Sun night). Wind will be generally light.

Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wed
28
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
3
4
3
3
1
2
2
2
2
0
2
0
1
3
0
1
1
0
3
2
1
Swell
Height Map
Wave Height (m) & direction (?)
1.7
SSW
1.5
SSW
1.4
SSW
1.9
W
1.2
SSW
0.9
SSW
1
SSW
0.9
SSW
0.9
SSW
0.8
SSW
0.9
SSW
0.7
SSW
0.9
SSW
0.9
SSW
1.6
WSW
1.3
SSW
0.7
SSW
0.8
SSW
1.7
SSW
1.7
SSW
1.6
SSW
Period(s) (?)1716169141314141312111816169142119171615
Wave
Graph
(?)Metric surfscale
Energy kJ (?)16271136938567527307347286268167212326380357405630440497163013581103
Wind
(km/h)
5
SSW
5
SW
5
WSW
5
ENE
10
W
5
NE
5
E
0
ENE
5
WSW
5
SSW
5
NNE
20
SSW
5
SSW
5
NNE
15
SW
10
SSW
15
SW
20
SSW
10
SW
10
SSW
15
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onglassglassglasscrossglassglassglassglassonglassononoffcross-
on
onononononon
High Tide
/ height (m)
12:11AM
1.64
1:52PM
1.24
12:48AM
1.53
2:16PM
1.31
1:30AM
1.38
2:44PM
1.38
2:18AM
1.19
3:17PM
1.44
3:27AM
0.99
3:58PM
1.49
5:41AM
0.82
4:53PM
1.53
6:04PM
1.58
Low Tide
/ height (m)
7:20AM
0.21
6:51PM
0.80
7:42AM
0.31
7:42PM
0.76
8:03AM
0.43
8:43PM
0.72
8:22AM
0.55
9:59PM
0.67
8:38AM
0.67
11:45PM
0.58
8:41AM
0.77
1:43AM
0.43
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wed
28
Sunrise-6:07--6:07--6:07--6:09--6:09--6:09--6:09-
Sunset--6:39--6:39--6:39--6:39--6:39--6:39--6:39
heavy rain
heavy rain
mod rain
heavy rain
thunderstorm
thunderstorm
part cloud
part cloud
clear
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
Rain (mm)
372371474---4236259234-4
Temp. °C242525252627262932282728262829262829272829
Feels °C (?)283029272930303335303132283232293030303131
  • 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 Northern Rights Surf forecast

The above surf forecast table for Northern Rights provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Northern Rights can be found by selecting the local surf guide option on the grey menu. Our Northern Rights 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 (Northern Rights) 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 Northern Rights 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.

Northern Rights is 53 km (33 miles) from the city of Praya. If you plan a holiday in Sumbawa, 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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