Northern Rights surfForecast / Sumbawa / Indonesia

information circle12 Day Weather and Surf, issued 7 am Thursday 11 Dec 2025 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
29.6° C
(Which is slightly warmer than usual)


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 (Dec 11) at 2PM. The primary swell is predicted to be 0.6m and 14s period with a secondary swell of 0.6m and 9s. 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 1.1m 14s and forecast to arrive on Saturday (Dec 13) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Saturday (Dec 13) at 2PM.

Wave TypeTime (WITA) & Date Wave Height & Period
Next good surf (1 star+) 2PM (Thu 11th Dec)2ft (0.6m) 14s
Best Surf 8PM (Thu 11th Dec)2ft (0.6m) 14s
Most Powerful 2AM (Sat 13th Dec)3.5ft (1.1m) 14s

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 21mm), heaviest during Fri afternoon. Warm (max 29°C on Fri afternoon, min 26°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 69mm), heaviest during Mon night. Warm (max 28°C on Sun morning, min 25°C on Mon night). Wind will be generally light.

Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
1
2
2
2
2
2
2
1
1
1
1
1
0
0
0
0
1
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.6
SSW
0.8
SSW
0.8
SSW
0.9
SSW
0.9
SSW
1.1
SSW
0.9
SSW
0.9
SSW
0.9
SSW
0.9
SSW
0.9
SSW
0.8
SSW
0.8
SSW
0.8
SSW
0.8
SSW
0.7
SSW
0.6
SSW
0.4
SW
0.4
SSW
0.5
SW
0.6
SSW
Period(s) (?)141114131314131312121212121111111118161616
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1651332072492464273032942172062101611531431431079581103129164
Wind
(km/h)
5
NNE
5
NW
0
NE
10
NNE
10
N
10
NE
15
NNE
10
NE
0
SE
0
SSW
5
NNW
0
ENE
5
W
10
SSW
5
SSW
10
SSW
10
SSW
0
SSE
5
SW
10
SW
10
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassglassglassoffoffoffoffoffglassglassglassglassglassononononglassononon
High Tide
/ height (m)
5:23PM
1.20
3:23AM
1.17
6:06PM
1.29
5:12AM
1.01
6:43PM
1.37
7:13AM
0.94
7:15PM
1.44
8:52AM
0.94
7:46PM
1.50
10:03AM
0.98
8:15PM
1.55
10:53AM
1.01
8:47PM
1.59
Low Tide
/ height (m)
9:51AM
0.40
10:15PM
0.99
10:33AM
0.54
12:40AM
0.88
11:15AM
0.66
2:06AM
0.72
11:58AM
0.76
2:54AM
0.55
12:44PM
0.84
3:30AM
0.40
1:31PM
0.89
4:03AM
0.28
2:14PM
0.92
4:35AM
0.18
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Sunrise5:47--5:47--5:48--5:48--5:48--5:48--5:48--
Sunset-6:23--6:23--6:24--6:24--6:25--6:27--6:27-
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
Rain (mm)
221-53-533165-723267-37
Temp. °C282827282927292928282826282825282826282927
Feels °C (?)323232313231313033333330323230313029323230
  • 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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