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Surf Forecasts:
Northern Rights surfForecast / Sumbawa / Indonesia
48hr Weather and Surf, issued 1 pm Thursday 18 Sep 2025 WITA
How big are the waves at Northern Rights today?
The current surf forecast for Northern Rights at 4PM is: 1.4m 14s primary swell from a South-southwest direction (forecast issued at 01:00pm September 18). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (WITA) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 5ft (1.5m) | 14s |
| Afternoon (18 Sep) | 4.5ft (1.4m) | 14s |
| Evening (18 Sep) | 4.5ft (1.3m) | 13s |
Table - waves today at Northern Rights. (Swell directed towards the surf break)
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||||||||||
| 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 17 | 16 | 17 | 16 | 16 | 16 | 15 | 15 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 742 | 721 | 627 | 608 | 515 | 515 | 424 | 386 | 313 | 254 | 206 | 203 | 196 | 139 | 141 | 399 | 310 | 321 | 390 | 597 | 662 | 596 | 911 | 962 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- off | cross- on | cross- on | glass | glass | glass | cross- on | cross- on | glass | glass | cross- on | on | glass | cross- on | cross- on | on | on | on | glass | glass | glass | on |
High Tide / height (m) | 10:24PM 1.18 | 8:59AM 1.49 | 10:35PM 1.26 | 9:47AM 1.51 | 10:50PM 1.35 | |||||||||||||||||||
Low Tide / height (m) | 3:36PM 0.24 | 3:10AM 0.88 | 4:07PM 0.26 | 3:53AM 0.74 | 4:32PM 0.31 | 4:31AM 0.61 | ||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:03 | - | - | - | - | - | - | - | 6:03 | - | - | - | - | - | - | - | 6:03 |
| Sunset | - | - | 6:08 | - | - | - | - | - | - | - | 6:08 | - | - | - | - | - | - | - | 6:08 | - | - | - | - | - |
 |  | |  | | | | | |  | |  | | | | | | | | | | | | | |
Rain (mm) | - | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 28 | 29 | 28 | 27 | 25 | 25 | 24 | 25 | 28 | 29 | 28 | 27 | 26 | 25 | 25 | 26 | 28 | 28 | 28 | 27 | 26 | 25 | 25 | 26 |
| Feels °C (?) | 30 | 32 | 31 | 31 | 28 | 29 | 28 | 28 | 30 | 32 | 32 | 31 | 30 | 28 | 29 | 30 | 31 | 31 | 32 | 30 | 30 | 29 | 29 | 30 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Sumbawa
The wind is still offshore at Northern Rights (light winds from the NNE at SumbawaBesarBrangbiji 75 km from Northern Rights). No surfable waves
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