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Surf Forecasts:
Jimmys surfForecast / Sumatra – Mainland / Indonesia
48hr Weather and Surf, issued 12 pm Thursday 18 Sep 2025 WIB
How big are the waves at Jimmys today?
The current surf forecast for Jimmys at 3PM is: 2.2m 13s primary swell from a South direction and 1.9m 13s secondary swell from a South direction, 0.3m 15s secondary swell from a South direction (forecast issued at 12:00pm September 18). The wind direction is predicted to be cross-shore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 6.5ft (2.0m) | 13s |
| Afternoon (18 Sep) | 7ft (2.2m) | 13s |
| Evening (18 Sep) | 4ft (1.2m) | 13s |
Table - waves today at Jimmys. (Swell directed towards the surf break)
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||||||||||
| 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 13 | 13 | 8 | 8 | 15 | 14 | 17 | 17 | 18 | 18 | 16 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1339 | 1288 | 1632 | 1359 | 440 | 378 | 398 | 568 | 323 | 351 | 377 | 414 | 1056 | 843 | 1279 | 2239 | 2523 | 874 | 929 | 940 | 929 | 1031 | 1018 | 1469 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | cross | cross | cross- off | glass | glass | glass | cross- on | cross- on | glass | glass | glass | glass | glass | glass | glass | on | glass | glass | cross- off | cross- off | glass | glass |
High Tide / height (m) | 5:12PM 0.65 | 4:54AM 0.97 | 5:53PM 0.77 | 5:45AM 1.00 | 6:26PM 0.88 | 6:26AM 1.01 | ||||||||||||||||||
Low Tide / height (m) | 10:28PM 0.40 | 11:54AM 0.20 | 11:34PM 0.33 | 12:24PM 0.17 | 12:21AM 0.26 | |||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 5:56 | - | - | - | - | - | - | - | 5:56 | - | - | - | - | - | - | - | 5:54 |
| Sunset | - | - | 6:01 | - | - | - | - | - | - | - | 6:00 | - | - | - | - | - | - | - | 6:00 | - | - | - | - | - |
 | |  |  | | | | | | | | |  |  |  |  | | | | |  | | | | |
Rain (mm) | - | - | 3 | 5 | 4 | 1 | 3 | 1 | 1 | 3 | 4 | 3 | 1 | - | - | - | - | 1 | 3 | 2 | 1 | 1 | - | - |
| Temp. °C | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 28 | 27 | 27 | 26 | 25 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 25 | 25 | 26 |
| Feels °C (?) | 30 | 29 | 30 | 28 | 30 | 30 | 30 | 30 | 31 | 31 | 33 | 30 | 29 | 30 | 31 | 30 | 32 | 31 | 32 | 30 | 30 | 28 | 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 Sumatra - Mainland
Still cross-shore at Jimmys (light winds from the SE at TanjungKarangRadinInten II 160 km from Jimmys). 2.0m 3s local chop from the SSE with a 1.1m 13s groundswell from the S. 2 swells combining so expect closeout sets.
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