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Surf Forecasts:
Jimmys surfForecast / Sumatra – Mainland / Indonesia
48hr Weather and Surf, issued 12 am Monday 18 May 2026 WIBForecast update in hr min s Forecast update imminent
Jimmys surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Jimmys sea temperature is
29.9° C
(Which is normal for this time of year)How big are the waves at Jimmys today?
The current surf forecast for Jimmys at 6AM is: 1.8m 15s primary swell from a South direction and 0.5m 9s secondary swell from a West direction (forecast issued at 12:00am May 18). The wind direction is predicted to be offshore and the swell rating is 4.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 6ft (1.8m) | 15s |
| Afternoon (18 May) | 6ft (1.8m) | 14s |
| Evening (18 May) | 6ft (1.8m) | 14s |
Table - waves today at Jimmys. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 4mm), mostly falling on Mon afternoon. Warm (max 29°C on Mon morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | ||||||||||||||||||||||
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 | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | SSW 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | |
1263 | 1297 | 1549 | 1430 | 1298 | 1298 | 1298 | 1081 | 1034 | 1018 | 599 | 573 | 483 | 365 | 359 | 556 | 556 | 547 | 517 | 504 | 567 | 635 | 627 | 572 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | off | cross-on | cross-on | cross-on | glassy | glassy | glassy | glassy | glassy | glassy | on | glassy | glassy | cross-off | glassy | cross-off | cross-off | cross-on | on | cross-on | glassy | glassy | |
High Tide | 7:19AM1.37m | 8:06PM0.72m | 8:06AM1.37m | 8:54PM0.71m | 8:54AM1.32m | 9:45PM0.70m | ||||||||||||||||||
Low Tide | 00:35AM0.15m | 2:17PM-0.05m | 1:20AM0.14m | 3:05PM-0.04m | 2:07AM0.16m | 3:54PM0.00m | ||||||||||||||||||
 | |  | | |  |  |  | | | | |  | | | | | | | | | | | | |
 | — | 6:03 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:57 | — | — | — | — | — | — | — | 5:57 | — | — | — | — | — | — | — | 5:57 | — | — |
— | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | 1 | — | — | 1 | — | — | — | — | — | — | |
Temp °C | 26 | 26 | 26 | 29 | 29 | 28 | 27 | 27 | 26 | 26 | 26 | 29 | 29 | 28 | 27 | 26 | 26 | 26 | 26 | 29 | 28 | 28 | 27 | 27 |
30 | 30 | 29 | 33 | 33 | 32 | 32 | 32 | 31 | 31 | 31 | 34 | 33 | 33 | 33 | 30 | 30 | 30 | 30 | 33 | 32 | 32 | 32 | 32 | |
Swell 1 Height (m) Direction Period (s) | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | SSW 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | SW 16 | S 11 | S 11 | S 11 |
 kJ | 1263 | 1297 | 1549 | 1430 | 1298 | 1298 | 1298 | 1081 | 1034 | 1018 | 599 | 573 | 483 | 365 | 359 | 556 | 556 | 547 | 472 | 464 | 567 | 357 | 350 | 338 |
Swell 2 Height (m) Direction Period (s) | W 9 | W 9 | W 9 | W 9 | W 9 | SW 20 | W 9 | W 9 | SW 18 | SW 18 | S 9 | S 9 | S 9 | S 9 | S 8 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | S 9 | SW 16 | SW 16 | SW 15 |
| kJ | 39 | 39 | 40 | 40 | 40 | 239 | 40 | 40 | 155 | 307 | 157 | 152 | 152 | 148 | 107 | 432 | 504 | 523 | 517 | 504 | 126 | 635 | 627 | 572 |
Swell 3 Height (m) Direction Period (s) | SW 21 | SW 21 | SW 21 | SW 21 | SW 20 | W 9 | SW 19 | SW 19 | W 9 | WNW 9 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | S 12 | WNW 8 | WNW 8 | WNW 8 |
| kJ | 72 | 117 | 72 | 71 | 134 | 41 | 133 | 131 | 40 | 26 | 307 | 249 | 249 | 270 | 310 | 14 | 13 | 13 | 13 | 13 | 220 | 13 | 13 | 6 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 27 | 91 | 91 | 0 | 0 | 0 | 0 | 0 | 0 | 450 | 0 | 0 | 0 | 0 | 0 | 0 | 233 | 233 | 521 | 0 | 0 |
Best forecast wave conditions in Indonesia - Sumatra - Mainland | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
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