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Surf Forecasts:
Marosi surfForecast / Sumba / Indonesia
48hr Weather and Surf, issued 7 pm Sunday 17 May 2026 WITAForecast update in hr min s Forecast update imminent
Marosi surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Marosi sea temperature is
28.5° C
(Which is normal for this time of year)How big are the waves at Marosi today?
The current surf forecast for Marosi at 2AM is: 1.5m 14s primary swell from a South-southwest direction (forecast issued at 07:00pm May 17). The wind direction is predicted to be cross-shore.
| Time (WITA) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 5ft (1.5m) | 14s |
| Afternoon (18 May) | 5ft (1.5m) | 14s |
| Evening (18 May) | 5ft (1.5m) | 14s |
Table - waves today at Marosi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 21mm), heaviest during Mon night. Warm (max 28°C on Wed morning, min 25°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Sun 17 | Monday 18 | Tuesday 19 | Wed 20 | |||||||||||||||||||||
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 | 11 AM | 2 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 13 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | |
820 | 921 | 1028 | 862 | 862 | 862 | 862 | 955 | 731 | 876 | 756 | 745 | 659 | 581 | 572 | 528 | 437 | 397 | 390 | 522 | 442 | 447 | 447 | 389 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross | glassy | cross-off | off | off | glassy | glassy | cross-off | off | off | off | off | off | glassy | on | |
High Tide | 11:01PM2.37m | 10:43AM3.17m | 11:42PM2.35m | 11:24AM3.17m | 00:25AM2.29m | 12:07PM3.06m | ||||||||||||||||||
Low Tide | 4:49PM-0.12m | 4:33AM0.65m | 5:31PM-0.17m | 5:13AM0.64m | 6:13PM-0.12m | 5:55AM0.69m | ||||||||||||||||||
 |  |  |  | |  | | | | | | |  | | | | | | |  | | | | | |
 | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — |
 | 5:49 | — | — | — | — | — | — | — | 5:49 | — | — | — | — | — | — | — | 5:49 | — | — | — | — | — | — | 5:49 |
2 | — | 1 | — | — | — | — | 1 | 1 | 2 | 4 | — | 1 | — | 1 | 3 | 4 | 1 | — | — | — | — | — | 1 | |
Temp °C | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 26 | 25 | 26 | 27 | 27 | 27 | 26 | 26 | 25 | 25 | 26 | 28 | 27 |
31 | 31 | 30 | 29 | 29 | 29 | 30 | 30 | 31 | 30 | 31 | 30 | 28 | 30 | 31 | 31 | 31 | 30 | 30 | 28 | 28 | 30 | 32 | 30 | |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SW 12 | SW 18 | SW 17 |
 kJ | 820 | 921 | 1028 | 862 | 862 | 862 | 862 | 955 | 731 | 876 | 756 | 745 | 659 | 581 | 572 | 528 | 437 | 397 | 390 | 384 | 384 | 330 | 447 | 389 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | SW 24 | SW 24 | SW 24 | SW 24 | SW 22 | SW 21 | SW 21 | SW 21 | SE 4 | SW 20 | SW 19 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SSW 12 | SSW 12 |
| kJ | — | — | — | — | 22 | 22 | 22 | 22 | 18 | 72 | 72 | 72 | 5 | 186 | 236 | 184 | 133 | 123 | 375 | 522 | 442 | 447 | 184 | 180 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SE 4 | SW 21 | SE 5 | SE 5 | SE 5 | SE 6 | SE 6 | SE 7 | SE 7 | SE 7 | SSE 6 | SSW 8 | SSW 9 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 12 | 69 | 5 | 6 | 5 | 10 | 11 | 17 | 23 | 13 | 14 | 47 | 52 |
Wind waves Height (m) Direction Period (s) | SE 4 | — | — | — | S 5 | S 5 | S 5 | S 5 | S 5 | SE 4 | — | S 8 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 7 | — | — | — | 8 | 8 | 13 | 25 | 19 | 8 | — | 99 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 282 | 137 | 13 | 88 | 88 | 88 | 88 | 88 | 88 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 |
Best forecast wave conditions in Sumba | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
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