Surf Forecasts:
Marosi surf forecast from 15 Jun 2026:
- Best quality surf: Saturday 20 Jun, 11PM (local time) - 4ft (1.2m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 17 Jun, 11AM (local time) - 5ft (1.5m), 16s period, SSW swell with 1,107 kJ wave energy.
- Next surfable swell (1★+): Tuesday 16 Jun, 5AM (local time) - 4.5ft (1.3m), 13s period with SSW swell.
Best Forecast Surf Conditions for Marosi this week:
The surf forecast for Marosi over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Jun 16) at 5AM. The primary swell is predicted to be 1.3m and 13s period with a secondary swell of 0.6m and 5s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Marosi in the next 16 days are 1.5m 16s and forecast to arrive on Wednesday (Jun 17) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 7s period and expected on Monday (Jun 22) at 11PM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Tue 16th Jun) | 4.5ft (1.3m) 13s |
| Best Surf | 11PM (Sat 20th Jun) | 4ft (1.2m) 16s |
| Most Powerful | 11AM (Wed 17th Jun) | 5ft (1.5m) 16s |
Table - best surf conditions forecast for Marosi over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 7mm), mostly falling on Tue night. Warm (max 27°C on Tue afternoon, min 24°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Thu night. Warm (max 28°C on Sun afternoon, min 24°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Mon 22 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SSW 13 | SSW 13 | SW 13 | SSW 17 | SSW 16 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SW 13 | S 8 | S 8 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 599 | 458 | 388 | 317 | 1107 | 899 | 774 | 669 | 659 | 326 | 282 | 272 | 338 | 319 | 617 | 834 | 783 | 724 | 685 | 685 | 598 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross | off | cross-on | cross | glassy | cross | cross-on | cross | cross | cross | cross | cross | cross | cross-off | cross-on | cross | cross-off | cross-on | cross |
High Tide | 10:55PM2.20m | 10:31AM3.08m | 11:40PM2.26m | 11:19AM3.08m | 00:24AM2.32m | 12:06PM3.00m | 1:08AM2.35m | 12:53PM2.83m | 1:54AM2.37m | 1:42PM2.59m | 2:40AM2.37m | 2:33PM2.32m | 3:30AM2.35m | 3:30PM2.05m | |||||||
Low Tide | 4:19AM0.80m | 5:25PM-0.09m | 5:07AM0.73m | 6:09PM-0.07m | 5:56AM0.71m | 6:51PM0.02m | 6:46AM0.73m | 7:33PM0.18m | 7:37AM0.80m | 8:13PM0.38m | 8:33AM0.89m | 8:54PM0.59m | 9:35AM0.98m | ||||||||
 |  | |  | | | |  | |  | |  | | | | | | | | |  | |
 | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — |
 | 5:50 | — | 5:50 | — | — | 5:50 | — | — | 5:51 | — | — | 5:51 | — | — | 5:51 | — | — | 5:51 | — | — | 5:51 |
mm | — | — | — | 2 | — | — | 4 | 1 | — | 1 | — | — | — | — | 1 | 1 | — | 1 | 1 | — | 1 |
Temp °C | 26 | 26 | 27 | 26 | 26 | 27 | 26 | 27 | 27 | 26 | 27 | 26 | 26 | 26 | 27 | 27 | 27 | 28 | 27 | 27 | 27 |
Feels °C | 29 | 27 | 29 | 29 | 27 | 28 | 28 | 27 | 27 | 26 | 26 | 25 | 25 | 27 | 27 | 29 | 29 | 31 | 30 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SW 13 | SSW 12 | SSW 16 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SW 13 | SW 13 | SSW 13 | SSE 7 | S 8 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 |
| kJ | 599 | 458 | 388 | 268 | 1107 | 899 | 774 | 669 | 659 | 326 | 230 | 206 | 191 | 138 | 617 | 834 | 783 | 724 | 685 | 685 | 598 |
Swell 2 Height (m) Direction Period (s) | SE 6 | SSE 5 | SW 19 | SSW 17 | — | — | SE 5 | SW 7 | — | SW 24 | SSW 21 | SW 20 | SSW 12 | SW 18 | SSW 12 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SW 18 |
| kJ | 25 | 10 | 88 | 317 | — | — | 29 | 26 | — | 22 | 45 | 190 | 190 | 319 | 93 | 108 | 66 | 77 | 105 | 57 | 82 |
Swell 3 Height (m) Direction Period (s) | SW 19 | SW 19 | — | SE 6 | — | — | — | — | — | SW 23 | SSW 21 | SSW 9 | SW 18 | SW 12 | — | — | S 7 | — | — | — | — |
| kJ | 15 | 14 | — | 32 | — | — | — | — | — | 21 | 45 | 30 | 338 | 144 | — | — | 34 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | SE 5 | SE 6 | SE 5 | SE 5 | SE 6 | SE 5 | SE 5 | S 9 | S 8 | S 8 | SSE 7 | SSE 7 | SSE 8 | — | SE 7 | SE 7 | SE 7 | — | SE 7 |
| kJ | — | — | 13 | 80 | 38 | 22 | 88 | 29 | 33 | 292 | 282 | 272 | 302 | 220 | 176 | — | 114 | 247 | 255 | — | 112 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 22 | 137 | 0 | 134 | 137 | 0 | 134 | 284 | 134 | 134 | 134 | 88 | 134 | 137 | 0 | 20 | 134 | 0 | 20 | 22 |
Best forecast wave conditions in Sumba | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Marosi surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Marosi Surf forecast
The above surf forecast table for Marosi provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Marosi can be found by selecting the local surf guide option on the grey menu. Our Marosi 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 (Marosi) 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 Marosi 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.
Are you planning a holiday in Sumba? If you are looking for accommodation near Marosi, camping, hotels and holiday cottages in Sumba, consider staying in Adalara which is 29 km (18 miles) away.
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