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Surf Forecasts:
Belongas surfForecast / Lombok – South / Indonesia
16 Day Weather and Surf, issued 1 pm Wednesday 20 May 2026 WITAForecast update in hr min s Forecast update imminent
Belongas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Belongas sea temperature is
29.1° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Belongas this week:
The surf forecast for Belongas over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (May 21) at 8AM. The primary swell is predicted to be 1.3m and 16s period with a secondary swell of 0.9m and 11s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Belongas in the next 16 days are 1.6m 15s and forecast to arrive on Friday (May 22) at 2PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Thu 21st May) | 4.5ft (1.3m) 16s |
| Best Surf | 8AM (Thu 21st May) | 4.5ft (1.3m) 16s |
| Most Powerful | 2PM (Fri 22nd May) | 5ft (1.6m) 15s |
Table - best surf conditions forecast for Belongas over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 4mm), mostly falling on Thu night. Warm (max 28°C on Wed afternoon, min 26°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Sat night. Warm (max 28°C on Sat afternoon, min 26°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||
Wed 20 | Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 16 | SW 15 | SW 14 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SW 16 | SW 16 | |
667 | 728 | 666 | 696 | 975 | 1055 | 1048 | 1006 | 1020 | 799 | 612 | 347 | 336 | 249 | 408 | 490 | 527 | 525 | 477 | 496 | 539 | |
Wind (km/h) | |||||||||||||||||||||
glassy | cross | glassy | glassy | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 00:48AM2.06m | 12:35PM2.71m | 1:38AM1.98m | 1:25PM2.46m | 2:35AM1.93m | 2:22PM2.18m | 3:46AM1.91m | 3:37PM1.92m | 5:06AM1.96m | 5:17PM1.76m | 6:18AM2.07m | 6:52PM1.73m | 7:14AM2.19m | ||||||||
Low Tide | 6:37PM0.03m | 6:17AM0.69m | 7:23PM0.22m | 7:08AM0.83m | 8:13PM0.44m | 8:11AM0.99m | 9:09PM0.65m | 9:35AM1.10m | 10:15PM0.82m | 11:22AM1.10m | 11:28PM0.92m | 12:56PM0.96m | 00:36AM0.96m | 1:58PM0.77m | |||||||
 |  |  | |  | | | | | | | | | | | | |  | | | | |
 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 |
 | 6:02 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | 6:01 |
1 | — | — | 1 | 2 | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 28 | 27 | 27 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 27 |
33 | 31 | 32 | 33 | 31 | 31 | 30 | 30 | 30 | 29 | 27 | 26 | 27 | 26 | 25 | 24 | 25 | 24 | 24 | 23 | 25 | |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SW 16 | SW 15 | SW 15 | SW 15 | SW 16 | SW 15 | SW 14 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SSW 13 | SW 13 | SW 12 | SW 17 | SW 18 | SW 16 | SW 16 |
 kJ | 385 | 728 | 666 | 696 | 975 | 1055 | 1048 | 1006 | 1020 | 799 | 612 | 347 | 336 | 249 | 222 | 162 | 149 | 362 | 246 | 496 | 539 |
Swell 2 Height (m) Direction Period (s) | SW 16 | SSW 11 | SSW 13 | SE 8 | SE 8 | SE 8 | SE 7 | W 16 | W 15 | W 15 | W 15 | — | W 15 | S 8 | SW 21 | SW 18 | SW 16 | SSW 12 | SSW 11 | SSW 11 | SW 21 |
| kJ | 667 | 239 | 249 | 77 | 73 | 57 | 26 | 5 | 4 | 4 | 4 | — | 5 | 60 | 17 | 53 | 130 | 125 | 85 | 47 | 71 |
Swell 3 Height (m) Direction Period (s) | SSE 7 | SE 8 | SE 8 | SSW 12 | W 16 | — | W 15 | — | — | — | — | — | — | W 14 | SW 18 | W 14 | SW 20 | — | SW 15 | SW 24 | — |
| kJ | 29 | 61 | 78 | 119 | 5 | — | 4 | — | — | — | — | — | — | 4 | 12 | 4 | 60 | — | 113 | 22 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | SE 7 | SE 7 | SE 7 | SE 6 | SE 6 | SE 7 | SE 7 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 |
| kJ | — | — | — | — | — | — | 56 | 39 | 44 | 101 | 152 | 299 | 290 | 189 | 408 | 490 | 527 | 525 | 477 | 393 | 375 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 15 | 0 | 0 | 15 | 15 | 21 | 15 | 21 | 21 | 21 | 57 | 79 | 60 | 79 | 79 | 68 | 79 | 68 | 21 | 68 |
Best forecast wave conditions in South Coast of Lombok | |||||||||||||||||||||
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 Belongas 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 Belongas Surf forecast
The above surf forecast table for Belongas provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Belongas can be found by selecting the local surf guide option on the grey menu. Our Belongas 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 (Belongas) 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 Belongas 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.
Belongas is 32 km (20 miles) from Mataram. If you plan a holiday in South Coast of Lombok, look for hotels and other accommodation in Mataram. Mataram has rooms for a wide range of budgets as well as car hire and transport links.
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