
Surf Forecasts:
Downtowns surf forecast from 3 Aug 2026:
- Best quality surf: Monday 3 Aug, 2PM (local time) - 5.5ft (1.7m), 15s period, SSW swell with glassy winds.
- Most powerful swell: Saturday 8 Aug, 2AM (local time) - 8ft (2.5m), 16s period, SSW swell with 3,751 kJ wave energy.
- Next surfable swell (1★+): Monday 3 Aug, 2PM (local time) - 5.5ft (1.7m), 15s period with SSW swell.
Best Forecast Surf Conditions for Downtowns this week:
The surf forecast for Downtowns over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 03) at 2PM. The primary swell is predicted to be 1.7m and 15s period with a secondary swell of 0.9m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Downtowns in the next 16 days are 2.5m 16s and forecast to arrive on Saturday (Aug 08) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 7s period and expected on Monday (Aug 03) at 2PM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Mon 3rd Aug) | 5.5ft (1.7m) 15s |
| Best Surf | 2PM (Mon 3rd Aug) | 5.5ft (1.7m) 15s |
| Most Powerful | 2AM (Sat 8th Aug) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Downtowns over the next 16 days.
The Lowdown
G’day, Rusty here. We’ve got a solid run of swell on the way for Downtowns, a reef break that’s fairly exposed and handles a SSW swell best. The water’s sitting at 80°, which is bang on average for the time of year – nothing weird there.
The pattern kicks off Monday the 3rd of August with a clean 6ft SSW swell pushing in. Morning’s a bit cross with a light S breeze, nothing too nasty, but the afternoon is where it’s at – glassy conditions with an E wind at 6 mph. That’s clean face, solid energy (1363 combined energy) and a 15-second period giving it proper grunt. This is a good one for experienced surfers.
Tuesday the 4th and Wednesday the 5th keep the consistency going. Tuesday is glassy all day with 5ft SSW swell, 14-second period, and light SE winds – smooth as. Wednesday afternoon cleans up nicely with a cross-off breeze and the swell shifting a touch more SW, combined energy hitting 1516. Thursday the 6th is a standout: 7ft SSW swell jumping to 7ft by the arvo, with a very long 17-second period in the morning. Glassy early, then offshore winds – this is quality, powerful surf, but at 7ft+ it’s getting into expert territory.
Friday the 7th is the pick of the first week. 8ft to 8ft SSW swell, 16 to 17-second period, and glassy winds all day. Combined energy is massive at 3444 in the afternoon. This is a serious groundswell – long period that will wrap nicely into the reef, but it’s big, so only for the skilled crew. Crowds are possible here sometimes, but with this size, only the keen will be out.
Saturday the 8th and Sunday the 9th see the swell ease slightly to 7ft to 8ft, but still with clean conditions. Sunday arvo has a bit more breeze at 9 mph, but it’s cross-off, so still rideable. Monday the 10th has a jump back to 8ft SSW swell with an 18-second period, but the wind is cross and a bit stronger at 9 mph, making it a bit messy. Combined energy is 3972, but the quality drops.
Tuesday the 11th afternoon is another moment: 8ft SSW swell, 16-second period, and cross-off winds – combined energy 4126. That’s a lot of power, but it’s clean. Wednesday the 12th and Thursday the 13th settle back to 5ft to 6ft, glassy mornings and offshore afternoons. Good, solid, consistent surf.
Friday the 14th brings a weird one: a 4ft SSW swell with a 24-second period – that’s an incredibly long groundswell. Combined energy is 2669, so there’s still punch, but that period will make it break straight at a beach break. At a reef like Downtowns, it should line up nicely, but the wind picks up to 12 mph in the afternoon, so morning is your best bet.
Saturday the 15th is huge: 8ft SSW swell, 18-second period, combined energy 5290. But the wind is a solid 12 to 16 mph cross-off. That’s a lot of wind for a reef break – it’ll be blown out, and honestly, this setup looks more interesting for kite surfing than paddle surfing. The last few days, Sunday the 16th through Tuesday the 18th, taper off: 7ft down to 4ft, but the winds stay clean or cross-off. Monday the 17th arvo is a nice clean 6ft with a light SE breeze.
The standout is Friday the 7th of August – that 8ft glassy day with the long-period SSW groundswell is the best on offer. Big, clean, powerful. Honourable mention to Thursday the 6th for the morning glass and 7ft. If you’re after smaller, easier waves, Tuesday the 4th and Thursday the 13th are your friendly, clean options.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Wed afternoon, min 23°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Thu morning, min 22°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SW 15 | SW 15 | SSW 19 | SSW 17 | SSW 16 | SSW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 |
Wave Graph | |||||||||||||||||||||
1297 | 1279 | 1117 | 1072 | 1049 | 607 | 1045 | 1088 | 2493 | 2434 | 2376 | 2178 | 2975 | 3444 | 3751 | 2936 | 2697 | 2359 | 2151 | 1997 | 1716 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | glassy | cross-off | glassy | glassy | cross-off | cross | glassy | off | cross-off | off | off | glassy | glassy | cross-off | glassy | off | cross-off | cross-off | cross-off | off |
High Tide | 1:10PM1.40m | 2:02AM1.45m | 1:52PM1.23m | 2:31AM1.50m | 2:45PM1.05m | 3:06AM1.53m | 4:13PM0.87m | 3:54AM1.55m | 5:03AM1.57m | 6:28AM1.62m | |||||||||||
Low Tide | 7:31PM0.43m | 8:10AM0.64m | 7:49PM0.54m | 9:09AM0.61m | 8:04PM0.64m | 10:29AM0.57m | 8:13PM0.74m | 12:24PM0.49m | 2:10PM0.34m | 3:14PM0.19m | |||||||||||
6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | |
— | 6:10 | — | — | 6:10 | — | — | 6:10 | — | — | 6:10 | — | — | 6:10 | — | — | 6:10 | — | — | 6:10 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 25 | 26 | 27 | 25 | 26 | 28 | 24 | 27 | 27 | 25 | 26 | 26 | 24 | 27 | 27 | 24 | 27 | 27 | 24 |
Feels °C | 28 | 28 | 28 | 29 | 30 | 28 | 27 | 28 | 26 | 28 | 28 | 27 | 27 | 27 | 26 | 28 | 27 | 25 | 28 | 27 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SW 15 | SW 15 | SSW 19 | SSW 17 | SSW 16 | SSW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 |
1297 | 1279 | 1117 | 1072 | 1049 | 607 | 1045 | 1088 | 2493 | 2434 | 2376 | 2178 | 2975 | 3444 | 3751 | 2936 | 2697 | 2359 | 2151 | 1997 | 1716 | |
Swell 2 Height (m) Direction Period (s) | SE 7 | SE 7 | SE 7 | SE 7 | SE 6 | SW 16 | SE 6 | SW 20 | SE 6 | SE 7 | — | SE 6 | SE 7 | — | — | SE 6 | — | — | SE 6 | — | SSW 20 |
73 | 84 | 71 | 47 | 51 | 527 | 18 | 428 | 24 | 54 | — | 42 | 43 | — | — | 54 | — | — | 47 | — | 160 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SW 24 | SSW 22 | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 26 |
— | — | — | — | — | 22 | 183 | — | — | — | — | — | — | — | — | — | — | — | — | — | 26 | |
Wind waves Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 7 | ESE 7 | SE 7 | SE 6 | SE 6 | SE 6 | SE 6 | ESE 7 | SE 6 | ESE 6 | ESE 6 | SE 6 | SE 6 | ESE 6 | SE 5 | SE 5 | ESE 6 | SE 5 | SE 5 |
228 | 229 | 183 | 163 | 131 | 32 | 62 | 54 | 72 | 170 | 56 | 120 | 130 | 44 | 77 | 141 | 57 | 27 | 116 | 49 | 19 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Sumbawa | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
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Information about the Downtowns Surf forecast
The above surf forecast table for Downtowns provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Downtowns can be found by selecting the local surf guide option on the grey menu. Our Downtowns 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 (Downtowns) 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 Downtowns 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.
Downtowns is 57 km (35 miles) from the city of Praya. If you plan a holiday in Sumbawa, look for hotels and other accommodation in Praya. Praya has rooms for a wide range of budgets as well as car hire and transport links.











