
Surf Forecasts:
Downtowns surf forecast from 24 Jul 2026:
- Best quality surf: Sunday 26 Jul, 2AM (local time) - 10ft (3.0m), 9s period, SE swell with cross-offshore winds.
- Most powerful swell: Friday 31 Jul, 8PM (local time) - 5ft (1.5m), 17s period, SSW swell with 1,235 kJ wave energy.
- Next surfable swell (1★+): Saturday 25 Jul, 8AM (local time) - 4ft (1.2m), 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 Saturday (Jul 25) at 8AM. The primary swell is predicted to be 1.2m and 15s period with a secondary swell of 1.3m and 8s. Another secondary swell of 1.8m and 7s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Downtowns in the next 16 days are 1.5m 17s and forecast to arrive on Friday (Jul 31) at 8PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 7s period and expected on Thursday (Jul 30) at 8AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sat 25th Jul) | 4ft (1.2m) 15s |
| Best Surf | 2AM (Sun 26th Jul) | 10ft (3.0m) 9s |
| Most Powerful | 8PM (Fri 31st Jul) | 5ft (1.5m) 17s |
Table - best surf conditions forecast for Downtowns over the next 16 days.
The Lowdown
Yo, what’s up? Rusty here, checking in with your local surf outlook for the next couple of weeks. It’s been a bit quiet to start, but hold tight – things are about to get real good.
The first surf worth paddling out for hits Saturday morning, July 25th, at Downtowns – a reef break that’s fairly consistent and fairly exposed to the southwest swell. The water is sitting at 80°, which is about average for this time of year, nothing out of the ordinary. Saturday morning serves up a clean 4ft SSW swell with a 15-second period, but the wind is a light cross-shore, so it’s marginal. The real kicker comes Saturday afternoon when the wind shifts to a gentle offshore from the ESE – that’s when it cleans right up. Still 4ft SSW swell, but the wave energy is moderate (903).
Sunday, July 26th, morning brings a bigger pulse: 8ft SE swell, period 9 seconds, with clean cross-offshore wind. The energy is moderate (1761). That’s a solid size, more for experienced surfers. Sunday afternoon drops to 6ft SE with a moderate offshore, still clean.
The standout action really revs up from Thursday, July 30th, through the end of the first week into August. Thursday afternoon at Downtowns is a major highlight – pure glassy conditions, a 3ft SSW swell, but with a 19-second period pumping strong wave energy (1370). That’s a long-period groundswell, which will bend nicely around this reef.
Then the next several days are pristine. Friday July 31st morning and afternoon are both glassy, with 4ft SSW swell and periods around 17 seconds – wave energy climbing into the strong range (1214–1377). Saturday August 1st is the real gem: glassy all day, peaking at 6ft SSW swell with an 18-second period and wave energy hitting 2101 – that’s powerful, clean, and lined up for the reef. This is the best on offer: expert-level, clean, and consistent. Sunday August 2nd stays glassy with 5–7ft SSW swell, and energy topping 2516 – very strong.
The second week holds more promise. Tuesday August 4th afternoon sees 6ft SW swell with a 16-second period and clean cross-offshore wind (1851 energy). Wednesday and Thursday stay clean, with swell around 5–6ft from SSW. Friday August 7th gets a bit choppy from cross-shore winds, but Saturday August 8th and Sunday August 9th bring the biggest swell of the whole run: 10ft SSW groundswell at 17–18 seconds, with very strong wave energy (5104 and 5058). This is expert-only territory – huge, powerful, and clean with cross-offshore wind. If you’re good enough, that’s your window.
So the long story short: the first couple of days are okay, but from Thursday July 30th through to the end, it’s a feast of clean, glassy, powerful SSW swell at Downtowns. The standout days are Saturday August 1st and Saturday August 8th. Crowds are possible here, so get in early.
This is Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 28°C on Sun afternoon, min 22°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Tue afternoon, min 23°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | |||||||||||||||
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 14 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 15 | SSW 19 | SSW 14 | SSW 17 | SSW 17 | SSW 16 |
Wave Graph | |||||||||||||||||||||
610 | 602 | 1156 | 1032 | 449 | 400 | 275 | 359 | 210 | 318 | 322 | 566 | 602 | 529 | 553 | 674 | 637 | 569 | 807 | 789 | 969 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | off | glassy | glassy | off |
High Tide | 7:58AM1.50m | 11:44PM1.02m | 8:49AM1.56m | 11:47PM1.05m | 9:33AM1.62m | 11:59PM1.09m | 10:12AM1.67m | 00:15AM1.13m | 10:48AM1.70m | 00:34AM1.19m | 11:23AM1.68m | 00:54AM1.25m | |||||||||
Low Tide | 3:35PM0.34m | 4:12PM0.25m | 2:13AM0.99m | 4:44PM0.18m | 3:14AM0.94m | 5:14PM0.14m | 3:59AM0.89m | 5:42PM0.12m | 4:39AM0.84m | 6:07PM0.13m | 5:17AM0.80m | 6:31PM0.18m | |||||||||
6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | |
— | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:10 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 24 | 27 | 28 | 24 | 27 | 28 | 24 | 27 | 28 | 24 | 26 | 27 | 24 | 26 | 27 | 24 | 26 | 26 | 25 |
Feels °C | 27 | 27 | 24 | 28 | 28 | 24 | 28 | 27 | 24 | 28 | 27 | 24 | 26 | 26 | 24 | 27 | 27 | 25 | 28 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 14 | SSE 9 | SE 9 | SSW 13 | SSW 13 | SSW 12 | SW 13 | SW 13 | SSW 16 | SSW 16 | SSW 15 | SSE 7 | SSW 14 | SSW 13 | SSW 15 | SSW 14 | SSW 14 | SSW 17 | SSW 17 | SSW 16 |
610 | 602 | 575 | 388 | 222 | 149 | 83 | 138 | 132 | 318 | 322 | 566 | 173 | 529 | 553 | 674 | 602 | 569 | 807 | 789 | 969 | |
Swell 2 Height (m) Direction Period (s) | SSE 8 | SW 16 | SSW 14 | SSW 14 | S 9 | SW 13 | SW 14 | SW 17 | SSW 16 | SW 12 | SW 12 | S 8 | SSW 14 | SW 23 | SW 21 | SE 7 | SSW 19 | SSE 7 | SSW 13 | SSW 13 | SW 21 |
161 | 41 | 367 | 286 | 45 | 46 | 89 | 147 | 179 | 73 | 73 | 1 | 602 | 21 | 116 | 106 | 637 | 81 | 336 | 269 | 441 | |
Swell 3 Height (m) Direction Period (s) | SW 18 | — | WSW 16 | SW 15 | SW 15 | SSW 19 | SW 18 | — | — | — | — | S 26 | SW 24 | — | — | SSW 20 | — | SSW 18 | SE 7 | SW 22 | SE 6 |
12 | — | 25 | 55 | 33 | 36 | 81 | — | — | — | — | 13 | 22 | — | — | 256 | — | 559 | 71 | 231 | 42 | |
Wind waves Height (m) Direction Period (s) | SE 7 | SSE 8 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SSE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 |
293 | 260 | 1156 | 1032 | 449 | 400 | 275 | 359 | 210 | 188 | 178 | 159 | 440 | 168 | 118 | 342 | 131 | 183 | 189 | 88 | 103 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 4 | 0 | 0 | 4 | 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.










