Downtowns Surf Break

Lat Long: 8.85° S 116.77° E

Downtowns Surf Forecast and Surf Report

Issued: 7 am 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's Downtowns sea temperature is
26.6° C
0.3° 

Downtowns surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Downtowns surf forecast from 12 Aug 2026:

  • Best quality surf: Wednesday 12 Aug, 5PM (local time) - 6ft (1.9m), 16s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 19 Aug, 5AM (local time) - 7ft (2.2m), 19s period, SW swell with 3,453 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 12 Aug, 5PM (local time) - 6ft (1.9m), 16s 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 Wednesday (Aug 12) at 5PM. The primary swell is predicted to be 1.9m and 16s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Downtowns in the next 16 days are 2.2m 19s and forecast to arrive on Wednesday (Aug 19) at 5AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Thursday (Aug 13) at 2PM.

Wave TypeTime (WITA) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Wed 12th Aug)6ft (1.9m) 16s
Best Surf 5PM (Wed 12th Aug)6ft (1.9m) 16s
Most Powerful 5AM (Wed 19th Aug)7ft (2.2m) 19s

Table - best surf conditions forecast for Downtowns over the next 16 days.


The Lowdown

Alright, Rusty here. Let's get into it.

We've got a solid run of surf coming your way at Downtowns. This is a reef break, so it handles the bigger, longer period swells really well, giving you some proper shaped waves. Water temp is sitting at about 80° and that's about average for the time of year, so nothing too wild on that front.

The action kicks off Wednesday morning, August 12th, with a clean 6 ft SSW swell. It's a bit cross-shore, but the conditions are good. The real standout is Thursday the 13th. We've got glassy conditions with a 7 ft SSW swell pushing through, and the combined energy is a solid 2571 (moderate to strong). This is the session to aim for; the wind is dead glass, and the swell has some serious legs. The wave energy is strong, and the period is long at 17 seconds, so there will be plenty of power behind those waves, but it's a reef break, so the shape should be excellent. This is a bit overhead, so it's one for the experienced crew.

The run continues into the weekend. Saturday the 15th has some nice 7 ft SSW swell, but the wind is a bit cross, so it's not as clean as Thursday. The energy is still pumping though. Sunday the 16th afternoon turns glassy again with a 7 ft swell, which is a great option. As we move into the next week, Monday the 17th is glassy but the swell drops to 6 ft. Tuesday the 18th picks back up with glassy, clean conditions and a 6 ft SW swell, and the energy is strong again at 2580.

Now, look ahead to Wednesday the 19th. The afternoon is looking absolutely prime with glassy conditions and a 8 ft SW swell, period of 18 seconds, and energy at 3543. That's a big, powerful, clean swell. Then Thursday the 20th is the real standout of the whole forecast. The morning is glassy with a 10 ft SW swell, and the combined energy is a massive 4261. That's strong to very strong energy. This is a serious, expert-only wave. The afternoon has offshore winds too, so it'll be a clean, heavy day.

The following week holds more promise. Saturday the 22nd has consistent 8 ft SW swell with clean cross-off winds. Sunday the 23rd afternoon is glassy with a 5 ft swell but a 20-second period – that's a very long period groundswell, and the energy is still strong at 3670. After that, the swell stays in the 5 ft to 8 ft range through the rest of the month, with many clean or glassy afternoons, so the surf keeps coming.

The standout moments are clearly Thursday the 13th morning for the glassy, powerful 7 ft swell, and Thursday the 20th morning for the big, expert-level, glassy 10 ft swell. Get on it.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 27°C on Wed afternoon, min 22°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 27°C on Sat afternoon, min 23°C on Sat night). Wind will be generally light.

Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
4
4
4
4
4
3
4
4
3
3
4
3
4
3
3
3
3
4
4
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
SSW
14
1.9
SSW
16
1.7
SSW
14
2.2
SSW
17
2.4
SSW
16
2.3
SSW
16
2.1
SSW
16
1.9
SSW
15
1.7
SSW
15
2.1
SSW
17
2.2
SSW
17
2.2
SSW
16
2.1
SSW
16
2
SSW
16
1.7
SSW
15
1.7
SSW
14
1.5
SSW
14
1.3
SSW
13
1.4
SW
16
1.8
SW
16
2
SW
16
Wave Graph
Metric surfscale
Energy kJ
1206
1766
1080
2507
3127
2716
2028
1496
1275
2594
2758
2358
2080
1828
1208
1114
862
599
1084
1631
2058
Wind (km/h)
10
S
10
SE
10
ESE
5
SSW
5
SSE
10
ESE
10
SSW
10
SSE
10
E
10
S
5
S
10
ESE
5
SSW
5
SSE
5
ESE
5
SW
5
ENE
5
E
5
SSW
5
S
10
ESE
Wind State
cross
cross-off
off
glassy
cross-off
cross-off
cross
cross-off
off
cross
cross
off
cross-on
glassy
cross-off
glassy
glassy
off
glassy
glassy
off
High Tide
9:50AM1.83m
11:42PM1.21m
10:40AM1.83m
00:06AM1.31m
11:25AM1.76m
00:31AM1.41m
12:08PM1.64m
00:57AM1.49m
12:49PM1.47m
1:23AM1.54m
1:30PM1.29m
1:49AM1.55m
2:11PM1.10m
2:16AM1.53m
Low Tide
5:14PM0.01m
4:26AM0.75m
5:45PM0.06m
5:17AM0.64m
6:14PM0.16m
6:05AM0.56m
6:39PM0.28m
6:51AM0.52m
7:01PM0.40m
7:38AM0.50m
7:20PM0.52m
8:28AM0.52m
7:34PM0.63m
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:22
6:22
6:22
6:22
6:22
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:10
6:10
6:10
6:10
6:10
6:10
6:10
 mm
Temp °C
26
27
24
26
27
24
26
27
25
26
27
25
26
26
25
26
27
25
26
26
25
Feels °C
27
27
25
29
28
26
28
27
27
28
28
28
28
27
28
29
29
28
29
28
28
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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