Periscope Point Surf Break

Lat Long: 8.78° S 118.37° E

Periscope Point Surf Forecast and Surf Report

Issued: 7 pm 21 Jul 2026 (local time)

Forecast update in  hr  min

Today's Periscope Point sea temperature is
27.2° C
0.8° 

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


Periscope Point surf forecast from 21 Jul 2026:

  • Best quality surf: Saturday 25 Jul, 2AM (local time) - 2.5ft (0.8m), 16s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 22 Jul, 2AM (local time) - 5ft (1.5m), 14s period, SSW swell with 908 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 22 Jul, 2AM (local time) - 5ft (1.5m), 14s period with SSW swell.

Best Forecast Surf Conditions for Periscope Point this week:

The surf forecast for Periscope Point over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 22) at 2AM. The primary swell is predicted to be 1.5m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Periscope Point in the next 16 days are 1.5m 14s and forecast to arrive on Wednesday (Jul 22) 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 1.4m 6s period and expected on Wednesday (Jul 22) at 8PM.

Wave TypeTime (WITA) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Wed 22nd Jul)5ft (1.5m) 14s
Best Surf 2AM (Sat 25th Jul)2.5ft (0.8m) 16s
Most Powerful 2AM (Wed 22nd Jul)5ft (1.5m) 14s

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


The Lowdown

Alright folks, Rusty here. Let’s talk about what’s coming up for the region.

We’ve got a solid run of waves on the way, but it’s a slow burner. The first few days are small and a bit tricky, but don’t write it off. The real juice builds in the second week, shaping up for a proper run of quality swell.

First up, Periscope Point is where it’s at. This is a sheltered reef setup, so it needs the right direction, and the swell is coming from the SSW – which is bang on for this spot. It’s an inconsistent break, so you need to be patient, but when it’s on, it’s worth the wait. The water temp is about average for this time of year, so nothing unusual there.

The first recommendation kicks off on Wednesday, July 22. The morning has a clean 4ft SSW swell with a 13-second period. The wind is a cross-off from the SE at 9 mph, keeping things tidy. The combined energy is moderate (655). It’s not huge, but it’s a start. The afternoon drops a little and the tide gets iffy, so focus on the early session.

Thursday and Friday are similar – clean, consistent 4ft to 3ft SSW swell, but the conditions are marginal thanks to the tide. The real standout of this first week is Saturday, July 25. The morning sees a clean 4ft SSW swell with a 15-second period, cross-off wind, and a solid moderate energy reading (708). This is a beautiful, long-period groundswell, and at a reef, that’s a dream. It’s the pick of the first week, but expect crowds to be possible.

Sunday, July 26 has a bit more size (4-5ft) but the period drops to 8 seconds, so it’s a bit more crumbly and less organised. Still, the afternoon session is clean.

Monday, July 27 is a write-off. The wind is on it, the period is short, and the energy is weak (355). A gap day.

From Tuesday, July 28 onwards, things start to build again. The morning and afternoon have a clean 3ft, 16-second SSW swell with moderate energy. Not big, but that long period will make the waves feel better than the height suggests.

The first true standout of the whole forecast kicks off on Wednesday, July 29. The morning has a clean 4ft, 14-second SSW swell with light cross-off wind (6 mph) and good energy (715). The afternoon is similar, just with a risk of thunderstorms.

Thursday, July 30 is when things get serious. The morning is solid at 4ft, 15-second SSW with high energy (990). But the afternoon is the one to circle: a 4ft, 19-second SW swell with a massive combined energy of 1546. This is a very long-period groundswell. At a reef, this will be glassy, clean, and absolutely pumping. This is the best of the run.

Friday, July 31 keeps the fire alive with 4ft, 18-second SSW swell and very strong energy (1405-1412). Clean cross-off wind all day.

Saturday, August 1 sees the swell push up to 5-6ft of SW/SSW groundswell with 16-second periods. The energy is very strong (1382-1391). Still clean, still good.

Sunday, August 2 is a monster. 6-6ft of SSW swell with 15-16 second periods and energy readings over 1618. This is a big, powerful, clean groundswell. The wind is light, making it glassy. This is a true standout.

Monday, August 3 holds at 6-6ft, 14-second SSW with very strong energy (1484-1621). Still excellent, but the period is dropping slightly.

Now, the Tuesday, August 4 session is not for the faint-hearted. 12ft of SSW swell with a 19-second period and an insane combined energy of 7231. This is huge, powerful, and dangerous. Only for experts. The break will be hitting hard, and the long period will make it wall up. The wind is still clean, but this is a big, heavy wave.

Wednesday, August 5 is still big at 8ft, 16-second SSW, but the afternoon gets a bit marginal with the tide. The morning is still excellent for experienced surfers.

Thursday, August 6 wraps things up with a clean 7ft, 14-second SSW swell and light wind. Energy is still very strong (2044). A solid end to the run.

So, to sum it up: the first week is small but clean, with Saturday July 25 being the pick. The second week is where the magic happens. The absolute standout runs from Thursday, July 30 through to Monday, August 3 – that’s the window of big, clean, long-period groundswell. If you can only pick one day, go for Thursday, July 30 afternoon or Sunday, August 2. Crowds are possible at Periscope Point, especially when it’s this good. Get in the water.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Wed afternoon, min 23°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

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

Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
1
2
1
1
1
1
2
3
2
1
2
1
2
1
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
SSW
14
1.3
SSW
13
1.2
SSW
13
1.2
SSW
13
1.2
SSW
14
1.2
SSW
14
1.2
SSW
14
0.9
SSW
13
0.7
SSW
17
0.8
SSW
16
1.1
SSW
15
1
SSW
14
2.2
SE
8
0.8
SSW
13
1.4
SSE
8
1.4
SSE
8
0.6
SSW
13
0.6
SSW
17
0.6
SSW
16
Wave Graph
Metric surfscale
Energy kJ
908
590
451
465
553
538
553
304
252
291
522
437
624
237
243
214
121
202
181
Wind (km/h)
10
SE
15
SE
20
SSE
10
SE
20
SE
20
SSE
15
ESE
20
SE
15
SSE
15
ESE
15
SE
15
SSE
15
ESE
15
SE
15
SSE
15
ESE
20
SE
20
SE
15
ESE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
3:06AM2.56m
3:22PM1.91m
3:48AM2.41m
4:27PM1.68m
4:46AM2.27m
6:29PM1.56m
6:09AM2.19m
8:40PM1.63m
7:38AM2.22m
9:39PM1.79m
8:43AM2.35m
10:13PM1.96m
Low Tide
8:33PM0.78m
9:36AM0.94m
9:04PM1.00m
10:39AM1.06m
9:39PM1.20m
12:16PM1.11m
10:37PM1.38m
2:06PM1.01m
00:46AM1.47m
3:10PM0.84m
2:28AM1.39m
3:50PM0.66m
3:24AM1.24m
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clear
clear
clear
clear
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clear
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<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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>
6:02
6:02
6:02
6:02
6:02
6:04
6:04
 mm
Temp °C
23
25
26
24
26
26
24
26
26
24
26
27
25
26
27
24
26
27
25
Feels °C
25
25
25
24
24
24
23
25
25
25
27
27
25
27
27
25
27
27
27
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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 Periscope Point Surf forecast

The above surf forecast table for Periscope Point provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Periscope Point can be found by selecting the local surf guide option on the grey menu. Our Periscope Point 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 (Periscope Point) 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 Periscope Point 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 Sumbawa? If you are looking for accommodation near Periscope Point, camping, hotels and holiday cottages in Sumbawa, consider staying in Bima which is 52 km (32 miles) away. Alternatively, find information about places to stay and car hire in Raba which is 56 km (35 miles) away

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