Periscope Point Surf Break

Lat Long: 8.78° S 118.37° E

Periscope Point Surf Forecast and Surf Report

Issued: 7 am 05 Sep 2026 (local time)

Forecast update in  hr  min

Today's Periscope Point sea temperature is
26.7°C
0.2° 

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 5 Sep 2026:

  • Best quality surf: Sunday 6 Sep, 5PM (local time) - 7.5ft (2.3m), 17s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 9 Sep, 11AM (local time) - 8ft (2.5m), 16s period, SSW swell with 3,504 kJ wave energy.
  • Next surfable swell (1★+): Saturday 5 Sep, 8PM (local time) - 6.5ft (2.0m), 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 Saturday (Sep 05) at 8PM. The primary swell is predicted to be 2.0m 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 2.5m 16s and forecast to arrive on Wednesday (Sep 09) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Thursday (Sep 10) at 11PM.

Wave TypeTime (WITA) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sat 5th Sep)6.5ft (2.0m) 14s
Best Surf 5PM (Sun 6th Sep)7.5ft (2.3m) 17s
Most Powerful11AM (Wed 9th Sep)8ft (2.5m) 16s

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


The Lowdown

Alright mates, Rusty here. Let’s break down what’s coming our way for the next couple of weeks. There’s a proper run of surf on the horizon, so let’s get into it.

The first day with anything rideable is Saturday, September 5th, but it’s a bit so-so. After that, things lock in. The real standout window starts Sunday, September 6th, with a mix of strong, long-period groundswells and clean, cross-off winds that are going to make for some unreal sessions.

We’re talking about Periscope Point, a sheltered reef that’s picky about when it works, but when it does, it’s a gem. It’s an advanced spot, and it’s inconsistent, so don’t expect it to fire every day. The water is sitting at about 80°F, which is pretty average for the time of year, nothing wild.

The magic hits on Sunday afternoon, September 6th. We’ve got a 8ft SSW groundswell with a 17-second period, pushing a ton of energy. The wind is light and cross-off from the SSE at just 6 mph, so the surface is going to be glassy clean. That’s your best session of the whole run – a true standout.

The swell stays solid through the week. Monday and Tuesday bring 7ft to 5ft SSW swell, still with those cross-off breezes and clean conditions. By Wednesday, September 9th, we’re back up to 8ft SSW swell with a 16-second period and light wind. That’s a beast – over 8ft, so this one is for the experienced crew only. The energy is strong, so you’ll feel the push.

Looking further out, Sunday, September 13th has a 6ft SW swell with a 19-second period – that’s a very long period groundswell. It’ll have heaps of energy, and at a reef, that long period should wrap in beautifully. The winds are light and cross-off, so it’s another excellent call, though a bit less certain this far out.

For the second week, the pattern holds. Swell sizes hang around 5ft to 8ft, mostly from the SW, with consistent cross-off winds. A few days in the middle of the week, like Wednesday, September 16th, push up to 8ft again, but the tide might be a factor, so check your window. The last few days, from Thursday, September 17th through the weekend of September 20th, are all excellent with clean conditions and light winds.

The only thing to keep in mind is that Periscope Point is inconsistent. It doesn’t fire all the time, but when it does, it’s quality. Expect crowds to be around, especially on the weekends, because this is going to be the spot.

So, bottom line: Sunday, September 6th afternoon is the big one. Clean, solid, and long-period. Wednesday, September 9th is for the hardcore. The rest of the run is very good to excellent. Don’t sleep on it.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 28°C on Sat morning, min 23°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 4mm), mostly falling on Tue night. Warm (max 28°C on Tue morning, min 24°C on Tue night). Wind will be generally light.

Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
2
3
4
3
3
3
3
4
4
4
4
4
4
4
4
4
4
4
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.9
SSW
14
1.9
SSW
16
2
SSW
14
1.7
SSW
14
2.3
SSW
17
2.3
SSW
16
2.1
SSW
14
2.1
SSW
14
1.8
SSW
13
1.2
SSW
20
1.6
SSW
18
2
SSW
17
2.5
SSW
16
2.4
SSW
16
2.3
SSW
16
2
SSW
15
2.2
SW
16
2.2
SW
16
2.1
SW
16
2.1
SW
16
1.9
SW
15
Wave Graph
Metric surfscale
Energy kJ
1362
1677
1582
1080
2952
2550
1900
1724
1186
1093
1670
2204
3504
2864
2518
1785
2438
2379
2146
2093
1567
Wind (km/h)
15
SE
15
S
5
S
10
SSE
10
SSE
10
S
15
SSE
15
SSE
10
SSE
15
SSE
15
S
10
SSE
15
SSE
15
S
10
SSE
15
SE
15
SSE
15
ESE
15
SE
15
SSE
5
ESE
Wind State
cross-off
cross
cross
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
High Tide
2:59PM1.72m
3:12AM2.42m
5:27PM1.51m
5:11AM2.23m
8:28PM1.73m
7:29AM2.32m
9:10PM2.05m
8:42AM2.54m
9:42PM2.36m
9:32AM2.75m
10:11PM2.65m
10:13AM2.89m
10:40PM2.88m
Low Tide
9:16AM0.83m
8:17PM1.13m
10:56AM1.02m
9:15PM1.41m
1:32PM0.95m
00:58AM1.48m
2:44PM0.71m
2:37AM1.19m
3:25PM0.50m
3:28AM0.86m
3:59PM0.34m
4:09AM0.57m
4:30PM0.25m
4:45AM0.34m
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
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part cloud
rain showers
part cloud
part cloud
rain showers
clear
part cloud
part cloud
part cloud
thunderstorm
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:05
6:05
6:03
6:03
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:04
6:04
6:04
6:04
6:04
6:02
6:02
 mm
2
2
1
Temp °C
28
28
24
28
28
25
27
27
24
28
28
25
28
28
25
28
28
25
28
28
25
Feels °C
28
29
27
30
29
28
28
28
26
29
28
28
30
29
28
30
29
28
30
29
29
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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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