Periscope Point surfForecast / Sumbawa / Indonesia

information circle16 Day Weather and Surf, issued 7 am Sunday 17 May 2026 WITA
Forecast update in hr  min  s Forecast update imminent
Periscope Point surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Periscope Point sea temperature is
28.5° C
(Which is normal for this time of year)

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 Monday (May 18) at 5PM. The primary swell is predicted to be 1.7m and 14s period with a secondary swell of 0.1m and 22s. 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 1.7m 14s and forecast to arrive on Sunday (May 17) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Wednesday (May 20) at 5AM.

Wave TypeTime (WITA) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Mon 18th May)5.5ft (1.7m) 14s
Best Surf 5PM (Mon 18th May)5.5ft (1.7m) 14s
Most Powerful11PM (Sun 17th May)5.5ft (1.7m) 14s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 21mm), heaviest during Tue afternoon. Warm (max 29°C on Sun morning, min 25°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 5mm), mostly falling on Wed afternoon. Warm (max 30°C on Fri afternoon, min 25°C on Wed morning). Wind will be generally light.

Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
2
1
3
2
2
2
1
2
2
2
2
3
2
3
3
2
2
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
SSW
13
1.6
SSW
13
1.7
SSW
14
1.6
SSW
14
1.7
SSW
14
1.3
SSW
13
1.4
SSW
13
1.3
SSW
13
1.3
SSW
12
0.8
SW
18
1
SW
16
1.1
SW
16
1.3
SW
16
1.4
SW
15
1.5
SW
15
1.5
SW
15
1.5
SW
16
1.5
SW
15
1.6
SW
15
1.6
SW
14
1.4
SW
14
Wave Graph
Metric surfscale
Energy kJ
915
915
1099
955
1053
615
649
512
451
379
517
659
803
891
949
1001
1041
924
1020
1006
765
Wind (km/h)
10
S
10
S
5
SSW
10
S
10
S
5
SW
5
ESE
10
NNE
5
N
5
NE
5
ESE
5
NE
5
E
5
ESE
5
NNE
5
SE
10
SSE
5
SSW
10
S
5
S
5
S
cross
cross
cross
cross
cross-off
glassy
glassy
cross-off
cross
glassy
cross-off
glassy
glassy
glassy
glassy
cross-off
cross-off
glassy
cross
cross
cross
High Tide
9:55AM3.18m
10:49PM2.48m
10:35AM3.28m
11:30PM2.46m
11:16AM3.27m
00:13AM2.41m
11:59AM3.16m
00:58AM2.32m
12:45PM2.96m
1:48AM2.23m
1:34PM2.70m
2:47AM2.16m
2:32PM2.40m
3:58AM2.13m
Low Tide
4:39PM-0.05m
4:24AM0.67m
5:20PM-0.11m
5:04AM0.65m
6:03PM-0.06m
5:46AM0.70m
6:47PM0.08m
6:31AM0.80m
7:33PM0.28m
7:22AM0.95m
8:22PM0.52m
8:23AM1.12m
9:18PM0.75m
part cloud
thunderstorm
thunderstorm
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
clear
thunderstorm
clear
clear
part cloud
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:11
6:11
6:11
6:11
6:11
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:53
5:53
5:52
5:52
5:52
5:52
5:52
2
2
1
1
11
4
2
2
1
Temp °C
29
29
26
28
28
26
28
28
25
27
29
26
29
29
27
29
30
26
28
29
26
33
33
30
31
31
31
32
33
28
32
33
30
32
32
32
32
33
30
31
33
31
Swell 1
Height (m)
Direction
Period (s)
1.6
SSW
13
1.6
SSW
13
1.7
SSW
14
1.6
SSW
14
1.7
SSW
14
1.3
SSW
13
1.4
SSW
13
1.3
SSW
13
1.3
SSW
12
1.1
SSW
12
1
SSW
12
1.1
SW
16
1.3
SW
16
1.4
SW
15
1.5
SW
15
1.5
SW
15
1.5
SW
16
1.5
SW
15
1.6
SW
15
1.6
SW
14
1.4
SW
14
Energy kJ
915
915
1099
955
1053
615
649
512
451
353
289
659
803
891
949
1001
1041
924
1020
1006
765
Swell 2
Height (m)
Direction
Period (s)
0.1
SW
24
0.1
SW
22
0.8
SSW
8
0.6
SW
19
0.4
SW
19
0.8
SW
18
0.8
SW
18
1
SW
16
0.9
SSW
13
0.8
SSW
12
0.7
SW
12
0.5
SE
7
0.3
SE
7
0.4
SE
7
0.3
SE
6
0.4
SE
6
0.5
SE
6
0.5
SE
5
Energy kJ
22
18
75
236
133
442
379
517
257
171
135
27
8
15
5
12
16
13
Swell 3
Height (m)
Direction
Period (s)
0.3
SW
21
0.4
SE
4
0.4
SE
5
0.2
SSW
21
0.4
SE
7
0.4
SE
7
0.5
SE
7
0.4
SE
6
0.1
W
16
0.2
S
7
0.2
S
6
0.2
E
6
Energy kJ
72
5
6
44
13
16
21
10
5
3
3
2
Wind waves
Height (m)
Direction
Period (s)
0.6
S
5
0.4
SSE
4
0.8
ENE
6
0.6
ENE
4
0.5
E
7
0.2
E
6
0.4
SE
6
0.4
SE
6
Energy kJ
19
7
42
12
24
3
13
11
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
3
3
2
2
2
3
2
2
2
2
3
2
3
3
2
4
4
3
Distance (km)
2
2
2
2
0
0
0
0
1
0
0
0
0
0
0
0
0
0
2
2
1
Best forecast wave conditions in Sumbawa
Rating
(10 max)
3
3
3
4
4
3
2
3
3
3
3
3
3
3
3
3
3
3
4
4
3
Best forecast wave conditions in Indonesia
Rating
(10 max)
3
4
4
4
4
4
4
3
4
4
3
3
4
3
4
3
4
4
4
4
3
Header Global
Rating
(10 max)
5
6
7
4
5
4
5
4
4
4
5
8
9
9
9
5
4
4
5
5
4
  • Map Icons:
  • Break
  • 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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