Cement Factory surfForecast / Sumbawa / Indonesia

information circle16 Day Weather and Surf, issued 7 pm Wednesday 20 May 2026 WITA
Forecast update in hr  min  s Forecast update imminent
Cement Factory surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cement Factory sea temperature is
30.6° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Cement Factory this week:

The surf forecast for Cement Factory over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (May 21) at 5AM. The primary swell is predicted to be 0.7m and 16s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Cement Factory in the next 16 days are 0.9m 16s and forecast to arrive on Friday (May 22) at 2PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 7s period and expected on Monday (May 25) at 8AM.

Wave TypeTime (WITA) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Thu 21st May)2.5ft (0.7m) 16s
Best Surf 8PM (Thu 21st May)3ft (0.9m) 15s
Most Powerful 2PM (Fri 22nd May)3ft (0.9m) 16s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 3mm), mostly falling on Fri night. Warm (max 30°C on Wed night, min 28°C on Sat morning). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 25mm), heaviest during Tue morning. Warm (max 29°C on Sat night, min 27°C on Tue morning). Wind will be generally light.

Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
Wed
27
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
1
1
1
2
2
2
2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
Wave
Height (m)
Direction
Period (s)
0.6
SSW
16
0.7
SW
16
0.9
SSW
15
0.9
SSW
15
0.8
SSW
15
0.9
SSW
15
0.9
SSW
15
0.9
SSW
15
0.8
SSW
14
0.8
SSW
14
0.7
SSW
14
0.5
SSW
13
0.1
W
14
1.5
SSE
8
0.1
SW
18
0.2
SSW
17
0.4
SSW
17
0.4
SSW
17
0.6
SSW
16
0.7
SSW
16
0.7
SSW
15
Wave Graph
Metric surfscale
Energy kJ
175
251
344
344
302
362
334
339
268
223
161
0
4
0
13
27
115
117
169
220
191
Wind (km/h)
10
E
5
ESE
20
SE
10
ESE
10
ESE
5
ESE
0
ESE
5
SSE
5
WNW
5
WSW
5
WSW
10
W
10
W
15
WSW
15
WNW
15
WSW
20
SW
25
WSW
25
WSW
25
WSW
30
SW
off
cross-off
cross-off
off
off
glassy
glassy
glassy
glassy
on
cross-on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
12:32PM1.86m
1:24PM1.74m
2:20PM1.57m
3:26PM1.37m
8:37AM1.12m
4:59PM1.18m
8:06AM1.20m
7:02PM1.02m
8:05AM1.30m
Low Tide
8:58PM-0.03m
9:58PM0.07m
10:54PM0.19m
11:43PM0.34m
00:20AM0.48m
12:05PM1.08m
00:45AM0.63m
2:22PM0.90m
00:59AM0.75m
3:26PM0.71m
clear
clear
clear
clear
clear
clear
rain showers
thunderstorm
clear
clear
clear
clear
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:52
5:52
5:52
5:52
5:52
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:24
6:25
6:25
6:25
6:25
6:27
6:27
6:27
2
1
1
2
4
11
7
10
4
Temp °C
30
29
30
30
29
30
30
29
29
29
29
29
29
28
28
29
28
27
28
28
28
34
33
32
33
32
35
35
34
34
34
34
32
32
31
30
32
30
28
29
28
28
Swell 1
Height (m)
Direction
Period (s)
0.7
SSW
11
0.7
SW
16
0.9
SSW
15
0.9
SSW
15
0.8
SSW
15
0.9
SSW
15
0.9
SSW
15
0.9
SSW
15
0.8
SSW
14
0.8
SSW
14
0.8
SSE
7
0.5
SSW
13
0.8
SSE
7
1
S
8
0.4
SSW
13
1
S
8
0.9
SSE
8
0.9
SSE
8
0.7
SSE
8
0.7
SSW
16
0.7
SSW
15
Energy kJ
128
251
344
344
302
362
334
339
268
223
50
98
71
118
55
140
99
102
63
220
191
Swell 2
Height (m)
Direction
Period (s)
0.6
SSW
16
0.6
SSW
11
0.4
SE
7
0.3
SE
7
0.2
SSE
7
0.2
SSE
7
0.2
SSE
7
0.2
SSE
6
0.4
SSE
6
0.5
SSE
7
0.7
SSW
14
0.5
SSW
13
0.5
SSW
13
0.1
SW
18
0.4
SSW
12
0.4
SSW
17
0.4
SSW
17
0.6
SSW
16
0.6
SSE
7
0.2
SSW
20
Energy kJ
175
100
14
8
5
5
4
4
12
25
161
98
101
13
50
115
117
169
41
41
Swell 3
Height (m)
Direction
Period (s)
0.6
SE
8
0.4
SE
8
0.6
SE
8
0.1
W
16
0.1
W
14
0.1
S
18
0.1
W
14
0.2
SSW
17
0.4
SSW
12
0.4
SSW
12
0.3
SSW
11
0.1
SW
22
0.2
SSW
10
Energy kJ
49
17
49
5
4
6
4
27
47
45
23
19
10
Wind waves
Height (m)
Direction
Period (s)
0.4
SE
8
0.3
NNE
3
0.6
SE
7
0.6
SE
6
1
SE
6
1
SE
6
1.2
SE
6
0.9
SSE
6
1.2
SSE
7
1.5
SSE
8
1.2
SSE
8
1.4
SSE
7
1.4
SSE
7
1.1
SE
7
0.8
SSE
7
Energy kJ
15
2
33
27
58
75
120
57
148
263
202
207
207
109
51
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
2
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
2
Distance (km)
0
0
942
0
0
0
0
0
0
940
942
942
940
917
942
940
942
940
940
942
942
Best forecast wave conditions in Sumbawa
Rating
(10 max)
3
3
3
3
3
3
3
3
3
3
2
2
2
2
2
3
2
3
3
3
3
Best forecast wave conditions in Indonesia
Rating
(10 max)
4
3
4
3
4
3
4
4
3
3
3
2
2
2
2
3
3
4
4
4
4
Header Global
Rating
(10 max)
4
5
5
5
5
7
6
5
5
9
6
5
5
4
4
5
5
4
5
5
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
submit an eyeball surf report

Quick surf report for Cement Factory:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Cement Factory surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Information about the Cement Factory Surf forecast

The above surf forecast table for Cement Factory provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cement Factory can be found by selecting the local surf guide option on the grey menu. Our Cement Factory 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 (Cement Factory) 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 Cement Factory 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.

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest