The Cave surfForecast / East / Sri Lanka

information circle16 Day Weather and Surf, issued 10 pm Wednesday 20 May 2026 +0530
Forecast update in hr  min  s Forecast update imminent
The Cave surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Cave sea temperature is
29.7° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for The Cave this week:

The most powerful waves expected at The Cave in the next 16 days are 1.5m 18s and forecast to arrive on Wednesday (May 27) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (+0530) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11AM (Wed 27th May)5ft (1.5m) 18s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Thu night. Warm (max 31°C on Thu afternoon, min 26°C on Fri night). Mainly strong winds.

Days 5-7 Weather Summary

Light rain (total 6mm), mostly falling on Mon afternoon. Warm (max 32°C on Sun morning, min 26°C on Sat night). Winds increasing (light winds from the WSW on Mon afternoon, fresh winds from the SW by Tue afternoon).

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)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
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)
1.1
SW
6
0.7
SSE
10
0.6
SSW
16
0.6
SSW
15
0.6
SSW
14
1.7
SSW
7
0.8
SSW
16
0.8
SSW
14
0.8
SSW
14
0.6
SSW
13
1.3
SSW
6
1.5
SSW
7
1.2
SSW
6
0.5
SSW
16
0.7
SSW
18
0.9
SSW
16
1.1
SSW
16
1.2
SSW
15
1.1
SSW
14
1.5
SSW
18
1.2
SSW
16
Wave Graph
Metric surfscale
Energy kJ
89
110
169
142
140
237
277
239
236
141
135
186
99
149
322
463
568
612
472
1302
817
Wind (km/h)
25
WSW
25
WSW
25
WSW
30
WSW
35
SW
35
SW
30
WSW
35
SW
30
WSW
30
WSW
35
SW
30
SW
30
WSW
25
SW
15
SW
35
WSW
30
SW
35
SW
25
WSW
35
SW
35
SW
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
12:55PM0.18m
12:40PM0.19m
12:39PM0.20m
12:44PM0.20m
12:51PM0.20m
2:37AM0.11m
12:58PM0.20m
2:50AM0.13m
1:08PM0.20m
Low Tide
11:01PM0.04m
11:05PM0.04m
10:55PM0.05m
10:15PM0.06m
9:18PM0.06m
8:42PM0.06m
5:51AM0.10m
8:27PM0.05m
6:42AM0.11m
8:28PM0.03m
part cloud
part cloud
part cloud
thunderstorm
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
mod rain
part cloud
part cloud
part cloud
thunderstorm
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:46
5:46
5:46
5:46
5:46
5:46
5:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:12
6:13
6:13
6:13
6:13
6:13
6:14
1
6
1
Temp °C
28
30
31
28
31
31
27
31
31
28
32
32
28
32
32
28
32
32
28
32
32
28
29
30
29
29
29
26
29
28
28
30
30
28
32
34
27
31
29
27
30
30
Swell 1
Height (m)
Direction
Period (s)
0.6
SSE
10
0.7
SSE
10
0.7
SSE
10
0.5
SSE
10
0.6
SSW
14
0.6
SSW
16
0.8
SSW
16
0.8
SSW
14
0.8
SSW
14
0.6
SSW
13
0.6
SSW
13
0.6
SSW
13
0.5
SSW
12
0.5
SSW
16
0.7
SSW
18
0.9
SSW
16
1.1
SSW
16
1.2
SSW
15
1.1
SSW
14
1.5
SSW
18
1.2
SSW
16
Energy kJ
86
110
104
54
140
201
277
239
236
141
135
133
83
149
322
463
568
612
472
1302
817
Swell 2
Height (m)
Direction
Period (s)
0.4
SW
14
0.4
SSW
16
0.6
SSW
16
0.6
SSW
15
0.5
SSE
9
0.4
SSE
9
0.4
SSE
8
0.5
SSE
8
0.5
SSE
9
0.4
SSE
9
0.1
S
18
0.2
SSW
18
0.4
SE
8
0.5
SSW
12
0.5
SSW
12
0.4
SE
8
0.1
S
11
0.1
S
22
0.5
S
20
1.1
SSW
18
0.7
SSW
13
Energy kJ
46
102
169
142
50
32
28
36
43
30
7
31
17
81
82
15
2
9
196
808
147
Swell 3
Height (m)
Direction
Period (s)
0.4
SSE
12
0.4
SW
13
0.1
S
20
0.3
S
11
0.4
SSW
18
0.3
SW
13
0.2
S
10
0.2
S
10
0.4
SE
9
0.1
S
14
0.1
S
13
0.1
S
13
0.3
SSW
17
0.4
SE
8
0.4
SE
8
0.4
SSW
11
0.2
SSE
10
0.4
SE
8
Energy kJ
50
45
8
22
102
27
8
8
22
4
3
3
56
17
16
40
9
16
Wind waves
Height (m)
Direction
Period (s)
1.1
SW
6
1
SW
6
1
SW
6
1
SW
6
1.3
SSW
6
1.7
SSW
7
1.3
SSW
6
1.3
SSW
6
1.4
SSW
7
1.1
SW
6
1.3
SSW
6
1.5
SSW
7
1.2
SSW
6
1.2
SSW
6
1.5
SSW
6
1.2
SSW
6
1.4
SSW
6
1.6
SSW
7
1.2
SSW
6
1.4
SSW
6
1.4
SSW
6
Energy kJ
89
73
68
68
132
237
130
128
175
85
115
186
99
99
181
99
170
223
114
155
170
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
2
3
3
4
Distance (km)
45
43
45
45
45
1801
45
45
45
45
45
35
46
35
43
1323
45
43
45
43
43
Best forecast wave conditions in East Sri Lanka
Rating
(10 max)
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
4
Best forecast wave conditions in Sri Lanka
Rating
(10 max)
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
4
Header Global
Rating
(10 max)
4
5
5
5
7
6
5
5
9
6
5
5
4
4
4
5
4
4
4
4
5
  • 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 The Cave Surf forecast

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

The Cave is 78 km (48 miles) from Hambantota. If you plan a holiday in East Sri Lanka, look for hotels and other accommodation in Hambantota. Hambantota has rooms for a wide range of budgets as well as car hire and transport links.

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