The Cave surfForecast / East / Sri Lanka

information circle16 Day Weather and Surf, issued 10 pm Monday 18 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
29.9° 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 1.0m 16s and forecast to arrive on Tuesday (May 26) at 5AM. 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 Powerful 5AM (Tue 26th May)3.5ft (1.0m) 16s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 34°C on Thu afternoon, min 27°C on Mon night). Mainly fresh winds.

Days 5-7 Weather Summary

Some drizzle, heaviest during Sat night. Warm (max 33°C on Fri afternoon, min 27°C on Thu night). Mainly fresh winds.

Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Mon
25
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
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
SSW
7
0.8
S
12
0.8
S
11
0.8
S
10
0.5
SW
15
1.2
SW
6
0.6
SSE
10
0.7
SSE
10
0.6
SSW
16
0.6
SSW
15
0.6
SSW
14
1.6
SW
7
0.7
SSW
16
1.6
SSW
8
1
SSW
14
0.6
SSW
13
1.3
SSW
6
1.5
SSW
6
0.5
SSW
12
0.5
SSW
16
0.7
SSW
18
Wave Graph
Metric surfscale
Energy kJ
147
180
160
141
106
109
86
110
169
142
140
220
215
311
394
141
136
193
83
151
318
Wind (km/h)
30
WSW
30
SW
35
SW
25
WSW
30
WSW
25
WSW
25
WSW
30
WSW
25
WSW
30
WSW
35
WSW
35
WSW
30
WSW
25
WSW
25
SW
25
WSW
35
SW
35
SW
35
WSW
30
SW
30
SW
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
6:15AM0.16m
2:50PM0.18m
2:06PM0.18m
12:55PM0.18m
12:40PM0.19m
12:39PM0.20m
12:44PM0.20m
12:51PM0.20m
Low Tide
10:37PM0.02m
9:42AM0.14m
10:51PM0.03m
11:01PM0.04m
11:05PM0.04m
10:55PM0.05m
10:15PM0.06m
9:18PM0.06m
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
thunderstorm
part cloud
part cloud
part cloud
part cloud
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
6:12
6:12
6:13
6:13
6:13
6:13
1
Temp °C
27
31
31
28
32
33
28
33
34
29
32
33
28
32
33
28
31
32
28
30
31
27
30
29
28
31
31
27
32
33
29
30
32
26
31
33
28
30
31
28
29
29
Swell 1
Height (m)
Direction
Period (s)
0.7
S
12
0.8
S
12
0.8
S
11
0.8
S
10
0.7
SSE
10
0.6
SSE
10
0.6
SSE
10
0.7
SSE
10
0.7
SSE
10
0.5
SSE
10
0.6
SSW
14
0.6
SSW
16
0.7
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
Energy kJ
145
180
160
141
106
83
86
110
104
54
140
201
215
239
236
141
135
133
83
151
318
Swell 2
Height (m)
Direction
Period (s)
0.5
S
17
0.5
S
16
0.5
S
16
0.5
SW
16
0.5
SW
15
0.4
SSW
15
0.4
SW
14
0.4
SSW
16
0.6
SSW
16
0.6
SSW
15
0.4
SSE
9
0.4
SSE
9
0.2
S
10
1
SSW
14
0.1
SE
9
0.1
S
18
0.3
SE
9
0.4
SSE
8
0.5
SSW
12
0.4
SSW
12
Energy kJ
147
126
124
124
104
84
46
102
169
142
35
32
8
394
3
6
12
24
82
56
Swell 3
Height (m)
Direction
Period (s)
0.4
SW
16
0.4
SSW
18
0.3
SSW
18
0.4
SSE
14
0.5
S
13
0.4
SSE
12
0.4
SSE
12
0.4
SW
13
0.1
S
20
0.3
SSE
11
0.3
SSW
18
0.2
S
11
0.2
SSW
18
0.3
SSW
17
0.4
SSE
8
0.4
SSE
8
Energy kJ
64
121
61
63
85
50
50
45
8
25
60
9
31
57
23
23
Wind waves
Height (m)
Direction
Period (s)
1.3
SSW
7
1.1
SSW
7
1.3
SSW
6
0.9
SSW
6
0.9
SSW
6
1.2
SW
6
0.9
SW
6
0.9
SW
6
1.2
SW
6
1.1
SW
6
1.4
SW
6
1.6
SW
7
1.3
SSW
6
1.6
SSW
8
1.5
SSW
7
1.1
SSW
7
1.3
SSW
6
1.5
SSW
6
1
SSW
6
1.3
SSW
6
1.3
SSW
6
Energy kJ
137
99
119
51
57
109
60
51
116
80
139
220
149
311
223
107
136
193
80
128
128
Nearest Offshore or Glassy
Rating
(10 max)
3
2
1
2
2
2
2
2
2
2
2
3
2
2
3
2
2
1
2
2
2
Distance (km)
639
45
1269
45
35
35
35
35
43
45
45
43
46
35
35
45
45
699
452
45
43
Best forecast wave conditions in East Sri Lanka
Rating
(10 max)
2
2
2
2
2
2
3
2
2
3
2
3
3
2
2
2
3
Best forecast wave conditions in Sri Lanka
Rating
(10 max)
2
2
2
2
2
2
3
2
2
3
2
3
3
2
2
2
3
Header Global
Rating
(10 max)
4
4
4
5
5
5
4
4
4
5
5
7
5
5
7
9
5
4
4
5
6
  • 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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