Sea weather in Colombo in Sri Lanka All the beach weather in Colombo

All the essential weather information for enjoying the beach in Colombo in Sri Lanka, for swimming, tanning or water sports! Our sea weather data is reliable, easy to read and updated every day.

Weather: When should you go to the beach in Colombo over the next 7 days?

Discover the best moment to go to the beach in Colombo in Sri Lanka this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Colombo. You can see full forecasts by clicking on the day you want to see in the table below.

Date Outside temp. Our opinion
Monday 15 December 202574°F to 81°Fdiscouraged
Tuesday 16 December 202576°F to 81°Fdiscouraged
Wednesday 17 December 202577°F to 81°Frecommended
Thursday 18 December 202577°F to 83°Fdiscouraged
Friday 19 December 202576°F to 83°Fdiscouraged
Saturday 20 December 202576°F to 81°Fdiscouraged
Sunday 21 December 202576°F to 81°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Colombo

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 06:14 and will set at 17:58 on the beach(es) of Colombo. The outside temperature will be a high of 81°F t and a low of 74°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 24.2mph km/h (with gusts up to 29.8mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (76°F)24°C (75°F)24°C (75°F)26°C (78°F)24°C (75°F)25°C (78°F)26°C (78°F)26°C (79°F)
Perceived temperature27°C (80°F)26°C (79°F)26°C (78°F)28°C (82°F)26°C (78°F)27°C (81°F)28°C (83°F)28°C (83°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity84%84%84%76%69%74%79%80%
Barometric pressure1011 hPa1010 hPa1011 hPa1013 hPa1010 hPa1008 hPa1009 hPa1012 hPa
Cloud cover32%22%1%3%0%6%8%18%
Heat index27°C (80°F)26°C (79°F)26°C (78°F)28°C (82°F)26°C (78°F)27°C (81°F)28°C (83°F)28°C (83°F)
Dew point21°C (71°F)21°C (70°F)21°C (69°F)21°C (70°F)18°C (64°F)20°C (69°F)22°C (72°F)22°C (72°F)
Wind
Speed28km/h (17mph)28km/h (17mph)27km/h (17mph)28km/h (17mph)30km/h (18mph)39km/h (24mph)34km/h (21mph)33km/h (21mph)
Gusts38km/h (24mph)38km/h (24mph)38km/h (23mph)36km/h (22mph)31km/h (19mph)42km/h (26mph)39km/h (24mph)48km/h (30mph)
Direction 23°
NNE
23°
NNE
20°
NNE
15°
NNE
344°
NNW
334°
NNW
350°
N
18°
NNE
Wind chill24°C (76°F)24°C (75°F)24°C (75°F)26°C (78°F)24°C (75°F)25°C (78°F)26°C (78°F)26°C (79°F)
Waves
Height1.0m (3.2ft)0.9m (3.1ft)0.9m (3.0ft)0.9m (3.1ft)0.9m (3.1ft)1.4m (4.5ft)1.4m (4.7ft)1.2m (4.0ft)
Direction 300°
WNW
305°
NW
306°
NW
306°
NW
305°
NW
328°
NNW
320°
NW
303°
WNW
Period10.1 sec.11.6 sec.13.8 sec.13.7 sec.13.6 sec.13.5 sec.13.2 sec.12.8 sec.
Significant height0.9m (3ft)0.9m (3ft)0.9m (3ft)1.0m (3.3ft)0.9m (3ft)1.5m (4.9ft)1.3m (4.3ft)1.1m (3.6ft)
Sea water temperature
Water temperature28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 06:15 and will set at 17:59 on the beach(es) of Colombo. The outside temperature will be a high of 81°F t and a low of 76°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 19.3mph km/h (with gusts up to 26.1mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature25°C (77°F)24°C (76°F)24°C (76°F)26°C (79°F)27°C (81°F)27°C (80°F)27°C (80°F)26°C (79°F)
Perceived temperature27°C (81°F)27°C (80°F)27°C (80°F)29°C (84°F)30°C (86°F)30°C (86°F)30°C (86°F)29°C (85°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity84%86%88%80%75%80%84%85%
Barometric pressure1011 hPa1009 hPa1011 hPa1012 hPa1010 hPa1008 hPa1010 hPa1011 hPa
Cloud cover11%38%21%46%77%88%76%75%
Heat index27°C (81°F)27°C (80°F)27°C (80°F)29°C (84°F)30°C (86°F)30°C (86°F)30°C (86°F)29°C (85°F)
Dew point22°C (72°F)22°C (71°F)22°C (72°F)22°C (72°F)22°C (72°F)23°C (74°F)24°C (75°F)23°C (74°F)
Wind
Speed31km/h (19mph)25km/h (16mph)25km/h (15mph)25km/h (15mph)25km/h (15mph)30km/h (18mph)26km/h (16mph)14km/h (9mph)
Gusts42km/h (26mph)36km/h (22mph)35km/h (22mph)32km/h (20mph)36km/h (22mph)42km/h (26mph)39km/h (24mph)22km/h (14mph)
Direction 29°
NNE
23°
NNE
23°
NNE
20°
NNE
348°
NNW
338°
NNW
355°
N
29°
NNE
Wind chill25°C (77°F)24°C (76°F)24°C (76°F)26°C (79°F)27°C (81°F)27°C (80°F)27°C (80°F)26°C (79°F)
Waves
Height1.0m (3.3ft)0.9m (3.0ft)0.8m (2.7ft)0.9m (2.9ft)0.8m (2.7ft)1.1m (3.5ft)1.0m (3.3ft)0.8m (2.8ft)
Direction 302°
WNW
229°
SW
228°
SW
228°
SW
228°
SW
229°
SW
229°
SW
228°
SW
Period12.7 sec.12.6 sec.12.5 sec.12.2 sec.12.0 sec.15.9 sec.15.8 sec.5.8 sec.
Significant height0.9m (3ft)0.9m (3ft)0.9m (3ft)1.0m (3.3ft)0.8m (2.6ft)1.3m (4.3ft)0.8m (2.6ft)0.8m (2.6ft)
Sea water temperature
Water temperature28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 06:15 and will set at 17:59 on the beach(es) of Colombo. The outside temperature will be a high of 81°F t and a low of 77°F. Precipitation is in the forecast (0.1in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 11.8mph km/h (with gusts up to 19.3mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature26°C (78°F)26°C (78°F)25°C (77°F)26°C (79°F)26°C (79°F)27°C (81°F)27°C (81°F)26°C (79°F)
Perceived temperature28°C (83°F)28°C (83°F)28°C (82°F)29°C (85°F)29°C (84°F)31°C (87°F)31°C (87°F)29°C (84°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity86%85%88%82%78%81%81%84%
Barometric pressure1010 hPa1009 hPa1011 hPa1012 hPa1010 hPa1008 hPa1010 hPa1012 hPa
Cloud cover85%73%65%33%72%83%75%72%
Heat index28°C (83°F)28°C (83°F)28°C (82°F)29°C (85°F)29°C (84°F)31°C (87°F)31°C (87°F)29°C (84°F)
Dew point23°C (74°F)23°C (73°F)23°C (73°F)23°C (73°F)22°C (72°F)23°C (74°F)24°C (75°F)23°C (74°F)
Wind
Speed10km/h (6mph)11km/h (7mph)9km/h (6mph)11km/h (7mph)15km/h (9mph)19km/h (12mph)13km/h (8mph)13km/h (8mph)
Gusts15km/h (9mph)16km/h (10mph)14km/h (9mph)15km/h (9mph)23km/h (14mph)31km/h (19mph)22km/h (14mph)20km/h (13mph)
Direction 105°
ESE
130°
SE
46°
NE
345°
NNW
321°
NW
339°
NNW
22°
NNE
54°
NE
Wind chill26°C (78°F)26°C (78°F)25°C (77°F)26°C (79°F)26°C (79°F)27°C (81°F)27°C (81°F)26°C (79°F)
Waves
Height0.8m (2.6ft)0.7m (2.4ft)0.7m (2.3ft)0.6m (2.1ft)0.6m (2.1ft)0.7m (2.2ft)0.8m (2.6ft)0.8m (2.6ft)
Direction 228°
SW
228°
SW
229°
SW
229°
SW
229°
SW
229°
SW
229°
SW
229°
SW
Period5.7 sec.5.7 sec.5.6 sec.15.4 sec.15.3 sec.4.8 sec.5.2 sec.5.5 sec.
Significant height0.8m (2.6ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)1.0m (3.3ft)0.9m (3ft)
Sea water temperature
Water temperature28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 06:16 and will set at 17:59 on the beach(es) of Colombo. The outside temperature will be a high of 83°F t and a low of 77°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 16.8mph km/h (with gusts up to 24.9mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature25°C (78°F)25°C (77°F)25°C (76°F)26°C (79°F)27°C (81°F)27°C (81°F)27°C (80°F)25°C (78°F)
Perceived temperature28°C (83°F)28°C (82°F)27°C (81°F)29°C (84°F)30°C (86°F)30°C (87°F)30°C (86°F)28°C (82°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity87%87%87%80%71%75%79%85%
Barometric pressure1011 hPa1010 hPa1011 hPa1013 hPa1010 hPa1008 hPa1010 hPa1012 hPa
Cloud cover87%32%26%22%72%80%70%23%
Heat index28°C (83°F)28°C (82°F)27°C (81°F)29°C (84°F)30°C (86°F)30°C (87°F)30°C (86°F)28°C (82°F)
Dew point23°C (73°F)23°C (73°F)22°C (72°F)22°C (72°F)22°C (71°F)23°C (73°F)23°C (73°F)23°C (73°F)
Wind
Speed12km/h (8mph)13km/h (8mph)14km/h (9mph)13km/h (8mph)9km/h (6mph)4km/h (2mph)10km/h (6mph)27km/h (17mph)
Gusts18km/h (11mph)19km/h (12mph)20km/h (12mph)16km/h (10mph)14km/h (9mph)6km/h (4mph)15km/h (9mph)40km/h (25mph)
Direction 48°
NE
31°
NNE
40°
NE
39°
NE
346°
NNW
327°
NNW
43°
NE
32°
NNE
Wind chill25°C (78°F)25°C (77°F)25°C (76°F)26°C (79°F)27°C (81°F)27°C (81°F)27°C (80°F)25°C (78°F)
Waves
Height0.7m (2.4ft)0.7m (2.2ft)0.7m (2.2ft)0.7m (2.2ft)0.7m (2.2ft)0.7m (2.3ft)0.8m (2.6ft)0.9m (2.8ft)
Direction 229°
SW
229°
SW
230°
SW
230°
SW
230°
SW
230°
SW
230°
SW
231°
SW
Period5.5 sec.5.3 sec.13.8 sec.5.5 sec.5.8 sec.5.8 sec.6.0 sec.13.1 sec.
Significant height0.6m (2ft)0.5m (1.6ft)0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)0.8m (2.6ft)0.7m (2.3ft)0.9m (3ft)
Sea water temperature
Water temperature28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 06:16 and will set at 18:00 on the beach(es) of Colombo. The outside temperature will be a high of 83°F t and a low of 76°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 16.8mph km/h (with gusts up to 24.9mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature25°C (77°F)25°C (76°F)24°C (76°F)26°C (78°F)28°C (82°F)27°C (81°F)27°C (80°F)26°C (78°F)
Perceived temperature27°C (81°F)27°C (80°F)26°C (80°F)28°C (83°F)31°C (87°F)31°C (87°F)30°C (86°F)28°C (83°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity84%84%85%79%71%79%79%80%
Barometric pressure1011 hPa1010 hPa1011 hPa1012 hPa1010 hPa1008 hPa1009 hPa1011 hPa
Cloud cover22%29%27%53%72%54%57%51%
Heat index27°C (81°F)27°C (80°F)26°C (80°F)28°C (83°F)31°C (87°F)31°C (87°F)30°C (86°F)28°C (83°F)
Dew point22°C (72°F)22°C (71°F)22°C (71°F)22°C (72°F)22°C (72°F)23°C (74°F)23°C (73°F)22°C (72°F)
Wind
Speed26km/h (16mph)27km/h (17mph)26km/h (16mph)24km/h (15mph)22km/h (13mph)26km/h (16mph)23km/h (14mph)22km/h (14mph)
Gusts36km/h (22mph)38km/h (24mph)36km/h (23mph)32km/h (20mph)32km/h (20mph)40km/h (25mph)34km/h (21mph)33km/h (20mph)
Direction 25°
NNE
22°
NNE
24°
NNE
20°
NNE
349°
NNW
336°
NNW
245°
WSW
22°
NNE
Wind chill25°C (77°F)25°C (76°F)24°C (76°F)26°C (78°F)28°C (82°F)27°C (81°F)27°C (80°F)26°C (78°F)
Waves
Height1.1m (3.6ft)1.1m (3.6ft)1.4m (4.7ft)1.4m (4.4ft)1.3m (4.1ft)1.2m (3.9ft)1.2m (3.9ft)1.3m (4.3ft)
Direction 231°
SW
231°
SW
210°
SSW
208°
SSW
207°
SSW
207°
SSW
207°
SSW
206°
SSW
Period12.8 sec.6.6 sec.12.7 sec.12.4 sec.12.2 sec.12.0 sec.10.0 sec.8.1 sec.
Significant height1.1m (3.6ft)1.1m (3.6ft)1.2m (3.9ft)1.1m (3.6ft)0.9m (3ft)0.9m (3ft)0.8m (2.6ft)0.7m (2.3ft)
Sea water temperature
Water temperature28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)

Sea weather on Saturday 20 December 2025

On Saturday 20 December 2025, the sun will rise at 06:17 and will set at 18:00 on the beach(es) of Colombo. The outside temperature will be a high of 81°F t and a low of 76°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 16.8mph km/h (with gusts up to 26.1mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature25°C (76°F)24°C (75°F)24°C (76°F)25°C (78°F)27°C (80°F)27°C (80°F)27°C (80°F)26°C (78°F)
Perceived temperature27°C (80°F)26°C (79°F)26°C (79°F)27°C (81°F)29°C (84°F)30°C (85°F)29°C (85°F)28°C (82°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%85%83%78%71%74%75%75%
Barometric pressure1010 hPa1009 hPa1010 hPa1011 hPa1009 hPa1008 hPa1009 hPa1010 hPa
Cloud cover57%73%64%55%55%66%71%40%
Heat index27°C (80°F)26°C (79°F)26°C (79°F)27°C (81°F)29°C (84°F)30°C (85°F)29°C (85°F)28°C (82°F)
Dew point22°C (71°F)21°C (70°F)21°C (70°F)21°C (70°F)21°C (70°F)22°C (71°F)22°C (72°F)21°C (70°F)
Wind
Speed21km/h (13mph)22km/h (13mph)22km/h (14mph)20km/h (13mph)19km/h (12mph)26km/h (16mph)27km/h (17mph)26km/h (16mph)
Gusts31km/h (19mph)30km/h (19mph)30km/h (19mph)27km/h (17mph)27km/h (17mph)39km/h (24mph)42km/h (26mph)38km/h (23mph)
Direction 23°
NNE
23°
NNE
24°
NNE
133°
SE
345°
NNW
336°
NNW
230°
SW

N
Wind chill25°C (76°F)24°C (75°F)24°C (76°F)25°C (78°F)27°C (80°F)27°C (80°F)27°C (80°F)26°C (78°F)
Waves
Height1.3m (4.3ft)1.3m (4.3ft)1.2m (3.9ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.2m (3.9ft)1.3m (4.3ft)
Direction 206°
SSW
202°
SSW
194°
SSW
194°
SSW
195°
SSW
192°
SSW
186°
S
186°
S
Period11.8 sec.11.4 sec.10.7 sec.9.3 sec.7.4 sec.10.4 sec.10.0 sec.9.8 sec.
Significant height1.0m (3.3ft)1.0m (3.3ft)0.9m (3ft)0.9m (3ft)0.9m (3ft)1.0m (3.3ft)1.0m (3.3ft)1.1m (3.6ft)
Sea water temperature
Water temperature28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)

Sea weather on Sunday 21 December 2025

On Sunday 21 December 2025, the sun will rise at 06:17 and will set at 18:01 on the beach(es) of Colombo. The outside temperature will be a high of 81°F t and a low of 76°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 17.4mph km/h (with gusts up to 26.7mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (76°F)24°C (75°F)24°C (75°F)25°C (77°F)27°C (80°F)27°C (81°F)27°C (80°F)26°C (78°F)
Perceived temperature26°C (79°F)26°C (79°F)26°C (79°F)27°C (80°F)28°C (83°F)29°C (84°F)29°C (84°F)28°C (82°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity78%78%77%72%65%68%72%74%
Barometric pressure1010 hPa1009 hPa1010 hPa1011 hPa1010 hPa1008 hPa1009 hPa1011 hPa
Cloud cover44%70%64%42%30%21%18%19%
Heat index26°C (79°F)26°C (79°F)26°C (79°F)27°C (80°F)28°C (83°F)29°C (84°F)29°C (84°F)28°C (82°F)
Dew point20°C (69°F)20°C (68°F)20°C (68°F)20°C (67°F)20°C (67°F)21°C (69°F)21°C (70°F)21°C (69°F)
Wind
Speed26km/h (16mph)26km/h (16mph)26km/h (16mph)25km/h (16mph)24km/h (15mph)28km/h (18mph)27km/h (17mph)23km/h (14mph)
Gusts37km/h (23mph)36km/h (23mph)35km/h (22mph)34km/h (21mph)36km/h (22mph)43km/h (27mph)42km/h (26mph)35km/h (21mph)
Direction 17°
NNE
20°
NNE
21°
NNE
16°
NNE
114°
ESE
340°
NNW
232°
SW
15°
NNE
Wind chill24°C (76°F)24°C (75°F)24°C (75°F)25°C (77°F)27°C (80°F)27°C (81°F)27°C (80°F)26°C (78°F)
Waves
Height1.3m (4.3ft)1.3m (4.3ft)1.3m (4.3ft)1.2m (3.9ft)1.2m (3.9ft)1.2m (3.9ft)1.2m (3.9ft)1.2m (3.9ft)
Direction 186°
S
185°
S
184°
S
183°
S
182°
S
182°
S
180°
S
178°
S
Period9.7 sec.9.7 sec.9.8 sec.9.8 sec.9.8 sec.9.8 sec.9.7 sec.10.0 sec.
Significant height1.2m (3.9ft)1.2m (3.9ft)1.2m (3.9ft)1.2m (3.9ft)1.1m (3.6ft)1.2m (3.9ft)1.1m (3.6ft)1.1m (3.6ft)
Sea water temperature
Water temperature28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)28°C (83°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

Change units