Sea weather in Playa Arenillas in Costa Rica All the beach weather in Playa Arenillas

All the essential weather information for enjoying the beach in Playa Arenillas in Costa Rica, 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 Playa Arenillas over the next 7 days?

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

Date Outside temp. Our opinion
Wednesday 28 January 202676°F to 86°Fdiscouraged
Thursday 29 January 202674°F to 83°Fdiscouraged
Friday 30 January 202674°F to 83°Fdiscouraged
Saturday 31 January 202676°F to 85°Fdiscouraged
Sunday 1 February 202674°F to 83°Fnot recommended
Monday 2 February 202672°F to 77°Fdiscouraged
Tuesday 3 February 202670°F to 79°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Playa Arenillas

Sea weather on Wednesday 28 January 2026

On Wednesday 28 January 2026, the sun will rise at 06:06 and will set at 17:46 on the beach(es) of Playa Arenillas. The outside temperature will be a high of 86°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 21.1mph). Wave height will be up to 3ft 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)27°C (80°F)25°C (77°F)28°C (83°F)28°C (82°F)26°C (79°F)
Perceived temperature27°C (80°F)27°C (80°F)26°C (79°F)28°C (83°F)26°C (79°F)29°C (85°F)29°C (85°F)28°C (82°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity76%76%78%67%60%55%57%67%
Barometric pressure1013 hPa1013 hPa1013 hPa1015 hPa1013 hPa1009 hPa1011 hPa1015 hPa
Cloud cover2%0%7%30%15%15%0%2%
Heat index27°C (80°F)27°C (80°F)26°C (79°F)28°C (83°F)26°C (79°F)29°C (85°F)29°C (85°F)28°C (82°F)
Dew point20°C (69°F)20°C (68°F)20°C (68°F)20°C (68°F)17°C (62°F)18°C (65°F)19°C (65°F)20°C (67°F)
Wind
Speed22km/h (13mph)15km/h (9mph)16km/h (10mph)13km/h (8mph)17km/h (10mph)28km/h (17mph)24km/h (15mph)21km/h (13mph)
Gusts32km/h (20mph)23km/h (15mph)24km/h (15mph)17km/h (11mph)19km/h (12mph)31km/h (19mph)25km/h (15mph)34km/h (21mph)
Direction 52°
NE
51°
NE
65°
ENE
56°
NE
16°
NNE
40°
NE
50°
NE
60°
ENE
Wind chill25°C (77°F)25°C (76°F)24°C (76°F)27°C (80°F)25°C (77°F)28°C (83°F)28°C (82°F)26°C (79°F)
Waves
Height0.6m (1.9ft)0.6m (1.9ft)0.7m (2.3ft)0.6m (2.0ft)0.7m (2.3ft)0.8m (2.7ft)0.9m (2.8ft)0.7m (2.2ft)
Direction 237°
WSW
240°
WSW
244°
WSW
245°
WSW
241°
WSW
244°
WSW
242°
WSW
240°
WSW
Period12.5 sec.12.5 sec.12.3 sec.12.1 sec.11.8 sec.12.5 sec.12.1 sec.11.5 sec.
Significant height0.7m (2.3ft)0.8m (2.6ft)0.9m (3ft)0.6m (2ft)1.0m (3.3ft)1.2m (3.9ft)1.2m (3.9ft)0.7m (2.3ft)
Sea water temperature
Water temperature26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)

Sea weather on Thursday 29 January 2026

On Thursday 29 January 2026, the sun will rise at 06:06 and will set at 17:46 on the beach(es) of Playa Arenillas. The outside temperature will be a high of 83°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 21.1mph km/h (with gusts up to 31.7mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature25°C (77°F)25°C (76°F)25°C (76°F)26°C (79°F)27°C (80°F)26°C (79°F)26°C (78°F)25°C (77°F)
Perceived temperature27°C (80°F)26°C (80°F)27°C (80°F)28°C (82°F)28°C (83°F)27°C (81°F)27°C (81°F)27°C (80°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity75%78%76%68%64%61%71%74%
Barometric pressure1014 hPa1012 hPa1013 hPa1014 hPa1012 hPa1009 hPa1010 hPa1013 hPa
Cloud cover10%25%43%21%17%10%11%21%
Heat index27°C (80°F)26°C (80°F)27°C (80°F)28°C (82°F)28°C (83°F)27°C (81°F)27°C (81°F)27°C (80°F)
Dew point20°C (68°F)20°C (69°F)20°C (68°F)20°C (68°F)19°C (67°F)18°C (65°F)20°C (68°F)20°C (68°F)
Wind
Speed27km/h (17mph)31km/h (19mph)32km/h (20mph)31km/h (19mph)34km/h (21mph)33km/h (20mph)32km/h (20mph)26km/h (16mph)
Gusts40km/h (25mph)45km/h (28mph)44km/h (28mph)39km/h (24mph)51km/h (31mph)36km/h (23mph)36km/h (22mph)37km/h (23mph)
Direction 53°
NE
45°
NE
41°
NE
51°
NE
37°
NE
42°
NE
43°
NE
58°
ENE
Wind chill25°C (77°F)25°C (76°F)25°C (76°F)26°C (79°F)27°C (80°F)26°C (79°F)26°C (78°F)25°C (77°F)
Waves
Height0.8m (2.6ft)0.9m (3.1ft)1.0m (3.3ft)1.0m (3.1ft)1.0m (3.3ft)0.9m (3.0ft)1.0m (3.2ft)0.9m (3.0ft)
Direction 238°
WSW
245°
WSW
241°
WSW
237°
WSW
236°
SW
235°
SW
235°
SW
237°
WSW
Period13.3 sec.12.9 sec.11.5 sec.15.7 sec.15.6 sec.15.5 sec.15.4 sec.15.1 sec.
Significant height1.2m (3.9ft)1.7m (5.6ft)1.4m (4.6ft)1.3m (4.3ft)1.4m (4.6ft)1.3m (4.3ft)1.5m (4.9ft)1.2m (3.9ft)
Sea water temperature
Water temperature28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)

Sea weather on Friday 30 January 2026

On Friday 30 January 2026, the sun will rise at 06:06 and will set at 17:46 on the beach(es) of Playa Arenillas. The outside temperature will be a high of 83°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 14.9mph km/h (with gusts up to 21.8mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (76°F)23°C (74°F)23°C (73°F)26°C (78°F)25°C (76°F)27°C (81°F)27°C (81°F)26°C (78°F)
Perceived temperature26°C (79°F)25°C (77°F)25°C (77°F)27°C (81°F)26°C (79°F)29°C (84°F)29°C (84°F)27°C (81°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%79%82%66%58%58%64%71%
Barometric pressure1012 hPa1011 hPa1013 hPa1015 hPa1012 hPa1009 hPa1010 hPa1012 hPa
Cloud cover12%16%4%4%4%7%9%12%
Heat index26°C (79°F)25°C (77°F)25°C (77°F)27°C (81°F)26°C (79°F)29°C (84°F)29°C (84°F)27°C (81°F)
Dew point20°C (68°F)19°C (67°F)20°C (67°F)19°C (66°F)16°C (61°F)18°C (65°F)20°C (67°F)20°C (68°F)
Wind
Speed24km/h (15mph)16km/h (10mph)24km/h (15mph)23km/h (14mph)14km/h (9mph)7km/h (4mph)17km/h (11mph)14km/h (9mph)
Gusts34km/h (21mph)24km/h (15mph)35km/h (22mph)29km/h (18mph)29km/h (18mph)15km/h (9mph)31km/h (19mph)22km/h (14mph)
Direction 60°
ENE
65°
ENE
48°
NE
58°
ENE
42°
NE
42°
NE
71°
ENE
83°
E
Wind chill24°C (76°F)23°C (74°F)23°C (73°F)26°C (78°F)25°C (76°F)27°C (81°F)27°C (81°F)26°C (78°F)
Waves
Height0.8m (2.5ft)0.7m (2.2ft)0.8m (2.8ft)0.6m (2.1ft)0.5m (1.7ft)0.5m (1.7ft)0.5m (1.7ft)0.5m (1.8ft)
Direction 235°
SW
234°
SW
234°
SW
233°
SW
232°
SW
231°
SW
231°
SW
231°
SW
Period14.8 sec.14.7 sec.14.6 sec.14.6 sec.14.4 sec.14.3 sec.14.2 sec.14.0 sec.
Significant height1.1m (3.6ft)1.0m (3.3ft)1.3m (4.3ft)0.6m (2ft)0.4m (1.3ft)0.5m (1.6ft)0.8m (2.6ft)0.8m (2.6ft)
Sea water temperature
Water temperature28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)

Sea weather on Saturday 31 January 2026

On Saturday 31 January 2026, the sun will rise at 06:06 and will set at 17:47 on the beach(es) of Playa Arenillas. The outside temperature will be a high of 85°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 25.5mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature25°C (77°F)24°C (75°F)24°C (75°F)26°C (79°F)27°C (81°F)29°C (83°F)28°C (82°F)26°C (80°F)
Perceived temperature27°C (80°F)26°C (79°F)26°C (78°F)27°C (81°F)28°C (83°F)30°C (87°F)29°C (85°F)28°C (83°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity74%77%75%60%57%58%63%67%
Barometric pressure1013 hPa1012 hPa1013 hPa1015 hPa1013 hPa1010 hPa1012 hPa1014 hPa
Cloud cover25%36%22%23%31%32%55%76%
Heat index27°C (80°F)26°C (79°F)26°C (78°F)27°C (81°F)28°C (83°F)30°C (87°F)29°C (85°F)28°C (83°F)
Dew point20°C (68°F)20°C (68°F)19°C (66°F)18°C (64°F)18°C (64°F)19°C (67°F)20°C (68°F)20°C (68°F)
Wind
Speed12km/h (7mph)15km/h (9mph)18km/h (11mph)21km/h (13mph)24km/h (15mph)27km/h (17mph)24km/h (15mph)20km/h (13mph)
Gusts17km/h (11mph)22km/h (14mph)26km/h (16mph)27km/h (17mph)35km/h (22mph)41km/h (25mph)38km/h (23mph)30km/h (18mph)
Direction 96°
E
57°
ENE
59°
ENE
53°
NE
36°
NE
28°
NNE
54°
NE
71°
ENE
Wind chill25°C (77°F)24°C (75°F)24°C (75°F)26°C (79°F)27°C (81°F)29°C (83°F)28°C (82°F)26°C (80°F)
Waves
Height0.5m (1.7ft)0.5m (1.7ft)0.5m (1.7ft)0.5m (1.7ft)0.6m (2.1ft)0.8m (2.8ft)0.7m (2.4ft)0.6m (1.9ft)
Direction 232°
SW
231°
SW
230°
SW
230°
SW
230°
SW
230°
SW
229°
SW
229°
SW
Period13.8 sec.13.6 sec.13.5 sec.13.5 sec.13.4 sec.13.3 sec.13.2 sec.13.1 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.8m (2.6ft)0.6m (2ft)1.1m (3.6ft)1.4m (4.6ft)0.9m (3ft)0.8m (2.6ft)
Sea water temperature
Water temperature26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)

Sea weather on Sunday 1 February 2026

On Sunday 1 February 2026, the sun will rise at 06:06 and will set at 17:47 on the beach(es) of Playa Arenillas. The outside temperature will be a high of 83°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! Be careful, the sea will be generally rough with a wind speed of up to 25.5mph km/h (with gusts up to 32.9mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature26°C (78°F)25°C (76°F)24°C (76°F)27°C (80°F)27°C (81°F)28°C (82°F)26°C (79°F)25°C (77°F)
Perceived temperature27°C (81°F)26°C (79°F)26°C (79°F)28°C (82°F)28°C (83°F)29°C (85°F)27°C (81°F)26°C (79°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity68%67%65%60%57%56%63%66%
Barometric pressure1014 hPa1013 hPa1015 hPa1016 hPa1014 hPa1012 hPa1014 hPa1016 hPa
Cloud cover56%45%44%12%17%22%22%33%
Heat index27°C (81°F)26°C (79°F)26°C (79°F)28°C (82°F)28°C (83°F)29°C (85°F)27°C (81°F)26°C (79°F)
Dew point19°C (67°F)18°C (65°F)18°C (64°F)18°C (65°F)18°C (64°F)18°C (65°F)19°C (65°F)18°C (65°F)
Wind
Speed26km/h (16mph)28km/h (17mph)30km/h (18mph)38km/h (23mph)41km/h (25mph)36km/h (22mph)29km/h (18mph)30km/h (19mph)
Gusts36km/h (22mph)40km/h (25mph)42km/h (26mph)48km/h (30mph)44km/h (27mph)53km/h (33mph)43km/h (27mph)43km/h (27mph)
Direction 66°
ENE
60°
ENE
63°
ENE
46°
NE
37°
NE
46°
NE
54°
NE
51°
NE
Wind chill26°C (78°F)25°C (76°F)24°C (76°F)27°C (80°F)27°C (81°F)28°C (82°F)26°C (79°F)25°C (77°F)
Waves
Height0.7m (2.2ft)0.7m (2.4ft)0.9m (2.9ft)1.0m (3.2ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.5ft)1.1m (3.6ft)
Direction 229°
SW
229°
SW
228°
SW
228°
SW
16°
NNE
22°
NNE
24°
NNE
26°
NNE
Period12.8 sec.12.7 sec.12.6 sec.12.6 sec.12.6 sec.12.5 sec.12.4 sec.12.4 sec.
Significant height1.2m (3.9ft)1.2m (3.9ft)1.5m (4.9ft)1.6m (5.2ft)1.7m (5.6ft)1.6m (5.2ft)1.7m (5.6ft)1.8m (5.9ft)
Sea water temperature
Water temperature28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)

Sea weather on Monday 2 February 2026

On Monday 2 February 2026, the sun will rise at 06:06 and will set at 17:47 on the beach(es) of Playa Arenillas. The outside temperature will be a high of 77°F t and a low of 72°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 24.9mph km/h (with gusts up to 32.9mph). Wave height will be up to 5.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (74°F)23°C (73°F)22°C (71°F)24°C (75°F)23°C (73°F)25°C (76°F)22°C (72°F)23°C (73°F)
Perceived temperature25°C (77°F)25°C (77°F)22°C (71°F)25°C (77°F)25°C (76°F)26°C (78°F)25°C (76°F)25°C (77°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity67%64%64%56%52%56%64%67%
Barometric pressure1017 hPa1015 hPa1016 hPa1017 hPa1014 hPa1011 hPa1013 hPa1015 hPa
Cloud cover20%22%12%7%4%4%4%8%
Heat index25°C (77°F)25°C (77°F)25°C (76°F)25°C (77°F)25°C (76°F)26°C (78°F)25°C (76°F)25°C (77°F)
Dew point17°C (63°F)15°C (60°F)15°C (59°F)14°C (58°F)12°C (54°F)15°C (59°F)15°C (59°F)17°C (62°F)
Wind
Speed38km/h (23mph)34km/h (21mph)39km/h (24mph)35km/h (22mph)36km/h (23mph)40km/h (25mph)36km/h (22mph)31km/h (19mph)
Gusts52km/h (32mph)46km/h (29mph)53km/h (33mph)42km/h (26mph)38km/h (24mph)46km/h (29mph)38km/h (24mph)43km/h (27mph)
Direction 46°
NE
51°
NE
56°
ENE
51°
NE
49°
NE
51°
NE
55°
NE
52°
NE
Wind chill24°C (74°F)23°C (73°F)22°C (71°F)24°C (75°F)23°C (73°F)25°C (76°F)22°C (72°F)23°C (73°F)
Waves
Height1.4m (4.6ft)1.6m (5.2ft)1.6m (5.3ft)1.5m (4.8ft)1.6m (5.3ft)1.4m (4.7ft)1.2m (3.9ft)1.2m (4.0ft)
Direction 19°
NNE
20°
NNE
25°
NNE
27°
NNE
28°
NNE
28°
NNE
35°
NE
37°
NE
Period12.3 sec.12.3 sec.12.1 sec.12.0 sec.11.9 sec.11.9 sec.12.0 sec.12.0 sec.
Significant height2.2m (7.2ft)2.3m (7.5ft)2.4m (7.9ft)2.0m (6.6ft)2.4m (7.9ft)1.9m (6.2ft)1.5m (4.9ft)1.9m (6.2ft)
Sea water temperature
Water temperature28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)

Sea weather on Tuesday 3 February 2026

On Tuesday 3 February 2026, the sun will rise at 06:06 and will set at 17:48 on the beach(es) of Playa Arenillas. The outside temperature will be a high of 79°F t and a low of 70°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 21.1mph km/h (with gusts up to 29.2mph). Wave height will be up to 5.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature22°C (72°F)21°C (70°F)21°C (70°F)24°C (74°F)23°C (73°F)26°C (78°F)25°C (77°F)24°C (75°F)
Perceived temperature25°C (76°F)21°C (70°F)21°C (70°F)25°C (77°F)25°C (76°F)26°C (80°F)26°C (80°F)25°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity66%71%74%65%57%55%64%71%
Barometric pressure1014 hPa1012 hPa1014 hPa1015 hPa1012 hPa1009 hPa1010 hPa1012 hPa
Cloud cover5%10%7%6%5%3%3%3%
Heat index25°C (76°F)24°C (76°F)21°C (70°F)25°C (77°F)25°C (76°F)26°C (80°F)26°C (80°F)25°C (78°F)
Dew point16°C (60°F)16°C (60°F)16°C (61°F)17°C (62°F)14°C (56°F)16°C (60°F)18°C (64°F)18°C (64°F)
Wind
Speed34km/h (21mph)31km/h (19mph)28km/h (18mph)32km/h (20mph)31km/h (19mph)21km/h (13mph)25km/h (15mph)22km/h (13mph)
Gusts47km/h (29mph)44km/h (27mph)40km/h (25mph)38km/h (24mph)36km/h (22mph)24km/h (15mph)42km/h (26mph)33km/h (20mph)
Direction 50°
NE
51°
NE
52°
NE
51°
NE
54°
NE
57°
ENE
60°
ENE
66°
ENE
Wind chill22°C (72°F)21°C (70°F)21°C (70°F)24°C (74°F)23°C (73°F)26°C (78°F)25°C (77°F)24°C (75°F)
Waves
Height1.7m (5.5ft)1.7m (5.6ft)1.6m (5.3ft)1.4m (4.5ft)1.2m (4.1ft)1.2m (3.9ft)0.9m (3.1ft)0.6m (2.1ft)
Direction 21°
NNE
19°
NNE
22°
NNE
31°
NNE
41°
NE
37°
NE
38°
NE
237°
WSW
Period13.3 sec.13.3 sec.13.0 sec.12.5 sec.12.4 sec.12.4 sec.12.3 sec.12.1 sec.
Significant height2.5m (8.2ft)2.4m (7.9ft)2.3m (7.5ft)1.8m (5.9ft)1.6m (5.2ft)1.7m (5.6ft)1.2m (3.9ft)0.8m (2.6ft)
Sea water temperature
Water temperature28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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