Sea weather in Jaco in Costa Rica All the beach weather in Jaco

All the essential weather information for enjoying the beach in Jaco 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 Jaco over the next 7 days?

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

Date Outside temp. Our opinion
Sunday 19 July 202676°F to 83°Frecommended
Monday 20 July 202677°F to 81°Frecommended
Tuesday 21 July 202677°F to 81°Frecommended
Wednesday 22 July 202677°F to 81°Frecommended
Thursday 23 July 202676°F to 81°Frecommended
Friday 24 July 202677°F to 81°Frecommended

Sea Weather: Your daily and hourly sea weather in Jaco

Sea weather on Sunday 19 July 2026

On Sunday 19 July 2026, the sun will rise at 05:27 and will set at 18:03 on the beach(es) of Jaco. 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 7.5mph km/h (with gusts up to 12.4mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (80°F)26°C (78°F)26°C (78°F)28°C (82°F)25°C (77°F)28°C (83°F)27°C (81°F)27°C (80°F)
Perceived temperature29°C (85°F)28°C (83°F)28°C (82°F)30°C (86°F)26°C (79°F)31°C (88°F)31°C (87°F)29°C (85°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity78%79%79%70%66%68%78%81%
Barometric pressure1010 hPa1009 hPa1009 hPa1011 hPa1009 hPa1007 hPa1008 hPa1010 hPa
Cloud cover13%15%13%14%11%22%61%64%
Heat index29°C (85°F)28°C (83°F)28°C (82°F)30°C (86°F)26°C (79°F)31°C (88°F)31°C (87°F)29°C (85°F)
Dew point23°C (73°F)22°C (72°F)22°C (71°F)22°C (71°F)18°C (65°F)22°C (71°F)23°C (74°F)23°C (73°F)
Wind
Speed8km/h (5mph)8km/h (5mph)9km/h (5mph)6km/h (4mph)10km/h (6mph)12km/h (8mph)10km/h (6mph)2km/h (1mph)
Gusts12km/h (7mph)12km/h (7mph)13km/h (8mph)7km/h (5mph)20km/h (13mph)18km/h (11mph)15km/h (9mph)3km/h (2mph)
Direction 348°
NNW

N
18°
NNE
322°
NW
285°
WNW
242°
WSW
265°
W
209°
SSW
Wind chill27°C (80°F)26°C (78°F)26°C (78°F)28°C (82°F)25°C (77°F)28°C (83°F)27°C (81°F)27°C (80°F)
Waves
Height1.0m (3.3ft)1.0m (3.4ft)1.1m (3.5ft)1.1m (3.5ft)1.1m (3.5ft)1.1m (3.5ft)1.0m (3.4ft)1.0m (3.4ft)
Direction 203°
SSW
202°
SSW
202°
SSW
202°
SSW
201°
SSW
201°
SSW
202°
SSW
201°
SSW
Period13.1 sec.12.7 sec.12.6 sec.12.5 sec.12.4 sec.12.5 sec.12.5 sec.12.1 sec.
Significant height0.8m (2.6ft)0.9m (3ft)0.9m (3ft)0.9m (3ft)0.9m (3ft)0.9m (3ft)0.9m (3ft)0.9m (3ft)
Sea water temperature
Water temperature29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)

Sea weather on Monday 20 July 2026

On Monday 20 July 2026, the sun will rise at 05:27 and will set at 18:03 on the beach(es) of Jaco. 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 8.1mph km/h (with gusts up to 11.2mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature26°C (79°F)26°C (78°F)25°C (78°F)26°C (79°F)26°C (79°F)27°C (80°F)26°C (79°F)26°C (78°F)
Perceived temperature29°C (84°F)28°C (83°F)28°C (82°F)29°C (84°F)28°C (83°F)29°C (85°F)29°C (84°F)28°C (83°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%82%82%79%78%76%81%80%
Barometric pressure1009 hPa1008 hPa1009 hPa1011 hPa1010 hPa1008 hPa1008 hPa1010 hPa
Cloud cover62%52%71%50%42%47%83%63%
Heat index29°C (84°F)28°C (83°F)28°C (82°F)29°C (84°F)28°C (83°F)29°C (85°F)29°C (84°F)28°C (83°F)
Dew point23°C (73°F)22°C (72°F)22°C (72°F)22°C (72°F)22°C (71°F)22°C (72°F)23°C (73°F)22°C (72°F)
Wind
Speed3km/h (2mph)5km/h (3mph)4km/h (3mph)1km/h (1mph)1km/h (1mph)10km/h (6mph)13km/h (8mph)9km/h (6mph)
Gusts4km/h (3mph)8km/h (5mph)7km/h (4mph)2km/h (1mph)3km/h (2mph)15km/h (9mph)18km/h (11mph)14km/h (9mph)
Direction 106°
ESE
99°
E
63°
ENE
170°
S
298°
WNW
331°
NNW
336°
NNW
19°
NNE
Wind chill26°C (79°F)26°C (78°F)25°C (78°F)26°C (79°F)26°C (79°F)27°C (80°F)26°C (79°F)26°C (78°F)
Waves
Height1.0m (3.4ft)1.0m (3.4ft)1.0m (3.4ft)1.0m (3.4ft)1.1m (3.5ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)
Direction 201°
SSW
200°
SSW
200°
SSW
202°
SSW
202°
SSW
203°
SSW
204°
SSW
220°
SW
Period11.8 sec.11.8 sec.12.1 sec.12.6 sec.12.7 sec.6.4 sec.6.4 sec.6.4 sec.
Significant height0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)0.8m (2.6ft)0.9m (3ft)1.0m (3.3ft)1.1m (3.6ft)
Sea water temperature
Water temperature29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)

Sea weather on Tuesday 21 July 2026

On Tuesday 21 July 2026, the sun will rise at 05:27 and will set at 18:03 on the beach(es) of Jaco. The outside temperature will be a high of 81°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 5mph km/h (with gusts up to 8.1mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature25°C (78°F)25°C (78°F)26°C (78°F)27°C (81°F)27°C (81°F)26°C (80°F)26°C (80°F)26°C (78°F)
Perceived temperature28°C (82°F)27°C (81°F)28°C (82°F)30°C (86°F)30°C (86°F)29°C (84°F)29°C (84°F)28°C (83°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%79%77%71%71%77%79%83%
Barometric pressure1009 hPa1008 hPa1008 hPa1010 hPa1009 hPa1007 hPa1008 hPa1010 hPa
Cloud cover50%45%39%100%50%81%51%53%
Heat index28°C (82°F)27°C (81°F)28°C (82°F)30°C (86°F)30°C (86°F)29°C (84°F)29°C (84°F)28°C (83°F)
Dew point22°C (71°F)21°C (71°F)21°C (70°F)22°C (71°F)22°C (71°F)22°C (72°F)22°C (72°F)23°C (73°F)
Wind
Speed6km/h (4mph)7km/h (4mph)8km/h (5mph)4km/h (3mph)1km/h (1mph)3km/h (2mph)4km/h (3mph)6km/h (4mph)
Gusts10km/h (6mph)11km/h (7mph)13km/h (8mph)5km/h (3mph)2km/h (1mph)4km/h (2mph)7km/h (4mph)9km/h (6mph)
Direction 45°
NE
59°
ENE
32°
NNE
43°
NE
273°
W
224°
SW
140°
SE
77°
ENE
Wind chill25°C (78°F)25°C (78°F)26°C (78°F)27°C (81°F)27°C (81°F)26°C (80°F)26°C (80°F)26°C (78°F)
Waves
Height1.1m (3.5ft)1.0m (3.4ft)1.0m (3.3ft)1.0m (3.2ft)1.0m (3.1ft)0.9m (3.1ft)0.9m (3.0ft)0.9m (3.0ft)
Direction 220°
SW
205°
SSW
219°
SW
220°
SW
220°
SW
220°
SW
218°
SW
219°
SW
Period6.5 sec.6.6 sec.6.5 sec.12.4 sec.12.1 sec.11.7 sec.13.7 sec.13.5 sec.
Significant height0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.7m (2.3ft)
Sea water temperature
Water temperature29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)

Sea weather on Wednesday 22 July 2026

On Wednesday 22 July 2026, the sun will rise at 05:27 and will set at 18:03 on the beach(es) of Jaco. 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 5.6mph km/h (with gusts up to 8.7mph). 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)25°C (77°F)27°C (80°F)27°C (80°F)27°C (80°F)26°C (79°F)26°C (78°F)
Perceived temperature28°C (82°F)27°C (81°F)27°C (81°F)29°C (85°F)30°C (85°F)30°C (86°F)28°C (83°F)28°C (83°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity86%87%86%80%77%78%81%83%
Barometric pressure1009 hPa1008 hPa1009 hPa1010 hPa1009 hPa1008 hPa1009 hPa1010 hPa
Cloud cover75%52%69%39%89%86%63%52%
Heat index28°C (82°F)27°C (81°F)27°C (81°F)29°C (85°F)30°C (85°F)30°C (86°F)28°C (83°F)28°C (83°F)
Dew point23°C (73°F)22°C (72°F)22°C (72°F)23°C (73°F)22°C (72°F)23°C (73°F)22°C (72°F)22°C (72°F)
Wind
Speed8km/h (5mph)5km/h (3mph)7km/h (4mph)9km/h (5mph)9km/h (5mph)8km/h (5mph)2km/h (1mph)4km/h (2mph)
Gusts13km/h (8mph)8km/h (5mph)11km/h (7mph)12km/h (7mph)14km/h (9mph)12km/h (7mph)4km/h (3mph)5km/h (3mph)
Direction 72°
ENE
102°
ESE
101°
E
125°
SE
156°
SSE
154°
SSE
148°
SSE
125°
SE
Wind chill25°C (77°F)25°C (76°F)25°C (77°F)27°C (80°F)27°C (80°F)27°C (80°F)26°C (79°F)26°C (78°F)
Waves
Height0.9m (2.9ft)0.9m (2.9ft)0.9m (2.9ft)0.9m (2.8ft)0.9m (2.8ft)0.8m (2.8ft)0.8m (2.8ft)0.8m (2.8ft)
Direction 220°
SW
220°
SW
220°
SW
217°
SW
218°
SW
219°
SW
219°
SW
219°
SW
Period11.7 sec.6.6 sec.11.4 sec.6.6 sec.6.6 sec.6.7 sec.7.0 sec.7.0 sec.
Significant height0.8m (2.6ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)0.8m (2.6ft)0.7m (2.3ft)0.8m (2.6ft)0.7m (2.3ft)
Sea water temperature
Water temperature29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)

Sea weather on Thursday 23 July 2026

On Thursday 23 July 2026, the sun will rise at 05:28 and will set at 18:03 on the beach(es) of Jaco. The outside temperature will be a high of 81°F t and a low of 76°F. Precipitation is in the forecast (0.2in 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 6.8mph km/h (with gusts up to 9.3mph). 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)24°C (76°F)25°C (77°F)27°C (80°F)27°C (81°F)26°C (78°F)25°C (78°F)25°C (77°F)
Perceived temperature28°C (82°F)27°C (80°F)27°C (81°F)29°C (85°F)29°C (85°F)28°C (83°F)28°C (82°F)27°C (81°F)
Precipitation0.1in0.1in0in0in0in0in0in0in
Humidity86%89%83%72%71%81%83%83%
Barometric pressure1010 hPa1009 hPa1009 hPa1011 hPa1010 hPa1008 hPa1009 hPa1011 hPa
Cloud cover100%95%35%62%80%58%49%32%
Heat index28°C (82°F)27°C (80°F)27°C (81°F)29°C (85°F)29°C (85°F)28°C (83°F)28°C (82°F)27°C (81°F)
Dew point23°C (73°F)23°C (73°F)22°C (72°F)22°C (71°F)21°C (70°F)22°C (72°F)22°C (72°F)22°C (71°F)
Wind
Speed2km/h (1mph)8km/h (5mph)7km/h (4mph)9km/h (6mph)11km/h (7mph)4km/h (2mph)10km/h (6mph)7km/h (4mph)
Gusts4km/h (2mph)12km/h (8mph)13km/h (8mph)11km/h (7mph)15km/h (9mph)6km/h (4mph)15km/h (9mph)11km/h (7mph)
Direction 318°
NW
324°
NW
330°
NNW
337°
NNW
265°
W
283°
WNW
355°
N

N
Wind chill25°C (77°F)24°C (76°F)25°C (77°F)27°C (80°F)27°C (81°F)26°C (78°F)25°C (78°F)25°C (77°F)
Waves
Height0.8m (2.8ft)0.8m (2.7ft)0.9m (2.9ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.1ft)
Direction 206°
SSW
206°
SSW
217°
SW
201°
SSW
201°
SSW
202°
SSW
211°
SSW
204°
SSW
Period6.9 sec.6.8 sec.6.6 sec.6.5 sec.6.5 sec.6.5 sec.6.6 sec.6.9 sec.
Significant height0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)1.0m (3.3ft)1.1m (3.6ft)
Sea water temperature
Water temperature29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)

Sea weather on Friday 24 July 2026

On Friday 24 July 2026, the sun will rise at 05:28 and will set at 18:03 on the beach(es) of Jaco. 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 8.1mph km/h (with gusts up to 11.2mph). Wave height will be up to 4.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature25°C (77°F)25°C (77°F)25°C (77°F)27°C (81°F)27°C (81°F)27°C (81°F)26°C (79°F)26°C (78°F)
Perceived temperature27°C (81°F)27°C (80°F)27°C (80°F)30°C (85°F)29°C (85°F)30°C (86°F)29°C (83°F)28°C (82°F)
Precipitation0in0in0in0in0in0in0.1in0in
Humidity82%82%79%70%67%74%81%82%
Barometric pressure1010 hPa1009 hPa1009 hPa1010 hPa1009 hPa1008 hPa1009 hPa1011 hPa
Cloud cover50%36%19%15%20%43%41%81%
Heat index27°C (81°F)27°C (80°F)27°C (80°F)30°C (85°F)29°C (85°F)30°C (86°F)29°C (83°F)28°C (82°F)
Dew point22°C (71°F)21°C (71°F)21°C (70°F)21°C (70°F)21°C (69°F)22°C (72°F)22°C (72°F)22°C (72°F)
Wind
Speed8km/h (5mph)9km/h (6mph)10km/h (6mph)7km/h (4mph)8km/h (5mph)13km/h (8mph)6km/h (4mph)7km/h (4mph)
Gusts12km/h (7mph)15km/h (9mph)15km/h (9mph)9km/h (5mph)12km/h (7mph)18km/h (11mph)13km/h (8mph)13km/h (8mph)
Direction 353°
N
352°
N
355°
N
345°
NNW
187°
S
156°
SSE
138°
SE
95°
E
Wind chill25°C (77°F)25°C (77°F)25°C (77°F)27°C (81°F)27°C (81°F)27°C (81°F)26°C (79°F)26°C (78°F)
Waves
Height0.9m (3.1ft)1.0m (3.2ft)1.0m (3.4ft)1.4m (4.6ft)1.5m (5.1ft)1.4m (4.6ft)1.4m (4.5ft)1.4m (4.5ft)
Direction 204°
SSW
205°
SSW
207°
SSW
210°
SSW
212°
SSW
212°
SSW
218°
SW
213°
SSW
Period7.3 sec.7.3 sec.10.9 sec.7.4 sec.7.4 sec.7.2 sec.7.9 sec.7.8 sec.
Significant height1.1m (3.6ft)1.1m (3.6ft)0.8m (2.6ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.5m (1.6ft)0.5m (1.6ft)
Sea water temperature
Water temperature29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

Change units