29.12
mon
mon
Day
81°F
NE 4 mph
Precip.
0%
0%
Night
77°F
SW 4 mph
Precip.
0%
0%
30.12
tue
tue
Day
81°F
N 7 mph
Precip.
0%
0%
Night
77°F
SW 6 mph
Precip.
0%
0%
31.12
wed
wed
Day
82°F
NE 2 mph
Precip.
0%
0%
Night
77°F
SW 6 mph
Precip.
0%
0%
01.01
thu
thu
Day
82°F
NE 2 mph
Precip.
0%
0%
Night
77°F
S 6 mph
Precip.
0%
0%
02.01
fri
fri
Day
82°F
NE 5 mph
Precip.
0%
0%
Night
77°F
S 5 mph
Precip.
88%
88%
03.01
sat
sat
Day
81°F
NE 4 mph
Precip.
0%
0%
Night
77°F
SW 2 mph
Precip.
64%
64%
04.01
sun
sun
Day
81°F
N 5 mph
Precip.
0%
0%
Night
77°F
S 4 mph
Precip.
76%
76%
05.01
mon
mon
Day
81°F
N 6 mph
Precip.
0%
0%
Night
77°F
S 3 mph
Precip.
80%
80%
06.01
tue
tue
Day
81°F
NE 4 mph
Precip.
0%
0%
Night
77°F
SW 2 mph
Precip.
100%
100%
07.01
wed
wed
Day
81°F
NE 6 mph
Precip.
0%
0%
Night
77°F
W 1 mph
Precip.
100%
100%
08.01
thu
thu
Day
81°F
E 4 mph
Precip.
80%
80%
Night
77°F
SW 1 mph
Precip.
100%
100%
09.01
fri
fri
Day
82°F
E 6 mph
Precip.
0%
0%
Night
77°F
S 4 mph
Precip.
100%
100%
10.01
sat
sat
Day
81°F
N 6 mph
Precip.
0%
0%
Night
77°F
SW 4 mph
Precip.
100%
100%
11.01
sun
sun
Day
81°F
N 5 mph
Precip.
0%
0%
Night
77°F
W 2 mph
Precip.
100%
100%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 83.2°F. The highest and lowest sea temperatures during the month were 84.2°F and 82.4°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 83.7°F. The highest and lowest sea temperatures during the month were 85.3°F and 82.2°F.
Air temperature in Jaco, °F
Precipitation total in Jaco, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Jaco
Jaco on a weather map
Places in Costa Rica:
Name
°F
24 Hours Forecast
Jaco
Local time: 23:39
December 30, tuesday
0000
77°F
SW
4 mph
4 mph
0300
75°F
S
6 mph
6 mph
0600
75°F
SW
6 mph
6 mph
0900
81°F
W
2 mph
2 mph
1200
81°F
N
7 mph
7 mph
1500
81°F
N
7 mph
7 mph
1800
79°F
N
3 mph
3 mph
2100
79°F
S
4 mph
4 mph
