18.12
thu
thu
Day
73°F
S 2 mph
Precip.
0%
0%
Night
54°F
W 2 mph
Precip.
0%
0%
19.12
fri
fri
Day
73°F
SW 5 mph
Precip.
0%
0%
Night
54°F
W 5 mph
Precip.
0%
0%
20.12
sat
sat
Day
73°F
SW 6 mph
Precip.
0%
0%
Night
52°F
W 4 mph
Precip.
0%
0%
21.12
sun
sun
Day
73°F
SW 6 mph
Precip.
78%
78%
Night
52°F
W 4 mph
Precip.
0%
0%
22.12
mon
mon
Day
73°F
SW 6 mph
Precip.
0%
0%
Night
54°F
W 4 mph
Precip.
0%
0%
23.12
tue
tue
Day
73°F
SW 6 mph
Precip.
0%
0%
Night
52°F
W 4 mph
Precip.
0%
0%
24.12
wed
wed
Day
72°F
SW 6 mph
Precip.
100%
100%
Night
54°F
W 4 mph
Precip.
0%
0%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 83.0°F. The highest and lowest sea temperatures during the month were 84.0°F and 82.6°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 84.0°F. The highest and lowest sea temperatures during the month were 85.3°F and 82.0°F.
Air temperature in Cartago, °F
Precipitation total in Cartago, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Cartago
Cartago on a weather map
Places in Costa Rica:
Name
°F
24 Hours Forecast
Cartago
Local time: 14:01
December 18, thursday
1500
70°F
S
2 mph
2 mph
1800
57°F
SW
1 mph
1 mph
2100
52°F
W
3 mph
3 mph
December 19, friday
0000
54°F
W
2 mph
2 mph
0300
52°F
W
3 mph
3 mph
0600
52°F
W
4 mph
4 mph
0900
68°F
SW
4 mph
4 mph
1200
73°F
SW
5 mph
5 mph
