World Resorts Costa Rica Cartago Weather

Cartago 7 Days Forecast

14.09
mon
Day
73°F
SE 2 mph
Precip.
32%
Night
63°F
SW 5 mph
Precip.
60%
15.09
tue
Day
70°F
S 2 mph
Precip.
29%
Night
59°F
SW 4 mph
Precip.
22%
16.09
wed
Day
73°F
SE 2 mph
Precip.
45%
Night
61°F
SW 5 mph
Precip.
34%
17.09
thu
Day
73°F
SE 2 mph
Precip.
30%
Night
61°F
W 4 mph
Precip.
38%
18.09
fri
Day
70°F
E 4 mph
Precip.
70%
Night
63°F
SW 4 mph
Precip.
36%
19.09
sat
Day
72°F
E 4 mph
Precip.
72%
Night
63°F
NW 1 mph
Precip.
74%
20.09
sun
Day
68°F
E 4 mph
Precip.
75%
Night
61°F
W 2 mph
Precip.
72%

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 83.9°F. The highest and lowest sea temperatures during the month were 84.6°F and 83.3°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

Sunniest months:
February 11 days
January 10 days
March 9 days
Warmest months:
March 75.1 °F
April 74.6 °F
February 73.6 °F
Warmest sea temp:
April 85.8 °F
March 85.5 °F
May 85.2 °F
Coldest months:
November 70.5 °F
October 70.6 °F
December 71.3 °F
Rainiest months:
September 26 days
October 25 days
June 25 days
Windiest months:
February 5.2 mph
January 5.0 mph
March 4.6 mph

Cartago on a weather map

Cartago
+73°F
SE 2 mph
Feels like: +77°F
Precip.: 32%
Places in Costa Rica:
Name
°F
+79°F
+82°F
+82°F
+82°F
+82°F
+90°F
+72°F
+82°F
+88°F
+81°F
+90°F
+72°F
24 Hours Forecast
Cartago
Local time: 11:24
September 14, monday
1200
73°F
SE
2 mph
1500
68°F
S
2 mph
1800
63°F
SW
4 mph
2100
63°F
SW
5 mph
September 15, tuesday
0000
63°F
SW
5 mph
0300
61°F
W
5 mph
0600
61°F
W
5 mph
0900
72°F
SW
2 mph
Units of measurement: °C / °F