27.09
sun
sun
Day

68°F
SE 2 mph
Precip.
77%
77%
Night

61°F
W 2 mph
Precip.
67%
67%
28.09
mon
mon
Day

72°F
S 2 mph
Precip.
67%
67%
Night

61°F
NW 2 mph
Precip.
43%
43%
29.09
tue
tue
Day

68°F
SE 3 mph
Precip.
51%
51%
Night

61°F
W 2 mph
Precip.
42%
42%
30.09
wed
wed
Day

70°F
E 3 mph
Precip.
79%
79%
Night

63°F
N 1 mph
Precip.
38%
38%
01.10
thu
thu
Day

70°F
SE 3 mph
Precip.
77%
77%
Night

63°F
NW 2 mph
Precip.
77%
77%
02.10
fri
fri
Day

68°F
S 2 mph
Precip.
75%
75%
Night

63°F
E 1 mph
Precip.
36%
36%
03.10
sat
sat
Day

70°F
SW 4 mph
Precip.
73%
73%
Night

59°F
W 2 mph
Precip.
35%
35%
04.10
sun
sun
Day

72°F
S 4 mph
Precip.
33%
33%
Night

61°F
E 2 mph
Precip.
78%
78%
05.10
mon
mon
Day

68°F
E 2 mph
Precip.
78%
78%
Night

61°F
NE 3 mph
Precip.
84%
84%
06.10
tue
tue
Day

70°F
E 4 mph
Precip.
47%
47%
Night

61°F
NE 2 mph
Precip.
46%
46%
07.10
wed
wed
Day

64°F
NE 2 mph
Precip.
65%
65%
Night

59°F
N 2 mph
Precip.
38%
38%
08.10
thu
thu
Day

70°F
E 2 mph
Precip.
67%
67%
Night

61°F
N 2 mph
Precip.
44%
44%
09.10
fri
fri
Day

63°F
NE 4 mph
Precip.
80%
80%
Night

61°F
NE 4 mph
Precip.
83%
83%
10.10
sat
sat
Day

64°F
NE 5 mph
Precip.
34%
34%
Night

61°F
NE 3 mph
Precip.
44%
44%
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 86.3°F. The highest and lowest sea temperatures during the month were 87.4°F and 85.8°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 82.9°F. The highest and lowest sea temperatures during the month were 83.8°F and 81.5°F.
Air temperature in Heredia, °F
Precipitation total in Heredia, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Heredia
Heredia on a weather map
Places in Costa Rica:
Name
°F
24 Hours Forecast
Heredia
Local time: 05:25
September 27, sunday
0600

61°F
NW
2 mph
2 mph
0900

66°F
E
2 mph
2 mph
1200

68°F
SE
2 mph
2 mph
1500

63°F
E
2 mph
2 mph
1800

61°F
N
1 mph
1 mph
2100

61°F
W
2 mph
2 mph
September 28, monday
0000

61°F
W
2 mph
2 mph
0300

61°F
W
2 mph
2 mph

























