09.07
mon
mon
DAY
78°F
E 4 mph
precip
67%
67%
NIGHT
68°F
SW 4 mph
precip
40%
40%
09.08
tue
tue
DAY
88°F
W 1 mph
precip
57%
57%
NIGHT
68°F
SW 4 mph
precip
16%
16%
09.09
wed
wed
DAY
82°F
SW 2 mph
precip
17%
17%
NIGHT
68°F
SW 5 mph
precip
38%
38%
09.10
thu
thu
DAY
86°F
SW 6 mph
precip
11%
11%
NIGHT
66°F
SW 4 mph
precip
27%
27%
09.11
fri
fri
DAY
80°F
E 1 mph
precip
62%
62%
NIGHT
68°F
SW 3 mph
precip
29%
29%
09.12
sat
sat
DAY
80°F
NE 2 mph
precip
75%
75%
NIGHT
68°F
SW 2 mph
precip
37%
37%
09.13
sun
sun
DAY
78°F
NE 3 mph
precip
73%
73%
NIGHT
68°F
SW 2 mph
precip
58%
58%
09.14
mon
mon
DAY
80°F
E 4 mph
precip
36%
36%
NIGHT
68°F
SW 1 mph
precip
65%
65%
09.15
tue
tue
DAY
76°F
E 4 mph
precip
68%
68%
NIGHT
70°F
E 2 mph
precip
61%
61%
09.16
wed
wed
DAY
76°F
E 3 mph
precip
71%
71%
NIGHT
68°F
SW 2 mph
precip
36%
36%
09.17
thu
thu
DAY
76°F
E 4 mph
precip
52%
52%
NIGHT
68°F
SW 3 mph
precip
29%
29%
09.18
fri
fri
DAY
80°F
E 4 mph
precip
64%
64%
NIGHT
70°F
E 1 mph
precip
36%
36%
09.19
sat
sat
DAY
80°F
NE 6 mph
precip
58%
58%
NIGHT
68°F
NW 1 mph
precip
67%
67%
09.20
sun
sun
DAY
74°F
S 1 mph
precip
50%
50%
NIGHT
70°F
E 1 mph
precip
56%
56%
Sea water
temperature
temperature
| Alajuela |
Weather in
September
September
| Alajuela |
7 day weather
forecast
forecast
| Alajuela |
10 day weather
forecast
forecast
| Alajuela |
14 day weather
forecast
forecast
| Alajuela |
Monthly weather
averages
averages
| Alajuela |
Current Weather
Conditions
Conditions
| Alajuela |
When is the Best
Time to Visit?
Time to Visit?
| Alajuela |
Alajuela Sea Water Temperature in September, °F
The average sea surface temperature in September 2025 for Alajuela was 87.5°F. The maximum and minimum values were 86.8°F and 88.0°F respectively.
Alajuela on the Weather Map
Costa Rica Resorts:
NAME
F°
| Alajuela |  |
+66 |
| Cahuita | |
+80 |
| El Roble | |
+78 |
| Heredia |  |
+60 |
| Jaco | |
+82 |
| Limon | |
+80 |
| Playa Flamingo | |
+80 |
| Playas del Coco | |
+80 |
| Puerto Limon | |
+80 |
| Puerto Viejo de Talamanca | |
+80 |
| Samara | |
+76 |
| San Jose | |
+60 |
| Santa Teresa | |
+80 |
| Tamarindo | |
+80 |
| Tortuguero | |
+76 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Alajuela
Local time: 03:48
07 sep, monday
| 0600 | |
66°F | SW 3 mph |
| 0900 | |
80°F | NE 4 mph |
| 1200 | |
78°F | E 4 mph |
| 1500 | |
74°F | NE 2 mph |
| 1800 | |
70°F | SE 1 mph |
| 2100 | |
68°F | SW 4 mph |
08 sep, tuesday
| 0000 | |
68°F | SW 4 mph |
| 0300 | |
66°F | SW 5 mph |