17.03
tue
tue
Day
90°F
E 3 mph
Precip.
0%
0%
Night
59°F
SW 4 mph
Precip.
0%
0%
18.03
wed
wed
Day
90°F
E 3 mph
Precip.
0%
0%
Night
59°F
SW 4 mph
Precip.
0%
0%
19.03
thu
thu
Day
88°F
E 6 mph
Precip.
0%
0%
Night
61°F
SW 4 mph
Precip.
0%
0%
20.03
fri
fri
Day
88°F
E 6 mph
Precip.
100%
100%
Night
59°F
SW 4 mph
Precip.
0%
0%
21.03
sat
sat
Day
82°F
E 2 mph
Precip.
100%
100%
Night
59°F
SW 4 mph
Precip.
0%
0%
22.03
sun
sun
Day
86°F
E 4 mph
Precip.
100%
100%
Night
59°F
SW 4 mph
Precip.
0%
0%
23.03
mon
mon
Day
88°F
E 4 mph
Precip.
100%
100%
Night
61°F
SW 3 mph
Precip.
0%
0%
24.03
tue
tue
Day
90°F
E 2 mph
Precip.
78%
78%
Night
61°F
SW 4 mph
Precip.
0%
0%
25.03
wed
wed
Day
86°F
E 3 mph
Precip.
0%
0%
Night
61°F
SW 4 mph
Precip.
0%
0%
26.03
thu
thu
Day
90°F
E 2 mph
Precip.
0%
0%
Night
61°F
SW 4 mph
Precip.
0%
0%
27.03
fri
fri
Day
90°F
SE 1 mph
Precip.
82%
82%
Night
57°F
SW 5 mph
Precip.
0%
0%
28.03
sat
sat
Day
84°F
SW 11 mph
Precip.
66%
66%
Night
63°F
SW 6 mph
Precip.
67%
67%
29.03
sun
sun
Day
82°F
SW 7 mph
Precip.
100%
100%
Night
64°F
SW 6 mph
Precip.
0%
0%
30.03
mon
mon
Day
84°F
SW 7 mph
Precip.
84%
84%
Night
63°F
SW 6 mph
Precip.
0%
0%
sea water
temperature
temperature
| Alajuela |
monthly
weather
weather
| Alajuela |
current
weather
weather
| Alajuela |
7 days
forecast
forecast
| Alajuela |
Sea water temperature in March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 85.4°F. The highest and lowest sea temperatures during the month were 86.4°F and 84.9°F.
Air temperature in Alajuela, °F
Precipitation total in Alajuela, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Alajuela
Alajuela on a weather map
Places in Costa Rica:
Name
°F
24 Hours Forecast
Alajuela
Local time: 09:13
March 17, tuesday
1200
90°F
E
3 mph
3 mph
1500
79°F
NE
3 mph
3 mph
1800
68°F
SW
2 mph
2 mph
2100
63°F
SW
4 mph
4 mph
March 18, wednesday
0000
59°F
SW
4 mph
4 mph
0300
55°F
SW
5 mph
5 mph
0600
54°F
SW
6 mph
6 mph
0900
82°F
SW
2 mph
2 mph
