Current sea water temperature:
+86.2°F
| Minimum sea water temperature in October: | 86.4°F |
| Maximum sea water temperature in October: | 81.3°F |
| Average sea water temperature in October: | 83.1°F |
| more information | |
14 days
forecast
forecast
| Alajuela |
monthly
weather
weather
| Alajuela |
Sea water temperature for the last 10 days:
| October 6 | 86.2°F | October 1 | 86.4°F |
| October 5 | 86.0°F | September 30 | 86.4°F |
| October 4 | 85.8°F | September 29 | 86.0°F |
| October 3 | 86.4°F | September 28 | 86.9°F |
| October 2 | 86.2°F | September 27 | 86.2°F |
Monthly sea water temperature, °F
When is the warmest sea in Alajuela?
Based on the data about daily sea water temperature for the last three years the warmest sea in Alajuela was noticed in April, May and March.
Monthly Sea Temperatures in Alajuela, °F
Sea water temperature in April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 85.9°F. The highest and lowest sea temperatures during the month were 86.5°F and 84.9°F.
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 86.2°F. The highest and lowest sea temperatures during the month were 86.9°F and 85.6°F.
Sea water temperature in March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 85.6°F. The highest and lowest sea temperatures during the month were 86.5°F and 84.9°F.
current
weather
weather
| Alajuela |
weather in
October
October
| Alajuela |
Best time for vacation in Alajuela
Alajuela on a weather map
Places in Costa Rica:
Name
°F
24 Hours Forecast
Alajuela
Local time: 12:21
October 06, tuesday
1500
75°F
E
4 mph
4 mph
1800
66°F
SW
2 mph
2 mph
2100
66°F
SW
1 mph
1 mph
October 07, wednesday
0000
64°F
SW
2 mph
2 mph
0300
64°F
SW
2 mph
2 mph
0600
64°F
SW
3 mph
3 mph
0900
72°F
S
2 mph
2 mph
1200
79°F
NE
3 mph
3 mph
