World Resorts Costa Rica Alajuela Weather

Alajuela Sea Temperature in October

Average sea water temperature in October:
+83.1°F
Minimum sea water temperature in October: 86.4°F
Maximum sea water temperature in October: 81.3°F

Daily sea water temperature in October, °F

Show year:
2025
2024
2023

The average sea water temperature in October of 2025 was 82.8°F. The highest and lowest sea temperatures during the month were 83.7°F and 81.9°F.

Monthly sea water temperature in Alajuela, °F

Which Costa Rica resorts have warmest sea in October?

Place name October 2025 October 2024
Limon 85.0°F 85.6°F
Puerto Limon 85.0°F 85.6°F
Puerto Viejo de Talamanca 85.0°F 85.4°F
Tortuguero 84.9°F 84.9°F
Cahuita 84.9°F 85.4°F
Playas del Coco 83.5°F 83.7°F
Playa Flamingo 83.1°F 83.6°F
Tamarindo 83.0°F 83.6°F
Samara 82.9°F 83.5°F
Heredia 82.9°F 83.7°F
Santa Teresa 82.9°F 83.7°F
Jaco 82.9°F 83.6°F
Alajuela 82.8°F 83.6°F
San Jose 82.8°F 83.7°F
Quepos 82.7°F 83.6°F
El Roble 82.7°F 83.6°F
Cartago 82.6°F 83.7°F

Best time for vacation in Alajuela

Sunniest months:
February 16 days
March 16 days
January 15 days
Warmest months:
March 83.6 °F
April 82.7 °F
February 81.9 °F
Warmest sea temp:
April 85.2 °F
May 85.0 °F
March 84.7 °F
Coldest months:
October 75.8 °F
November 76.0 °F
September 77.0 °F
Rainiest months:
October 25 days
June 25 days
September 25 days
Windiest months:
February 6.6 mph
January 6.3 mph
March 5.7 mph

Alajuela on a weather map

Alajuela
+86°F
E 3 mph
Feels like: +86°F
Precip.: 72%
Places in Costa Rica:
Name
°F
+86°F
+84°F
+84°F
+86°F
+84°F
+84°F
+88°F
+82°F
+90°F
+86°F
+88°F
+82°F
24 Hours Forecast
Alajuela
Local time: 11:01
April 27, monday
1200
86°F
E
3 mph
1500
77°F
NE
2 mph
1800
66°F
SE
1 mph
2100
64°F
SW
3 mph
April 28, tuesday
0000
61°F
SW
3 mph
0300
61°F
SW
4 mph
0600
61°F
SW
4 mph
0900
79°F
SW
0 mph
Units of measurement: °C / °F