World Resorts Costa Rica San Jose Weather

San Jose Sea Temperature in January

Average sea water temperature in January:
+84.1°F
Minimum sea water temperature in January: 87.3°F
Maximum sea water temperature in January: 80.8°F

Daily sea water temperature in January, °F

Show year:
2026
2025
2024

The average sea water temperature in January of 2026 was 84.1°F. The highest and lowest sea temperatures during the month were 84.6°F and 83.5°F.

Monthly sea water temperature in San Jose, °F

Which Costa Rica resorts have warmest sea in January?

Place name January 2026 January 2025
Quepos 84.3°F 84.0°F
Heredia 84.2°F 83.8°F
Cartago 84.1°F 84.0°F
Jaco 84.1°F 83.7°F
San Jose 84.1°F 83.9°F
Alajuela 83.9°F 83.5°F
Santa Teresa 83.6°F 83.2°F
Samara 83.5°F 83.1°F
El Roble 83.3°F 82.6°F
Tamarindo 82.7°F 82.0°F
Playas del Coco 81.8°F 81.0°F
Limon 81.7°F 81.5°F
Puerto Limon 81.7°F 81.5°F
Playa Flamingo 81.7°F 81.0°F
Puerto Viejo de Talamanca 81.6°F 81.6°F
Cahuita 81.5°F 81.5°F
Tortuguero 81.4°F 81.3°F

Best time for vacation in San Jose

Sunniest months:
February 13 days
January 12 days
March 12 days
Warmest months:
March 80.0 °F
April 79.3 °F
February 78.4 °F
Warmest sea temp:
April 85.7 °F
March 85.4 °F
May 85.1 °F
Coldest months:
November 73.5 °F
October 73.8 °F
July 74.8 °F
Rainiest months:
October 25 days
June 25 days
September 25 days
Windiest months:
February 6.2 mph
January 6.0 mph
March 5.5 mph

San Jose on a weather map

San Jose
+63°F
S 1 mph
Feels like: +63°F
Precip.: 100%
Places in Costa Rica:
Name
°F
+64°F
+82°F
+61°F
+77°F
+79°F
+79°F
+82°F
+63°F
+82°F
+81°F
+77°F
+63°F
24 Hours Forecast
San Jose
Local time: 17:39
March 16, monday
1800
63°F
S
1 mph
2100
57°F
W
3 mph
March 17, tuesday
0000
57°F
W
4 mph
0300
55°F
W
4 mph
0600
55°F
W
4 mph
0900
79°F
S
2 mph
1200
84°F
S
3 mph
1500
75°F
SE
2 mph
Units of measurement: °C / °F