Measurements:
°C
°F
San Jose
54°F
SW 6 mph
Feels like: 52°F
Precip: 0%
World Resorts Costa Rica San Jose Weather

San Jose Sea Water Temperature

Current Sea Water Temperature:
+89.4°F
Maximum Sea Water Temperature in February: 92.2°F
Minimum Sea Water Temperature in February: 86.2°F
Average water temperature in February: 88.7°F

Sea Water Temperature for the Last 10 Days:

February 18 89.4°F February 13 88.4°F
February 17 89.6°F February 12 88.4°F
February 16 88.8°F February 11 88.0°F
February 15 89.0°F February 10 88.6°F
February 14 88.6°F February 09 88.8°F

When is the Warmest Sea for San Jose?

According to our data for the last three years for San Jose the highest average sea water temperature was in April, March and May.

Average Water Temperature by Month, °F

Sea Water Temperature in April

Select Year: 2025 2024 2023

The average sea surface temperature in April 2025 for San Jose was 90.9°F. The maximum and minimum values were 90.2°F and 92.0°F respectively.

Sea Water Temperature in March

Select Year: 2025 2024 2023

The average sea surface temperature in March 2025 for San Jose was 90.3°F. The maximum and minimum values were 89.2°F and 91.2°F respectively.

Sea Water Temperature in May

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for San Jose was 89.8°F. The maximum and minimum values were 89.0°F and 90.8°F respectively.

Best Time to Visit San Jose
The most sunny months:
February 14 days
January 12 days
March 12 days
The most warm months:
March 83.3 °F
April 82.6 °F
February 81.9 °F
Warmest sea temperature:
April 89.6 °F
March 89.3 °F
May 89.0 °F
The most cold months:
November 76.1 °F
October 76.4 °F
July 77.6 °F
The most rainy months:
October 25 days
June 25 days
September 25 days
The most windy months:
February 6 mph
January 6 mph
March 5 mph

San Jose on the Weather Map

Costa Rica Resorts:
NAME
Alajuela +58
Cahuita +72
Cartago +54
Jaco +78
Limon +72
Playa Flamingo +76
Playas del Coco +76
Puerto Limon +72
Puerto Viejo de Talamanca +72
Quepos +68
Samara +78
San Jose +54
Santa Teresa +78
Tamarindo +76
Tortuguero +72
24 Hours Weather Forecast
San Jose
Local time: 06:52
18 feb, wednesday
0900 76°F
SW
5 mph
1200 80°F
SW
5 mph
1500 74°F
SW
2 mph
1800 64°F
SW
4 mph
2100 60°F
SW
4 mph
19 feb, thursday
0000 56°F
SW
5 mph
0300 56°F
SW
6 mph
0600 56°F
SW
6 mph