Current sea water temperature:
+86.9°F
| Minimum sea water temperature in August: | 87.8°F |
| Maximum sea water temperature in August: | 81.9°F |
| Average sea water temperature in August: | 84.3°F |
| more information | |
14 days
forecast
forecast
| San Jose |
monthly
weather
weather
| San Jose |
Sea water temperature for the last 10 days:
| August 26 | 86.9°F | August 21 | 86.4°F |
| August 25 | 86.5°F | August 20 | 86.5°F |
| August 24 | 86.4°F | August 19 | 86.5°F |
| August 23 | 86.7°F | August 18 | 86.2°F |
| August 22 | 86.2°F | August 17 | 86.5°F |
Monthly sea water temperature, °F
When is the warmest sea in San Jose?
Based on the data about daily sea water temperature for the last three years the warmest sea in San Jose was noticed in April, March and May.
Monthly Sea Temperatures in San Jose, °F
Sea water temperature in April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 86.6°F. The highest and lowest sea temperatures during the month were 87.4°F and 85.5°F.
Sea water temperature in March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 86.3°F. The highest and lowest sea temperatures during the month were 87.3°F and 85.5°F.
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 86.6°F. The highest and lowest sea temperatures during the month were 87.4°F and 85.6°F.
current
weather
weather
| San Jose |
weather in
August
August
| San Jose |
Best time for vacation in San Jose
San Jose on a weather map
Places in Costa Rica:
Name
°F
24 Hours Forecast
San Jose
Local time: 21:48
August 27, thursday
0000
61°F
W
4 mph
4 mph
0300
61°F
SW
4 mph
4 mph
0600
63°F
SW
5 mph
5 mph
0900
68°F
SW
6 mph
6 mph
1200
73°F
SW
6 mph
6 mph
1500
72°F
SW
6 mph
6 mph
1800
64°F
SW
5 mph
5 mph
2100
63°F
SW
6 mph
6 mph
