27.04
mon
mon
Day
82°F
S 2 mph
Precip.
100%
100%
Night
59°F
SW 3 mph
Precip.
0%
0%
28.04
tue
tue
Day
79°F
SE 2 mph
Precip.
100%
100%
Night
57°F
W 5 mph
Precip.
0%
0%
29.04
wed
wed
Day
82°F
S 2 mph
Precip.
0%
0%
Night
57°F
W 4 mph
Precip.
0%
0%
30.04
thu
thu
Day
81°F
S 2 mph
Precip.
100%
100%
Night
59°F
W 4 mph
Precip.
0%
0%
01.05
fri
fri
Day
77°F
S 2 mph
Precip.
100%
100%
Night
61°F
W 2 mph
Precip.
0%
0%
02.05
sat
sat
Day
75°F
E 2 mph
Precip.
100%
100%
Night
63°F
W 2 mph
Precip.
0%
0%
03.05
sun
sun
Day
77°F
S 2 mph
Precip.
100%
100%
Night
61°F
W 2 mph
Precip.
0%
0%
04.05
mon
mon
Day
79°F
SE 2 mph
Precip.
100%
100%
Night
61°F
W 3 mph
Precip.
0%
0%
05.05
tue
tue
Day
77°F
SE 2 mph
Precip.
100%
100%
Night
61°F
W 3 mph
Precip.
0%
0%
06.05
wed
wed
Day
81°F
S 2 mph
Precip.
100%
100%
Night
64°F
SW 3 mph
Precip.
0%
0%
07.05
thu
thu
Day
75°F
S 2 mph
Precip.
100%
100%
Night
61°F
SW 4 mph
Precip.
62%
62%
08.05
fri
fri
Day
72°F
E 2 mph
Precip.
100%
100%
Night
63°F
SW 2 mph
Precip.
71%
71%
09.05
sat
sat
Day
73°F
SE 2 mph
Precip.
100%
100%
Night
59°F
SW 3 mph
Precip.
0%
0%
10.05
sun
sun
Day
81°F
SE 2 mph
Precip.
100%
100%
Night
64°F
SW 4 mph
Precip.
0%
0%
sea water
temperature
temperature
| San Jose |
monthly
weather
weather
| San Jose |
current
weather
weather
| San Jose |
7 days
forecast
forecast
| San Jose |
Sea water temperature in April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 86.7°F. The highest and lowest sea temperatures during the month were 87.4°F and 85.5°F.
Sea water temperature in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 85.9°F. The highest and lowest sea temperatures during the month were 86.7°F and 85.1°F.
Air temperature in San Jose, °F
Precipitation total in San Jose, in.
* Charts above show average data for the last 3 years.
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: 09:35
April 27, monday
1200
82°F
S
2 mph
2 mph
1500
73°F
SE
1 mph
1 mph
1800
64°F
SW
2 mph
2 mph
2100
61°F
SW
3 mph
3 mph
April 28, tuesday
0000
59°F
SW
3 mph
3 mph
0300
57°F
W
4 mph
4 mph
0600
57°F
W
4 mph
4 mph
0900
75°F
S
2 mph
2 mph
