Measurements:
°C
°F
San Jose
60°F
W 2 mph
Feels like: 60°F
Precip: 18%
World Resorts Costa Rica San Jose Weather

7 Day Weather Forecast

06.21
sun
DAY
78°F
SE 2 mph
precip
72%
NIGHT
64°F
SW 2 mph
precip
32%
06.22
mon
DAY
72°F
S 1 mph
precip
74%
NIGHT
60°F
SW 5 mph
precip
29%
06.23
tue
DAY
72°F
SW 6 mph
precip
71%
NIGHT
62°F
SW 3 mph
precip
45%
06.24
wed
DAY
70°F
SW 4 mph
precip
62%
NIGHT
58°F
SW 4 mph
precip
18%
06.25
thu
DAY
76°F
S 2 mph
precip
52%
NIGHT
64°F
SW 2 mph
precip
42%
06.26
fri
DAY
78°F
E 3 mph
precip
58%
NIGHT
64°F
SW 3 mph
precip
39%
06.27
sat
DAY
76°F
SW 2 mph
precip
61%
NIGHT
62°F
W 4 mph
precip
24%

San Jose Sea Water Temperature in June, °F

Select Year: 2026 2025 2024

The average sea surface temperature in June 2026 for San Jose was 29.9°F. The maximum and minimum values were 29.3°F and 30.5°F respectively.

San Jose on the Weather Map

Best Time to Visit San Jose
The most sunny months:
February 13 days
January 12 days
March 11 days
The most warm months:
March 83.2 °F
April 82.4 °F
February 81.5 °F
Warmest sea temperature:
April 89.7 °F
March 89.4 °F
May 89.1 °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