Measurements:
°C
°F
CURRENT WEATHER
04:40
San Jose
52°F
SW 7 mph
Feels like: 50°F
Precip: 0%
World Resorts Costa Rica San Jose Weather

7 Day Weather Forecast

01.29
thu
DAY
80°F
SW 7 mph
precip
85%
NIGHT
54°F
SW 6 mph
precip
0%
01.30
fri
DAY
84°F
SW 4 mph
precip
0%
NIGHT
52°F
SW 5 mph
precip
0%
01.31
sat
DAY
68°F
SW 5 mph
precip
100%
NIGHT
62°F
SW 6 mph
precip
100%
02.01
sun
DAY
66°F
SW 7 mph
precip
100%
NIGHT
62°F
SW 8 mph
precip
100%
02.02
mon
DAY
64°F
SW 9 mph
precip
100%
NIGHT
60°F
SW 9 mph
precip
100%
02.03
tue
DAY
64°F
SW 9 mph
precip
100%
NIGHT
60°F
SW 7 mph
precip
100%
02.04
wed
DAY
70°F
SW 7 mph
precip
100%
NIGHT
54°F
SW 7 mph
precip
0%

San Jose Sea Water Temperature in January, °F

Select Year: 2026 2025 2024

The average sea surface temperature in January 2026 for San Jose was 28.9°F. The maximum and minimum values were 28.6°F and 29.2°F respectively.

San Jose on the Weather Map

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
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