San José Weather in January

Thinking of visiting San José in January? Expect very high temperatures reaching 32°C (90°F) during the day, dropping to 20°C (68°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in San José in January

Analyzing past climate data, one can expect approximately 8 days of rain, averaging 110 mm (4.3 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in San José in January

January in San José brings typical temperatures with highs around 32°C (90°F) and lows of 20°C (68°F). The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. With overnight lows of 20°C (68°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep. These temperatures are typical, but it's wise to prepare for hotter days. Dress in light, airy clothing and protect yourself from the sun.

If you prefer dry days with pleasant temperatures, January may not be the ideal month to visit San José. Our weather planner can help you explore destinations with more pleasant weather conditions.