San José Weather in January

January in San José brings high temperatures, with daytime highs of 25°C (77°F) and nights around 12°C (54°F). Quite a bit of rainfall is expected, around 139 mm (5.5 in), so pack an umbrella.

Rainfall in San José in January

Historically, the month has about 7 days of rain, averaging 139 mm (5.5 in) in total. Showers tend to be short but heavy rather than persistent drizzle. When it rains, it usually means it, but it doesn't last long.

Temperature in San José in January

January in San José brings typical temperatures with highs around 25°C (77°F) and lows of 12°C (54°F). The month of January belongs to the summer season. Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 12°C (54°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. On average, it sees the highest temps of the year.

Sunshine in San José in January

With approximately 311 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

If you favor pleasant temperatures and minimal rainfall, January is one of the best months to visit San José.