Last updated: August 27, 2025
In San Jose, Peru, the average temperature in January is a comfortable 17°C (62°F), with a minimum of 10°C (51°F) and a maximum reaching up to 25°C (78°F). Be prepared for frequent showers, as precipitation amounts can total 222 mm (8.8 in) over approximately 24 days. The air is quite humid, with an average humidity of 83%, adding a touch of tropical flair to your visit!
In January in San Jose, the average temperature is 17°C (62°F). Maximum temperatures can reach 25°C (78°F), while minimums can drop to as low as 10°C (51°F). It's a great time to explore San Jose, so pack a light jacket for the cooler evenings!
In San Jose in January, the total precipitation amount is 222 mm (8.8 in) over a span of 24 days.
In San Jose in January, humidity is 83%. With an average temperature of 17°C (62°F), this humidity feels like traveling through a thick blanket of warmth, making every step feel heavy and inviting frequent breaks to cool down and hydrate.
In San Jose in January, the maximum UV index reaches an alarming 17, which falls under the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to stay protected. For more details on the hourly UV index in San Jose, you can check Hourly UV Index in San Jose.
UV Risk Categories
Weather in San Jose varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in San Jose, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 17°C (62°F) | 222 mm (8.8 inches) | 83% | extreme |
February Weather | 17°C (63°F) | 221 mm (8.7 inches) | 81% | extreme |
March Weather | 17°C (62°F) | 257 mm (10.1 inches) | 88% | extreme |
April Weather | 16°C (62°F) | 207 mm (8.1 inches) | 85% | extreme |
May Weather | 16°C (62°F) | 157 mm (6.2 inches) | 78% | extreme |
June Weather | 16°C (61°F) | 131 mm (5.1 inches) | 62% | extreme |
July Weather | 15°C (59°F) | 143 mm (5.6 inches) | 44% | extreme |
August Weather | 15°C (60°F) | 142 mm (5.6 inches) | 38% | extreme |
September Weather | 16°C (60°F) | 133 mm (5.3 inches) | 42% | extreme |
October Weather | 16°C (62°F) | 183 mm (7.2 inches) | 58% | extreme |
November Weather | 17°C (63°F) | 167 mm (6.6 inches) | 69% | extreme |
December Weather | 17°C (63°F) | 247 mm (9.7 inches) | 82% | extreme |