Climate Insights for Cajamarca

The climate in Cajamarca is temperate. The average annual temperature is 18°C and approximately 3008mm of precipitation falls per year. Cajamarca receives a notable amount of rainfall throughout the year, including during its driest month. Cajamarca sits near the equator, so seasonal temperature differences are minimal throughout the year.

Cajamarca sees moderate temperature variation throughout the year, ranging from 13°C to 24°C. September is the warmest month, though highs remain moderate at 24°C with a mean of 18°C. January is the coolest month, with minimum temperatures around 13°C and an average of 18°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.

Cajamarca is a very wet location, receiving approximately 3008mm of precipitation annually, which averages out to around 251mm per month. The wettest month is April, averaging 428mm of rainfall. March and November also tend to see above-average precipitation. The driest month is August, with just 100mm. That's 328mm less than April, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.

Cajamarca is relatively calm, with an average annual wind speed of 1km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 1km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 0km/h gap between the calmest and windiest months.

It is currently summer in Cajamarca, which began on June 21, 2026. Cajamarca sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in September at around 24°C, while the coldest stretch bottoms out in January near 13°C. Autumn is next, beginning on September 23, 2026 — 92 days from now.

The best time to visit Cajamarca is during August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 100mm per month. By contrast, September can be uncomfortably hot with highs reaching 24°C, while January is the coldest period with lows dropping to 13°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Cajamarca based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.