January weather forecast
Peru

January falls in the middle of the Peruvian summer, characterized by distinct climatic patterns across the country's three main regions: the coast, the mountains, and the rainforest.

In the coastal region, including notable cities such as Lima and Trujillo, January is one of the warmest months of the year, with average temperatures hovering between 20°C (68°F) to 30°C (86°F). This time of the year is particularly suitable for beach activities, with plenty of sun and very little rainfall.

Meanwhile, in the Andean region, January marks the peak of the rainy season. Cities like Cusco and Arequipa experience frequent downpours, with precipitation levels reaching an average of 160mm (6.3"). Despite the rainfall, daytime temperatures are fairly mild, ranging from 10°C (50°F) to 18°C (64.4°F), though nighttime temperatures can fall to 0°C (32°F), especially in higher altitudes.

In the Amazon rainforest, cities such as Iquitos and Puerto Maldonado experience a hot and wet climate. January is among the rainiest months, with precipitation levels reaching 300mm (11.81"). Despite the high rainfall, temperatures remain consistently warm, usually exceeding 30°C (86°F).

Compared to December, the previous month, January sees an increase in rainfall in both the Andean and Amazon regions, while temperatures remain relatively stable. Looking ahead to February, the climatic conditions in all three regions of Peru are generally consistent with January, maintaining similar temperatures and precipitation levels.

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• Lima - January »
  The low temperature average during January reflects a slight decrease to a pleasant 20.3°C (68.5°F) from the day's peak. January through April, November and December, with an average maximum UV index of 6, are months with the highest UV index in Lima, Peru.
• Arequipa - January »
  The month with the most rainfall in Arequipa is January, when the rain falls for 17.1 days and typically aggregates up to 81mm (3.19") of precipitation. January through December, with an average maximum UV index of 4, are months with the lowest UV index in Arequipa, Peru.
• Cusco - January »
  The month with the most rainfall in Cusco is January, when the rain falls for 18 days and typically aggregates up to 145mm (5.71") of precipitation. The months with the highest UV index in Cusco are January through April, August through December, with an average maximum UV index of 12.
• Trujillo - January »
  January, February, April, May, November and December, with an average of 6h of sunshine, are months with the most sunshine in Trujillo, Peru. January, February, April, May, November and December, with an average of 6h of sunshine, are months with the most sunshine in Trujillo.
• Chiclayo - January »
  In Chiclayo, January's climate is marked by consistently warm days, with the temperature hovering from 21.5°C (70.7°F) to 26.1°C (79°F). The months with the highest UV index in Chiclayo are January through June, November and December, with an average maximum UV index of 6.
• Iquitos - January »
  In January, the average heat index, which factors the actual air temperature with the relative humidity, is calculated to be 39°C (102.2°F). The months with the lowest UV index in Iquitos are January through July, November and December, with an average maximum UV index of 6.
• Callao - January »
  The months with the least rainfall in Callao are January, April, May, September through December Rain falls for 2.3 days and accumulates 1mm (0.04") of rain. The months with the least rainfall in Callao are January, April, May, September through December Rain falls for 2.3 days and accumulates 1mm (0.04") of rain.
• Pucallpa - January »
  On the first day of January in Pucallpa sunrise is at 05:43 and sunset at 18:19. As Pucallpa welcomes January, the average high-temperature is noted at a still hot 32.6°C (90.7°F), closely aligning with the preceding month.
• Tacna - January »
  On the first day of January in Tacna sunrise is at 05:08 and sunset at 18:20. In January, in Tacna the rain falls for 12.8 days.
• Chimbote - January »
  In Chimbote during January, the rain falls for 4.3 days and regularly aggregates up to 4mm (0.16") of precipitation. On the first day of January in Chimbote, Peru, sunrise is at 05:58 and sunset at 18:37.
• Ica - January »
  The year kicks off with Ica, Peru sporting a steady climate, making January comparable in temperature to its succeeding month. In Ica, Peru, in January, it is raining for 18.5 days, with typically 32mm (1.26") of accumulated precipitation.