Climate in Arequipa: Temperature, seasons and the best time to go

Published: 22 January 2025 | Update: 11 December 2025 | Reads: 6712

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Arequipa, known as the "White City", is one of the most representative destinations of the southern highlands and part of the Peru Highlights. Due to its geographical location, at 2,335 meters above sea level and surrounded by the Andes Mountains, the climate of the city is dry and sunny during almost the whole year. However, the temperature changes between day and night are sharp, which requires proper planning.

The climate is a deciding factor when scheduling high mountain excursions or visits to natural attractions in the Arequipa region. Activities such as climbing the Misti volcano or trekking in the Colca Canyon depend directly on seasonal conditions to guarantee safety and visibility. Therefore, having accurate weather information is essential to ensure a good travel experience.

This guide will provide you with data about the seasons of the region: the dry season and the rainy season. We will analyze the average temperatures and the most recommended months for outdoor activities, allowing you to choose the ideal time for your visit.

General Features of the Climate in Arequipa

Compared to other regions of the southern highlands, the climate of Arequipa is one of the most stable and pleasant in the country. Thanks to its location, the city enjoys a mild and dry climate, with very low relative humidity; because of this, Arequipa is famous for having more than 300 days of sun per year, which makes it easy to do tourist activities without interruptions.

However, due to the altitude and the closeness to the desert, the region has a high thermal range; that is, there is a big difference between the day and night temperatures. Although the sun is constant, the air can be cold, especially in shaded areas or in the late afternoon.

The annual cycle in Arequipa is divided mainly into two seasons:

The Dry Season in Arequipa

The dry season in Arequipa is the longest and most stable of the year. From April to November, the region is known for relatively low humidity and an almost total absence of rain. During this period, visibility is perfect, with clear skies that allow you to see the volcanic mountain range with maximum clarity, which makes it easier to take landscape photos and navigate mountain routes.

Although daytime temperatures are constant and pleasant (ranging between 22°C and 25°C), the lack of clouds causes the heat to escape quickly at sunset. As a result, the nights in the dry season are usually the coldest of the year, especially between June and August, when temperatures can drop to 5°C or 7°C in the city, and go below 0°C in higher altitude areas like the Colca Canyon.

Recommended Activities during the Dry Season

This is the ideal time for technical expeditions and adventure sports, as the weather risk is minimal:

High Mountain Climbs: It is the best time to climb the Misti and Chachani volcanoes, because the ground is dry and there is little chance of snow or thunderstorms.
Trekking in the Colca: Hiking routes in the Colca Canyon are much safer, avoiding landslides or muddy paths caused by rain.
River Sports: The flow of the Chili River stays controlled, which allows for regular rafting with stable difficulty levels.
Urban Tourism: Exploring the Historic Center and the city's convents is much more comfortable under the constant sun of this season.

Arequipa Climate

The Rainy Season in Arequipa

The rainy season in the Arequipa region lasts from December to March. During this period, cloudiness increases and the relative humidity rises slightly compared to the extreme dryness of the rest of the year. Although the rainfall is usually not as intense as in the Amazon jungle or in cities like Cusco, intermittent storms can happen, generally during the afternoons and nights.

Despite the rain, the climate in the White City stays mild. Temperatures fluctuate between an average minimum of 10°C and a maximum of 20°C. Unlike other highland destinations, like Puno and Lake Titicaca, temperatures in Arequipa do not usually reach extremes below zero in the urban area during these months.

Recommendations and Logistical Considerations

If your visit to the region happens during these months, it is essential to adjust the planning of your activities:

Clothing: It is necessary to include waterproof jackets or technical rain ponchos in your luggage, as well as footwear with good grip to avoid slipping on the city's stone streets.
Impact on Transport: Heavy rains in high areas can cause delays for buses going to the Colca Canyon or partial blockages due to landslides on mountain roads.
Mountain Safety: Climbing volcanoes like Misti or Chachani is not recommended at this time due to the risk of thunderstorms and the presence of snow on the peaks, which makes visibility and movement difficult.
Landscapes: A positive side of this season is that the surrounding desert and the agricultural terraces of the Colca Valley turn green, offering a visually different and vibrant landscape.

Arequipa Weather

Monthly Climate Breakdown: In Which Months Does It Rain in Arequipa?

Arequipa enjoys exceptional weather that minimizes extremes, but it has specific variations throughout the year that travelers should consider.

Seasonality Identification

Rainiest Month: February stands out as the month with the highest concentration of rainfall. Rains are more frequent and heavy during this period, which can impact "Treks and Adventure in Peru" itineraries or visibility on mountain routes.
Coldest Months: The months of June and July are the coldest of the year. This cold is felt mainly during the night, due to the complete lack of cloudiness in the dry season, which allows nighttime temperatures in the city to drop considerably. It is the time that requires the most warm clothing for mornings and nights.
Warmest Month: October is usually statistically the warmest month in Arequipa. Daytime temperatures are high, potentially exceeding 24°C, before the transition to the rainy season.

Averages and peculiarities of the climate in Arequipa

Average temperature
Throughout the year, Arequipa enjoys an average temperature that ranges between 10°C and 24°C. This makes it a city with a temperate climate, ideal for those who want to escape the extremes.
The influence of sea level
Located more than 2,000 meters above sea level, Arequipa presents peculiar climatic characteristics. This factor influences temperatures and the rainfall pattern, making the climate of Arequipa different from that of other Peruvian cities.

Month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Maximum daily temperature (°C)

20 °C

21 °C

20 °C

21 °C

Minimum daily temperature (°C)

10 °C

9 °C

8 °C

7 °C

8 °C

9 °C

Total precipitation (mm)

Importance of rainfall in Arequipa

Agriculture and local ecosystems
Rainfall in Arequipa plays a fundamental role for local farmers. During the rainy season, crops receive the water they need to thrive. In addition, the native flora and fauna of the region also depend on this rainfall for their life cycle.
Water catchment for consumption
Despite being known for its mostly dry climate, rainfall in Arequipa is vital to replenish the water sources that supply the city. Rainfall feeds rivers, springs, and reservoirs that are essential for human consumption and agricultural activities.
Tourism and recreational activities
Rain can influence tourist activities. During the rainier months, some outdoor activities may be limited. However, this also provides an opportunity to enjoy other cultural attractions in the city, such as museums, galleries, and theaters.

FAQs: Frequently asked questions about the weather in Arequipa

What is the best time to visit Arequipa?
The best time to visit Arequipa is during the months of May to November, as it is the dry season and temperatures are pleasant.
What is the weather like in Arequipa compared to other cities in Peru?
The weather in Arequipa is more comfortable compared to cities like Lima or Cusco, although nights can be cool due to its altitude.
Is it necessary to bring warm clothing all year round?
Although Arequipa has a temperate climate, it is advisable to bring some warm clothing, especially if you plan to be out at night or visit in the colder months.

Arequipa, with its architectural beauty and rich history, is a destination that many love. Knowing the climate of Arequipa will allow you to enjoy your visit to the fullest, whether you prefer the warmth of the sun or the freshness of the Andean air. If you are thinking of visiting this gem of southern Peru, prepare yourself for an unforgettable experience!

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