January Weather in Arequipa, Peru

Last updated: August 27, 2025

January in Arequipa, Peru is characterized by a temperate climate with a maximum temperature reaching 23°C (73°F), while the average hovers around 13°C (55°F). Nighttime brings cooler air, with temperatures dipping to a minimum of 6°C (43°F). This month also sees significant rainfall, totaling 242 mm (9.5 in) across 25 days, making it one of the wetter periods of the year. Humidity levels are high at 89%, contributing to a crisp yet occasionally damp atmosphere. Visitors can expect a mix of warm afternoons and cool nights, interspersed with refreshing rainshowers that enrich the region's vibrant landscapes.

January Temperature in Arequipa

In Arequipa, Peru, January ushers in warm, pleasant temperatures, perfect for exploring this stunning region. The month typically experiences a minimum temperature of 6°C (43°F), reaching a comfortable average of 13°C (55°F), and peaking at a max of 23°C (73°F). As the summer progresses into February, temperatures begin to shift slightly, with a minimum of 7°C (44°F) and a max of 20°C (69°F), indicating a gentle cool-down. Notably, this trend continues into March, where the climate remains stable, but the daytime highs dip a bit. As the cooler months from June to August approach, the minimum temperatures drop to around 3°C (38°F) at night, yet daytime highs remain consistent near 23°C (74°F). Overall, Arequipa's January temperature paints a picture of mild summer warmth, hinting at the pleasantly moderate climate that follows throughout the year.

January Weather in Arequipa: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Arequipa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arequipa, January typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec555555565655555658595858
Data source: Temperature data for Arequipa generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Arequipa

In Arequipa, Peru, January experiences the peak of the rainy season, characterized by a significant precipitation amount of 242 mm (9.5 in) over approximately 25 days of rain. This deluge sets the tone for a wet start to the year, with February closely following at 235 mm (9.3 in) and 27 rainy days, maintaining the trend of high moisture. As March rolls in, the precipitation begins to taper off slightly to 231 mm (9.1 in) but remains impactful, with 29 days yet still yielding rain. By April, there’s a stark contrast, with precipitation plummeting to just 57 mm (2.3 in) over 12 days, heralding the dry season ahead. This noticeable decline in rainfall continues into the subsequent months, illustrating a shift from the abundant rainy period of early year to the relatively arid conditions that define Arequipa’s climate for the rest of the year, where July and August see virtually no rain at all. Thus, January stands out not only as the wettest month but also as a crucial transition point in the region's climatic patterns.

January Precipitation Trends in Arequipa

The chart displays monthly precipitation patterns in Arequipa, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Arequipa, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec2422352315761101121765
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Arequipa

In January, Arequipa experiences a high humidity level of 89%, setting the stage for a season marked by moisture. As the months roll into February and March, humidity slightly escalates to 90%, creating a somewhat muggy atmosphere. April sees a peak at 91%, signaling the height of the humid season. However, as the calendar turns to May, a dip occurs, dropping to 88%, before the humidity steadily declines over the ensuing months. By July, it plunges to 61%, providing a refreshing contrast during winter. As the year progresses, August and September bring even drier conditions with humidity dropping to 57% and 58%, respectively. This trend reverses as October approaches, with humidity rising again to 75%, and further increasing through November and December. Ultimately, the year closes at 84%, showcasing a cyclical pattern of humidity that defines Arequipa’s climate throughout the year.

January Average Humidity in Arequipa

This chart illustrates the average monthly humidity levels in Arequipa, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Arequipa is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%90%91%88%76%61%57%59%75%84%84%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Arequipa

In January, Arequipa experiences a staggering UV Index of 18, categorized as extreme, indicating an urgent need for sun protection as the burn time is a mere 10 minutes. This high level of UV exposure sets the tone for a summer that remains intensely harsh, with February and March following closely with similar values of 17. As we move into April, the UV Index slightly dips to 15, but still remains in the extreme category. Notably, exposure levels remain consistent, with the UV Index hovering around 12 to 18 months throughout the year, only softening to a very high rating of 10 in June. It's clear that the sun in Arequipa demands respect; staying informed and protected is crucial, especially during these peak months. For more details on the UV levels in this stunning city, visit Arequipa UV Index.

Maximum UV Index Levels in Arequipa for January

The chart shows the monthly maximum UV Index (UVI) for Arequipa in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Arequipa typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec181717151210111315171817
Data source: Arequipa January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

January Sunshine in Arequipa

In January, Arequipa bathes in a delightful 250 hours of sunshine, a warm introduction to a year that gradually illuminates even more as months progress. As February rolls in, the rays increase to 273 hours, setting the tone for longer, brighter days. This upward trend continues into March and April, reaching peak durations of 305 and 316 hours respectively, as the city embraces the onset of autumn. May to August shows a spectacular surge, peaking at 346 hours in August, presenting Arequipa as a sun-seeker's paradise. While the daylight gently recedes towards the end of the year, both November and December keep the sun alive with 353 and 351 hours respectively. Overall, the data reveals a vibrant sun-filled journey through the heart of Arequipa's summer, peaking in the mid-year months before gracefully tapering off towards year-end.

Monthly Sunshine Duration in Arequipa: January Highlighted

The January sunshine duration represents the total number of hours Arequipa experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec250h273h305h316h334h322h335h346h342h361h353h351h
Data source: Arequipa January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Arequipa During January

In Arequipa, Peru, January marks the beginning of a gradual shift towards sunnier days, yet the likelihood of sunshine remains relatively low at just 11%. This trend of limited sunlight doesn’t last long, however, as the following month, February, shows a slight uptick to 15%. As the year progresses, the chance of basking in the sun significantly increases, peaking in the mid-year months of July and August with impressive probabilities of 94% and 88% respectively. By April, the weather transitions dramatically, boasting a 53% chance of sunny skies. Overall, while January offers limited sunshine, it’s the gateway to a more radiant landscape as the year unfolds, inviting sun-seekers to anticipate the vibrant months ahead.

Percentage of Sunny Days in January in Arequipa

The chart illustrates the percentage of sunny days in Arequipa throughout the year, with January highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Arequipa experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec11%15%10%53%61%67%94%88%68%64%24%13%
Data source: Arequipa January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Arequipa in January

In Arequipa, Peru, January marks the beginning of a consistent pattern of daylight duration, featuring a balanced 12 hours of sunlight. This steady illumination continues into February and March, creating an ideal environment for outdoor activities. As the year progresses into April, daylight begins to slightly wane, dropping to 11 hours from April through August, offering a more temperate climate. The rhythm shifts again in September, when daylight returns to 12 hours, suggesting a vibrant transition toward the end of the year. Notably, December stands out with an increase to 13 hours of daylight, culminating the year with rich, extended evenings. Overall, Arequipa's daylight trends reflect a harmonious cycle, transitioning from stable lengths in the early months to a gradual ebb and flow, enhancing both the natural beauty and the lifestyle of this picturesque city.

Average Daylight Hours in Arequipa for January

The chart illustrates the variation in daylight duration in Arequipa throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 58m12h 36m12h 9m11h 41m11h 19m11h 8m11h 14m11h 34m12h12h 27m12h 52m13h 4m
Data source: Arequipa daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Arequipa

In January, Arequipa experiences a gentle breeze with an average wind speed of 1.6 m/s (4 mph), setting a consistent tone for the month. This calmness continues into February, maintaining the same wind speed, which creates a serene atmosphere perfect for enjoying the city’s stunning landscapes. As we transition into the following months, there is a slight increase in wind speeds, with April and onward averaging around 1.7 m/s (4 mph) to 1.9 m/s (4 mph). This gradual rise peaks during the mid-year months of July and August, where the winds reach a brisk 1.9 m/s (4 mph), contrasting the lighter breezes of early winter. Ultimately, while January and February set a tranquil stage in Arequipa, the steady increase toward summer months infuses the region with a refreshing dynamism that perfectly complements its captivating scenery.

Average January Wind Speed in Arequipa

The chart displays monthly wind speed patterns in Arequipa, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.6 m/s1.61.51.71.81.81.91.91.81.91.81.8
Data source: Arequipa January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Arequipa Compares to Other Months

Weather in Arequipa varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Arequipa, focusing on differences in temperature, rainfall, humidity, and UV levels.

January and February in Arequipa exhibit relatively mild temperatures, with January seeing a slight increase in maximum temperatures reaching up to 23°C (73°F), compared to February's maximum of 20°C (69°F). Both months have similar average temperatures of 13°C (55°F), while January has a slightly lower minimum temperature of 6°C (43°F) versus February's 7°C (44°F). Precipitation levels are comparable, with January receiving 242 mm (9.5 in) over 25 days and February a bit less at 235 mm (9.3 in) across 27 days. The humidity levels remain high in both months, hovering around 89% in January and rising slightly to 90% in February. For more detailed insights, you can check Arequipa weather in February.

In comparing the weather between January and March, both months display similar average temperatures, with January having a maximum of 23°C (73°F) and March peaking at 20°C (68°F). January tends to be slightly wetter, with 242 mm (9.5 in) of precipitation over 25 days compared to March’s 231 mm (9.1 in) over 29 days. Humidity levels are also quite close, with January at 89% and March just a bit higher at 90%. Overall, while the temperatures remain mild, March experiences a bit more frequent precipitation days. For more detailed insights, you can check Arequipa weather in March.

January and April in Arequipa exhibit distinct weather patterns despite their similar average temperatures. In January, the minimum temperature hovers around 6°C (43°F), with an average of 13°C (55°F) and a maximum reaching 23°C (73°F). The month is characterized by significant rainfall, accumulating 242 mm (9.5 in) over 25 days, accompanied by high humidity at 89%. In contrast, April shows slightly cooler temperatures, with a minimum of 5°C (41°F) and a maximum of 21°C (71°F) while maintaining the same average of 13°C (56°F). Precipitation drops dramatically to 57 mm (2.3 in) over just 12 days, and humidity rises slightly to 91%. This shift from January to April highlights a notable decrease in rainfall and a transition towards drier conditions. For more details on April's weather, you can refer to Arequipa weather in April.

In January, the weather features a wider range of temperatures with a minimum of 6°C (43°F), an average of 13°C (55°F), and a maximum of 23°C (73°F). January is also characterized by significant rainfall, totaling 242 mm (9.5 in) over approximately 25 days, and high humidity at 89%. In contrast, May sees similar temperature averages, with a minimum of 5°C (41°F), an average of 13°C (56°F), and a maximum of 23°C (74°F). However, May is markedly drier, experiencing only 6 mm (0.2 in) of precipitation across just 2 days, and slightly lower humidity at 88%. For more detailed insights, you can view Arequipa weather in May.

In January, the weather is characterized by relatively warmer temperatures ranging from a minimum of 6°C (43°F) to a maximum of 23°C (73°F), with an average of 13°C (55°F). However, this month is also marked by significant rainfall, with 242 mm (9.5 inches) spread over 25 days and high humidity at 89%. In contrast, June experiences cooler conditions, with temperatures showing a slight dip, ranging from a minimum of 4°C (39°F) to a maximum of 23°C (74°F), while maintaining the same average of 13°C (55°F). Notably, June is incredibly dry, receiving only 1 mm (0.0 inches) of precipitation over the entire month and experiencing just 0 rainy days, along with a decrease in humidity to 76%. For more insights, you can check out Arequipa weather in June.

January and July exhibit notable differences in weather conditions, despite having similar average temperatures. In January, temperatures range from a minimum of 6°C (43°F) to a maximum of 23°C (73°F), accompanied by significant rainfall of 242 mm (9.5 in) over 25 days, resulting in high humidity levels of 89%. In stark contrast, July features a slightly lower minimum temperature of 4°C (39°F), with an average of 13°C (55°F) and the same maximum of 23°C (73°F). However, it is characterized by remarkably dry weather, receiving only 1 mm of precipitation over the course of the month and experiencing zero rainy days, leading to a much lower humidity of 61%. For more detailed information, you can check Arequipa weather in July.

In January, the weather is characterized by mild temperatures ranging from a minimum of 6°C (43°F) to a maximum of 23°C (73°F), with an average of 13°C (55°F). It experiences significant rainfall, totaling 242 mm (9.5 in) over 25 days, resulting in a high humidity level of 89%. In contrast, August presents a similar temperature range, with a minimum of 3°C (38°F), an average of 13°C (56°F), and a maximum of 23°C (74°F). However, August stands out due to its dry conditions, recording no precipitation, zero rainy days, and a significantly lower humidity level of 57%. For more details on the August climate, you can check out Arequipa weather in August.

In January, the weather is characterized by moderate temperatures, ranging from a minimum of 6°C (43°F) to a maximum of 23°C (73°F), with an average of 13°C (55°F). However, this month experiences significant rainfall, totaling 242 mm (9.5 in) over 25 days, resulting in high humidity levels at 89%. In contrast, September showcases a milder climate with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 25°C (77°F), and a slightly higher average of 15°C (59°F). Remarkably, September is dry, with only 1 mm (0.0 in) of precipitation and no rainy days, leading to a more comfortable humidity level of 58%. For more details on September weather, visit Arequipa weather in September.

In January, the weather in Arequipa is characterized by a range of temperatures with a minimum of 6°C (43°F) and a maximum of 23°C (73°F), averaging around 13°C (55°F). The month sees significant precipitation, totaling 242 mm (9.5 in) over approximately 25 days, resulting in high humidity levels of 89%. In contrast, October offers slightly warmer average temperatures, with a minimum of 6°C (43°F) and a maximum of 24°C (76°F), averaging at 15°C (59°F). Notably, October experiences much drier conditions, with only 12 mm (0.5 in) of precipitation spread across just 3 days, leading to a lower humidity of 75%. For more details, visit Arequipa weather in October.

In comparing the weather of January and November, we see that both months enjoy mild temperatures, with January having a minimum of 6°C and an average of 13°C, while November sees slightly warmer conditions, with a minimum of 7°C and an average of 15°C. However, January experiences significantly higher precipitation, totaling 242 mm over 25 days, in stark contrast to November's much drier climate, which has only 17 mm over 5 days. Additionally, January's humidity is higher at 89%, compared to November's 83%. For more details on November weather, you can visit Arequipa weather in November.

January and December in Arequipa showcase similar yet distinct weather patterns. January experiences slightly warmer temperatures, with a minimum of 6°C (43°F) and a maximum of 23°C (73°F), compared to December's 7°C (45°F) and 24°C (75°F). However, January is marked by significantly higher precipitation, averaging 242 mm (9.5 in) over 25 days, while December sees only 65 mm (2.5 in) across 12 days. Humidity levels are higher in January at 89%, compared to December's 84%, contributing to a wetter and more humid start to the year. For a closer look at December's climate specifics, you can check Arequipa weather in December.

Compare Arequipa's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Arequipa

In January, Arequipa experiences a distinct shift in weather compared to other months. With temperatures averaging around 13°C (55°F) and peaking at 23°C (73°F), the days are generally mild but can feel cooler, particularly in the evenings. This month also brings significant rainfall, contributing to a high humidity level of 89% and frequent precipitation over 25 days. Unlike the drier spells of the rest of the year, January stands out as a time when the city feels vibrant and lush, making it a unique period to explore its natural beauty. For a more comprehensive understanding of the region's weather patterns, check out Arequipa Climate.