January Weather in Junin, Peru

Last updated: August 27, 2025

January in Junin, Peru presents a unique climate experience characterized by cool temperatures and considerable rainfall. With a maximum temperature reaching 14°C (58°F) and an average of 5°C (41°F), residents and visitors alike must prepare for the chill, especially as temperatures can plummet to a cool -5°C (23°F). This month sees significant moisture, accumulating 201 mm (7.9 in) over 25 days, which contributes to the region’s high humidity levels of 91%. Such conditions create a lush and vibrant environment, ideal for those who appreciate the beauty of nature amidst cooler, wet weather.

January Temperature in Junin

In January, Junin, Peru, experiences cool temperatures that typically range from a minimum of -5°C (23°F) to a maximum of 14°C (58°F), with an average temperature holding steady at 5°C (41°F). This month marks the beginning of the rainy season, contributing to a slightly damp atmosphere. As the year progresses into February and March, the temperatures show mild increases, with highs peaking at 15°C (59°F) and consistent averages around 5°C (41°F). Notably, March sees a slight dip in the maximum temperature, hinting at the gradual transition into cooler months. By the time April rolls around, temperatures stabilize, but the persistent chill continues into the following months, with July and August showcasing the coldest lows, plummeting to -7°C (20°F). Overall, while January kicks off the year with its cool embrace, the subsequent months maintain a steady pattern of mild averages and variable daytime highs, creating a crisp climate throughout the region.

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

The chart illustrates January temperature patterns in Junin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Junin, 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).
JanFebMarAprMayJunJulAugSepOctNovDec414141404038373839404242
Data source: Temperature data for Junin 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 Junin

January in Junin, Peru witnesses significant rainfall, with an average precipitation of 201 mm (7.9 in) spread over 25 days. This marks the beginning of the region's wet season, setting the stage for even heavier rains in subsequent months, peaking in March with 247 mm (9.7 in). As the year progresses, rainfall decreases sharply, with June and July bringing only 39 mm (1.5 in) and 35 mm (1.4 in), respectively. This trend highlights a distinct wet to dry transition, as the rainy season gives way to drier months, enabling a dramatic shift in the landscape and local activities. The pattern of prolonged rainy days in early months underscores the intensity of the precipitation, while the later part of the year reveals a welcome respite for residents.

January Precipitation Trends in Junin

The chart displays monthly precipitation patterns in Junin, 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 Junin, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec2012292471258839355096139177199
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Junin

In January, Junin, Peru, experiences its peak humidity at an impressive 91%, creating a noticeably damp atmosphere that characterizes the height of the wet season. This high level of humidity persists slightly into February at 90%, before gradually transitioning as the months progress. By March, conditions remain similarly humid, yet a subtle decline begins, leading to a drop to 89% in April. As winter approaches, the humidity continues to decrease significantly, plummeting to 65% in June and reaching a comfortable 38% by August. This distinct trend showcases a seasonal shift: from the lush, moisture-laden air of early months to the drier conditions that prevail mid-year, illustrating Junin's unique climate rhythm throughout the year.

January Average Humidity in Junin

This chart illustrates the average monthly humidity levels in Junin, 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 Junin is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%91%89%85%65%47%38%40%56%76%90%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Junin

In January, Junin, Peru experiences an extreme UV Index of 20, with a rapid burn time of just 10 minutes. This pattern persists throughout the following months, as both February and March maintain the same intense exposure, emphasizing the need for diligent sun protection. As the year progresses into April, the UV Index drops slightly to 18, yet it remains in the extreme category, indicating continued caution is necessary. The trend shows a gradual decrease during the mid-year months, with June and July registering at 13 and 14 respectively, still classified as extreme. Interestingly, the UV levels then rebound in late September through November, reaching 19, before slightly tapering off in December. Regardless of the month, the consistent short burn time reinforces the importance of staying vigilant against UV exposure in this region. For more detailed insights into these trends, visit Junin UV Index.

Maximum UV Index Levels in Junin for January

The chart shows the monthly maximum UV Index (UVI) for Junin 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 Junin typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec202020181513141517191919
Data source: Junin 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 Junin

In January, Junin, Peru, enjoys a promising start to the year with 212 hours of sunshine, setting the stage for a remarkable upward trend in daylight hours. As the months progress, the sunshine steadily increases, peaking in August with an impressive 339 hours of bright rays. This gradual buildup illustrates the enchanting transition from summer to fall, where the sun's embrace becomes increasingly generous. However, as the year begins to wind down, the sunshine hours gently taper off, with a decline in November to 275 hours and further to 278 hours in December. This seasonal fluctuation highlights Junin's vibrant climate, inviting visitors to bask in its sun-soaked allure, especially in the peak months of mid-year.

Monthly Sunshine Duration in Junin: January Highlighted

The January sunshine duration represents the total number of hours Junin 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.
JanFebMarAprMayJunJulAugSepOctNovDec212h240h262h299h329h315h333h339h323h314h275h278h
Data source: Junin January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Junin During January

In January, Junin, Peru experiences a mere 4% chance of sunny weather, making it one of the cloudiest times of the year. As we transition into February, this slight chance of sun only increases to 7%. The trend suggests a gradual improvement towards the middle of the year, with the likelihood of sunny days rising noticeably in the months that follow. By April, the chances jump to 15%, and then steadily climb to 22% in June. This upward trajectory continues, peaking in July at 37%, before tapering off again in the latter half of the year. Overall, while January might not offer much sunshine, the coming months bring a glimmer of hope for brighter days ahead.

Percentage of Sunny Days in January in Junin

The chart illustrates the percentage of sunny days in Junin 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 Junin experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec5%7%5%15%25%22%37%28%22%15%5%15%
Data source: Junin January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Junin in January

In January, Junin, Peru experiences a delightful 12 hours of daylight, a trend that continues into February and March, providing ample sunlight for outdoor activities and cultural explorations. As the year transitions into April, daylight begins to wane slightly, settling at 11 hours and persisting through the colder months of May, June, July, and August. This consistent reduction emphasizes the region's seasonal shift towards shorter days. However, the sun's return is welcomed in September, when daylight again reaches 12 hours, a pattern that persists from October through December, ensuring a balance of light throughout the year. This cyclical rhythm of daylight in Junin beautifully complements the region's vibrant climate and lifestyle.

Average Daylight Hours in Junin for January

The chart illustrates the variation in daylight duration in Junin throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 40m12h 26m12h 7m11h 49m11h 34m11h 27m11h 31m11h 44m12h 1m12h 20m12h 37m12h 45m
Data source: Junin daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Junin

In January, the wind in Junin, Peru presents a gentle embrace, with an average speed of 1.5 m/s (3 mph), setting a calm tone for the start of the year. This tranquility continues into February, where the winds slightly increase to 1.7 m/s (4 mph), suggesting a gradual upsurge in breeziness as summer approaches. March maintains a similar pace at 1.6 m/s, reflecting a steady flow, while April shows a return to January’s mild conditions. As the months progress into the middle of the year, we see a noteworthy trend: July and August both enjoy stronger winds at 1.8 m/s (4 mph), hinting at a seasonal peak. Interestingly, September sees a further rise to 1.9 m/s, before the winds taper off again in the latter months. By late autumn, November and December bring back the gentle winds of January, with speeds returning to 1.4 m/s (3 mph) and 1.6 m/s (4 mph), encapsulating the rhythmic ebb and flow of Junin's atmospheric dance throughout the year.

Average January Wind Speed in Junin

The chart displays monthly wind speed patterns in Junin, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.5 m/s1.71.61.51.61.41.81.81.91.71.41.6
Data source: Junin January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Junin Compares to Other Months

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

In comparing the weather between January and February, both months experience similar average temperatures, with January showing a minimum of -5°C (23°F) and February slightly warmer at -3°C (27°F). The maximum temperature also sees a small increase in February, reaching 15°C (59°F), compared to January's 14°C (58°F). Precipitation in February is higher, with 229 mm (9.0 in) over 26 days, compared to January's 201 mm (7.9 in) over 25 days. Humidity levels remain high in both months, with January at 91% and February slightly lower at 90%. For a detailed look at February's weather patterns specifically in Junin, you can find more information here: Junin weather in February.

In January, temperatures range from a minimum of -5°C (23°F) to a maximum of 14°C (58°F), with an average of 5°C (41°F). The month experiences a significant amount of precipitation, totaling 201 mm (7.9 in) over 25 days, all while maintaining a high humidity level of 91%. In contrast, March sees slightly warmer temperatures, with a minimum of -2°C (28°F) and a maximum of 13°C (55°F), while the average remains the same at 5°C (41°F). However, it experiences even heavier rainfall, accumulating 247 mm (9.7 in) over 31 days, with humidity levels still high at 91%. For more details about March weather, you can visit Junin weather in March.

In January, the weather features a broader range of temperatures, with minimums dipping to -5°C (23°F) and maximums reaching 14°C (58°F), resulting in an average temperature of 5°C (41°F). The month sees significant precipitation with 201 mm (7.9 in) falling over 25 days and a high humidity level of 91%. In contrast, April maintains a similar temperature profile, with minimums slightly higher at -4°C (25°F) and the same maximum of 14°C (58°F), along with an average temperature of 5°C (41°F). However, April experiences less precipitation at 125 mm (4.9 in) over the same number of days, leading to a marginally lower humidity of 89%. For more details, check out Junin weather in April.

In January, the weather is characterized by a broader range of temperatures, with a minimum of -5°C (23°F) and a maximum reaching 14°C (58°F), resulting in an average temperature of 5°C (41°F). This month also sees significant precipitation, totaling 201 mm (7.9 in) over approximately 25 days, along with high humidity levels at 91%. In contrast, May exhibits slightly cooler averages, with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 14°C (57°F), yielding an average of 4°C (40°F). Precipitation also drops significantly to 88 mm (3.5 in) over 23 days, with humidity lowering to 85%. For more detailed insights into May weather in Junín, you can visit Junin weather in May.

In January, the weather is characterized by a range of temperatures from a chilly -5°C (23°F) to a milder 14°C (58°F), with an average of 5°C (41°F). This month experiences significant precipitation, totaling 201 mm (7.9 in) over 25 days, contributing to a high humidity level of 91%.

In contrast, June sees a slight dip in temperatures, with a range from -5°C (23°F) to a maximum of 13°C (55°F), resulting in an average temperature of 4°C (39°F). The precipitation decreases drastically to just 39 mm (1.5 in) over 12 days, and the humidity drops to 65%.

For a more detailed look at the climate during this time, you can check Junin weather in June.

In January, the weather is characterized by much colder temperatures, with minimums dipping to -5°C (23°F) and average highs reaching 14°C (58°F). This month sees substantial precipitation, accumulating to 201 mm (7.9 in) over 25 days, contributing to a high humidity level of 91%. In contrast, July presents a milder climate, with temperatures ranging from a minimum of -6°C (21°F) to a maximum of 13°C (56°F), and a significantly lower average temperature of 3°C (38°F). Rainfall is minimal in July, totaling just 35 mm (1.4 in) across 11 days, resulting in a much drier atmosphere with a humidity level of 47%. For more details on this month’s weather, check out Junin weather in July.

January and August display striking contrasts in weather conditions. In January, temperatures range from a chilly -5°C (23°F) to a comfortable 14°C (58°F), with an average of 5°C (41°F). This month experiences significant precipitation, totaling 201 mm (7.9 in) over 25 days, resulting in high humidity levels of 91%. In contrast, August presents a cooler temperature profile with a minimum of -7°C (20°F) and an average of 3°C (38°F), while still reaching a maximum of 14°C (58°F). Precipitation is considerably lower at 50 mm (2.0 in), occurring over just 14 days, and humidity drops to a much drier 38%. For more details, you can visit Junin weather in August.

In January, the weather tends to be colder with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 14°C (58°F) and an average temperature of 5°C (41°F). This month is also characterized by significant precipitation, totaling 201 mm (7.9 in) over 25 days, coupled with high humidity levels at 91%.

In contrast, September sees slightly milder temperatures, with a minimum of -4°C (25°F), an average of 4°C (39°F), and a maximum of 13°C (55°F). The precipitation in September is considerably lower at 95 mm (3.8 in), occurring over 23 days, and humidity drops significantly to 40%.

For more detailed information about the weather conditions in September, check out Junin weather in September.

January and October present notably different weather patterns. In January, temperatures range from a chilly -5°C (23°F) at night to a mild 14°C (58°F) during the day, with an average of 5°C (41°F). This month experiences significant precipitation, totaling 201 mm (7.9 in) over 25 days, and high humidity at 91%. In contrast, October sees slightly cooler temperatures, with a minimum of -5°C (23°F), an average of 4°C (40°F), and a maximum of 13°C (57°F). Precipitation decreases to 139 mm (5.5 in) over 26 days, and humidity drops significantly to 56%. Overall, while January is wetter and more humid, October allows for slightly cooler and less oppressive conditions. For more details about the weather in October, you can visit Junin weather in October.

January and November exhibit some similarities in temperature, with both months averaging around 5°C (41°F) and peaking at 14°C (58°F). However, January tends to be slightly colder at its minimum temperature, reaching as low as -5°C (23°F), compared to November's minimum of -3°C (27°F). In terms of precipitation, January experiences a heavier rainfall of 201 mm (7.9 in) over 25 days, while November sees less with 177 mm (7.0 in) across 27 days. Additionally, January's humidity is notably higher at 91%, in contrast to November's more moderate humidity level of 76%. For a closer look at weather specifics, you can check Junin weather in November.

In January, the weather mirrors that of December, with both months featuring similar temperature ranges from a minimum of -5°C (23°F) to a maximum of 14°C (58°F). January typically sees an average temperature of 5°C (41°F) compared to December's slightly higher average of 42°F. Precipitation remains consistent, with January receiving 201 mm (7.9 in) over 25 days, while December experiences 199 mm (7.8 in) across 28 days. Humidity levels are also quite close, with January at 91% and December at 90%. For a detailed look at December weather patterns in this region, you can visit Junin weather in December.

Compare Junin's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Junin

In January, Junin experiences a distinctly cooler climate compared to the warmer summer months, as temperatures tend to hover around the lower end of the spectrum. The month is characterized by a notable increase in precipitation, with frequent rainy days that contribute to a high humidity level that hovers around 91%. This combination creates a surprisingly chilly atmosphere, making it a stark contrast to the dry and warmer conditions often found in other months. For more insights into Junin's weather patterns year-round, check out Junin Climate.