September Weather in Yanacocha, Peru

Last updated: August 27, 2025

In September, Yanacocha, Peru, experiences a cool and somewhat damp climate, with temperatures averaging around 4°C (40°F). The month sees maximum temperatures reaching up to 13°C (56°F) while occasionally dipping to a chilly -4°C (24°F) at night. Rainfall is a notable feature, with 90 mm (3.5 in) of precipitation spread across approximately 22 days, contributing to a relative humidity level of 40%. This combination of cool temperatures and frequent showers creates a unique atmosphere, making September a time of transition in this enchanting Andean region.

September Temperature in Yanacocha

In September, Yanacocha, Peru, experiences cool temperatures that set the stage for the transition into spring. The month sees minimum temperatures hovering around -4°C (24°F), with an average day reaching just 4°C (40°F) and a maximum of 13°C (56°F). As the seasons shift, the average temperature remains consistent with the cooler trend established in earlier months, such as August, which recorded even lower temperatures. Overall, September continues to reflect a lingering chill from winter, but nature begins to hint at warmer days ahead, making it a unique time for visitors to enjoy the crisp air and stunning landscapes.

September Weather in Yanacocha: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Yanacocha, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yanacocha, September 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).
JanFebMarAprMayJunJulAugSepOctNovDec424342414140383940414343
Data source: Temperature data for Yanacocha generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Yanacocha

In September, Yanacocha experiences a notable increase in precipitation, with 90 mm (3.5 in) of rain typically falling over 22 days. This reflects a transition period, as the rainfall begins to rise after the relatively dry months of July and August, which only saw 37 mm and 54 mm respectively. The trend continues into October and November, where precipitation rises further, peaking at 149 mm (5.9 in) in November. This pattern indicates that September serves as a crucial precursor to the wetter months ahead, signifying a shift in the region's climatic rhythm toward the rainier season. As the landscape absorbs this revitalizing rainfall, the lushness and vibrancy of the area are set to flourish in the ensuing months.

September Precipitation Trends in Yanacocha

The chart displays monthly precipitation patterns in Yanacocha, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Yanacocha, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec1831932321349541375490137149199
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Yanacocha

In September, Yanacocha, Peru experiences a notable shift in humidity, dropping to a moderate 40%. This marks a transition from the previous months, especially after August's low of 38%, positioning September as a relatively dry point in the year. The trend reflects a gradual decline in humidity from the sweltering heights of 91% in January to the much drier conditions seen during mid-year. As the region begins to inch closer to the wetter months of October and November, where humidity rebounds to 56% and 76% respectively, September serves as a pivotal bridge, offering a brief respite before the return of moisture to the air. This fluctuation showcases the dynamic climate of Yanacocha, underscoring its diverse weather patterns throughout the year.

September Average Humidity in Yanacocha

This chart illustrates the average monthly humidity levels in Yanacocha, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Yanacocha 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 September generated using information from the Copernicus Climate Change Service.

September UV Index in Yanacocha

In September, the UV Index in Yanacocha, Peru reaches an impressive 17, maintaining an extreme exposure category that requires caution. This value is slightly lower than the peak of 19 recorded in the early months of the year, but it still signifies a burn time of only 10 minutes—a reminder of the sun's potent rays in this region. The UV Index gradually dipped through the middle of the year but remains high as the country transitions into spring. As the year progresses, patterns show a consistent intensity in solar radiation that can prompt serious sun safety measures year-round. To learn more about UV radiation trends in this region, check out the detailed information at Yanacocha UV Index.

Maximum UV Index Levels in Yanacocha for September

The chart shows the monthly maximum UV Index (UVI) for Yanacocha in September, 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 September, the maximum UV index in Yanacocha typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec191919181513141517181818
Data source: Yanacocha September 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.

September Sunshine in Yanacocha

As September graces Yanacocha, Peru, the region basks in a still-abundant 315 hours of sunshine, marking a slight dip from August's peak of 330 hours. This month continues the trend of heightened daylight that begins in the early months of the year, peaking in May before gradually tapering off into the later months. The sunshine extends its warm embrace as autumn approaches, creating an inviting atmosphere that perfectly complements the region's vibrant landscapes. Although the hours of sunlight decrease slightly, September stands as a testament to the lingering essence of winter's end, promising a rich tapestry of natural beauty for residents and visitors alike.

Monthly Sunshine Duration in Yanacocha: September Highlighted

The September sunshine duration represents the total number of hours Yanacocha experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec207h235h260h292h321h305h324h330h315h308h265h273h
Data source: Yanacocha September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Yanacocha During September

In Yanacocha, Peru, the likelihood of sunny weather in September is relatively modest, with a 23% chance of sunshine. This marks a slight decline compared to the sunnier months of July and August, which enjoy 50% and 36% chances, respectively. As the year progresses from the dry peak of winter into the transitional spring months, September stands as a bridge, offering a bit of brightness before slipping back to the gloomier conditions seen in October and November. With the sunny percentages rising sharply in the middle of the year, September presents a unique opportunity for those seeking pleasant weather, although it does not quite reach the heights of summer.

Percentage of Sunny Days in September in Yanacocha

The chart illustrates the percentage of sunny days in Yanacocha throughout the year, with September 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 Yanacocha experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec6%8%6%13%24%24%50%36%23%15%5%13%
Data source: Yanacocha September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Yanacocha in September

In September, Yanacocha, Peru, enjoys a refreshing return to 12 hours of daylight, echoing the consistent brightness of the earlier months of the year. Following several months of gradually decreasing sunlight from April to August, when daylight dipped to 11 hours, September marks a seamless transition back to the longer days characteristic of January through March. This fluctuation creates a rhythmic pattern in the region's daylight duration, highlighting the balance between shorter winter days and the invigorating, expansive light that graces the landscape during the spring and summer months. As September's daylight beckons longer hours, it invites both residents and visitors to embrace the vibrant energy of the changing season.

Average Daylight Hours in Yanacocha for September

The chart illustrates the variation in daylight duration in Yanacocha throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 38m12h 24m12h 7m11h 50m11h 36m11h 30m11h 33m11h 45m12h 2m12h 19m12h 35m12h 42m
Data source: Yanacocha daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Yanacocha

As September rolls into Yanacocha, Peru, the wind begins to whisper with a refreshing vigor, averaging 1.8 m/s (4 mph). This marks a notable trend, as the wind speeds in the preceding months steadily climbed from a gentle 1.4 m/s (3 mph) in January to a peak of 1.9 m/s (4 mph) in July. Following the breezy summer months, September maintains this lively pace before gradually softening into the quieter tones of autumn. With this slight uptick in velocity during September, the wind serves as a gentle reminder of the changing seasons, creating an invigorating atmosphere that enhances the unique charm of the region. Whether you're on an outdoor adventure or simply enjoying the scenery, the September winds invigorate the spirit of Yanacocha.

Average September Wind Speed in Yanacocha

The chart displays monthly wind speed patterns in Yanacocha, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.41.51.51.51.61.51.91.81.8 m/s1.61.31.5
Data source: Yanacocha September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Yanacocha Compares to Other Months

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

In comparing the weather of September and January, we see some notable differences. Both months experience a minimum temperature of -4°C (24°F), but January tends to be slightly warmer on average, with an average of 6°C (42°F) compared to September's 4°C (40°F). Additionally, January records higher maximum temperatures, reaching up to 14°C (58°F) versus September's peak of 13°C (56°F).

However, January also brings significantly more precipitation, totaling 183 mm (7.2 in) over 25 days compared to September's 90 mm (3.5 in) over 22 days. This increase in rainfall is accompanied by a much higher humidity level in January at 91%, compared to a more comfortable 40% in September. For more detailed insights on weather conditions, you can check Yanacocha weather in January.

When comparing the weather in September and February, notable differences emerge in temperature and precipitation. In September, temperatures range from a chilly -4°C (24°F) to a milder 13°C (56°F), with an average of 4°C (40°F). The month sees about 90 mm (3.5 in) of precipitation, distributed over 22 days, and humidity levels are relatively low at 40%. In contrast, February experiences slightly warmer conditions, with temperatures from -2°C (28°F) to a maximum of 16°C (60°F), averaging 6°C (43°F). This month is significantly wetter, with 193 mm (7.6 in) of precipitation over 26 days, and the humidity rises dramatically to 90%. For a more detailed look at the weather trends during February, you can check the link: Yanacocha weather in February.

In comparing the weather patterns of September and March, a notable difference emerges in temperatures and precipitation levels. September experiences slightly cooler temperatures, with an average of 4°C (40°F) compared to March's average of 6°C (42°F), though both months see maximums around 13°C (56°F to 57°F). Precipitation in March is significantly higher at 232 mm (9.1 in) over 30 days, compared to September's 90 mm (3.5 in) across 22 days. Additionally, March exhibits greater humidity levels at 91%, indicating a much wetter atmosphere than September's 40%. For a detailed look at specific weather conditions, you can refer to Yanacocha weather in March.

When comparing the weather in September and April, we can see notable differences in temperature and precipitation. In September, the average temperature ranges from a chilly -4°C (24°F) to a maximum of 13°C (56°F), while April sees slightly warmer conditions with temperatures ranging from -3°C (26°F) to a maximum of 15°C (60°F). Additionally, April experiences higher precipitation levels with 134 mm (5.3 in) over 25 days, compared to September’s 90 mm (3.5 in) over 22 days, resulting in a much higher humidity of 89% in April versus just 40% in September. For further details, you can check out Yanacocha weather in April.

Comparing the weather in September and May reveals some interesting contrasts. In September, temperatures range from a chilly minimum of -4°C (24°F) to a comfortable maximum of 13°C (56°F), with an average of 4°C (40°F). The precipitation level is relatively high, totaling 90 mm (3.5 in) over 22 days, and the humidity is a manageable 40%.

In contrast, May experiences slightly cooler temperatures, with a minimum of -5°C (24°F) and a maximum of 14°C (58°F), yielding an average of 5°C (41°F). The precipitation is marginally higher at 95 mm (3.7 in), also spread over 22 days, but the key difference lies in the humidity, which soars to 85%. This higher humidity in May can make the air feel much heavier and damp compared to the drier conditions of September. For more detailed information, check out Yanacocha weather in May.

In comparing the weather of September and June, we see notable differences in both temperature and precipitation. September typically experiences a minimum temperature of -4°C (24°F) and a maximum of 13°C (56°F), while June is slightly cooler, with min temperatures reaching -6°C (22°F) and a maximum of 14°C (57°F). Both months have the same average temperature of 4°C (40°F). However, September is much wetter, with 90 mm (3.5 in) of precipitation over 22 days compared to June's 41 mm (1.6 in) over just 11 days. Additionally, humidity levels are higher in June at 65%, compared to September's lower 40%. For more detailed weather information, you can visit Yanacocha weather in June.

In comparing the weather between September and July, we see distinct differences in temperature and precipitation patterns. September has a milder temperature range with a minimum of -4°C (24°F) and a maximum of 13°C (56°F), while July experiences slightly cooler temperatures, reaching a minimum of -6°C (21°F) and a maximum of 15°C (59°F). Precipitation levels are notably higher in September, with 90 mm (3.5 in) over 22 days, compared to July's 37 mm (1.5 in) over just 9 days. Additionally, September tends to be less humid at 40%, while July has a higher humidity level of 47%. For more specific insights on July weather in this region, you can visit Yanacocha weather in July.

In comparing the weather of September and August, we observe a slight increase in overall temperatures, with September's maximum reaching 13°C (56°F) compared to August's 14°C (58°F). Both months display similar average temperatures, but September generally experiences milder conditions, notably with a higher minimum temperature of -4°C (24°F) versus August's -7°C (20°F). Precipitation levels also differ, as September sees a significant increase with 90 mm (3.5 in) of rain over 22 days, in contrast to August's 54 mm (2.1 in) over just 13 days. Humidity remains relatively consistent, hovering around 40% in September and slightly lower at 38% in August. For a deeper insight into August weather, visit Yanacocha weather in August.

In September, temperatures range from a minimum of -4°C (24°F) to a maximum of 13°C (56°F), with an average temperature of 4°C (40°F). The month also sees about 90 mm (3.5 in) of precipitation across 22 days, with humidity levels around 40%. In contrast, October brings slightly warmer temperatures, ranging from -4°C (26°F) to 15°C (60°F), with an average of 5°C (42°F). However, October experiences a notable increase in rainfall, totaling 137 mm (5.4 in) over 26 days, and humidity rises to 56%. For a more detailed look at the weather in October, check Yanacocha weather in October.

In September, the weather tends to be cooler, with average temperatures hovering around 4°C (40°F) and maximums reaching up to 13°C (56°F). The month is characterized by relatively low humidity at 40% and experiences about 90 mm (3.5 in) of precipitation over 22 days.

November, on the other hand, brings slightly warmer conditions, with average temperatures rising to 6°C (43°F) and highs of 15°C (60°F). This month also sees an increase in humidity, reaching 76%, and experiences more rainfall, totaling 149 mm (5.9 in) across 27 days. Overall, November is typically wetter and more humid compared to September. For a detailed look at specific weather conditions, you can check Yanacocha weather in November.

September and December exhibit notable differences in weather patterns, with December generally experiencing milder temperatures and increased humidity. In September, temperatures typically range from a minimum of -4°C (24°F) to a maximum of 13°C (56°F), with an average temperature of 4°C (40°F). This month sees an average precipitation of 90 mm (3.5 in) over approximately 22 days, and the humidity level is around 40%. In contrast, December offers slightly warmer temperatures, with a minimum of -4°C (25°F) and a maximum reaching 17°C (62°F), while the average temperature is 6°C (43°F). Additionally, precipitation rises significantly to 199 mm (7.8 in) across about 28 days, and humidity climbs to a much higher 90%. For more detailed information, you can check Yanacocha weather in December.

Compare Yanacocha's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Yanacocha

As September unfolds in Yanacocha, the weather presents a distinct character compared to other months. With cooler temperatures and increased precipitation, this month marks a transition, showcasing the shift towards the wetter season. Humidity levels remain moderate, enhancing the overall dampness that comes with frequent rain events. While daytime highs hover around a brisk 13°C (56°F), nights can dip into the chill of -4°C (24°F), creating a notable contrast that calls for layers and preparedness. This period of change is a reminder of Yanacocha's unique climate patterns, making it essential for visitors and residents alike to stay informed. For a detailed overview, explore the full Yanacocha Climate information.