Last updated: August 27, 2025
September in La Merced, Peru presents a fascinating array of weather patterns, where temperatures oscillate between a maximum of 14°C (57°F) and a minimum of -2°C (29°F), resulting in an average chill of 6°C (44°F). During this month, the region witnesses significant precipitation, accumulating 162 mm (6.4 in) over 28 days of rain, contributing to a humidity level of 62%. This blend of cool temperatures and frequent showers creates a lush atmosphere, perfect for nature enthusiasts and those seeking to explore the region's striking landscapes.
In September, La Merced experiences refreshingly cool temperatures, with minimums hovering around -2°C (29°F) and maximums reaching only 14°C (57°F). This month marks a slight warming trend from the chillier depths of winter, yet the average temperature remains consistent at around 6°C (44°F). While nights can be brisk, the days offer just a hint of warmth, making it a great time for outdoor pursuits amidst stunning scenic backdrops. As the month progresses, these patterns hint at the transition into spring, gradually inviting more temperate days ahead.
September in La Merced, Peru, marks a significant transition in the region's precipitation patterns. With 162 mm (6.4 in) of rain over 28 days, this month exhibits a noticeable increase compared to the drier months of June and July, which saw only 71 mm (2.8 in) and 66 mm (2.6 in), respectively. As the dry season fades, September’s rainfall begins to set the stage for the more humid months to come, where October continues the upward trend with 205 mm (8.1 in). This shift not only refreshes the landscape but also revitalizes the local ecosystems, highlighting the dynamic climate of La Merced as it transitions from the dry to the wet season.
In September, La Merced experiences a moderate leap in humidity, reaching 62% after the drier months of July and August, which saw humidity levels drop to 55% and 53%, respectively. This increase marks the beginning of a transitional phase as the region shifts between its dry season and the more humid weeks that follow. As the year progresses, September's humidity sets the stage for a gradual rise leading into October, when levels jump to 82%. The overall trend showcases La Merced's dynamic weather patterns, with a notable correlation between the changing seasons and humidity fluctuations, highlighting the lush, tropical essence of this vibrant Peruvian locale as it prepares for the upcoming rains.
In September, La Merced experiences a UV Index of 17, maintaining its extreme exposure category, which means that even with a slight decrease from the peak summer months, the risk of harm from the sun remains high. The consistent trend of dangerous UV levels from January through March, oscillating around 19, gradually tucks down to 18 by October. Notably, throughout the year, the burn time has been a brisk 10 minutes, underscoring the necessity for diligent sun protection in this vibrant Peruvian locale. Travelers and locals alike should remain vigilant as the UV index fluctuates, particularly in September. For more detailed information, visit La Merced UV Index.
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September in La Merced, Peru, glows with 326 hours of sunshine, marking a slight dip from the sun-drenched peak of the dry months. This month continues the trend of generous sunlight that has characterized the region since April, where residents and visitors alike have basked in over 295 hours of warmth, peaking at 340 hours in both July and August. As the transition to October approaches, September’s plentiful rays serve as a final embrace before the sunlight begins to wane into the softer glow of late fall. The gradual decrease in hours reminds us that while daylight may fade, the vibrant spirit of La Merced remains unwavering throughout the year.
In La Merced, Peru, September exhibits a moderate chance of sunny weather, with around 33% likelihood of sunshine. This places it in line with the drier summer months of July and August, which enjoy higher probabilities of clear skies. Following the wettest months of January through April, where the chances of sun start to increase, September signals a transition back to consistent weather patterns. Although it does not boast the highest rates for sun, it still offers a pleasant environment for visitors seeking to experience the lush beauty of the region as it begins to dry out. As we move into October, the forecast shifts again toward increased cloudiness, making September an ideal time to enjoy clearer days in La Merced.
As September unfolds in La Merced, Peru, residents and visitors alike can enjoy a generous 12 hours of daylight, marking a return to the balanced daylight seen during the earlier months of the year. Following a spell of consistent 11 hours from April through August, September heralds a shift back to longer days, reminiscent of the summer-like brightness of January through March. This seasonal rhythm showcases how La Merced experiences a harmonious cycle of light, with daylight gradually lengthening in the spring and returning to its full glory as autumn sets in. As the days grow brighter, September invites everyone to embrace the vibrant landscapes and outdoor activities that the region has to offer.
In September, La Merced experiences a gentle uptick in average wind speed, reaching 1.5 m/s (3 mph), making it one of the breezier months of the year. This slight increase aligns with a seasonal trend, as the wind often strengthens slightly during the spring months. Just prior, July and August also showcase moderate winds, both clocking in at 1.5 m/s (3 mph), while the quieter months of late fall and early winter display lower averages around 1.1 m/s to 1.2 m/s. September’s winds not only introduce a refreshing touch to the air but also hint at the changing dynamics of the region as it transitions into the more vibrant and lively months ahead.
Weather in La Merced varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in La Merced, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between September and January, we see some notable similarities and differences. Both months feature a minimum temperature of -2°C (29°F), but January's average temperature is slightly lower at 6°C (43°F), while September's average hovers around 6°C (44°F). Additionally, September experiences less precipitation, totaling 162 mm (6.4 in) over 28 days, compared to January's heavier rainfall of 255 mm (10.0 in) across 25 days. Humidity is notably higher in January at 91%, compared to September's 62%, which contributes to a more damp and chilly atmosphere during the former month. For more specifics, you can check La Merced weather in January.
September and February present quite similar temperature profiles, with both months experiencing a minimum of -2°C and average temperatures around 6°C. However, February tends to be slightly warmer with a maximum temperature of 15°C compared to September's 14°C. In terms of precipitation, February is significantly wetter, receiving 288 mm over 27 days, while September sees 162 mm across 28 days. This results in higher humidity levels in February at 89%, compared to September's 62%. For more detailed insights on February weather, you can check La Merced weather in February.
Both September and March feature similar average temperatures, with an average of 6°C (44°F) in September and 6°C (43°F) in March. However, March experiences significantly higher precipitation, receiving 355 mm (14.0 in) over 31 days compared to September’s 162 mm (6.4 in) over 28 days. Additionally, humidity levels rise notably in March, reaching 89% compared to September's 62%. This shift in weather conditions indicates that while temperatures are comparable, March is much wetter and more humid than September. For more insights on weather patterns during this time, you can refer to La Merced weather in March.
In comparing the weather between September and April, both months exhibit similar average temperatures, with minimums around -2°C (29°F) and maximums reaching about 14°C (57°F/58°F). However, April tends to be significantly wetter, with a total precipitation of 223 mm (8.8 in) compared to September's 162 mm (6.4 in), and it experiences slightly more precipitation days—29 in April versus 28 in September. Additionally, April's humidity is notably higher at 88%, reflecting a more moisture-laden atmosphere than September's 62%. For more details on April conditions, visit La Merced weather in April.
When comparing the weather of September and May, both months exhibit similar average maximum temperatures, with September reaching 14°C (57°F) and May at 14°C (58°F). However, September has a slightly lower average temperature of 6°C (44°F) compared to May's 7°C (44°F). Precipitation levels are quite comparable, with September receiving 162 mm (6.4 in) and May slightly less at 147 mm (5.8 in), both occurring over 28 days. Notably, May experiences higher humidity at 84% compared to September's 62%, contributing to a more damp atmosphere. For more insights about May weather, you can visit La Merced weather in May.
The weather in September is noticeably cooler and wetter compared to June. Both months share the same temperature range, with minimums at -2°C (29°F), averages at 6°C (44°F), and maximums at 14°C (57°F). However, September experiences significantly higher precipitation at 162 mm (6.4 in) across 28 days, while June only sees 71 mm (2.8 in) over 21 days. Furthermore, humidity levels are slightly higher in June at 73%, compared to 62% in September. For more detailed weather information, you can check La Merced weather in June.
In comparing the weather of September and July, we notice some distinct differences. September experiences slightly milder temperatures, with a minimum of -2°C (29°F) and an average of 6°C (44°F), while July has a minimum of -3°C (26°F) but a similar average of 6°C (43°F). Both months have similar maximum temperatures, reaching around 14°C (57°F in September and 58°F in July), but September is notably wetter, receiving 162 mm (6.4 in) of precipitation across 28 days compared to July's 66 mm (2.6 in) over 19 days. Additionally, September's humidity is higher at 62%, while July's humidity sits at 55%. For more detailed weather information, you can check La Merced weather in July.
In comparing the weather patterns of September and August, we see that September experiences slightly milder temperatures, with a minimum of -2°C (29°F) and a maximum of 14°C (57°F), while August has a lower minimum of -4°C (25°F) and a similar maximum of 14°C (58°F). Both months average around 6°C (44°F), but September is wetter, receiving 162 mm (6.4 in) of precipitation over 28 days, compared to August's 76 mm (3.0 in) over 18 days. Additionally, September has a higher humidity level at 62%, in contrast to August's 53%. For more detailed insights into August weather, visit La Merced weather in August.
In September, temperatures range from a minimum of -2°C (29°F) to a maximum of 14°C (57°F), with an average of 6°C (44°F). The month sees significant precipitation, totaling 162 mm (6.4 in) over 28 days, with a humidity level of 62%. In contrast, October maintains similar temperature averages, with a minimum of -1°C (30°F) and a maximum of 14°C (57°F), while precipitation increases to 205 mm (8.1 in) across 29 days. Additionally, the humidity rises to 82%. This trend highlights that October is not only wetter but also more humid than September. For more detailed weather patterns, check out La Merced weather in October.
In September, the weather features a range of temperatures from a chilly -2°C (29°F) at night to a comfortable maximum of 14°C (57°F) during the day, with an average temperature of 6°C (44°F). September experiences considerable rainfall, totaling 162 mm (6.4 in) over 28 days, contributing to a humidity level of 62%.
In contrast, November sees slightly milder temperatures, with nighttime lows of -1°C (30°F) and highs reaching 14°C (58°F), resulting in an average of 7°C (45°F). Precipitation increases to 189 mm (7.5 in), occurring over 27 days, and the humidity rises significantly to 89%. This shift in weather patterns highlights November as a wetter and more humid month. For a closer look at what to expect, check out La Merced weather in November.
In September, the weather tends to be cooler with average temperatures around 6°C (44°F) and a maximum of 14°C (57°F). While it experiences a reasonable amount of precipitation at 162 mm (6.4 in) over 28 days, the humidity sits at a moderate 62%. In contrast, December brings slightly higher average temperatures at 7°C (44°F) and a maximum of 15°C (59°F), but it is notably wetter, with precipitation reaching 257 mm (10.1 in), also over 28 days. The increase in humidity to 91% in December contributes to a much more overcast and damp atmosphere. For more detailed information, you can refer to La Merced weather in December.
As September rolls in, La Merced experiences a distinct shift in weather compared to other months. The temperatures are cooler, with an average chill that lingers around 6°C, starkly contrasting with the warmer summer months. Additionally, the region encounters significant rainfall, with a notable 162 mm falling over 28 days, leading to increased humidity levels hovering around 62%. This combination of conditions creates a unique ambiance, where the lush greenery flourishes amidst the cool, damp air. For more insights into the weather patterns and how they shape the environment, explore our page on La Merced Climate.