Last updated: August 27, 2025
September in Lambayeque, Peru offers a delightful climate characterized by mild temperatures and notably low precipitation. With a maximum of 23°C (73°F) and an average of 18°C (65°F), the days are comfortably warm, while the evenings cool down to a minimum of 15°C (59°F). This month experiences an impressive humidity level of 86%, creating a lush atmosphere despite recording only 2 mm (0.1 in) of rainfall across zero rainy days. Ideal for outdoor activities, visitors can enjoy the region's rich cultural heritage under clear, pleasant skies.
In September, Lambayeque, Peru, experiences a noticeable coolness as winter transitions to spring, with temperatures reflecting a mild trend throughout the month. The typical minimum temperature hovers around 15°C (59°F), offering a refreshing start to the day, while the average settles at 18°C (65°F). Daytime highs reach a comfortable 23°C (73°F), creating pleasant conditions for outdoor activities. This gradual increase from the cooler preceding months suggests a shift toward more inviting weather, making September an appealing time to enjoy Lambayeque's vibrant culture and landscapes. As the region warms slightly, visitors can expect a delightful blend of mild temperatures and invigorating breezes.
In Lambayeque, Peru, the month of September is characterized by a significant decline in precipitation, mirroring the region's transition into its dry season. With only 2 mm (0.1 in) of rain recorded and no precipitation days, September stands out as one of the driest months of the year. This trend follows the peak of rainfall in March, which sees a notable jump to 75 mm (3.0 in) over 9 days, before the dry spell takes hold. As the region gears up for the drier months of October and November, with light rainfall amounts of 10 mm (0.4 in) and 8 mm (0.3 in) respectively, September's dry conditions highlight the stark contrast between the wet season's abundance and the impending dryness that defines the latter part of the year.
In September, Lambayeque, Peru experiences a humidity level of 86%, a slight increase from the preceding months. This trend reflects a gradual rise in moisture, with humidity peaking in May at 89% before settling into the mid-80s during the dry winter months of July and August. As the region transitions into spring, humidity levels rebound, maintaining a comfortable balance that characterizes the climate of Lambayeque. This pattern is indicative of a stable environment, where humidity does not vary drastically but rather shows a gentle ebb and flow throughout the year. By October, humidity remains steady at 87%, continuing the trend of a humid coastal climate that supports the diverse ecosystem in this vibrant region.
In September, Lambayeque, Peru, continues to experience a notably high UV Index of 14, categorized as extreme. This is consistent with the trend observed throughout the year, where the UV Index rarely drops below 11. The region's intense sun exposure, with a burn time of just 10 minutes, highlights the importance of sun protection even as the month transitions into the brighter days of spring. Following the peaks observed in the earlier months, September maintains this elevated level, reminding residents and visitors alike to stay vigilant against UV radiation. For a detailed overview of the yearly UV trends, visit Lambayeque UV Index.
UV Risk Categories
September in Lambayeque, Peru, continues the region's delightful trend of abundant sunshine, providing residents and visitors with 315 hours of warm daylight. As the transition from the peak of winter approaches, September's hours of sunshine are slightly lower than the previous month but maintain the high standards set by the flourishing late winter and early spring. The months leading up to September steadily build towards this impressive light pattern, with totals increasing from 269 hours in January to a peak of 331 hours in May. This gradual rise showcases the region's inviting allure as the year progresses, ensuring that September remains a delightful prelude to the abundant sunlight that October’s 333 hours promises.
In Lambayeque, Peru, September sees a 34% chance of sunny weather, which offers a pleasant opportunity for outdoor activities. While this figure is noticeably higher than the autumn months of October and November, it falls below the peak sunny months of May and July, where the chances soar to 45% and 50% respectively. The trend shows that as the year progresses into the dry season, particularly from May through July, residents and visitors can enjoy a more reliable sun-drenched experience. September reflects a slight dip from the summer exuberance but remains a favorable time to embrace the warmth before the cooler, cloudier months approach.
In Lambayeque, Peru, the daylight duration showcases an intriguing pattern throughout the year. Starting with a consistent 12 hours of daylight from January to March, the days gradually shorten to 11 hours from April until August. This mid-year reduction creates a distinct seasonal change, after which the daylight duration rebounds in September, returning to 12 hours. This rejuvenation carries through to October, November, and December, highlighting a return to lengthier days as the year draws to a close. The cycle reflects the dynamic interplay of natural light, making Lambayeque a region of consistent yet varied daylight experiences.
As September unfolds in Lambayeque, Peru, the average wind speed hovers around 4.7 m/s (11 mph), maintaining the brisk pace set in August. This consistency in wind velocity marks a transition into the final stretch of the year, as the winds remain relatively strong compared to earlier months, peaking in October at 4.8 m/s. The spring months show a gradual increase in wind speeds, starting from 3.5 m/s (8 mph) in March to the robust 4.7 m/s in September, suggesting a seasonal trend towards more invigorating breezes. As the year progresses, the winds begin to taper off slightly in November and December, but the stable and refreshing gusts of September signal a time of renewal and energy, perfectly suited for outdoor adventures in this vibrant region.
Weather in Lambayeque varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Lambayeque, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is mild with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 23°C (73°F), and an average of 18°C (65°F). The humidity is relatively high at 86%, but the month experiences negligible precipitation, with no rainy days recorded. In contrast, January presents warmer weather, showcasing a minimum temperature of 18°C (65°F) and peaking at 31°C (88°F), with an average of 23°C (74°F). This month witnesses more significant rainfall, totaling 14 mm (0.6 in) over four days, while the humidity remains slightly higher at 88%. For more details, you can visit Lambayeque weather in January.
When comparing the weather in September and February, notable differences emerge. September typically sees milder temperatures, with a minimum of 15°C (59°F) and an average of 18°C (65°F), while February is warmer, featuring a minimum of 19°C (66°F) and an average of 25°C (76°F). February also experiences significantly more precipitation, with 40 mm (1.6 in) over about six days, compared to September's dry conditions with only 2 mm (0.1 in) and no rainy days. Despite having slightly lower humidity, February remains quite humid at 85%, just a touch below September's 86%. For a detailed look at February weather, you can refer to Lambayeque weather in February.
In comparing the weather between September and March, we see a significant contrast in temperature and precipitation. September boasts a milder climate with minimum temperatures around 15°C (59°F) and an average of 18°C (65°F), whereas March experiences warmer conditions, with minimums starting at 19°C (66°F) and an average of 24°C (76°F), peaking at 31°C (88°F). Additionally, September is marked by its dryness, recording only 2 mm of precipitation over the month, while March is considerably wetter, with 75 mm of rain falling across 9 days. Despite the rain, humidity remains fairly consistent, with September at 86% and March slightly lower at 85%. For more insight, you can check Lambayeque weather in March.
In comparing the weather of September and April, we find notable differences in temperature and precipitation. September boasts a milder climate, with minimum temperatures around 15°C (59°F) and a maximum of 23°C (73°F), while enjoying minimal precipitation at just 2 mm (0.1 in) and no rainy days. In contrast, April experiences warmer temperatures, with a minimum of 17°C (63°F) and a maximum that reaches up to 28°C (83°F). However, April also sees more rainfall, totaling 21 mm (0.8 in) across three days, alongside slightly higher humidity levels at 87%. For a more detailed look at the weather conditions during this month, you can visit Lambayeque weather in April.
September and May exhibit distinct weather patterns, despite their similar minimum temperatures of around 15°C (59°F - 60°F). September tends to be cooler overall, with an average temperature of 18°C (65°F) and a maximum of 23°C (73°F), while May enjoys warmer temperatures, averaging 21°C (70°F) and peaking at 26°C (80°F). Additionally, May experiences more precipitation, with about 11 mm (0.4 in) spread across three days, compared to the dry September, which has negligible rainfall and humidity levels hovering around 86% versus May's 89%. For a more detailed look into the weather patterns in May, check out Lambayeque weather in May.
In September, temperatures exhibit a slight decrease, with a minimum of 15°C (59°F), an average of 18°C (65°F), and a maximum of 23°C (73°F). The month is characterized by minimal rainfall, with just 2 mm (0.1 in) and no days of precipitation, while humidity remains relatively high at 86%. In contrast, June offers slightly warmer conditions, with minimum temperatures of 16°C (61°F), an average of 20°C (68°F), and a maximum of 25°C (77°F). Similar to September, June also experiences minimal rain with 2 mm (0.1 in) and no days of precipitation, but humidity is just a touch lower at 85%. For a more detailed look at June's weather patterns, you can visit Lambayeque weather in June.
In comparison to July, September experiences a similar temperature range, with both months showcasing minimums of 15°C (59°F) and maximums around 23°C (73°F). However, September boasts a slightly cooler average temperature of 18°C (65°F) compared to 19°C (66°F) in July. Additionally, September has lower precipitation, accumulating just 2 mm (0.1 in) without any rainy days, while July sees a bit more rain at 4 mm (0.1 in) under similar conditions. Humidity levels are higher in September at 86%, compared to July's 82%. For more detailed insights on July weather, refer to this link: Lambayeque weather in July.
In September, the weather remains quite similar to August, with both months featuring a minimum temperature of around 15°C (59°F) and an average of 18°C (65°F). However, while August recorded a slight increase in precipitation at 3 mm (0.1 in), September enjoys even drier conditions with only 2 mm (0.1 in) of rainfall. Humidity also rises slightly from 84% in August to 86% in September, creating a marginally more humid atmosphere. For a closer look at August's weather specifics, you can explore Lambayeque weather in August.
In September, the weather is mild with a minimum temperature of 15°C (59°F) and a maximum of 23°C (73°F). This month typically experiences very little rainfall, averaging only 2 mm (0.1 in) and maintaining low humidity levels at around 86%. In contrast, October sees a slight increase in temperatures, with a minimum of 15°C (60°F) and a maximum reaching 24°C (76°F). However, precipitation levels rise significantly to 10 mm (0.4 in) over about three days, while humidity remains just marginally higher at 87%. For more details on October weather, visit Lambayeque weather in October.
In September, the weather tends to be mild with average temperatures ranging from 15°C (59°F) at night to a maximum of 23°C (73°F) during the day, accompanied by very little precipitation at just 2 mm (0.1 in) and no rainy days, making it a dry month. In contrast, November sees slightly warmer temperatures, with a minimum of 14°C (58°F) and a maximum of 26°C (78°F). However, November experiences a bit more rainfall, totaling 8 mm (0.3 in) across one day, and a slightly higher humidity level of 87%. For more detailed information, you can check out Lambayeque weather in November.
September and December weather in Lambayeque show notable differences in temperature and precipitation patterns. In September, the temperatures range from a minimum of 15°C (59°F) to a maximum of 23°C (73°F), with relatively low precipitation of just 2 mm (0.1 in) and no rainy days, maintaining a humid atmosphere at 86%. In contrast, December sees warmer temperatures, with a minimum of 17°C (63°F) and a maximum of 27°C (80°F) and increased precipitation of 15 mm (0.6 in) over three days, while humidity remains slightly higher at 87%. For more details on December weather in this region, you can check this link: Lambayeque weather in December.
As September rolls in, Lambayeque experiences a delightful transition in weather, characterized by mild temperatures and low precipitation. With an average temperature of around 18°C (65°F), this month is generally cooler than the muggy heat of summer while remaining pleasantly warm compared to the winter months. A noteworthy feature of September is the exceptionally low precipitation, with virtually no rain to disrupt outdoor plans. The humidity remains relatively high at 86%, yet the absence of rainy days creates ideal conditions for enjoying the region's stunning landscapes. For those seeking more insights into the weather patterns throughout the year, you can explore the Lambayeque Climate page.