September Weather in Trujillo, Peru

Last updated: August 27, 2025

September in Trujillo, Peru offers a delightful blend of mild temperatures and minimal rainfall. With daytime highs reaching a comfortable 25°C (76°F) and an average of 18°C (64°F), the month is perfect for outdoor activities. Nights can dip to a cooler 10°C (51°F), inviting cozy evenings. The city sees only a light 6 mm (0.3 in) of precipitation across just one rainy day, ensuring ample sunshine for exploration. The humidity level rests around 62%, providing a refreshing atmosphere as you soak in the beauty of this coastal gem.

September Temperature in Trujillo

In September, Trujillo, Peru experiences a mild transition as temperatures begin to rise from the cooler winter months. With minimums around 10°C (51°F) and maximums peaking at 25°C (76°F), the weather is comfortably mild, making it an ideal time for outdoor activities. The average temperature hovers around 18°C (64°F), reflecting a gradual warming trend that invites both locals and visitors to enjoy the rich cultural offerings of the city. As the month progresses, the warmth hints at the approaching summer, prompting a shift from the cooler days of August and signaling the end of the chilly season.

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

The chart illustrates September temperature patterns in Trujillo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Trujillo, 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).
JanFebMarAprMayJunJulAugSepOctNovDec727373706865646364656669
Data source: Temperature data for Trujillo 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 Trujillo

In September, Trujillo experiences a subtle transition toward a wetter climate, registering 6 mm (0.3 in) of precipitation over just one day. This slight uptick marks a noticeable shift from the dry spell of the previous months, where July and August saw virtually no rainfall. Compared to the earlier months of the year, precipitation in September is significantly lower than peak levels observed in March, which boasts 72 mm (2.8 in) across 18 days. As the city moves into October, the precipitation is projected to increase slightly to 10 mm (0.4 in), hinting at the gradual return of the rainy season and signifying the rhythm of Trujillo’s climate as it prepares to embrace the upcoming months of increased moisture.

September Precipitation Trends in Trujillo

The chart displays monthly precipitation patterns in Trujillo, 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 Trujillo, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec3041723510454710825
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Trujillo

In Trujillo, Peru, September marks a transitional period in humidity levels, with an average of 62%. This is a noticeable increase from the dry months of July and August, where humidity dipped to 55% and 53%, respectively. As the dry season begins to soften, the rise in humidity hints at the impending return of moisture that characterizes the later months of the year, including the significant jump to 82% in October. This trend suggests that while September offers a reprieve from the summer's arid conditions, it also foreshadows a shift back towards the humid climate typical of Trujillo's year-end months, intensifying the lush landscapes and vibrant atmosphere the city is known for.

September Average Humidity in Trujillo

This chart illustrates the average monthly humidity levels in Trujillo, 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 Trujillo is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%90%89%84%73%55%53%62%82%89%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Trujillo

In September, Trujillo, Peru experiences a significant UV Index of 13, categorized as extreme, with a burn time of just 10 minutes. This month continues the trend seen throughout the year, where values peak at 15 during the height of summer from January to March. Although there is a slight dip from the high summer figures, September maintains a high UV index that warrants caution for sun exposure. As the year progresses towards October, the index rebounds to 14, reinforcing the need for protective measures against harmful rays. Given this pattern, it’s important for residents and visitors alike to remain vigilant about sun protection. For a comprehensive understanding of UV levels in this vibrant region, check out the detailed UV Index for Trujillo: Trujillo UV Index.

Maximum UV Index Levels in Trujillo for September

The chart shows the monthly maximum UV Index (UVI) for Trujillo 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 Trujillo typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151515141211111113141414
Data source: Trujillo 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 Trujillo

As September arrives in Trujillo, Peru, the city basks in 319 hours of sunshine, maintaining a consistent glow that has characterized the dry season. Following a peak in sunlight during August, which boasts 337 hours, September retains a strong embrace of light before gradually leading into the slightly less sunlit months of October and November—each featuring 335 and 319 hours, respectively. This pattern highlights the persistence of sunny, dry days that are a hallmark of Trujillo's vibrant coastal climate, allowing residents and visitors alike to enjoy the outdoors before the shift towards the end of the year. With summer transitioning into autumn, September stands as a celebration of abundant sunshine, a cherished time for both locals and tourists to indulge in the natural beauty of this Peruvian gem.

Monthly Sunshine Duration in Trujillo: September Highlighted

The September sunshine duration represents the total number of hours Trujillo 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.
JanFebMarAprMayJunJulAugSepOctNovDec255h295h293h306h329h319h335h337h319h335h319h318h
Data source: Trujillo September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Trujillo During September

In Trujillo, Peru, September presents a 44% chance of sunny weather, marking a transitional period as the city shifts from the drier months of winter into spring. Following the peaks of July and August, where the sun shines most brightly, September's likelihood of sunshine declines but remains relatively favorable compared to the earlier months of the year, such as January and March, which hover around the 16%-21% range. This moderate level of sunlight in September indicates a promising opportunity for outdoor activities, as the weather begins to warm up, inviting residents and visitors alike to embrace the blossoming scenery that heralds the coming of spring.

Percentage of Sunny Days in September in Trujillo

The chart illustrates the percentage of sunny days in Trujillo 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 Trujillo experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec17%21%16%27%58%49%66%53%44%27%27%28%
Data source: Trujillo September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Trujillo in September

In September, Trujillo, Peru, experiences a return to longer daylight hours, with 12 hours of sunlight gracing each day. This marks a noticeable contrast to the previous months, where daylight dipped to 11 hours from April to August. The transition back to 12 hours in September aligns with the warming and lengthening days of spring in the Southern Hemisphere, creating a vibrant atmosphere as the city embraces the seasonal change. This rhythmic pattern of daylight duration showcases Trujillo's unique climatic elegance, ensuring that the beauty of the landscape is well-illuminated for both residents and visitors alike.

Average Daylight Hours in Trujillo for September

The chart illustrates the variation in daylight duration in Trujillo throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 31m12h 20m12h 7m11h 54m11h 43m11h 38m11h 41m11h 50m12h 2m12h 16m12h 28m12h 34m
Data source: Trujillo daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Trujillo

In September, the wind in Trujillo, Peru maintains a gentle embrace, with an average speed of 2.1 m/s (5 mph). This slight dip from the peak of 2.2 m/s in the summer months suggests a transition, as the region shifts from its breezy winter to the more tempered autumn. The months of June through September all hover around the 2 m/s mark, demonstrating a consistent presence of refreshing winds that invigorate the coastal landscape. As the year unfolds, the winds gradually taper off into the less breezy months of December and January, yet September stands out as a delightful interlude, offering just enough vigor to entwine with the vibrant rhythms of daily life in Trujillo.

Average September Wind Speed in Trujillo

The chart displays monthly wind speed patterns in Trujillo, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.61.71.61.82.02.12.22.22.1 m/s2.02.01.9
Data source: Trujillo September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Trujillo Compares to Other Months

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

September weather in Trujillo features mild temperatures, with a minimum of 10°C (51°F) and an average of 18°C (64°F), peaking at a maximum of 25°C (76°F). This month sees minimal rainfall, averaging only 6 mm (0.3 in) over just one day, accompanied by a humidity level of 62%. In contrast, January experiences warmer conditions, with temperatures ranging from a minimum of 15°C (58°F) to an average of 22°C (72°F) and highs reaching 29°C (84°F). However, this month is characterized by significantly higher rainfall, totaling 30 mm (1.2 in) across about seven days, along with increased humidity at 91%. For more details, you can check Trujillo weather in January.

September and February present quite a contrast in weather patterns. In September, temperatures range from a mild minimum of 10°C (51°F) to a pleasant average of 18°C (64°F), peaking at a comfortable 25°C (76°F). The month sees only 6 mm (0.3 in) of precipitation over just one day, and the humidity is at a moderate 62%. Conversely, February is noticeably warmer, with minimum temperatures at 15°C (60°F), an average of 23°C (74°F), and highs reaching up to 30°C (86°F). However, February also brings significantly more rain, with 41 mm (1.6 in) spread over nine days, contributing to higher humidity levels at 89%. For more details, you can check Trujillo weather in February.

September and March present notably different weather patterns. In September, temperatures are milder, with a minimum of 10°C (51°F) and a maximum of 25°C (76°F), resulting in an average of 18°C (64°F). The month sees relatively low precipitation, just 6 mm (0.3 in) over only 1 day, and a comfortable humidity level of 62%. In contrast, March experiences warmer conditions, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 30°C (86°F), averaging 23°C (73°F). However, it is significantly wetter, receiving 72 mm (2.8 in) of rain over 18 days and a higher humidity of 89%. For more detailed information on March weather, you can visit Trujillo weather in March.

In September, the weather is generally milder with average temperatures ranging from a minimum of 10°C (51°F) to a maximum of 25°C (76°F). The month sees minimal precipitation, with only about 6 mm (0.3 in) falling over just one day, resulting in a humidity level of 62%. In contrast, April experiences warmer conditions, showcasing a minimum temperature of 15°C (59°F) and going up to a maximum of 28°C (83°F) with an average of 21°C (70°F). This month is significantly wetter, recording around 35 mm (1.4 in) of rainfall across nine days, contributing to a higher humidity of 88%. For more detailed insights, you can check Trujillo weather in April.

In September, the weather in Trujillo features a pleasant range of temperatures, with a minimum of 10°C (51°F) and a maximum reaching 25°C (76°F). The average temperature hovers around 18°C (64°F), accompanied by relatively low precipitation of just 6 mm (0.3 in) over 1 day and humidity at 62%. In contrast, May offers warmer conditions with temperatures ranging from a minimum of 13°C (55°F) to a maximum of 29°C (84°F), with an average of 20°C (68°F). Precipitation is slightly higher at 9 mm (0.4 in) over 1 day, and the humidity peaks at 84%. For more details on the climate during this month, you can check Trujillo weather in May.

The weather in September tends to be slightly cooler than in June, with average temperatures ranging from a minimum of 10°C (51°F) to a maximum of 25°C (76°F) compared to June's range of 12°C (53°F) to 26°C (79°F). September also experiences a bit more precipitation, with 6 mm (0.3 in) falling over one day, while June remains drier with only 4 mm (0.2 in) and no recorded rainy days. Additionally, September’s humidity averages 62%, which is lower than June's 73%, contributing to a distinct feel between the two months. For more detailed information, you can check Trujillo weather in June.

In comparing the weather of September and July, we find similar temperatures, with September experiencing slightly higher maximums at 25°C (76°F) compared to July's 24°C (76°F). Both months have a minimum temperature of around 10°C (50°F), and average temperatures remain consistent at 18°C (64°F). However, September sees a bit more precipitation, averaging 6 mm (0.3 in) over one day, whereas July has 5 mm (0.2 in) with no rainy days. Additionally, humidity levels are slightly higher in September at 62%, compared to July's 55%. For more detailed weather information about July, you can check out Trujillo weather in July.

In comparing the weather between September and August, September tends to be slightly warmer with average temperatures ranging from a minimum of 10°C (51°F) to a maximum of 25°C (76°F), while August has a slightly cooler average, with temperatures from 9°C (48°F) to the same maximum of 25°C (77°F). Additionally, September experiences a bit more precipitation with 6 mm (0.3 in) over 1 day, compared to August's minimal 4 mm (0.2 in) with no rainy days. The humidity also increases in September to 62%, compared to 53% in August. For more detailed information, you can check Trujillo weather in August.

In comparing the weather between September and October, we see a slight increase in minimum temperatures, with October starting at 12°C (53°F) compared to September's 10°C (51°F). Both months share similar average temperatures of 18°C (64°F), but October edges slightly higher with a maximum temperature of 26°C (79°F) versus September's 25°C (76°F). Precipitation also rises in October, accumulating to 10 mm (0.4 in) over two days, compared to just 6 mm (0.3 in) over one day in September. Additionally, humidity levels rise from 62% in September to a more noticeable 82% in October, contributing to a generally more humid atmosphere as the months transition. For more detailed insights, you can check Trujillo weather in October.

September and November showcase similar temperature ranges, with September averaging 18°C (64°F) and November slightly warmer at 19°C (66°F). Both months tend to have mild temperatures, with September's maximum reaching 25°C (76°F) and November slightly warmer at 26°C (80°F). However, November experiences higher humidity levels at 89%, compared to September's 62%, giving November a more humid feel. Interestingly, both months see little precipitation, with September receiving 6 mm (0.3 in) and November slightly increased at 8 mm (0.3 in), both typically experiencing just one day of rain. For more specific details on November weather, you can visit Trujillo weather in November.

In September, the weather in Trujillo is generally mild with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 25°C (76°F), and an average of 18°C (64°F). The month sees minimal rainfall, with only 6 mm (0.3 in) of precipitation over just 1 day and humidity levels at 62%. In contrast, December brings warmer conditions, with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 28°C (82°F), averaging 20°C (69°F). However, it is also the wettest month of the year, experiencing 25 mm (1.0 in) of precipitation over 6 days, combined with higher humidity levels at 91%. For more details, you can check Trujillo weather in December.

Compare Trujillo's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Trujillo

As September unfolds in Trujillo, visitors can expect a pleasant blend of mild temperatures and low precipitation, setting it apart from the wetter months that follow. With an average temperature of 18°C (64°F), the days are comfortably warm, while the low humidity keeps the atmosphere enjoyable. Unlike the more intense rainfalls experienced in other months, September showcases a brief period of dryness, with only one day of measurable rain. This makes it an ideal time for outdoor activities and exploring the stunning landscapes of the region. For those curious about how Trujillo's September weather stacks up against the rest of the year, detailed insights can be found at Trujillo Climate.