September Weather in Tulcan, Ecuador

Last updated: August 21, 2025

In Tulcan, Ecuador, September presents a mild and damp climate, characterized by maximum temperatures reaching 18°C (65°F) and an average of 10°C (51°F), dipping as low as 3°C (38°F) overnight. This month witnesses a significant amount of precipitation, totaling 101 mm (4.0 in) over approximately 20 days, contributing to an overall humidity level of 88%. Visitors to the region should prepare for cool, wet days, making it an ideal time for enjoying the lush landscapes and rich biodiversity unique to this enchanting area.

September Temperature in Tulcan

In September, Tulcan, Ecuador experiences mild temperatures, with minimums around 3°C (38°F) and maximums reaching 18°C (65°F). The average temperature hovers at 10°C (51°F), reflecting a slight warming trend as the region transitions toward the end of the cooler months. Notably, the temperature remains relatively stable compared to the preceding months, with September's figures mirroring the conditions of August while hinting at an impending rise as October approaches. This gradual warming suggests a perfect time for visitors to enjoy the crisp freshness characteristic of Tulcan, while the landscapes still bear the magic of a mild highland winter.

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

The chart illustrates September temperature patterns in Tulcan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tulcan, 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).
JanFebMarAprMayJunJulAugSepOctNovDec515252525150494950515252
Data source: Temperature data for Tulcan 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.

September Precipitation in Tulcan

September in Tulcan, Ecuador marks a distinct shift in precipitation patterns as the rainy season begins to moderate. With a total of 101 mm (4.0 in) of rain over just 20 days, September sees a significant drop from the heavier downpours of previous months. This decrease is evident compared to August's 116 mm (4.6 in), which, despite fewer rain days, delivered more rain. As the month transitions into October, precipitation begins to pick up again, hinting at the wetter months ahead. September's milder rain not only brings a brief respite but also sets the stage for the upcoming surge in rainfall intensity as the wet season continues its course into fall.

September Precipitation Trends in Tulcan

The chart displays monthly precipitation patterns in Tulcan, 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 Tulcan, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec231224275267241216176116101215320270
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Tulcan

In September, Tulcan, Ecuador, experiences a moderate humidity level of 88%, continuing its trend of lush, moist air characteristic of the region. Although this month sees a slight dip from the peak humidity recorded in the earlier months of March at 91%, it still remains comfortably above the more arid summer months of July and August, when humidity levels dropped to 78% and 80%, respectively. September's humidity aligns closely with the autumn months, hinting at a gradual return to the wetter conditions of the later year, as levels again climb to 90% in October. Overall, Tulcan's September humidity encapsulates the delicate balance of moisture that defines its climate, sustaining the vibrant landscapes and rich ecosystems that thrive in this high-altitude setting.

September Average Humidity in Tulcan

This chart illustrates the average monthly humidity levels in Tulcan, 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 Tulcan is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%91%88%87%84%78%80%88%90%89%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Tulcan

In September, Tulcan, Ecuador, continues to experience extreme UV levels, with a UV Index of 16 and a burn time of just 10 minutes. This marks a slight increase from the 15 recorded in the previous months of July and August. It is evident that the region generally maintains harsh UV conditions throughout the year, peaking at 19 in both March and April. As we transition into fall, while there’s a slight dip from the earlier months, the persistent UV challenge remains, underscoring the importance of sun safety. For insights into this crucial data and more, visit Tulcan UV Index.

Maximum UV Index Levels in Tulcan for September

The chart shows the monthly maximum UV Index (UVI) for Tulcan 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 Tulcan typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec171819191715151516171514
Data source: Tulcan 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 Tulcan

In September, Tulcan, Ecuador, basks in a remarkable 303 hours of sunshine, seamlessly continuing the city’s trend of abundant daylight. Following the peak of 304 hours in August, this month maintains a near-equal brightness, showcasing the region's splendid climate as it transitions into the fall. As summer wanes and October follows closely with 280 hours, the summer months reveal a consistent pattern, with an upward surge in daylight that begins in June and peaks during the height of summer. This sunny disposition not only enhances the vibrant landscapes but also invites locals and visitors alike to revel in the outdoor beauty of Tulcan during these bright days.

Monthly Sunshine Duration in Tulcan: September Highlighted

The September sunshine duration represents the total number of hours Tulcan 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.
JanFebMarAprMayJunJulAugSepOctNovDec221h255h266h253h256h255h269h304h303h280h235h276h
Data source: Tulcan September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Tulcan During September

In Tulcan, Ecuador, September marks a noticeable shift in the weather, boasting a 22% chance of sunny days, making it one of the sunniest months of the year. This increase in sunshine contrasts sharply with the preceding months, where the likelihood of clear skies dips to below 15%. Following a relatively gloomy spell from April to August, September stands out as a refreshing break, inviting outdoor enthusiasts to revel in warmer days. As the year progresses, the sun begins to reassert itself, providing a delightful glimpse of brighter weather ahead. This trend hints that those planning a visit to Tulcan in September can expect a more cheerful climate, perfect for exploring its scenic beauty.

Percentage of Sunny Days in September in Tulcan

The chart illustrates the percentage of sunny days in Tulcan 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 Tulcan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec12%4%4%4%12%10%13%10%22%10%8%8%
Data source: Tulcan September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Tulcan in September

In Tulcan, Ecuador, the rhythm of the seasons unfolds with a remarkable consistency, as the daylight duration remains a steady 12 hours throughout the year. This unwavering balance offers a unique charm, allowing residents and visitors alike to enjoy equal parts of day and night in September just as they do in any other month. There’s a sense of predictability in this cyclical pattern, fostering a lifestyle that harmonizes with the sun's reliable rise and set. Whether it's for vibrant daytime activities or tranquil evenings, September grants the gift of ample daylight, inviting everyone to embrace the beauty of both the sunlit adventures and the mysteries of the night.

Average Daylight Hours in Tulcan for September

The chart illustrates the variation in daylight duration in Tulcan throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 4m12h 4m12h 5m12h 7m12h 8m12h 9m12h 8m12h 7m12h 5m12h 4m12h 4m12h 4m
Data source: Tulcan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Tulcan

In September, the winds around Tulcan, Ecuador are characterized by a gentle average speed of 2.0 m/s (4 mph), maintaining a refreshing breeze that hints at the transition from the drier months of winter to the wetter season ahead. This slight decrease from the summer peak of 2.2 m/s in July and August signals a gradual softening, as the region prepares for the seasonal changes that October will bring. Interestingly, the wind pattern shows a gradual increase from the calmer early months of the year, where averages hover around 1.5 m/s. This trend towards a breezier atmosphere not only enhances the region's charm but also invites locals and visitors alike to revel in the pleasant September air. As the year progresses, Tulcan's winds reflect the natural ebb and flow of the seasons, creating an ever-evolving backdrop to its stunning landscapes.

Average September Wind Speed in Tulcan

The chart displays monthly wind speed patterns in Tulcan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.51.41.31.51.61.72.22.12.0 m/s1.41.21.3
Data source: Tulcan September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Tulcan Compares to Other Months

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

In September, the weather tends to be mild, with average temperatures hovering around 10°C (51°F) and a maximum of 18°C (65°F). The month experiences about 101 mm (4.0 inches) of precipitation over 20 days, contributing to a relatively high humidity of 88%. Conversely, January features slightly warmer temperatures, with an average of 11°C (51°F) and a maximum reaching 19°C (66°F). However, it also sees an increase in rainfall, accumulating 231 mm (9.1 inches) over 25 days, while maintaining similar humidity levels at 89%. For a more detailed look at January weather, visit Tulcan weather in January.

September and February in Tulcan showcase mild temperatures, though February tends to be slightly warmer. In September, the temperatures range from a minimum of 3°C (38°F) to a maximum of 18°C (65°F), while February sees a minimum of 4°C (39°F) and a peak of 19°C (67°F). However, February is notably wetter, experiencing 224 mm (8.8 in) of precipitation over 27 days compared to September's 101 mm (4.0 in) over 20 days. Humidity remains consistently high in both months, with February being slightly more humid at 90% compared to September's 88%. For those interested in more specific details, you can check out Tulcan weather in February.

In comparison, September tends to be slightly cooler than March, with average temperatures ranging from a minimum of 3°C (38°F) to a maximum of 18°C (65°F), while March shows a minimum of 5°C (41°F) and a similar maximum of 19°C (67°F). Both months experience considerable rainfall, but March is significantly wetter, averaging 275 mm (10.8 in) over 30 days, compared to September's 101 mm (4.0 in) over 20 days. This results in a higher humidity level in March at 91%, compared to September's 88%. For a detailed look at the climate during this time, check out Tulcan weather in March.

September and April exhibit similar maximum temperatures, with both reaching up to 18°C (65°F), but their overall weather patterns reveal notable differences. In September, the temperatures range from a minimum of 3°C (38°F) to an average of 10°C (51°F), with 101 mm (4.0 in) of precipitation over 20 days. In contrast, April features a slightly warmer minimum of 5°C (42°F) and an average temperature of 11°C (52°F), but is significantly wetter, with 267 mm (10.5 in) of precipitation across 29 days. Both months share a high humidity level of 88%, highlighting the damp conditions typical of this region. For a closer look at April weather, you can visit Tulcan weather in April.

When comparing the weather in September and May, both months exhibit similar maximum temperatures peaking at around 18°C (65°F). However, September tends to be slightly cooler, with average temperatures ranging from a minimum of 3°C (38°F) to a maximum of 18°C (65°F), while May features a slightly warmer range of 5°C (42°F) to the same upper limit. Precipitation levels also differ significantly; September sees a total of 101 mm (4.0 in) of rain over about 20 days, whereas May experiences higher rainfall, with 241 mm (9.5 in) spread across 30 days. Despite the increase in precipitation, the humidity is quite similar, averaging around 88% in September and 87% in May. For a more detailed understanding of May weather, you can check out Tulcan weather in May.

When comparing the weather in September and June, we notice some distinct differences. September typically sees cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 18°C (65°F), while June experiences slightly warmer conditions, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 17°C (63°F). Despite these minor temperature differences, June has significantly higher precipitation, measuring 216 mm (8.5 in) over 29 days compared to September’s 101 mm (4.0 in) over 20 days. Additionally, September boasts a higher humidity level at 88% compared to June's 84%. For those curious about the specifics, more details on June's weather can be found here: Tulcan weather in June.

In comparing the weather between September and July, both months feature similar maximum temperatures, with September averaging 18°C (65°F) and July at 18°C (64°F). However, September is slightly cooler overall, with a minimum temperature of 3°C (38°F) compared to July's minimum of 4°C (39°F). Rainfall is notably higher in July, with 176 mm (6.9 in) of precipitation over 27 days, while September experiences 101 mm (4.0 in) over 20 days. Additionally, September has a higher humidity level of 88%, in contrast to July’s 78%. For more details on July weather, you can visit Tulcan weather in July.

In September, the weather shows a slight warming trend compared to August, with average temperatures remaining constant at 10°C (51°F), but with a slightly higher maximum of 18°C (65°F) compared to August's 17°C (63°F). The minimum temperature in September is also slightly higher at 3°C (38°F) versus August's 2°C (37°F). However, September experiences more precipitation, totaling 101 mm (4.0 in) over 20 days, compared to August's 116 mm (4.6 in) over 23 days. Additionally, September has higher humidity at 88%, in contrast to August's 80%. For a more detailed look at August's weather, you can visit this link: Tulcan weather in August.

In September, temperatures in Tulcan range from a minimum of 3°C (38°F) to a maximum of 18°C (65°F), with an average temperature of 10°C (51°F). The month experiences considerable precipitation, totaling 101 mm (4.0 in) over 20 days, and the humidity sits at a high 88%. In contrast, October sees slightly increased temperatures, with a minimum of 4°C (39°F) and a maximum of 20°C (67°F), maintaining an average of 11°C (51°F). However, October is noticeably wetter, with 215 mm (8.5 in) of precipitation over 28 days and humidity rising to 90%. For more details on the weather specifics, you can visit Tulcan weather in October.

September and November present distinct differences in weather patterns. In September, temperatures range from a minimum of 3°C (38°F) to a maximum of 18°C (65°F), with an average of 10°C (51°F). The month experiences considerable precipitation of 101 mm (4.0 in) over 20 days, accompanied by high humidity at 88%. In contrast, November sees slightly warmer temperatures, with a minimum of 5°C (42°F) and a maximum of 19°C (67°F), averaging 11°C (52°F). However, November is significantly wetter, with precipitation totaling 319 mm (12.6 in) over 29 days and a humidity level slightly higher at 89%. For more detailed insights, check out Tulcan weather in November.

In September, the weather features mild temperatures, with a minimum of 3°C (38°F) and an average of 10°C (51°F), reaching up to 18°C (65°F). The month sees significant precipitation, totaling 101 mm (4.0 in) over approximately 20 days, accompanied by high humidity at 88%. By contrast, December offers slightly warmer temperatures, with a minimum of 4°C (40°F) and an average of 11°C (52°F), while still peaking at 18°C (65°F). However, December is much wetter, accumulating 270 mm (10.6 in) of rainfall over 29 days, and the humidity remains relatively high at 86%. For a closer look at December weather in Tulcan, you can visit Tulcan weather in December.

Compare Tulcan's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Tulcan

In September, Tulcan experiences a notable shift in weather compared to other months, characterized by cooler temperatures and increased humidity. The average temperature hovers around a brisk 10°C (51°F), making it a time for cozy layers as the city welcomes frequent rain—with precipitation occurring on nearly two-thirds of the days that month. The overall atmosphere is quite humid, reaching around 88%, which contributes to a lush and vibrant landscape. This month stands out with its heavier rainfall and cooler climate, making it unique in the annual weather patterns of this charming Ecuadorian town. For more detailed insights, please visit Tulcan Climate.