September Weather in Coquimbo, Chile

Last updated: August 21, 2025

September in Coquimbo, Chile presents a charming transitional climate, where temperatures range from a balmy 29°C (85°F) at its peak to a cooler 7°C (44°F) at night, with an average of 14°C (57°F). This month boasts a remarkably dry atmosphere, recording just 1 mm (0.1 in) of rainfall over 0 days, making it an ideal time for outdoor activities. With a humidity level hovering around 50%, visitors can enjoy refreshing breezes amidst clear skies, providing an excellent backdrop for exploring the stunning coastal scenery.

September Temperature in Coquimbo

In September, Coquimbo, Chile, experiences a gentle transition from winter to spring, with temperatures reflecting this change. The minimum temperature hovers around 7°C (44°F), providing a crisp morning chill, while the average climbs to a comfortable 14°C (57°F). As the days progress, the maximum can reach up to 29°C (85°F), showcasing a delightful warmth that encourages outdoor activities and exploration. This month marks the beginning of warmer days, following the cooler winter months, with temperatures gradually rising from the lower averages in earlier months, particularly July and August. Overall, September heralds the arrival of spring, inviting visitors to embrace the vibrant atmosphere of Coquimbo.

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

The chart illustrates September temperature patterns in Coquimbo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Coquimbo, 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).
JanFebMarAprMayJunJulAugSepOctNovDec666664615855545557596163
Data source: Temperature data for Coquimbo 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 Coquimbo

September in Coquimbo, Chile, marks a subtle transition in the region's precipitation patterns, with only 1 mm (0.1 in) of rain recorded and no rainy days to speak of. Following the typically dry winter months characterized by minimal rainfall, September continues the trend of low precipitation seen since the onset of the year. This month’s scant rainfall adds to the cumulative average, aligning closely with the dry conditions prevailing from January to August, where the region experienced minimal moisture overall. As Coquimbo heads toward October, the trend suggests a prolonged dry spell, reinforcing the area's semi-arid climate even further.

September Precipitation Trends in Coquimbo

The chart displays monthly precipitation patterns in Coquimbo, 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 Coquimbo, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec01133528431110
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Coquimbo

In September, Coquimbo experiences a notable shift in humidity, averaging 50%. This marks a decline from the peak levels seen in the winter months, where humidity reached a high of 67% in July. As the transition from the cold of winter to the warmer spring begins, September's humidity reflects a gradual easing from the mid-year highs, aligning closely with the more temperate conditions of October at 48%. This seasonal shift indicates a move towards drier conditions, typical of Coquimbo’s climate as it heads into the summer months, where humidity continues to decrease, reaching a low of 35% by December. Overall, September serves as a pivotal month in the humidity cycle, signifying the transition from winter's dampness to the dryness characteristic of the upcoming summer.

September Average Humidity in Coquimbo

This chart illustrates the average monthly humidity levels in Coquimbo, 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 Coquimbo is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec39%40%46%50%58%62%67%64%50%48%41%35%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Coquimbo

As September rolls into Coquimbo, Chile, the UV Index remains noteworthy at 9, categorizing it as very high and indicating a burn time of just 15 minutes. This reflects a slight increase from the previous months, showing a return to more intense sun exposure after the milder winter. The trend is clear—while summer months (from January to March) peak at extreme levels, September serves as a transitional month, hinting at the increasing intensity of the sun as warmer days approach. With such high UV levels, it’s vital for residents and visitors alike to take protective measures. For detailed UV insights and trends, visit Coquimbo UV Index.

Maximum UV Index Levels in Coquimbo for September

The chart shows the monthly maximum UV Index (UVI) for Coquimbo 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 Coquimbo typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151412964569111415
Data source: Coquimbo 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 Coquimbo

In Coquimbo, Chile, September brings a delightful transition into spring with 334 hours of sunshine, marking a notable resurgence in daylight after the chill of winter. This month stands out as a prelude to the sun-soaked days ahead, showcasing a marked increase in sunshine compared to the cooler months of June and July, which recorded just 274 and 299 hours respectively. The upward trend continues from August's 319 hours, hinting at the vibrant warmth that October and November promise, with their respective totals of 368 and 388 hours. As the days grow longer, September invites both locals and visitors to bask in the rejuvenating rays that herald the joys of the warmer seasons.

Monthly Sunshine Duration in Coquimbo: September Highlighted

The September sunshine duration represents the total number of hours Coquimbo 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.
JanFebMarAprMayJunJulAugSepOctNovDec322h348h363h319h293h274h299h319h334h368h388h407h
Data source: Coquimbo September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Coquimbo During September

In Coquimbo, Chile, September stands out as a particularly sunny month, boasting a 75% chance of sunshine. This notable increase marks a clear transition from the cooler days of winter, reflected in the preceding months where sunshine probabilities fluctuated between 54% and 63%. As spring unfolds, the likelihood of clear skies and warm weather enhances, inviting both locals and visitors to embrace outdoor activities. With the sun’s return, September paves the way for a delightful taste of the sunny season ahead, making it a prime time to explore Coquimbo's stunning coastal landscapes.

Percentage of Sunny Days in September in Coquimbo

The chart illustrates the percentage of sunny days in Coquimbo 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 Coquimbo experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec69%65%61%48%60%61%54%64%75%74%68%64%
Data source: Coquimbo September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Coquimbo in September

In Coquimbo, Chile, the progression of daylight duration throughout the year reveals a captivating rhythm of seasonal change. As September arrives, the days are still relatively short, offering 11 hours of daylight—notably consistent with August. This transition marks a turning point, hinting at the impending increase in sunlight as the month of spring approaches. Following September, daylight begins to lengthen, peaking in December with a generous 14 hours. This gradual elongation showcases nature’s cycle, where the days dwindle to a minimum in winter and then flourish once again, inviting residents and visitors alike to revel in the vibrant daylight of the southern hemisphere.

Average Daylight Hours in Coquimbo for September

The chart illustrates the variation in daylight duration in Coquimbo throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 48m13h 6m12h 12m11h 19m10h 35m10h 13m10h 25m11h 4m11h 55m12h 49m13h 37m14h 1m
Data source: Coquimbo daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Coquimbo

As September rolls into Coquimbo, Chile, residents and visitors alike can feel a refreshing shift in the air with an average wind speed of 1.8 m/s (4 mph). This marks a slight uptick from the quieter months of winter, reflecting a gentle resurgence of the coastal breezes typical of springtime. While the winds have dipped to their lowest in May and June, they begin to pick up again in September, creating a perfect backdrop for outdoor activities. This subtle rise is complemented by stable winds seen throughout the year, with speeds peaking in late spring and early summer. Overall, September's weather serves as a delightful precursor to the more robust winds of the coming months, inviting exploration and enjoyment of Coquimbo's scenic landscapes.

Average September Wind Speed in Coquimbo

The chart displays monthly wind speed patterns in Coquimbo, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.02.01.81.61.31.41.41.51.8 m/s1.92.02.0
Data source: Coquimbo September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Coquimbo Compares to Other Months

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

In September, the weather features a wider temperature range with minimums around 7°C (44°F) and maximums peaking at 29°C (85°F), providing warm days and cooler nights. Humidity is relatively balanced at 50%, complemented by minimal rainfall of just 1 mm over no days. Conversely, January offers a more consistently mild climate with higher averages—minimums of 11°C (53°F) and maximums around 27°C (81°F). This month experiences dry conditions with no recorded precipitation and lower humidity at 39%. For a closer look at January's weather in Coquimbo, visit Coquimbo weather in January.

In September, the weather presents a wider temperature range, with minimums dipping to 7°C (44°F) and maximums soaring to 29°C (85°F), offering a pleasant average of 14°C (57°F). The month is relatively dry, recording only 1 mm of precipitation with zero rainy days, and features a moderate humidity level of 50%. In contrast, February brings milder temperatures, with lows around 13°C (55°F) and highs peaking at 27°C (81°F), resulting in a pleasant average of 19°C (67°F). Despite similar precipitation levels at 1 mm, February maintains a slightly lower humidity of 40%. For a closer look at February's climate specifics, you can visit Coquimbo weather in February.

September and March display mild yet distinct weather patterns. In September, temperatures range from a cooler minimum of 7°C (44°F) to a warm maximum of 29°C (85°F), with an average of 14°C (57°F). The month is characterized by low precipitation, with just 1 mm (0.1 in) of rain recorded across 0 days, and a humidity level of 50%. In contrast, March features slightly warmer temperatures, with a minimum of 11°C (52°F), an average of 18°C (64°F), and a maximum of 26°C (80°F). Like September, March also sees minimal rainfall of 1 mm (0.0 in) over 0 days, but with a slightly lower humidity of 46%. For more detailed information, you can check Coquimbo weather in March.

In September, temperatures range from a minimum of 7°C (44°F) to a maximum of 29°C (85°F), with an average of 14°C (57°F). The month sees very little precipitation, with only 1 mm (0.1 in) recorded and no rainy days, resulting in pleasantly dry conditions and 50% humidity. In contrast, April experiences slightly warmer temperatures, with a minimum of 10°C (50°F) and a maximum of 25°C (78°F), averaging 16°C (61°F). This month has a bit more precipitation—3 mm (0.1 in)—but still no rainy days, maintaining the same 50% humidity. For a closer look at the weather specifics, you can visit Coquimbo weather in April.

In September, the weather exhibits a notable warmth with maximum temperatures reaching up to 29°C (85°F), while May sees a cooler maximum of 24°C (76°F). Despite the similar minimum temperatures in both months, September boasts a much drier climate, recording only 1 mm of precipitation over zero rainy days, in contrast to May's 35 mm over three days, contributing to a comparatively higher humidity level of 58%. Overall, September presents a sunnier and more pleasant atmosphere, whereas May brings with it more rainfall and slightly higher humidity levels. For more detailed insights about May weather, visit Coquimbo weather in May.

In September, the weather tends to be warmer and drier compared to June. With minimum temperatures reaching 7°C (44°F) and maximums soaring up to 29°C (85°F), September showcases a more pleasant average of 14°C (57°F) with negligible precipitation at just 1 mm (0.1 in) over no rainy days. In contrast, June experiences cooler temperatures, ranging from a minimum of 5°C (42°F) to a maximum of 25°C (77°F), with an average of 13°C (55°F). Additionally, June sees more rain, accumulating 28 mm (1.1 in) across two days, and higher humidity levels at 62%. For further details, check out Coquimbo weather in June.

Comparing the weather in September and July reveals some notable differences. In September, temperatures range from a minimum of 7°C (44°F) to a maximum of 29°C (85°F), with an average of 14°C (57°F), and the month enjoys dry conditions with just 1 mm of precipitation over the whole month. In contrast, July experiences cooler temperatures, with a minimum of 4°C (40°F) and a maximum of 25°C (77°F), averaging 12°C (54°F). While July does see some precipitation—4 mm over 1 day—humidity levels are higher at 67%. For a more detailed look at July's climate, you can check Coquimbo weather in July.

In comparison to August, September experiences a slight increase in average temperature, rising from 13°C (55°F) to 14°C (57°F), showcasing a warmer atmosphere. Notably, September records a minimum temperature of 7°C (44°F), slightly higher than August's 5°C (42°F), while both months share the same maximum of 30°C (85°F). Precipitation is minimal in September, with only 1 mm (0.1 in) recorded over no days, compared to August's 3 mm (0.1 in) also over zero days. Humidity levels in September are lower at 50%, whereas August is characterized by a higher humidity of 64%. For a closer look at August's specific weather patterns, you can refer to Coquimbo weather in August.

September offers a warm transition from summer, with average temperatures ranging from a cool 7°C (44°F) at night to a pleasant 29°C (85°F) during the day. The month boasts minimal precipitation, with just 1 mm and no rainy days, and a humidity level of 50%. In contrast, October features slightly cooler nighttime temperatures, with a minimum of 6°C (43°F) and an average of 15°C (59°F). Daytime temperatures remain comfortable, peaking at 28°C (83°F), while also experiencing the same minimal rainfall of 1 mm over zero rainy days and a slightly lower humidity of 48%. For a detailed comparison of October weather, visit Coquimbo weather in October.

In September, temperatures range from a minimum of 7°C (44°F) to a maximum of 29°C (85°F), with an average of 14°C (57°F) and low humidity at 50%. The month sees minimal precipitation, with only 1 mm recorded over 0 days. In contrast, November experiences slightly milder temperatures, with a minimum of 9°C (49°F) and maintaining the same maximum of 29°C (85°F), giving an average of 16°C (61°F). Remarkably, November has zero precipitation and even lower humidity at 41%. For a detailed look at November weather conditions, visit Coquimbo weather in November.

In September, the weather typically features cooler temperatures with a minimum of 7°C (44°F) and an average of 14°C (57°F), reaching highs of 29°C (85°F). The month is relatively dry, with only 1 mm of precipitation and an average humidity of 50%. In contrast, December enjoys slightly warmer conditions, with temperatures ranging from a minimum of 10°C (50°F) to an average of 17°C (64°F), peaking at a maximum of 27°C (81°F). It remains quite dry as well, with no recorded precipitation and lower humidity at 35%. For more detailed information, you can check Coquimbo weather in December.

Compare Coquimbo's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Coquimbo

As September unfolds in Coquimbo, it ushers in a refreshing transition from the cool winter months to warmer spring days. With average temperatures rising to a comfortable 14°C, the region enjoys plenty of sunny days, boasting a remarkable maximum of 29°C while maintaining a pleasant humidity of 50%. Unlike the heavier rains typical of the winter, September stands out with negligible precipitation, allowing for uninterrupted outdoor activities and explorations. This combination of mild weather and minimal rainfall makes September a delightful time to experience the vibrant coastal charm of Coquimbo. For an in-depth understanding of how Coquimbo's climate evolves throughout the year, visit Coquimbo Climate.