Last updated: August 21, 2025
In September, Puerto Natales, Chile, experiences a cool maritime climate characterized by a maximum temperature of 14°C (58°F) and an average chill of 5°C (40°F), dipping to a brisk -5°C (24°F) at night. This month is marked by significant precipitation, with 119 mm (4.7 in) falling over 18 days, contributing to a notably humid atmosphere at 88%. These weather conditions create a unique backdrop of vibrant landscapes and lush greenery, making it a captivating time for visitors to explore the natural beauty of this stunning region.
September marks the transition into spring in Puerto Natales, Chile, as temperatures gradually begin to rise from the winter chill. The month presents a minimum temperature of -5°C (24°F), providing a hint of briskness, while the average settles at a crisp 5°C (40°F). With a maximum reaching 14°C (58°F), this month serves as a pleasant contrast to the harsh cold of the preceding winter months, where temperatures often dipped significantly lower. As September progresses, the city experiences a noticeable warming trend, paving the way for a more temperate climate in the upcoming months. This change invites visitors to explore the breathtaking surroundings, as the landscape begins to awaken from its wintry slumber.
In September, Puerto Natales begins to transition into the wetter months with 119 mm (4.7 in) of precipitation falling across 18 days. This slight uptick from the previous month aligns with the trend of increasing rainfall as the region approaches the peak of its rainy season. The consistent pattern of precipitation in the late winter and early spring months indicates that residents can expect frequent showers that will contribute to the lush greenery of the surrounding landscape. With only a slight increase from August's 118 mm, September marks a pivotal moment, signaling the onset of more extensive rainfall in the months ahead, particularly with October and November looming with notably heavier totals.
In September, Puerto Natales experiences a slight dip in humidity to 88%, marking a transitional phase as winter ebbs into spring. This month is characterized by a gradual decrease from the summer highs of January through August, where humidity levels hover around the upper 80s and into the low 90s. Notably, after peaking at 92% in July, the humidity levels begin their gentle decline, indicating a shift towards drier conditions as the region heads into October. Overall, while September maintains a relatively high humidity, it reflects the beginning of an easing trend that will continue in the months to come.
As September rolls into Puerto Natales, the UV Index stands at a moderate 4, signaling a shift from the higher indices seen in the summer months. With a burn time of 30 minutes, it's crucial for residents and visitors alike to be cautious under the spring sun. This month marks the transition towards increased sun exposure, as the UV Index had previously dropped to 2 in the winter months. The coming months will see a gradual rise in UV levels, peaking again in December at 11. For those looking to plan their outdoor activities, understanding the UV Index is essential to enjoy the beautiful landscapes safely. For more information, visit Puerto Natales UV Index.
UV Risk Categories
As September arrives in Puerto Natales, Chile, the vibrant landscape begins to bask in an impressive 221 hours of sunshine, marking a delightful transition into the spring season. This increase in sunlight compared to the lower totals in the preceding months of April (180 hours) and May (140 hours) signals a welcome return to brighter days, inspiring both locals and visitors to embrace outdoor adventures. As the sun continues to shine more generously, anticipation builds for the golden months ahead, with October and November boasting even more sunlight—280 hours and 292 hours respectively. This upward trend not only highlights the region's beautiful scenery but also invites exploration of its stunning fjords, mountains, and wildlife, because there's no better time to experience the natural wonders of this breathtaking corner of the world.
As September rolls into Puerto Natales, the likelihood of basking in sunny weather begins to brighten, with a 29% chance of sunshine. This slight uptick follows the chill of winter, reflecting the region's transition into spring. Interestingly, September shares this percentage with October, as both months offer a hopeful outlook for sun-seekers. The trend highlights a gradual increase from the winter months, where the chances hovered around 19% to 23% from May to August. With the arrival of spring, September marks a promising lead-up to summer, bringing a refreshing change that invites outdoor exploration and scenic adventures in this stunning part of Chile.
As September arrives in Puerto Natales, the days begin to lengthen once more, offering 11 hours of daylight. This increase marks a gradual shift from the winter months, where daylight dwindles to its lowest in June and July. Following the extended darkness of winter, September feels like a breath of fresh air, as daylight inches back, paving the way for the longer days of spring and summer. The trend is clear: with each passing month, daylight duration steadily climbs, reaching a peak of 16 hours in January and December. This rhythm of changing light not only influences the natural landscape but also enhances the serenity and beauty of Puerto Natales as it transitions into a vibrant season.
As September breezes into Puerto Natales, the wind whispers its transitional tales, marked by an average speed of 3.0 m/s (7 mph). While this shows a slight dip from the gustier month of August, it retains a sense of buoyancy that hints at the onset of spring. Interestingly, the winds in September are generally calmer compared to the earlier months in the year, reflecting a gentle shift towards the more vibrant breezes of October, which will reach an average of 4.9 m/s (11 mph). This gradual ebb and flow of wind speed paints a vivid picture of the region's dynamic climate, where nature continuously transitions from the tranquility of late winter's soft gusts to the invigorating whispers of approaching spring.
Weather in Puerto Natales varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Puerto Natales, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in September and January, significant differences emerge. September experiences cooler temperatures, with an average of 5°C (40°F) and maximums reaching just 14°C (58°F), while January boasts a warmer average of 11°C (52°F) and a max of 24°C (75°F). Precipitation levels are relatively close, with September recording 119 mm (4.7 in) over 18 days and January slightly higher at 133 mm (5.2 in) over 20 days. Additionally, humidity remains fairly constant, at 88% in September and 86% in January, creating a damp atmosphere in both months. To explore more about the climate during this warmer month, visit Puerto Natales weather in January.
In comparing the weather between September and February, there are notable differences. September typically sees cooler temperatures, with a minimum of -5°C (24°F) and an average of 5°C (40°F), while February enjoys milder conditions, ranging from a minimum of 2°C (36°F) to an average of 12°C (53°F) and even reaching a maximum of 27°C (81°F). Precipitation levels are relatively similar, with September receiving 119 mm (4.7 in) and February slightly less at 114 mm (4.5 in), both spread over 18 days. Humidity remains constant at 88% across both months. For a more detailed look at February weather, refer to Puerto Natales weather in February.
September and March present contrasting weather conditions in terms of temperature and overall climate. In September, temperatures range from a chilly -5°C (24°F) to a maximum of 14°C (58°F), with an average of 5°C (40°F). The month is quite wet, receiving 119 mm (4.7 in) of precipitation over 18 days, and humidity hovers at a high 88%. In comparison, March boasts milder temperatures, starting at a minimum of 0°C (33°F) and reaching up to 23°C (73°F), with an average of 10°C (50°F). Although March experiences slightly more precipitation at 132 mm (5.2 in) over 20 days, the humidity remains similar at 89%. For more detailed information, you can check Puerto Natales weather in March.
When comparing the weather in September and April, we notice some distinct differences. September sees temperatures ranging from a minimum of -5°C (24°F) to a maximum of 14°C (58°F), with an average temperature of 5°C (40°F). In contrast, April presents a slightly milder climate, with temperatures ranging from -3°C (27°F) to a maximum of 20°C (68°F) and an average of 7°C (45°F).
Precipitation levels also differ, as September experiences 119 mm (4.7 in) of rain over 18 days, while April's rainfall is higher at 172 mm (6.8 in) spread across 19 days. Both months boast high humidity levels, with September at 88% and April slightly higher at 89%. For more detailed information about the specific weather patterns in April, you can refer to Puerto Natales weather in April.
When comparing the weather in September and May, we can see several similarities and subtle differences. Both months experience temperatures ranging from a minimum of -5°C (24°F) to a maximum of 14°C (58°F), with September slightly edging out May in average temperature at 5°C (40°F), compared to May's average of 4°C (40°F). Rainfall is fairly consistent, with September receiving 119 mm (4.7 in) over 18 days and May slightly drier with 113 mm (4.4 in) over 17 days. Humidity levels in both months are similarly high, with September at 88% and May at 89%. For a more detailed look at May weather in Puerto Natales, you can visit Puerto Natales weather in May.
When comparing the weather in September and June, we can observe distinct differences in temperature and precipitation. In September, the minimum temperature is slightly warmer at -5°C (24°F), with an average of 5°C (40°F) and a maximum of 14°C (58°F). This month also experiences higher humidity at 88% and more precipitation, totaling 119 mm (4.7 in) over 18 days. In contrast, June is colder, with a minimum of -17°C (2°F), an average of 1°C (34°F), and a maximum of 10°C (51°F). June has a bit less precipitation at 102 mm (4.0 in) over 17 days, along with slightly higher humidity at 91%. This comparison highlights a transition towards milder conditions from June to September in Puerto Natales. For more detailed insights, you can refer to Puerto Natales weather in June.
When comparing the weather in September and July, notable differences emerge. September generally features milder temperatures, with a minimum of -5°C (24°F) and a maximum of 14°C (58°F), resulting in a more comfortable average of 5°C (40°F). In contrast, July sees colder conditions, with temperatures ranging from a minimum of -14°C (8°F) to a maximum of 10°C (50°F), leading to a much cooler average of 1°C (33°F). Precipitation levels are relatively similar, with September receiving 119 mm (4.7 in) and July 105 mm (4.1 in), both over 18 days. Despite their comparable precipitation, humidity levels are slightly higher in July at 92%, compared to September's 88%. For more detailed insights, you can check Puerto Natales weather in July.
In comparing the weather between September and August, we see some notable differences and similarities. September experiences slightly milder temperatures, with an average of 5°C (40°F), compared to August's average of 3°C (37°F). Both months have identical maximum temperatures at 14°C (58°F), but September has a higher minimum temperature of -5°C (24°F) compared to August's -7°C (19°F). Precipitation levels are close, with September recording 119 mm (4.7 in) over 18 days, while August has 118 mm (4.7 in) over 20 days. Humidity is slightly lower in September at 88%, compared to August's 89%. For more details about August weather, check Puerto Natales weather in August.
September and October exhibit notable differences in weather patterns, despite their close proximity on the calendar. September features a minimum temperature of -5°C (24°F) and an average of 5°C (40°F), with a maximum reaching 14°C (58°F). Additionally, it is marked by 119 mm (4.7 in) of precipitation over 18 days, while maintaining a high humidity level of 88%. In contrast, October sees slightly milder temperatures, with a minimum of -4°C (24°F), an average of 6°C (44°F), and a maximum of 17°C (62°F). However, October experiences increased precipitation at 156 mm (6.1 in) and rain on 21 days, but retains the same humidity level of 88%. For more detailed information, check Puerto Natales weather in October.
September and November present distinctly different weather patterns. In September, the temperatures are cooler, with a minimum of -5°C (24°F) and an average of 5°C (40°F), while November sees milder conditions with a minimum of 0°C (32°F) and an average of 9°C (48°F). Precipitation is relatively high in both months, but November experiences even more rainfall, with 161 mm (6.4 in) over 19 days compared to September's 119 mm (4.7 in) over 18 days. Both months share the same humidity level of 88%, creating a damp atmosphere. For a closer look at November weather specifics, you can explore Puerto Natales weather in November.
In September, temperatures in Puerto Natales typically range from a chilly minimum of -5°C (24°F) to a maximum of 14°C (58°F), with an average temperature around 5°C (40°F). The month sees notable precipitation, averaging 119 mm (4.7 in) over 18 days, coupled with high humidity at 88%. In contrast, December brings milder weather, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 20°C (68°F) and an average of 11°C (51°F). Although precipitation increases to 156 mm (6.1 in) across 22 days, the humidity remains slightly lower at 87%. For more details on December's weather, visit Puerto Natales weather in December.
As September unfolds in Puerto Natales, the transition from winter to spring brings a noticeable shift in weather patterns. While temperatures begin to climb, averaging around 5°C (40°F), the chilly nights can still dip as low as -5°C (24°F), reminding visitors of the region's brisk climate. With an average of 18 days of precipitation throughout the month, you're likely to encounter frequent showers, making September one of the wetter months. The high humidity at 88% adds to the cool atmosphere, differentiating it from the more stable temperatures and drier conditions typically experienced during the peak summer months. For more insights on how weather conditions evolve throughout the year, explore Puerto Natales Climate.