Last updated: August 21, 2025
In Punta Arenas, Chile, September ushers in the arrival of spring with a mix of brisk temperatures and notable precipitation. On average, daily temperatures hover around 4°C (40°F), with highs reaching up to 12°C (54°F) and lows dipping to -2°C (29°F). This month experiences significant rainfall, accumulating to 61 mm (2.4 in) over 16 days, contributing to an overall humidity level of 87%. Visitors can expect a dynamic weather pattern, making September an ideal time to enjoy the unique beauty of this southernmost city as it transitions into the warmer months.
In September, Punta Arenas, Chile, begins to shed the chill of winter, with temperatures slowly on the rise. The month sees a minimum of -2°C (29°F) and an average temperature of 4°C (40°F), making it a transitional period as the region gears up for spring. While highs reach a modest 12°C (54°F), this represents a noticeable shift from the frigid temperatures experienced in the previous months. As summer approaches, the gradual warming trend becomes evident, hinting at longer days and the vibrant renewal of the landscapes characteristic of this southernmost city. September in Punta Arenas marks not just a change in temperature, but also a herald of the lively season to come.
As September arrives in Punta Arenas, Chile, the city experiences a moderate dip in precipitation, with 61 mm (2.4 in) of rain falling over 16 days. This marks a contrast to the wetter months that precede it, particularly April, which sees the highest rainfall at 101 mm (4.0 in), and March, which closely follows with 98 mm (3.8 in). The trend in September suggests a gradual transition into spring, as temperatures begin to rise and the frequency of rainy days remains fairly consistent with the previous month. Looking ahead, October ushers in a slight increase in rainfall to 83 mm (3.3 in), hinting at a season characterized by variability and a blend of refreshing showers. Overall, September serves as a bridge between the colder winter months and the forthcoming warmth of spring, reaffirming Punta Arenas' climate as dynamic and ever-changing.
In September, Punta Arenas experiences a notable shift in humidity, settling at 87%. This level signifies a slight decrease from the peak of 92% seen in the winter months of June and July. The trend suggests that as spring approaches, the air begins to lose some of its moisture, yet the humidity remains relatively high compared to earlier months. Following September, humidity continues to gradually decline, reaching 86% in October and further decreasing throughout the spring. This consistent high humidity, particularly during the winter months, is a hallmark of the region's climate, hinting at the interplay between oceanic influences and seasonal changes.
As September arrives in Punta Arenas, Chile, the UV Index begins a gradual ascent, reflecting the transition to longer, sunnier days. This month, the UV Index reaches 4, falling under the moderate exposure category, with a notable burn time of 30 minutes. This increase follows the low values of winter months, where the UV Index remained at 1 for a couple of months, and marks a shift from the previous 3 in August. As temperatures rise and daylight extends, it’s essential to be mindful of sun exposure. Those eager to enjoy the outdoors should remember to take precautions, particularly as the UV Index is set to climb even higher in the coming months. For a deeper dive into the UV Index trends and details, visit Punta Arenas UV Index.
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As September rolls around in Punta Arenas, Chile, the city basks in a delightful 169 hours of sunshine, marking a pleasant transition as spring begins to unfold. This month signifies a shift from the cooler winter days, as the hours of sunlight gradually increase from the previous month. Following a pattern of rising daylight, September's sunny embrace sets the stage for an impressive peak in October and November, where sunshine expands dramatically to 208 and 240 hours, respectively. This seasonal upward trend not only heralds warmer weather but also invites outdoor adventures and vibrant flora, making Punta Arenas a captivating destination for both locals and travelers alike.
In Punta Arenas, Chile, the likelihood of experiencing sunny weather in September hovers around 29%, making it a moderately bright month in comparison to the colder winter months. While January and February boast a modest 25% chance, September shows a slight increase, closely aligning with the sunnier conditions of August at 31%. This trend indicates a gradual transition towards clearer skies as spring approaches. After September, the chance of sunshine remains fairly steady, fluctuating between 28% and 30% through the latter months of the year. As such, visitors can anticipate an inviting mix of sun and clouds, setting the stage for the vivid landscapes of this captivating region.
As September rolls around in Punta Arenas, Chile, the days begin to lengthen once again, with a daylight duration of 11 hours. This marks a subtle yet significant increase from the 8 hours seen in May and June, heralding the arrival of spring in the Southern Hemisphere. In this transitional month, the lingering winter chill gives way to brighter skies, paving the way for the 12 hours of daylight will soon light up October. The gradual shift in daylight duration highlights a rhythmic pattern typical of the region, where winter's shorter days make way for the prolonged daylight that characterizes the warmer months, ultimately culminating in the summer months of January and February, where sunshine reigns supreme for up to 16 hours.
As September arrives in Punta Arenas, Chile, the wind begins to pick up, with average speeds reaching 5.7 m/s (13 mph). While this is a slight increase from the calmer months of mid-winter, it remains lower than the gusty conditions that will follow later in the year, especially in October when speeds rise to 7.5 m/s (17 mph). This transitional period reflects a gradual shift from the cool stillness of winter to the more spirited winds of spring. The overall trend shows a notable dip in wind intensity from January through June, followed by a rebound starting in July, illustrating nature's rhythmic dance as the seasons change. September serves as a breath of fresh air, bridging the quieter months and the blustery ones that lie just around the corner.
Weather in Punta Arenas varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Punta Arenas, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, Punta Arenas experiences cooler temperatures with a minimum of -2°C (29°F) and an average of 4°C (40°F), while January offers much milder conditions with a minimum of 3°C (38°F) and an average of 9°C (49°F). The maximum temperature in September reaches only 12°C (54°F), significantly lower than January’s warmer peak of 21°C (71°F). September also sees more precipitation, averaging 61 mm (2.4 in) over 16 days, compared to January’s 88 mm (3.5 in) over 20 days, albeit with slightly lower humidity levels of 87% in September versus 83% in January. For a detailed look at the conditions in January, visit Punta Arenas weather in January.
September and February present contrasting weather patterns in Punta Arenas. In September, temperatures are cooler, with a minimum of -2°C (29°F) and an average of 4°C (40°F), peaking at 12°C (54°F). The month experiences notable precipitation, totaling 61 mm (2.4 in) over 16 days, coupled with high humidity at 87%. In contrast, February sees milder temperatures, ranging from a minimum of 2°C (37°F) to a maximum of 24°C (75°F) with an average of 10°C (50°F). Precipitation slightly increases to 72 mm (2.8 in) across the same 16 days, while humidity remains relatively stable at 86%. For more detailed information, check out Punta Arenas weather in February.
When comparing the weather in September and March, a noticeable shift occurs in temperature and precipitation patterns. In September, temperatures range from a chilly minimum of -2°C (29°F) to a maximum of 12°C (54°F), with an average of 4°C (40°F). In contrast, March sees milder temperatures, with a minimum of 1°C (35°F) and a maximum of 18°C (65°F), averaging around 9°C (48°F). Additionally, March experiences more precipitation, totaling 98 mm (3.8 in) over 19 days, compared to September's 61 mm (2.4 in) over 16 days, while humidity remains consistently high at 87% for both months. For more detailed information, you can check this link: Punta Arenas weather in March.
September and April exhibit notable differences in weather, reflecting the transition between seasons. In September, temperatures range from a minimum of -2°C (29°F) to a maximum of 12°C (54°F), with an average of 4°C (40°F). The month sees about 61 mm (2.4 in) of precipitation over 16 days, accompanied by a high humidity of 87%. In contrast, April offers warmer conditions, with minimum temperatures also at -2°C (28°F) but rising to a maximum of 17°C (64°F) and an average of 6°C (44°F). Precipitation increases to 101 mm (4.0 in), although it still falls over the same number of days. The humidity remains similar at 89%, slightly higher than in September. For a detailed look at April weather specifics, you can check Punta Arenas weather in April.
When comparing the weather in September and May, we notice only slight variations in temperature and precipitation. September sees a minimum temperature of -2°C (29°F) and an average of 4°C (40°F), while May has a slightly colder minimum of -3°C (27°F) but an average just a degree higher at 5°C (41°F). Both months reach similar maximum temperatures of about 12°C (54°F in September and 55°F in May). Precipitation is more frequent in September, with 61 mm (2.4 in) over 16 days, compared to May's 70 mm (2.8 in) spread over 13 days. Humidity levels are also quite comparable, with September at 87% and May a touch higher at 90%. For a detailed look at May weather, check out Punta Arenas weather in May.
September and June present noticeably different weather conditions. In September, temperatures range from a minimum of -2°C (29°F) to a maximum of 12°C (54°F), with an average of 4°C (40°F), making it slightly warmer than June. In contrast, June experiences a lower temperature range, with minimums of -8°C (18°F) and maximums of 9°C (49°F), averaging 2°C (36°F). Precipitation levels are somewhat similar, with September receiving 61 mm (2.4 in) over 16 days and June slightly less at 55 mm (2.2 in) across 15 days. Humidity is also higher in June at 92%, compared to 87% in September, suggesting that June may feel even colder due to the dampness. For more detailed insights, you can explore Punta Arenas weather in June.
In comparing the weather of September and July, September generally offers slightly milder temperatures, with an average of 4°C (40°F) compared to July's average of 2°C (35°F). July experiences lower minimum temperatures, dipping down to -9°C (17°F) versus September's minimum of -2°C (29°F). Both months see significant precipitation, with September receiving 61 mm (2.4 in) over 16 days and July just slightly higher at 67 mm (2.6 in) across 15 days. Humidity levels are also notably high in both months, with September at 87% and July at 92%. For a more in-depth look at July weather, you can refer to Punta Arenas weather in July.
In September, the weather in Punta Arenas shows a slight improvement compared to August, with an average temperature rising to 4°C (40°F) and a maximum of 12°C (54°F), while in August, the average was 3°C (37°F) with a maximum of 11°C (52°F). Precipitation in September decreases slightly to 61 mm (2.4 in) over 16 days, compared to 81 mm (3.2 in) over 18 days in August. Humidity remains relatively high in both months, with September at 87% and August at 89%. For more detailed information, you can visit Punta Arenas weather in August.
September and October in Punta Arenas exhibit a subtle transition in weather patterns. September's temperatures range from a minimum of -2°C (29°F) to a maximum of 12°C (54°F), with an average of 4°C (40°F). In contrast, October warms slightly, with average temperatures rising to 6°C (42°F) and daytime highs reaching up to 14°C (58°F). Precipitation increases from 61 mm (2.4 in) over 16 days in September to 83 mm (3.3 in) across 19 days in October, while humidity remains relatively similar, at 87% in September compared to 86% in October. For more details on October's weather, you can refer to Punta Arenas weather in October.
September and November exhibit distinct weather patterns, reflecting the transition from early spring to late spring in Punta Arenas. In September, temperatures range from a chilly -2°C (29°F) at night to a mild 12°C (54°F) during the day, with an average of 4°C (40°F). This month sees 61 mm (2.4 in) of precipitation over 16 days and high humidity at 87%. In contrast, November brings warmer temperatures, with nighttime lows at 0°C (32°F) and daytime highs reaching up to 18°C (65°F), averaging around 8°C (46°F). Precipitation increases to 93 mm (3.7 in) across 18 days, while humidity slightly decreases to 84%. This comparison highlights a trend toward milder weather as spring progresses. For more detailed insights on weather conditions, you can check Punta Arenas weather in November.
The weather in September and December shows a notable shift in temperatures and precipitation patterns. September experiences cooler temperatures, with a minimum of -2°C (29°F) and an average of 4°C (40°F), while December sees milder conditions, with a minimum of 1°C (34°F) and an average of 9°C (49°F). Precipitation also increases from 61 mm (2.4 in) over 16 days in September to 104 mm (4.1 in) across 22 days in December, indicating a wetter end to the year. Despite December's higher humidity of 84%, it remains slightly lower than September's 87%, contributing to a more comfortable atmosphere during the latter month. For a detailed look at December weather, you can visit Punta Arenas weather in December.
As September unfolds in Punta Arenas, the transition from winter to spring becomes palpable, marked by milder temperatures compared to the preceding months. With a minimum dipping to -2°C and an average hovering around 4°C, the region begins to thaw and awaken from its chilly slumber. However, visitors should be prepared for frequent precipitation, as the month sees rain on 16 days, contributing to a relatively high humidity level of 87%. This blend of cool, damp weather sets September apart from the more stable conditions of the summer months, offering a unique glimpse into the evolving climate of this southernmost destination. For a deeper dive into the climate dynamics of Punta Arenas, check out Punta Arenas Climate.