September Weather in Tacna, Peru

Last updated: August 27, 2025

Experience Tacna, Peru in September, where the weather presents a captivating blend of mild temperatures and refreshing conditions. With a maximum temperature reaching 25°C (77°F) and an average of 16°C (62°F), the days are pleasantly warm, while the nights can dip to a cool 11°C (52°F). This month brings a touch of moisture, with 16 mm (0.6 in) of rain falling over just 1 day, perfect for revitalizing the landscape. The air feels comfortably humid at 83%, creating an atmosphere that invites exploration and enjoyment of this vibrant region.

September Temperature in Tacna

In September, Tacna, Peru experiences a mild transition as winter gives way to the warmer spring months. With minimum temperatures lingering at around 11°C (52°F) and daytime highs reaching 25°C (77°F), the pleasant average of 16°C (62°F) makes it an ideal time for outdoor explorations. Notably, temperatures begin to rise slightly compared to the cooler months of July and August, signaling the arrival of more inviting weather. This month embraces some warmth without the sweltering heat of summer, offering comfortable conditions that are perfect for enjoying the region's rich culture and stunning landscapes.

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

The chart illustrates September temperature patterns in Tacna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tacna, 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).
JanFebMarAprMayJunJulAugSepOctNovDec696968666462616162636567
Data source: Temperature data for Tacna 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 Tacna

In Tacna, Peru, September marks a subtle shift in precipitation patterns, with rainfall reaching 16 mm (0.6 in) across just one day of the month. This slight uptick follows the drier months of June through August, where the total precipitation barely surpassed 19 mm. As the year transitions into the latter months, September’s rainfall remains modest yet consistent with the overall trend of decreasing precipitation observed from January through April. This pattern foreshadows the approaching dry season, as Tacna heads into October, which expects even less rain, indicating a climatic rhythm that shapes this arid landscape.

September Precipitation Trends in Tacna

The chart displays monthly precipitation patterns in Tacna, 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 Tacna, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec493521617191917169611
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Tacna

In Tacna, Peru, the month of September marks a slight rebound in humidity levels, reaching 83%, after a gradual decline from the peak of 90% experienced during the earlier months of the year. As summer transitions into the cooler season, the humidity shows a decreasing trend from January through August, with August recording the lowest at 82%. However, September's humidity indicates a subtle increase compared to the previous months, suggesting a blend of lingering warmth and approaching changes in weather patterns. This month's humidity escapes the extremes, offering a comfortable atmosphere that continues to set the stage for the wetter months ahead.

September Average Humidity in Tacna

This chart illustrates the average monthly humidity levels in Tacna, 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 Tacna is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%90%90%88%86%83%82%83%87%87%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Tacna

In September, Tacna, Peru experiences a UV Index of 13, placing it in the extreme exposure category with a burn time of just 10 minutes. This marks a slight increase from the previous month’s UV Index of 11, highlighting the region’s trend of higher UV levels as it transitions towards the end of the year, where indices soar to 16 in November and December. The consistent pattern of extreme UV exposure seen from August through November emphasizes the importance of sun safety during this period. As you prepare for outdoor activities, be sure to check the Tacna UV Index for current conditions and protect your skin against potential harm.

Maximum UV Index Levels in Tacna for September

The chart shows the monthly maximum UV Index (UVI) for Tacna 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 Tacna typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1616141210891113151616
Data source: Tacna 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 Tacna

September in Tacna, Peru, shines with a remarkable 346 hours of sunshine, marking a delightful end to winter and an optimistic transition into spring. The trend of increasing daylight hours is palpable as the city experiences its sunniest month yet, just shy of October's peak. With a steady rise from 302 hours in February to September's generous glow, residents and visitors alike can bask in the warm embrace of sunshine. This gradual accumulation not only brightens the landscape but also invigorates outdoor activities, making September an inviting time to explore the vibrant culture and stunning scenery of Tacna.

Monthly Sunshine Duration in Tacna: September Highlighted

The September sunshine duration represents the total number of hours Tacna 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.
JanFebMarAprMayJunJulAugSepOctNovDec277h302h334h328h333h315h332h342h346h368h364h365h
Data source: Tacna September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Tacna During September

In Tacna, Peru, September offers a notable shift in the likelihood of sunny weather, presenting a 43% chance of sunshine. This marks a slight decrease from the previous months of July and August, which boast higher probabilities of clear skies at 53% and 50%, respectively. However, as the year progresses into October, the sunshine chances rebound to a striking 56%. This trend suggests that while September may see some cloud cover, it still maintains a favorable outlook for those seeking sunlit days, setting the stage for a bright October ahead. Overall, Tacna residents and visitors can anticipate a pleasant mix of sunshine during this transitional month.

Percentage of Sunny Days in September in Tacna

The chart illustrates the percentage of sunny days in Tacna 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 Tacna experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec30%32%27%42%41%40%53%50%43%56%31%16%
Data source: Tacna September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Tacna in September

In September, Tacna, Peru enjoys 11 hours of daylight, mirroring the consistent daylight patterns observed throughout the winter months from June to August. This relatively stable duration hints at a transition from the shorter days of winter toward the longer days of spring. As the days grow longer, Tacna will soon experience an increase in daylight, with October welcoming back 12 hours of sunshine. This rhythmic cycle demonstrates the region's moderate climate, where daylight duration remains fairly constant before embracing more vibrant days as the year progresses.

Average Daylight Hours in Tacna for September

The chart illustrates the variation in daylight duration in Tacna throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 3m12h 39m12h 9m11h 39m11h 14m11h 3m11h 9m11h 30m11h 59m12h 30m12h 57m13h 10m
Data source: Tacna daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Tacna

As September arrives in Tacna, Peru, the wind begins to shift subtly, bringing a refreshing change to the air. With an average wind speed of 2.0 m/s (5 mph), this month marks a gentle uptick from the calmer summer months, which experienced their lowest winds in July at 1.8 m/s (4 mph). This slight rise harmonizes with the annual wind pattern, suggesting a transition towards more breezy days as spring approaches. Following September, the wind speeds rise again in October and November, consistently reaching 2.2 m/s (5 mph), indicating a return to the invigorating gusts characteristic of Tacna's vibrant climate. As the seasons change, September offers a taste of what lies ahead, balancing tranquility with a hint of invigorating freshness.

Average September Wind Speed in Tacna

The chart displays monthly wind speed patterns in Tacna, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.32.22.12.11.91.91.81.92.0 m/s2.22.22.3
Data source: Tacna September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Tacna Compares to Other Months

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

In September, Tacna experiences mild temperatures, with a minimum of 11°C (52°F) and an average of 16°C (62°F), reaching a maximum of 25°C (77°F). The month is relatively dry, with only 16 mm (0.6 in) of precipitation over just one day and a humidity level of 83%. In contrast, January brings warmer conditions, with minimum temperatures at 15°C (59°F), an average of 20°C (69°F), and a maximum of 27°C (81°F). However, it is also wetter, with 48 mm (1.9 in) of rainfall spread over 11 days and slightly higher humidity at 89%. For more specific information about weather during this time, you can visit Tacna weather in January.

In September, the weather typically features milder temperatures, with a minimum of 11°C (52°F) and an average around 16°C (62°F), reaching a maximum of 25°C (77°F). The month experiences relatively low precipitation, averaging just 16 mm (0.6 in) over only one day, and the humidity sits at 83%. In contrast, February sees warmer conditions, with temperatures ranging from a minimum of 15°C (58°F) to an average of 21°C (70°F) and highs reaching 28°C (82°F). However, it is also wetter, with 35 mm (1.4 in) of rainfall spread over about 10 days and humidity increasing slightly to 90%. For more details on February weather, you can visit Tacna weather in February.

September and March display notable differences in weather patterns. In September, the average temperature ranges from a minimum of 11°C (52°F) to a maximum of 25°C (77°F), with relatively low precipitation of only 16 mm (0.6 in) over just one rainy day. The humidity is also moderate at 83%. In contrast, March sees slightly warmer conditions, with temperatures varying from a minimum of 14°C (58°F) to a maximum of 27°C (82°F). This month is wetter, experiencing 21 mm (0.8 in) of rain across six days, and the humidity increases to 90%. For more detailed information, you can check the Tacna weather in March.

When comparing the weather in September and April, we can observe some notable differences. In September, temperatures range from a minimum of 11°C (52°F) to a maximum of 25°C (77°F), with an average of 16°C (62°F). The month experiences relatively low precipitation, with only 16 mm (0.6 in) falling over just one day, and humidity levels at 83%. In contrast, April sees a slightly warmer range, with minimum temperatures of 14°C (57°F) and maximums reaching 26°C (79°F), averaging at 19°C (67°F). It also boasts drier conditions, receiving just 6 mm (0.2 in) of rain over zero days, although humidity is a bit higher at 90%. For more details about the weather in Tacna during April, you can check Tacna weather in April.

September and May present a subtle contrast in weather patterns. In September, temperatures range from a minimum of 11°C (52°F) to a maximum of 25°C (77°F), with an average of 16°C (62°F). The month sees relatively low precipitation at 16 mm (0.6 in), accompanied by a humidity level of 83%. In comparison, May experiences slightly warmer temperatures, with a minimum of 13°C (55°F) and a maximum of 26°C (78°F), averaging around 18°C (65°F). Precipitation remains comparable at 17 mm (0.7 in), and humidity is a bit higher at 88%. Overall, while both months have their charm, May tends to be warmer and slightly more humid. For more detailed insights, check out Tacna weather in May.

In comparing the weather of September and June, we observe that both months experience similar minimum temperatures, averaging around 11°C (52°F). However, June is slightly warmer on average, with temperatures reaching up to 24°C (75°F), compared to a maximum of 25°C (77°F) in September. Precipitation levels are fairly close, with June receiving 19 mm (0.7 in) over 2 days, while September sees just 16 mm (0.6 in) with only 1 day of rain. Humidity levels are also comparable, with June at 86% and September at 83%, making both months relatively humid. For a detailed overview, you can check out Tacna weather in June.

When comparing the weather in September and July, we find some interesting similarities and differences. Both months have a minimum temperature of 11°C (52°F) and an average temperature around 16°C (61°F), making them relatively cool. However, July typically experiences slightly warmer maximum temperatures, reaching up to 28°C (83°F) compared to September's maximum of 25°C (77°F). Precipitation is marginally higher in July, with 19 mm (0.7 in) over 2 days, while September sees only 16 mm (0.6 in) over a single day, indicating a drier month. Humidity remains consistent at 83% for both months. For a detailed look at July weather, you can visit Tacna weather in July.

In comparing the weather between September and August, both months feature similar temperature ranges, with September experiencing a maximum of 25°C (77°F) compared to August's 24°C (75°F). The minimum temperatures remain identical at 11°C (52°F), while the average temperature holds steady at 16°C (62°F) for both months. When it comes to precipitation, September sees slightly less rain with only 16 mm (0.6 in) over 1 day, while August receives 17 mm (0.7 in), also over 1 day. Humidity levels are comparable, with September at 83% and August at 82%. For more detailed information, you can check Tacna weather in August.

September and October share similar weather patterns, but October tends to be slightly warmer and drier. In September, temperatures range from a minimum of 11°C (52°F) to a maximum of 25°C (77°F), with an average temperature of 16°C (62°F) and a notable 16 mm (0.6 in) of precipitation over just one day. In contrast, October sees a minimal rise in temperature, with lows of 12°C (54°F), highs of 26°C (78°F), and a comfortable average of 17°C (64°F), while experiencing only 9 mm (0.4 in) of rain over the course of the month and enjoying no rainy days at all. Humidity is a bit higher in October at 87%, compared to 83% in September. For more detailed insights, check out Tacna weather in October.

In September, the weather features a minimum temperature of 11°C (52°F) and an average of 16°C (62°F), peaking at a maximum of 25°C (77°F). This month experiences slight precipitation, totaling 16 mm (0.6 in) over just one day, and humidity levels reach 83%. In contrast, November brings slightly milder temperatures, with a minimum of 12°C (54°F), an average of 18°C (65°F), and a maximum of 26°C (79°F). This month enjoys much drier conditions, with only 6 mm (0.2 in) of precipitation over no rainy days and a humidity level of 87%. For more information on the weather in November, visit Tacna weather in November.

September and December in Tacna exhibit relatively mild temperatures, with December slightly warmer overall. In September, temperatures range from a minimum of 11°C (52°F) to a maximum of 25°C (77°F), while December sees a range from 13°C (56°F) to 27°C (81°F). Precipitation is light in both months, with September experiencing just 16 mm (0.6 in) over 1 day, compared to December's 11 mm (0.4 in) over 3 days. Humidity levels remain similar, with September at 83% and December slightly higher at 85%. For more detailed insights, check out Tacna weather in December.

Compare Tacna's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Tacna

As September approaches in Tacna, you’ll notice a refreshing shift in the weather compared to the drier winter months. With temperatures transitioning into a more mild range, the average settles around a comfortable 16°C (62°F), while enjoying fewer precipitation days, marked by just a hint of rainfall totaling 16 mm (0.6 in). This month also boasts higher humidity levels at 83%, adding a touch of moisture to the otherwise dry ambience, creating a pleasant atmosphere ideal for outdoor activities. For a more comprehensive overview of what to expect throughout the year, check out Tacna Climate.