September Weather in Cartagena, Spain

Last updated: February 6, 2025

September in Cartagena, Spain showcases a delightful blend of warm temperatures and vibrant coastal charm. With maximum highs reaching 29°C (84°F) and an average of 24°C (76°F), the weather is perfect for sun-soaked adventures. The nights cool down pleasantly to a minimum of 19°C (66°F), allowing for comfortable evenings. While the month experiences 49 mm (1.9 in) of precipitation over just 4 days, the humidity levels hover around 70%, providing a hint of tropical allure. This combination of warmth and occasional rain transforms Cartagena into a captivating destination for travelers seeking both relaxation and exploration.

September Temperature in Cartagena

In September, Cartagena, Spain, begins to transition from the warm embrace of summer to the cooler caress of fall. With minimum temperatures around 19°C (66°F) and a pleasant average of 24°C (76°F), the weather is still ideal for outdoor activities and exploring the beautiful coastline. Daytime highs can reach a comfortable 29°C (84°F), maintaining the vibrancy of summer while gently hinting at the approaching autumn. As the month progresses, you'll notice a gradual dip in temperatures, marking the end of the hottest season, but September remains a prime time to enjoy the Spanish sun before it sets for the year.

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

The chart illustrates September temperature patterns in Cartagena, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec565758606571767875706359
Data source: Temperature data for Cartagena 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 Cartagena

September in Cartagena, Spain, marks a shift as the summer heat begins to wane, bringing increased precipitation compared to the preceding months. With 49 mm (1.9 in) of rain over approximately 4 days, September sees a notable spike in wet conditions, making it one of the rainier months of the year. This uptick stands in contrast to the virtually dry spells of July, which recorded no rainfall, and August, which received only a modest amount. The transition reflects a broader trend as Cartagena moves towards the cooler, wetter autumn months, setting the stage for a diverse climate that revitalizes the landscape and prepares it for the seasonal shifts ahead.

September Precipitation Trends in Cartagena

The chart displays monthly precipitation patterns in Cartagena, 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.
JanFebMarAprMayJunJulAugSepOctNovDec489444418911049324320
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Cartagena

In September, Cartagena welcomes a humidity level of 70%, marking a slight uptick from the drier summer months of May and June, which recorded 64% and 65% respectively. As the region transitions into autumn, the humidity begins to stabilize, reflecting the trends seen in earlier months such as July and August with 71% and 69%. This gradual increase hints at the approaching wet season, as humidity levels rise further in October to 74%. Overall, September serves as a subtle bridge, where the lingering warmth of summer merges into the more humid and moist atmosphere that characterizes the fall months.

September Average Humidity in Cartagena

This chart illustrates the average monthly humidity levels in Cartagena, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec72%71%69%66%64%65%71%69%70%74%72%74%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Cartagena

In September, Cartagena experiences a UV Index of 8, categorizing it as very high, with a burn time of just 15 minutes for unprotected skin. This marks a slight decrease from the extreme levels seen in the preceding months of June and July, where the index peaked at 11. Despite this reduction, the risk remains significant, emphasizing the need for sun protection when enjoying the sunshine. As summer transitions to autumn, the UV levels begin to taper off, yet still warrant caution. For more detailed information on UV exposure throughout the year, visit Cartagena UV Index.

Maximum UV Index Levels in Cartagena for September

The chart shows the monthly maximum UV Index (UVI) for Cartagena 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.
JanFebMarAprMayJunJulAugSepOctNovDec356810111198743
Data source: Cartagena 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 Cartagena

As summer fades, September in Cartagena still basks in a generous 340 hours of sunshine, marking it as a delightful transition month. Following the peak of July with its 415 hours, the sun shines vibrantly, offering a warm embrace while gradually easing into autumn. This month is a beautiful bridge, retaining the richness of summer as daylight begins to wane, evidenced by its substantial sun hours compared to the chillier months ahead. With the preceding August bringing 389 hours, September maintains a comforting glow, making it an ideal time for visitors to enjoy the city's stunning beaches and vibrant culture before the sun takes its well-deserved rest.

Monthly Sunshine Duration in Cartagena: September Highlighted

The September sunshine duration represents the total number of hours Cartagena 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.
JanFebMarAprMayJunJulAugSepOctNovDec222h277h332h347h404h405h415h389h340h323h278h272h
Data source: Cartagena September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Cartagena During September

September in Cartagena, Spain, offers a healthy 59% chance of sunny weather, making it one of the more pleasant months to visit. Following the peak of summer, where July boasts an impressive 85% likelihood of sunshine, this month provides a delightful transition as temperatures begin to cool slightly. While it may not be as sun-drenched as the height of summer, September's sunshine chances are still relatively high compared to the earlier months of the year, such as April with only 41%. As a result, visitors can expect a mix of warm days and the lingering charm of summer, perfect for exploring the city’s historic treasures and enjoying its beautiful beaches.

Percentage of Sunny Days in September in Cartagena

The chart illustrates the percentage of sunny days in Cartagena 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 Cartagena experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec58%46%56%41%58%69%85%73%59%48%63%55%
Data source: Cartagena September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Cartagena in September

As summer transitions to autumn in September, the daylight in Cartagena, Spain begins to wane, offering approximately 12 hours of sunlight each day. This marks a gentle decline from the peak of 14 hours in the vibrant summer months of June and July. Following this delightful stretch, September’s warm rays still illuminate the city beautifully, though the shift towards shorter days becomes evident. The month captures a perfect balance, as daylight gradually fades, creating ideal conditions for enjoying sunsets while embracing the cooler temperatures that hint at the approaching fall. The rhythm of daylight here not only reflects seasonal changes but also invites both locals and visitors to experience the unique charm of Cartagena in this transitional period.

Average Daylight Hours in Cartagena for September

The chart illustrates the variation in daylight duration in Cartagena throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 52m10h 47m11h 58m13h 11m14h 11m14h 42m14h 26m13h 32m12h 22m11h 10m10h 8m9h 35m
Data source: Cartagena daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Cartagena

As summer transitions into autumn, September in Cartagena greets visitors with a gentle breeze averaging 4.7 m/s (10 mph). This slight uptick from the summer lows of July and August reflects a gradual increase in wind speed as the season begins to shift. While the winds are softer compared to the earlier months of the year, September still offers refreshing relief from the residual summer heat. The consistent coastal breezes not only create a pleasant atmosphere for outdoor activities but also herald the arrival of crisper autumn days. As the wind speed begins to level off in October, the idyllic weather in September becomes a perfect backdrop for exploring the beauty of Cartagena.

Average September Wind Speed in Cartagena

The chart displays monthly wind speed patterns in Cartagena, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.85.76.05.55.14.74.24.64.7 m/s4.65.55.2
Data source: Cartagena September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Cartagena Compares to Other Months

The weather in Cartagena changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Cartagena and find detailed weather information for every month.

September and January present quite contrasting weather patterns. In September, temperatures are comfortably warm, with average daily highs reaching 29°C (84°F) and an average temperature of 24°C (76°F). The month experiences about 49 mm of precipitation over four days, coupled with a humidity level of 70%. In stark contrast, January sees significantly cooler conditions, with average highs of only 18°C (65°F) and a much lower average temperature of 13°C (56°F). Precipitation remains similar at 48 mm over just three days, and humidity slightly increases to 72%. For more details, check out Cartagena weather in January.

September and February present notably different weather patterns. In September, temperatures range from a comfortable 19°C (66°F) to a warm 29°C (84°F), with an average of 24°C (76°F) and humidity levels at 70%. This month experiences more precipitation, averaging 49 mm (1.9 in) over four days. In contrast, February features much cooler temperatures, with a minimum of 8°C (46°F) and a maximum of 18°C (65°F), leading to an average of just 14°C (57°F). This cooler month sees significantly less rainfall, with only 9 mm (0.4 in) recorded over two days, while maintaining a similar humidity level of 71%. For more details on the weather in February, you can visit this link: Cartagena weather in February.

In September, the weather typically features milder temperatures, with a minimum of 19°C (66°F), an average of 24°C (76°F), and a maximum reaching 29°C (84°F). This month also has higher humidity at 70% and sees about 49 mm (1.9 in) of precipitation over 4 days. In contrast, March offers cooler conditions, with temperatures dipping to a minimum of 8°C (47°F) and peaking at 20°C (69°F), with an average of 14°C (58°F). Despite slightly lower precipitation at 44 mm (1.7 in) over 6 days, the humidity remains relatively comparable at 69%. For more details on weather specifics in March, check out Cartagena weather in March.

September and April present quite contrasting weather conditions. In September, temperatures are generally warmer, with minimums around 19°C (66°F) and maximums reaching up to 29°C (84°F), offering an average of 24°C (76°F). The humidity is relatively high at 70%, and although it experiences about 49 mm (1.9 in) of rainfall over four days, the overall atmosphere remains quite summery. In contrast, April enjoys a milder climate, with minimum temperatures of 9°C (49°F) and maximums of 20°C (68°F), averaging at 15°C (60°F). The precipitation is slightly less at 44 mm (1.7 in) but occurs over a similar number of days, emphasizing the transition to spring. Furthermore, the humidity is a bit lower at 66%. For more insights, check out Cartagena weather in April.

In comparing the weather of September and May, we see distinct differences. September boasts warmer temperatures, with a minimum of 19°C (66°F), an average of 24°C (76°F), and a maximum of 29°C (84°F), while May's temperatures are milder, with a minimum of 14°C (57°F), average of 18°C (66°F), and a maximum of 24°C (75°F). Additionally, September experiences higher precipitation, averaging 49 mm (1.9 in) over 4 days, compared to May’s lighter rains of just 18 mm (0.7 in) over 2 days. Humidity levels are also higher in September at 70%, compared to 64% in May. For more detailed information about the weather in May, you can visit Cartagena weather in May.

When comparing the weather in September to that in June, both months showcase mild temperatures with maximums reaching up to 29°C (84°F). However, September tends to be slightly warmer, featuring an average temperature of 24°C (76°F) compared to June's 22°C (71°F). Additionally, September experiences more precipitation, with about 49 mm (1.9 in) spread over four days, while June is much drier, recording only 9 mm (0.4 in) over two days. The humidity is also a bit higher in September at 70%, compared to June's 65%. For more detailed insights on June weather, check out Cartagena weather in June.

In comparing the weather between July and September, both months exhibit similar average temperatures, around 24°C (76°F), though July tends to be slightly warmer with a maximum of 30°C (87°F) compared to September's high of 29°C (84°F). The notable difference lies in the precipitation; July experiences almost no rainfall with just 1 mm recorded over the month, while September sees a more significant amount, with 49 mm and precipitation on 4 days. Additionally, humidity levels remain relatively consistent, hovering around 70-71%. For more details on July weather specifics, check out Cartagena weather in July.

In comparing the weather of September and August, September tends to be slightly cooler with average temperatures ranging from a minimum of 19°C (66°F) to a maximum of 29°C (84°F), while August experiences warmer conditions with temperatures from 21°C (70°F) to 30°C (87°F). Additionally, September sees more precipitation, with 49 mm (1.9 in) recorded over four days, compared to August's much drier climate, which only registers 10 mm (0.4 in) over one day. The humidity remains relatively consistent between the two months, averaging 70% in September and 69% in August. For a more detailed look at August weather, visit Cartagena weather in August.

September weather tends to be warmer, with average temperatures around 24°C (76°F) and maximums reaching 29°C (84°F), compared to October's cooler average of 21°C (70°F) and maximums of 26°C (79°F). While September experiences more rainfall with about 49 mm (1.9 in) over 4 days, October sees reduced precipitation at 32 mm (1.3 in) over just 3 days. Additionally, October has slightly higher humidity at 74%, compared to September's 70%. For more details, you can check Cartagena weather in October.

September weather is generally warmer compared to November, with average temperatures ranging from a minimum of 19°C (66°F) to a maximum of 29°C (84°F). In contrast, November sees lower temperatures, averaging between a minimum of 11°C (52°F) and a maximum of 23°C (75°F). While September experiences slightly more precipitation at 49 mm (1.9 in) over 4 days, November is close behind with 43 mm (1.7 in) over 6 days. Both months maintain similar humidity levels, with September at 70% and November slightly higher at 72%. For more details on the weather in November, check out Cartagena weather in November.

In September, temperatures in Cartagena are generally warmer, with a minimum of 19°C (66°F) and an average of 24°C (76°F), peaking at 29°C (84°F). The month sees some rainfall, with an average of 49 mm (1.9 in) spread over 4 days, accompanied by a humidity level of 70%. In contrast, December brings cooler weather, with temperatures dropping to a minimum of 9°C (48°F) and averaging 15°C (59°F), reaching a maximum of 19°C (66°F). Precipitation is lighter in December, totaling about 20 mm (0.8 in) over just 2 days, while humidity rises slightly to 74%. For a more detailed outlook on December weather, you can check Cartagena weather in December.

Compare Cartagena's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Cartagena

As summer begins to fade, September in Cartagena offers a delightful transition into milder conditions. With pleasant temperatures that average around 24°C (76°F), this month feels notably more comfortable compared to the sweltering heights of July and August. While rainfall increases slightly, bringing about 49 mm across just a few days, the overall humidity remains at a manageable 70%. This gentle shift creates an inviting atmosphere perfect for exploring the city's rich history and beautiful coastlines. For more insights on how September's weather shapes your visit, check out Cartagena Climate.