September Weather in Benfica, Portugal

Last updated: February 24, 2025

Experience the charm of Benfica, Portugal in September, where the warmth of summer lingers with a maximum temperature reaching 29°C (84°F) and a comfortable average of 20°C (68°F). While the days are predominantly sunny, the region sees a modest precipitation total of 27 mm (1.1 in) over just 2 days, allowing for lush landscapes. With humidity at 67%, the air feels pleasantly balmy, making it a perfect time to explore the area's vibrant culture and stunning surroundings.

September Temperature in Benfica

As summer fades, September in Benfica, Portugal brings a delightful transition characterized by pleasant temperatures. With minimums around 14°C (58°F) and highs reaching a comfortable 29°C (84°F), the month maintains an average of 20°C (68°F), making it an ideal time for outdoor activities. This period showcases a gradual descent from the peak summer heat, creating a mild climate that invites both locals and visitors to explore the city's rich history and vibrant culture. As daylight hours begin to shorten, the warmth of early fall settles in, offering a charming atmosphere that's perfect for enjoying leisurely strolls or savoring a meal al fresco under the softening sun.

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

The chart illustrates September temperature patterns in Benfica, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec535556586365686968655956
Data source: Temperature data for Benfica 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 Benfica

September marks a transitional month in Benfica, Portugal, with precipitation measuring 27 mm (1.1 in) across just two rainy days. This slight uptick in rainfall follows the notably dry summer months of July and August, emphasizing the region's seasonal shift. As temperatures begin to cool, September's rain sets the stage for the wetter months ahead, with more significant precipitation volumes expected in October and especially November. With rainfall gradually increasing, the landscape transforms from summer's parched charm to autumn's lush vividness, reflecting nature's dynamic rhythm in this vibrant locale.

September Precipitation Trends in Benfica

The chart displays monthly precipitation patterns in Benfica, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3753667336115327468062
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Benfica

In September, humidity levels in Benfica, Portugal begin to shift as summer transitions into autumn, with an average of 67%. This marks a slight uptick from the steady 60% seen in the peak summer months of July and August. As the year progresses, humidity levels gradually rise again, peaking at a substantial 85% by January and December. The autumn months of October and November continue this trend, showcasing an increasing moisture in the air that contrasts with the drier summer, making September a pivotal month in this seasonal transition.

September Average Humidity in Benfica

This chart illustrates the average monthly humidity levels in Benfica, 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.
JanFebMarAprMayJunJulAugSepOctNovDec85%75%72%70%70%63%60%60%68%74%83%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Benfica

September in Benfica, Portugal, sees a UV Index of 8, categorized as very high, which means the sun's rays can pose a significant risk for unprotected skin in just 15 minutes of exposure. This marks a slight decline from the peak summer months of June and July, which recorded the highest indices of 11 and 10 respectively. As the days grow shorter and the temperatures begin to dip, the UV levels gradually decrease, signaling a transition towards autumn. However, it remains essential to take precautions against sun exposure, as September's numbers still reflect a considerable risk. For more details on the UV Index throughout the year in Benfica, check out Benfica UV Index.

Maximum UV Index Levels in Benfica for September

The chart shows the monthly maximum UV Index (UVI) for Benfica 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.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Benfica 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 Benfica

September in Benfica, Portugal, continues the delightfully sunny trend of the summer months, boasting a commendable 350 hours of sunshine. This golden month sits gracefully between the peak summer glow of July, with a vibrant 423 hours, and the more muted light of October, which offers 314 hours. It captures the residue of summer's warmth, as the sun-drenched days encourage lingering outdoor activities and the transition into autumn. As days shorten and the sun's intensity wanes, September still promises plenty of sunlit moments, inviting residents and visitors alike to bask in its fading summer charm.

Monthly Sunshine Duration in Benfica: September Highlighted

The September sunshine duration represents the total number of hours Benfica 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.
JanFebMarAprMayJunJulAugSepOctNovDec182h229h307h354h407h411h423h396h350h314h233h222h
Data source: Benfica September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Benfica During September

In September, Benfica, Portugal experiences a 63% chance of sunny weather, making it one of the sunniest months of the year. This month marks a gentle transition into autumn, retaining much of the summer’s warmth and brightness. Notably, as the seasons change from the peak summer months of July (73%) and August (72%) to September, the likelihood of sunshine remains relatively high, showcasing a wonderful balance of lingering summer vibes while avoiding the intense heat. As the year progresses into October, the chance of sun dips to 54%, highlighting September as a prime time for enjoying outdoor activities under clear skies before the cooler months set in.

Percentage of Sunny Days in September in Benfica

The chart illustrates the percentage of sunny days in Benfica 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 Benfica experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec46%23%60%39%57%66%74%73%63%54%67%40%
Data source: Benfica September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Benfica in September

As summer wanes and September unfolds in Benfica, Portugal, the daylight duration begins its gentle descent, offering 12 hours of sunlight. This marks a transition from the peak brightness of the preceding months, where the days stretched to a glorious 14 hours in June, July, and August. The trend reflects a gradual decrease in daylight as autumn approaches, with sunlight dwindling in October to 11 hours and continuing the slow decline towards winter. This rhythmic change not only enhances the beauty of the landscape but also invites residents and visitors alike to savor the final warmth of the season, as the days become just a bit shorter and the evenings increasingly cozy.

Average Daylight Hours in Benfica for September

The chart illustrates the variation in daylight duration in Benfica throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 47m10h 44m11h 58m13h 13m14h 17m14h 48m14h 31m13h 35m12h 23m11h 8m10h 3m9h 29m
Data source: Benfica daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Benfica

As September arrives in Benfica, Portugal, the winds gracefully begin to soften, reflecting the transition from summer to autumn. The average wind speed dips to 4.2 m/s (9 mph), marking a noticeable decrease from the more robust breezes experienced during the summer months, particularly July's peak at 5.7 m/s (13 mph). This gentler wind sets a serene backdrop for early autumn, harmonizing with the mild temperatures and vibrant colors of the changing leaves. As the year progresses into October, wind speeds continue to hover around 4.0 m/s (9 mph), suggesting a trend towards calmness in the atmosphere. Thus, September in Benfica is characterized by a refreshing yet subdued breeze, perfect for leisurely strolls and enjoying the beauty of this picturesque locale.

Average September Wind Speed in Benfica

The chart displays monthly wind speed patterns in Benfica, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.95.14.33.65.55.55.75.24.2 m/s4.04.64.9
Data source: Benfica September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Benfica Compares to Other Months

The weather in Benfica 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 Benfica and find detailed weather information for every month.

In September, the weather is generally warmer with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 29°C (84°F), offering an average of 20°C (68°F). The month sees relatively low precipitation at 27 mm (1.1 in) over just 2 days and a moderate humidity level of 67%. In contrast, January experiences much cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 19°C (66°F), resulting in a chilly average of 12°C (53°F). Although January has a higher precipitation level of 37 mm (1.5 in) spread across 5 days, it also brings increased humidity at 85%. For more details on the weather specifics, you can check Benfica weather in January.

September and February present contrasting weather patterns. In September, temperatures range from a comfortable minimum of 14°C (58°F) to a warm maximum of 29°C (84°F), with an average of 20°C (68°F). The month sees relatively low precipitation, totaling 27 mm (1.1 in) over just 2 days, and the humidity averages around 67%. In stark contrast, February experiences cooler temperatures, with a minimum of 5°C (41°F), an average of 13°C (55°F), and a maximum of 21°C (70°F). This month is wetter, receiving 53 mm (2.1 in) of precipitation across 7 days, coupled with a higher humidity level of 75%. For more information on the weather in Benfica during February, visit Benfica weather in February.

When comparing the weather in September and March, it's evident that September tends to be warmer and drier. In September, temperatures range from a minimum of 14°C (58°F) to a maximum of 29°C (84°F), with an average temperature of 20°C (68°F) and only about 27 mm (1.1 in) of rainfall over just 2 days. In contrast, March experiences cooler temperatures, with a minimum of 7°C (45°F) and a maximum of 23°C (73°F), averaging 14°C (57°F). Additionally, March sees more precipitation at 66 mm (2.6 in) over 8 rainy days, leading to a higher humidity level of 72%. For a closer look at weather conditions in March, you can check out Benfica weather in March.

When comparing the weather in September and April, it's clear that September tends to be warmer, with average temperatures reaching 20°C (68°F) and highs of 29°C (84°F). In contrast, April has cooler temperatures, averaging 15°C (59°F) with a maximum of 24°C (75°F). Additionally, September experiences significantly less precipitation, averaging only 27 mm (1.1 in) over just 2 days, while April sees an increase, with 73 mm (2.9 in) of rainfall spread over 12 days. Humidity levels remain relatively similar, with September at 67% and April slightly higher at 70%. For a closer look at specific conditions, check out Benfica weather in April.

In September, temperatures are generally warmer, with minimums around 14°C (58°F) and average highs reaching 29°C (84°F), compared to May, which sees a slightly cooler minimum of 10°C (50°F) and an average high of 30°C (86°F). However, September experiences less rainfall, with only 27 mm (1.1 in) over 2 days, while May has a higher precipitation level of 36 mm (1.4 in) over 4 days. Both months have similar humidity levels, with September at 67% and May at 70%, reflecting the mild and pleasant conditions typical of spring and early autumn. For more information on the weather in May, check out Benfica weather in May.

In comparing the weather of September and June, we see some notable differences. September boasts a slightly warmer average temperature of 20°C (68°F), with maximum highs reaching 29°C (84°F), while June's average is a touch cooler at 18°C (66°F), peaking at 32°C (90°F). Despite June having a higher maximum temperature, it experiences less precipitation (11 mm or 0.4 in) compared to September's 27 mm (1.1 in), which occurs over fewer days (three in June versus two in September). Additionally, humidity levels are slightly higher in September at 67%, compared to June’s 63%. For more detailed insights, you can check out the link: Benfica weather in June.

In September, the weather features a minimum temperature of 14°C (58°F) and a maximum of 29°C (84°F), with an average temperature consistent at 20°C (68°F). The month experiences a slight increase in precipitation, totaling 27 mm (1.1 in) over two days, and the humidity is relatively higher at 67%. In contrast, July boasts slightly warmer temperatures, with a minimum of 15°C (59°F) and a maximum of 31°C (87°F), while maintaining the same average temperature of 20°C (68°F). July is notably drier, with only 5 mm (0.2 in) of precipitation and no rainy days, accompanied by lower humidity levels at 60%. For more details, check out Benfica weather in July.

In comparing the weather between August and September, August tends to be hotter with maximum temperatures reaching up to 35°C (95°F), while September sees a decrease in the maximum temperature to 29°C (84°F). The minimum temperatures in September are slightly cooler, starting at 14°C (58°F) compared to August's 16°C (61°F). Precipitation is notably higher in September, with 27 mm (1.1 in) recorded over two days, whereas August remained dry with only 3 mm (0.1 in) of rain over the entire month. Additionally, September has a higher humidity level at 67%, compared to August's 60%. For more details on the weather in August, visit Benfica weather in August.

In September, the weather is generally warmer with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 29°C (84°F), accompanied by relatively low precipitation of 27 mm (1.1 in) over just 2 days. In contrast, October brings slightly cooler temperatures, with averages falling to a minimum of 10°C (50°F) and a maximum of 28°C (82°F). However, October sees an increase in rainfall, totaling 46 mm (1.8 in) over 5 days, and a rise in humidity to 74%. For more detailed insights on the October weather, you can visit Benfica weather in October.

September generally offers warmer weather compared to November, with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 29°C (84°F). In contrast, November experiences cooler temperatures, with a minimum of 9°C (48°F) and a maximum of 23°C (73°F). Additionally, September sees less precipitation, totaling 27 mm over just 2 days, while November has significantly more rainfall at 80 mm over 11 days, contributing to higher humidity levels of 83%. For more detailed information, visit Benfica weather in November.

September typically offers warmer weather, with minimum temperatures around 14°C (58°F) and average highs reaching up to 29°C (84°F). In contrast, December brings a noticeable chill, with temperatures dropping to a minimum of 6°C (43°F) and average highs of 18°C (65°F). Additionally, September experiences less precipitation, averaging only 27 mm (1.1 in) across just 2 rainy days, while December sees increased rainfall with 62 mm (2.4 in) over 8 days and higher humidity at 85%. For a more detailed view of the December climate, you can check Benfica weather in December.

Compare Benfica's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Benfica

As September unfolds in Benfica, it brings a delightful transition into milder weather, clearly distinguishing itself from the sweltering heat of summer. With average temperatures hovering around 20°C (68°F), it’s a time when outdoor activities can be enjoyed without the oppressive heat. Rainfall is minimal, with just a couple of days seeing precipitation, which contributes to a pleasant atmosphere characterized by 67% humidity—comfortably refreshing. This month serves as a bridge between the summer's warmth and the cooler temperatures of autumn, making it an ideal time to explore the vibrant surroundings. For more insights into the climate throughout the year, visit Benfica Climate.