Last updated: February 24, 2025
September in Lagos, Portugal offers a delightful climate that beckons travelers to explore its stunning coastline. With a maximum temperature reaching 28°C (82°F), the weather remains warm and inviting, while the average temperature comfortably sits at 21°C (69°F). Visitors can relish in the refreshing mildness, as the minimum temperature rarely dips below 15°C (59°F) during the night. Notably, the month boasts almost zero precipitation, with only 6 mm (0.2 in) recorded, ensuring perfect conditions for sun-soaked beach days and outdoor adventures. Enjoy the gentle 71% humidity that accompanies the pleasant warmth, making Lagos an ideal destination for an unforgettable September getaway.
In September, Lagos, Portugal, bids farewell to summer with pleasant temperatures that reflect the season's gentle transition. The average temperature settles at a comfortable 21°C (69°F), making it an ideal time for outdoor activities. With minimums of 15°C (59°F) and maximums peaking at 28°C (82°F), the month offers warm days perfect for sunbathing along the stunning beaches, while evenings remain inviting for leisurely strolls. As temperatures gradually begin to cool down before autumn sets in, September ensures a delightful blend of warmth and mildness, enticing visitors to experience the charm of this coastal gem.
September in Lagos, Portugal brings a welcome reprieve from the dry summer months, with negligible rainfall recorded at just 6 mm (0.2 in), but notably, there are no precipitation days. This pattern underscores a significant shift from the preceding months of July and August, which saw zero rainfall. As the autumn season approaches, precipitation levels begin to gradually increase, setting the stage for a more temperate climate in October and beyond. This trend illustrates Lagos's transition from its arid summer, where clear skies dominate, into a period marked by a gradual reintroduction of moisture in the atmosphere, paving the way for milder, wetter weather in the following months.
As September rolls in, Lagos, Portugal experiences a slight uptick in humidity, with levels reaching around 71%. This marks a subtle recovery from the summer months, which saw humidity fluctuating between 67% and 69%. Following the heat of July and August, which typically bring a comfortable yet warm atmosphere, September begins the transition into the more humid autumn months. Looking ahead, the humidity steadily rises through October and November, hinting at the approaching winter season where it peaks at 81% in December. This trend clearly indicates a seasonal pattern, where humidity increases gradually from the summer's lows, setting the stage for a cozy, moisture-rich climate as the year concludes.
As summer fades, September in Lagos, Portugal, presents a UV Index of 9, placing it in the very high exposure category. This marks a slight decrease from the peak of June's extreme index of 11 but remains consistent with the high readings of the preceding months, such as July and August. With a burn time of just 15 minutes, it's crucial for residents and visitors alike to remain vigilant against sun exposure. As the sun’s intensity begins to wane in October, a UV Index drop to 7 is anticipated, signaling the transition into milder conditions. Always stay informed and protect your skin—check out the detailed info at Lagos UV Index.
UV Risk Categories
As summer gives way to autumn, September in Lagos, Portugal, remains a sun-kissed delight, boasting an impressive 351 hours of sunshine. This month, while slightly less radiant than July's peak of 421 hours, still offers an exuberant backdrop for outdoor explorations. The sunshine gradually diminishes from its summer heights, yet September stands out with more sunlight than the chilly autumn months that follow. Overall, the trend highlights a gradual decline from the sun-drenched summer, making September an ideal time to soak up the last rays of warmth before the cooler days arrive. Whether lounging on the beach or exploring charming coastal streets, this month offers a perfect blend of brilliant sunshine and mild temperatures, ensuring unforgettable experiences in this picturesque locale.
September in Lagos, Portugal, retains a favorable likelihood of sunny weather, with a 71% chance of sunshine. This marks a slight decline from the peak summer months of July and August, which enjoy astonishing probabilities of 86% and 83%, respectively. However, September still stands out as a robust choice for those seeking pleasant weather, as it transitions from summer's exuberance to autumn's charm. The chance of sunlight remains notably higher compared to the earlier months of the year, showcasing a reliable end-of-summer appeal that makes Lagos a delightful destination for sun-seekers.
As September rolls into Lagos, Portugal, the daylight hours begin to gently taper off from the vibrant summer months. With 12 hours of daylight, the transition from the sunny 14 hours enjoyed from May through August is evident, signaling the approach of autumn. This gradual decrease in daylight not only reflects the shifting seasons but also prompts a delightful change in the atmosphere, inviting longer evenings and a cooler climate. As the year progresses, daylight hours wane further, culminating in the refreshing chill of winter with just 9 hours in January and December. This rhythmic ebb and flow of daylight highlights the enchanting cycle of nature, shaping the experiences and activities of those who bask in the captivating beauty of Lagos.
As September arrives in Lagos, Portugal, the coastal breeze howls softly, bringing a notable dip in wind speed to 4.6 m/s (10 mph). Following the summer's higher gusts, where July and August peak at 6.6 m/s (15 mph) and 6.1 m/s (14 mph) respectively, this transition marks a gentle shift towards the more tranquil autumn months ahead. It's a time when the vibrant energy of summer gives way to serene afternoons, inviting visitors to stroll along the stunning coastline. While the wind may be lighter than in the earlier months, this subtle calm enhances the allure of Lagos, making it an ideal spot for reflection and relaxation in the warm September sun.
The weather in Lagos 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 Lagos and find detailed weather information for every month.
September and January present contrasting weather conditions. In September, temperatures are typically warmer, with minimums around 15°C (59°F) and maximums reaching up to 28°C (82°F), alongside relatively low precipitation at just 6 mm (0.2 in) over no rainfall days and humidity levels around 71%. In contrast, January experiences cooler temperatures, with a minimum of 6°C (43°F) and a maximum of 18°C (64°F). Additionally, January sees more precipitation, averaging 29 mm (1.1 in) over three days, and slightly higher humidity at 80%. For more details on the January climate, visit Lagos weather in January.
September weather typically showcases warmer temperatures, with a minimum of 15°C (59°F) and an average temperature of 21°C (69°F), reaching highs of 28°C (82°F). In contrast, February experiences cooler conditions, with a minimum of 7°C (45°F) and an average of 14°C (58°F), peaking at 19°C (67°F). While September is relatively dry with only 6 mm (0.2 in) of precipitation over zero rainy days, February sees a significant increase in rainfall, totaling 41 mm (1.6 in) across five rainy days. Humidity levels are slightly higher in both months, with September at 71% and February at 73%. For more detailed insights, visit Lagos weather in February.
September and March present distinct weather contrasts. In September, temperatures range from a minimum of 15°C (59°F) to a pleasant maximum of 28°C (82°F), with an average of 21°C (69°F) and very little precipitation, only 6 mm (0.2 in) across no rainy days, all while maintaining a consistent humidity level of 71%. In contrast, March is cooler, with temperatures starting at a minimum of 9°C (49°F) and peaking at 19°C (67°F), averaging just 14°C (58°F). Notably, March experiences much higher rainfall, totaling 61 mm (2.4 in) over 8 days, yet the humidity remains unchanged at 71%. For more detailed insights, check out Lagos weather in March.
September and April present notable contrasts in weather conditions. September boasts warmer temperatures, with a minimum of 15°C (59°F) and an average of 21°C (69°F), peaking at 28°C (82°F). In stark contrast, April features cooler weather, with a minimum of 10°C (51°F) and an average of 15°C (60°F), capping at 20°C (69°F). Moreover, September enjoys a dry spell with only 6 mm (0.2 in) of precipitation and no rainy days, while April is much wetter, receiving 47 mm (1.8 in) of rain over 9 days. Despite these differences, both months maintain a similar level of humidity, with September at 71% and April at 69%. For more detailed information, you can check Lagos weather in April.
In comparing the weather between September and May, September offers warmer temperatures with a minimum of 15°C (59°F) and an average high of 28°C (82°F), while May features cooler temperatures, starting at a minimum of 12°C (53°F) and peaking at 24°C (76°F). September tends to be drier with no recorded precipitation days and only 6 mm (0.2 in) of rain, whereas May experiences a bit more rainfall, totaling 12 mm (0.5 in) over two days. Humidity levels are similar in both months, with September at 71% and May slightly lower at 69%. For more detailed insights on May weather, you can visit Lagos weather in May.
In September, the weather is generally warmer than in June, with average temperatures reaching 21°C (69°F) compared to June's 19°C (66°F). While both months experience similar levels of precipitation, with September receiving 6 mm (0.2 in) and June 4 mm (0.2 in), September stands out with zero rainy days, making it drier than June, which has one day of rain. Humidity is slightly higher in September at 71%, compared to 67% in June, lending a marginally more humid feel to the end of summer. For more details on the weather during this time, you can visit Lagos weather in June.
In September, the weather becomes slightly warmer compared to July, with average temperatures rising to 21°C (69°F) and maximums reaching 28°C (82°F). While both months experience minimal rainfall, September sees a total precipitation of just 6 mm (0.2 in) over 0 days, slightly more than July's 2 mm (0.1 in). Humidity levels are also comparable, with September at 71% and July at 69%. Overall, September offers a more stable warmth, making it a pleasant transition into autumn. For a detailed overview of July's conditions, you can check Lagos weather in July.
In September, temperatures are slightly cooler compared to August, with a minimum of 15°C (59°F) and a maximum of 28°C (82°F), while August sees a minimum of 16°C (61°F) and a maximum of 30°C (86°F). Both months experience minimal rainfall, with September recording just 6 mm (0.2 in) and no rainy days, which echoes August's dry spell with no precipitation. Humidity remains fairly consistent, with September at 71% and August at 68%. For a detailed look at August's weather in Lagos, you can visit Lagos weather in August.
In comparing the weather between September and October, September boasts milder temperatures with a minimum of 15°C (59°F), an average of 21°C (69°F), and a maximum of 28°C (82°F), accompanied by minimal precipitation of just 6 mm (0.2 in) over 0 rainy days. In contrast, October sees a slight drop in temperatures, with a minimum of 12°C (53°F), an average of 19°C (66°F), and a maximum of 25°C (77°F). This month also experiences increased rainfall, totaling 27 mm (1.0 in) across 4 days, contributing to a slightly higher humidity level of 75%. For more details, you can check out Lagos weather in October.
September weather tends to be warmer and drier, with average temperatures ranging from a pleasant 21°C (69°F) to a maximum of 28°C (82°F) and only 6 mm (0.2 in) of precipitation over the month. In contrast, November brings cooler temperatures, with an average of 16°C (62°F) and maximums peaking at 21°C (70°F). November is also notably wetter, receiving about 47 mm (1.8 in) of rainfall over 8 days and increasing humidity levels to 78%. For a more detailed comparison of weather trends in November, you can check Lagos weather in November.
In September, the weather is generally warm and pleasant, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 28°C (82°F) and an average around 21°C (69°F). This month experiences minimal precipitation, totaling only 6 mm (0.2 in) over no rainy days, and a humidity level of 71%. In contrast, December brings cooler temperatures, with a minimum of 10°C (50°F) and a maximum of 19°C (67°F), averaging at 15°C (59°F). The month sees significantly increased precipitation at 45 mm (1.8 in) spread over about 6 days, and higher humidity at 81%. This shift in weather patterns offers a markedly different experience from the sunny and dry days of September. For more detailed insights, you can check the Lagos weather in December.
September in Lagos offers a delightful transition from the summer heat, characterized by mild temperatures and low precipitation. With average highs around 28°C (82°F) and pleasant evenings cooling down to about 21°C (69°F), it is a wonderful time to enjoy outdoor activities without the summer's sweltering heat. The humidity level sits at a comfortable 71%, making it feel refreshing rather than oppressive. Notably, September stands out from other months with a complete lack of rainfall, rendering it an ideal time to explore the stunning landscapes and beaches of Lagos. For more insights into the climate throughout the year, visit Lagos Climate.