Last updated: February 6, 2025
September in Alcalá de Henares, Spain, presents a delightful contrast of warm and refreshing weather. With maximum temperatures soaring to 35°C (96°F), the days are perfect for outdoor activities, while the average temperature rests comfortably at 21°C (70°F), providing a pleasant ambiance for evening strolls. However, as nights cool down, temperatures can drop to a brisk 6°C (42°F). Rainfall is modest, with 38 mm (1.5 in) recorded over 4 days, and humidity levels hover around 65%, adding a touch of freshness to the air. This vibrant weather showcases the charm of Alcalá de Henares in September, inviting both residents and visitors to relish its diverse climate.
As summer gives way to autumn in Alcalá de Henares, September offers a delightful transition marked by mild and pleasant temperatures. With minimums around 6°C (42°F) and average highs reaching up to 35°C (96°F), the month strikes a balance between lingering warmth and the first hints of cooler weather. The average temperature of 21°C (70°F) creates an inviting atmosphere, perfect for outdoor strolls through the historic streets or enjoying a café al fresco. This month stands as a testament to the region's diverse climate, showcasing not only a residual summer heat but also a beckoning towards the refreshing chill of fall, making it an ideal time to experience the vibrant culture and stunning landscapes of this charming Spanish town.
In September, Alcala de Henares experiences a moderate shift in precipitation, receiving 38 mm (1.5 in) of rain over 4 days. This increase marks a notable transition from the drier summer months, where July and August recorded only 11 mm and 23 mm respectively. As autumn approaches, the rain serves as a precursor to the wetter months ahead, with October historically bringing a significant uptick to 61 mm (2.4 in) across 6 days. Such trends highlight September as a pivotal month in the region's precipitation pattern, bridging the gap between the parched summer and the refreshing rains of autumn.
In September, Alcala de Henares experiences a shift as humidity rises to 65%, marking a noticeable increase from the drier summer months of July and August, which exhibit the year's lowest levels at 59% and 58%, respectively. This uptick signals the transition into autumn, as humidity levels gradually ascend from the summer lows. Despite this increase, September remains relatively comfortable compared to the wetter months ahead, such as November and December, which soar back to 87% and 90% humidity. The evolving humidity trends reflect Alcala de Henares' distinct seasonal changes, blending the warmth of summer with the impending chill of fall.
As summer fades into autumn, the UV Index in Alcala de Henares begins to decline, yet September still boasts a very high UV Index of 8, requiring a burn time of just 15 minutes. This gradual dip from the extreme levels seen in July and June underscores a trend toward safer sun exposure, though caution is still warranted. With earlier months showcasing moderate levels, the increasing UV Index from March onwards, peaking in summer, indicates a significant seasonal shift. As you enjoy the lingering warmth of September, don’t forget to protect your skin; for more detailed insights, check out Alcala de Henares UV Index.
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In Alcala de Henares, September ushers in a splendid transition as summer begins to wane, showcasing an impressive 349 hours of sunshine. This month sits comfortably between the sun-drenched heights of July and June, which bask in over 430 hours each, highlighting a gradual yet noticeable decline in daylight as autumn approaches. Interestingly, while September offers fewer sun-soaked hours than its preceding summer months, it still maintains an enviable glow compared to the winter months that follow, such as November and December, which dip to 246 and 237 hours respectively. This trend reflects not only the region's favorable climate but also its allure as a seasonal destination, bridging the vibrant energy of summer and the cooler embrace of fall.
As summer transitions into autumn, September in Alcala de Henares, Spain offers a decent chance of sunny days, with a 51% likelihood of sunshine. Following the peak months of July and August, where the sun shines nearly all the time, September experiences a slight dip in sunny weather but still surpasses the early months of the year like January and February, which linger around 42% and 30%. This trend reflects a gradual cooling but maintains a promising outlook for those looking to enjoy early fall warmth. With mild temperatures and a fair chance of sunny skies, September stands out as an ideal time to explore the vibrant culture and history of this charming city.
In September, Alcala de Henares enjoys a moderate 12 hours of daylight, marking a gentle transition as summer yields to fall. This duration reflects a gradual decrease from the sun-drenched 15 hours in June and 14 hours in July, signaling the shift to shorter days. The rhythm of daylight throughout the year illustrates a clear trend: starting from just 9 hours in January, daylight gradually increases to its peak in June before consistently tapering off, leading back to the winter months. As autumn approaches, September serves as a bridge, offering a blend of the lingering summer light and the crisp air of the upcoming season.
As summer gracefully fades into autumn, September in Alcala de Henares witnesses a subtle decline in wind speeds, averaging 2.3 m/s (5 mph). This gentle breeze feels like a sigh of relief after the warmer months, reflecting a broader trend of decreasing wind velocities noted since the peak summer days. Following a brief peak in July, when gusts touched 2.7 m/s, winds gradually soften, giving way to the calmness that prefaces the cooler October air. The gradual transition from summer's warmth to autumn's embrace, paired with these softening winds, sets the perfect backdrop for afternoons spent in the lush landscapes of this historic town.
The weather in Alcala de Henares 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 Alcala de Henares and find detailed weather information for every month.
In September, the weather is generally warm and pleasant, with temperatures ranging from a cool 6°C (42°F) at night to a hot 35°C (96°F) during the day, averaging around 21°C (70°F). The month experiences moderate humidity levels at 65% and a relatively low precipitation of 38 mm (1.5 in) over about 4 days. In contrast, January brings a significant drop in temperatures, with a minimum of -8°C (18°F) and a maximum of only 18°C (65°F), yielding an average temperature of 4°C (40°F). The humidity is higher at 90%, and precipitation is slightly lower at 34 mm (1.3 in) spread across 5 days. For those interested in detailed January weather data, you can visit Alcala de Henares weather in January.
September and February in Alcala de Henares present a stark contrast in weather conditions. September features milder temperatures with an average of 21°C (70°F) and maximums reaching up to 35°C (96°F), making it a warm month with a moderate level of humidity at 65%. In contrast, February is much cooler, with minimum temperatures dipping to -5°C (23°F) and an average of only 8°C (46°F). The likelihood of rain is similar in both months, with precipitation occurring over about four days, though February experiences slightly less rainfall at 31 mm (1.2 in) compared to September's 38 mm (1.5 in). Additionally, February sees a higher humidity level of 86%, contributing to a chillier overall feel. For a detailed overview of February weather, you can visit Alcala de Henares weather in February.
September and March present contrasting weather experiences. In September, temperatures are notably warmer, with a minimum of 6°C (42°F) and an average reaching 21°C (70°F), peaking at a high of 35°C (96°F). The month sees less precipitation, averaging 38 mm (1.5 in) over just 4 days, and with a humidity level of 65%. In contrast, March offers a cooler climate, with temperatures ranging from a minimum of -2°C (29°F) to an average of 10°C (50°F) and a maximum of 26°C (78°F). It experiences increased precipitation at 54 mm (2.1 in) spread over 9 days and higher humidity at 79%. For more details, check Alcala de Henares weather in March.
When comparing the weather in September and April, significant differences emerge in temperature and precipitation patterns. September boasts warmer temperatures, with a minimum of 6°C (42°F) and an average high of 35°C (96°F), making it much more conducive for outdoor activities. In contrast, April sees cooler temperatures, starting from a low of -2°C (28°F) and peaking at 28°C (82°F), creating a more temperate climate overall. Additionally, April experiences more rainfall, with 88 mm (3.5 in) over 13 days, compared to September's 38 mm (1.5 in) over just 4 days. Higher humidity in April at 74% compared to September's 65% may also impact comfort levels. For more detailed insights, check Alcala de Henares weather in April.
When comparing the weather in September and May, we see notable differences in both temperature and humidity. September boasts a warmer average temperature of 21°C (70°F) with maximums reaching up to 35°C (96°F), while May has a cooler average of 18°C (64°F) and peaks at 34°C (93°F). Precipitation levels are fairly similar, with September receiving 38 mm (1.5 in) over 4 days, compared to May's 35 mm (1.4 in) spread over 7 days. Additionally, September's humidity is slightly lower at 65% compared to May's 71%. For those interested in more detailed insights about May's weather, you can check out Alcala de Henares weather in May.
When comparing the weather in September and June, we see some notable differences. September typically offers a broader temperature range, with minimums resting at 6°C (42°F) and maximums soaring up to 35°C (96°F), while June has slightly higher averages, starting at a low of 7°C (44°F) and peaking at 40°C (105°F). Both months experience relatively low precipitation, but September receives a bit more at 38 mm (1.5 in) over 4 days compared to June's 26 mm (1.0 in) over 5 days. Humidity levels in September are slightly higher at 65%, compared to June’s 63%. For more detailed insights, you can check Alcala de Henares weather in June.
When comparing the weather in September and July, we notice distinct differences in temperature and precipitation patterns. September boasts a minimum temperature of 6°C (42°F) and an average of 21°C (70°F), reaching a maximum of 35°C (96°F), while July starts warmer with a minimum of 10°C (50°F) and an average of 26°C (80°F), peaking at 40°C (105°F). Despite July having higher temperatures overall, it experiences significantly less precipitation at 11 mm (0.4 in) over just 2 days compared to September's 38 mm (1.5 in) across 4 days. Additionally, September's humidity averages around 65%, slightly higher than July’s 59%. For a detailed analysis of July's weather, you can check Alcala de Henares weather in July.
In comparing the weather of September to August, it is evident that September experiences cooler temperatures, with a minimum of 6°C compared to August's minimum of 9°C. The average temperature in September is 21°C, which is noticeably lower than August's warmer average of 26°C. Additionally, September has a maximum temperature of 35°C, while August can reach up to 40°C, revealing a significant drop in the highest temperatures as summer transitions into fall. Precipitation is slightly higher in September at 38 mm over four days, compared to August's 23 mm over just two days. Humidity levels are also elevated in September at 65%, contrasting with August's 58%. For more detailed information on August weather, you can check Alcala de Henares weather in August.
September generally experiences warmer temperatures with an average of 21°C (70°F) and maximum highs reaching up to 35°C (96°F). In contrast, October sees a notable drop in average temperature to 15°C (59°F), with minimums dipping to as low as 1°C (34°F). While September has lower humidity at 65%, October's humidity rises to 77%, contributing to a more damp atmosphere. Additionally, October brings more precipitation, averaging 61 mm (2.4 in) over six days compared to September's 38 mm (1.5 in) across four days. For more detailed insights, you can check Alcala de Henares weather in October.
September and November present a striking contrast in weather patterns. In September, temperatures range from a minimum of 6°C (42°F) to a maximum of 35°C (96°F), offering warm days with an average of 21°C (70°F) and relatively low humidity at 65%. Precipitation is minimal, with only 38 mm (1.5 in) falling over just 4 days. In contrast, November experiences cooler temperatures, with lows dipping to -3°C (27°F) and an average of 9°C (49°F), making for a significantly chillier environment. The maximum temperature reaches 22°C (71°F), but the high humidity at 87% and increased precipitation of 57 mm (2.2 in) spread over 11 days create a damp and cooler atmosphere. For more detailed insights, visit Alcala de Henares weather in November.
September and December present contrasting weather patterns. In September, the temperatures are significantly warmer, with minimums around 6°C (42°F) and maximums reaching up to 35°C (96°F), providing an average of 21°C (70°F). The month sees a moderate level of precipitation at 38 mm (1.5 in) over just 4 days, accompanied by a humidity level of 65%. In stark contrast, December experiences cooler temperatures, with lows dropping to -5°C (23°F) and highs capped at 17°C (64°F), resulting in an average temperature of just 6°C (44°F). This month has slightly higher precipitation at 48 mm (1.9 in) spread across 8 days, with humidity peaking at 90%. For a more detailed look at the winter conditions, you can check Alcala de Henares weather in December.
September in Alcala de Henares marks a transition from the intense heat of summer to more moderate temperatures, making it a delightful time for outdoor activities. With pleasant averages hovering around 21°C (70°F) and occasional peaks reaching up to 35°C (96°F), the month offers a balance that is often lost during the sweltering summer. Rainfall becomes more frequent, though still light, averaging just a few days with a total of 38 mm, providing a refreshing contrast to the dryer months. Humidity levels at 65% add a slight moisture to the air, but overall, September is a fantastic month to enjoy the city's vibrant atmosphere. For more insights into the region's weather patterns, check out Alcala de Henares Climate.