September Weather in Rioja, Spain

Last updated: February 6, 2025

September in Rioja, Spain showcases a delightful blend of warm temperatures and mild weather. With a maximum reaching up to 35°C (95°F) and an average of 22°C (72°F), the days are perfect for enjoying the region's stunning vineyards. Minimum temperatures dip to a comfortable 12°C (55°F) at night, making evenings ideal for outdoor dining. Though the month sees a modest precipitation of 32 mm (1.3 in) spread over just 4 days, the overall humidity hovers around 61%, adding a refreshing touch to the crisp autumn atmosphere. Whether you're exploring the rich wine culture or savoring scenic views, September's weather in Rioja offers an inviting escape.

September Temperature in Rioja

In September, Rioja experiences a delightful transition from summer to autumn, characterized by mild temperatures and vibrant landscapes. The month starts with minimums of 12°C (55°F) at night and can soar to a comfortable maximum of 35°C (95°F) during the day. With an average temperature of 22°C (72°F), it provides a perfect backdrop for enjoying the region's renowned vineyards and picturesque scenery. Compared to the sweltering heat of July and August, September's warmth begins to mellow, making outdoor activities and wine tastings particularly enjoyable. This trend of gradually cooling temperatures signals the approach of autumn, bringing forth a rich harvest season that is deeply celebrated in the region.

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

The chart illustrates September temperature patterns in Rioja, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec475254576673797972635551
Data source: Temperature data for Rioja 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 Rioja

In September, Rioja, Spain, experiences a noticeable uptick in precipitation, with 32 mm (1.3 in) of rain falling over 4 days. This marks a transition from the dry summer months, where rainfall dwindled significantly, culminating in just 3 mm (0.1 in) in July. Compared to August's 14 mm (0.5 in), September signals a return to more regular rainfall patterns as the region prepares for the autumn season. The increase in precipitation not only revitalizes the landscape but also sets the stage for the vital grape-growing cycle that the region is renowned for.

September Precipitation Trends in Rioja

The chart displays monthly precipitation patterns in Rioja, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2918495227931432383217
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Rioja

As summer transitions to autumn in Rioja, Spain, September experiences a notable shift in humidity levels, rising to 61%. This marks an upward trend after the drier months of June (50%), July (55%), and August (54%), creating a more comfortable atmosphere as the days begin to cool. The gradual increase in humidity suggests that while the intense heat of summer has faded, the region still holds onto some moisture before the humidity peaks again in the colder months of October (70%) and November (76%). This dynamic fluctuation not only enriches the region's famed landscapes but also plays a vital role in the cultivation of its celebrated wines, reflecting the essence of Rioja's unique climate.

September Average Humidity in Rioja

This chart illustrates the average monthly humidity levels in Rioja, 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.
JanFebMarAprMayJunJulAugSepOctNovDec76%71%66%58%55%50%55%54%61%70%76%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rioja

As summer transitions into fall, September in Rioja, Spain, experiences a UV Index of 9, marking it as a month of very high exposure potential. Visitors and locals alike should be aware that, with a burn time of just 15 minutes, sun protection becomes essential. This trend follows a summer of extreme UV exposure with July peaking at 11, and August at 10. Although the index slightly drops from the peak summer months, it still requires vigilance; with the UV index typically high in recent months, staying protected from sun damage remains crucial. For more detailed insights, check out the Rioja UV Index.

Maximum UV Index Levels in Rioja for September

The chart shows the monthly maximum UV Index (UVI) for Rioja 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.
JanFebMarAprMayJunJulAugSepOctNovDec3579101211109743
Data source: Rioja 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 Rioja

In September, Rioja, Spain, basks in a delightful 340 hours of sunshine, showcasing a slight drop from the sun-drenched heights of summer but still ensuring plenty of warm, golden days. As the region transitions from the heat of July and August, which boast an impressive 420 and 391 hours respectively, September retains a vibrant ambiance that invites visitors to explore its picturesque vineyards and enjoy the harvest season. This gradual decline in sunlight hour is part of a natural progression as Rioja moves into fall, with October also offering a commendable 325 hours, hinting at the lingering warmth typical of early autumn. Overall, the consistent sunshine throughout the year, peaking in the mid-summer months and tapering gracefully towards the end of the year, paints a picture of a climate that is both agreeable and conducive to the rich wine culture that defines this enchanting region.

Monthly Sunshine Duration in Rioja: September Highlighted

The September sunshine duration represents the total number of hours Rioja 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.
JanFebMarAprMayJunJulAugSepOctNovDec222h279h329h350h406h409h420h391h340h325h277h272h
Data source: Rioja September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Rioja During September

As summer fades into autumn, September in Rioja, Spain, offers a delightful blend of warm days and sunny skies, boasting a 62% chance of sunshine. This probability is a moderate dip from the peak summer months, where July dazzles with an impressive 87% chance, while August holds steady at 73%. However, compared to earlier months, September still presents a favorable forecast, significantly higher than the earlier spring months like April, which only sees 39% sunshine. This trend suggests that visitors during September can enjoy a pleasant climate, making it an ideal time to explore the region’s beautiful landscapes and vineyards bathed in golden light.

Percentage of Sunny Days in September in Rioja

The chart illustrates the percentage of sunny days in Rioja 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 Rioja experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec56%50%58%39%57%73%87%73%62%44%68%60%
Data source: Rioja September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Rioja in September

As summer gracefully transitions into autumn, September in Rioja, Spain offers a delightful mix of 12 hours of daylight. This marks a slight decline from the peak of 14 hours enjoyed during the height of summer in June, July, and August. The month serves as a gentle reminder of the changing seasons, with daylight gradually diminishing as the year moves toward the shorter days of late autumn. Interestingly, this trend reflects a deeper rhythm of nature, where longer, sun-kissed days give way to the crisp comfort of fall. As the vineyards prepare for harvest amid this golden light, September encapsulates the essence of transition, offering both a farewell to summer's warmth and a welcoming embrace of the impending autumn hues.

Average Daylight Hours in Rioja for September

The chart illustrates the variation in daylight duration in Rioja throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 56m10h 49m11h 58m13h 9m14h 8m14h 38m14h 22m13h 30m12h 22m11h 12m10h 10m9h 39m
Data source: Rioja daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Rioja

As the summer heat begins to fade, September in Rioja, Spain ushers in a gentle breeziness with an average wind speed of 2.0 m/s (4 mph). This slight dip in wind compared to the summer months reflects the region's transition into autumn, offering a perfect blend of warmth and refreshing air. Notably, the winds have remained fairly consistent throughout the year, hovering around the 5 mph mark for the first eight months before tapering off somewhat in September and October. The gradual decrease in wind speed signals a shift in the environment, strategically accentuating the unfolding beauty of the wine country as the grape harvest approaches, lending an idyllic, tranquil atmosphere to the landscape.

Average September Wind Speed in Rioja

The chart displays monthly wind speed patterns in Rioja, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.22.52.42.32.12.22.21.92.0 m/s2.02.12.1
Data source: Rioja September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Rioja Compares to Other Months

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

September and January present contrasting weather patterns, highlighting the transition between late summer and winter. In September, temperatures range from a mild 12°C (55°F) to a sizzling 35°C (95°F), with an average of 22°C (72°F) and relatively low humidity at 61%. With only 32 mm (1.3 in) of precipitation spread over four days, it is generally a dry month ideal for outdoor activities.

In contrast, January brings much cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 23°C (73°F), averaging just 8°C (48°F). The average humidity increases to 76%, and while precipitation is slightly less at 29 mm (1.1 in), it still falls over four days. For those looking to experience the chill of winter in Rioja, Rioja weather in January provides detailed insights.

September and February showcase distinct climate characteristics. In September, temperatures range from a mild 12°C (55°F) at night to a warm maximum of 35°C (95°F) during the day, with an average temperature of 22°C (72°F). The month experiences relatively low precipitation at 32 mm (1.3 in) over four days, coupled with a moderate humidity level of 61%. In contrast, February presents a cooler climate, with minimum temperatures dropping to around 1°C (34°F) and a maximum of 23°C (73°F). The average temperature in this month is considerably lower at 11°C (52°F), with reduced rainfall of 18 mm (0.7 in) also over four days, and slightly higher humidity at 71%. For more details on the February climate specifics, you can visit Rioja weather in February.

When comparing the weather between September and March, we see a significant contrast in temperature and precipitation. September tends to be warmer, with average temperatures around 22°C (72°F) and a maximum reaching 35°C (95°F), while March has a cooler average of 12°C (54°F) and peaks at 26°C (79°F). Additionally, March experiences more rainfall, with 49 mm (1.9 in) over 7 days compared to September's 32 mm (1.3 in) over just 4 days. Humidity levels are slightly higher in March at 66%, compared to September's 61%. For a detailed look at the weather in March, check out this link: Rioja weather in March.

When comparing the weather in September and April, significant differences emerge. In September, temperatures range from a minimum of 12°C (55°F) to a high of 35°C (95°F), with an average of 22°C (72°F). The month sees relatively low precipitation, totaling 32 mm (1.3 in) over just four days, and humidity sits at 61%. In contrast, April experiences cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 26°C (79°F), averaging 14°C (57°F). Precipitation is more frequent in April, accumulating to 52 mm (2.0 in) over nine days, and humidity is slightly lower at 58%. These statistics highlight the transitional nature of April compared to the warm and drier conditions of September. For a closer look at April weather patterns, you can visit Rioja weather in April.

In September, the weather tends to be warmer than in May, with average temperatures reaching around 22°C (72°F) and maximum highs peaking at 35°C (95°F). In contrast, May has a cooler climate, with an average temperature of 19°C (66°F) and maximums of 32°C (90°F). Additionally, September experiences slightly more humidity at 61%, compared to May's 55%. Both months have similar precipitation patterns, with September receiving 32 mm (1.3 in) over 4 days and May getting 27 mm (1.0 in) across 5 days. For more detailed insights, you can visit Rioja weather in May.

In September, the weather tends to be warmer and slightly more humid compared to June. With average temperatures peaking at 22°C (72°F) and reaching a high of 35°C (95°F), September offers a maximum temperature only slightly higher than June's 34°C (94°F), where the average is around 23°C (74°F). Precipitation in September totals 32 mm (1.3 in) over an average of 4 days, indicating wetter conditions than June, which sees only 9 mm (0.4 in) across about 2 days. Additionally, humidity levels in September are higher at 61%, while June enjoys a drier atmosphere at 50%. For more detailed insights into June weather, you can visit Rioja weather in June.

In comparing the weather of September and July, we can observe some notable differences. September typically has a wider temperature range, with a minimum of 12°C (55°F) and a maximum reaching up to 35°C (95°F). The average temperature is milder at 22°C (72°F), and the month experiences around 32 mm (1.3 in) of precipitation over four days, leading to an average humidity of 61%. In contrast, July tends to be hotter, with temperatures ranging from a minimum of 15°C (60°F) to a scorching maximum of 38°C (101°F), and an average temperature of 26°C (80°F). Remarkably, July sees very little rain, with only 3 mm (0.1 in) and no rainy days, contributing to a lower humidity of 55%. For more specifics about July weather, you can visit Rioja weather in July.

In comparing the weather between September and August, September tends to be slightly cooler, with average temperatures ranging from a minimum of 12°C (55°F) to a maximum of 35°C (95°F), whereas August experiences higher averages, peaking at 38°C (101°F) with min temperatures around 17°C (62°F). The humidity in September is higher at 61%, compared to August's 54%, which can make the warm days feel a bit more muggy. Additionally, September sees more rainfall with 32 mm (1.3 in) over 4 days, compared to August's remarkably dry spell of only 14 mm (0.5 in) over just one day. For a detailed look at August weather specifically, you can check this link: Rioja weather in August.

In September, the weather features a warm average temperature of 22°C (72°F), with highs reaching up to 35°C (95°F) and relatively low humidity at 61%. The month experiences minimal precipitation, with only 32 mm (1.3 in) spread over 4 days. In contrast, October sees a noticeable drop in temperatures, averaging 17°C (64°F), with minimums dipping to 4°C (39°F) and maximums around 31°C (88°F). The humidity increases to 70%, and rainfall slightly rises to 38 mm (1.5 in) over 5 days. For more detailed information about October weather, you can check Rioja weather in October.

September and November present quite different weather profiles. In September, temperatures range from a minimum of 12°C (55°F) to a maximum of 35°C (95°F), with an average of 22°C (72°F), and only about 32 mm (1.3 in) of precipitation over 4 days, resulting in a relatively comfortable humidity of 61%. In contrast, November sees a noticeable drop in temperatures, with a minimum of 3°C (37°F) and a maximum of 25°C (78°F), averaging 13°C (55°F). The month experiences a similar level of precipitation at 32 mm (1.2 in), but it spans over 5 days and comes with higher humidity at 76%. For more details, you can check out the Rioja weather in November.

September and December present contrasting weather patterns. In September, temperatures range from a minimum of 12°C (55°F) to a maximum of 35°C (95°F), with an average of 22°C (72°F). This month experiences relatively low precipitation of 32 mm (1.3 in) over four days, and humidity sits at a moderate 61%. In stark contrast, December sees much cooler temperatures, with a minimum of -1°C (31°F) and a maximum of 23°C (74°F), averaging around 10°C (51°F). Precipitation decreases significantly to 17 mm (0.7 in) over just two days, while humidity rises to 79%. For more insights about December's weather, you can visit Rioja weather in December.

Compare Rioja's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Rioja

September in Rioja marks a transition into milder autumn conditions, offering a delightful blend of warmth and refreshing breezes. With average temperatures hovering around a comfortable 22°C (72°F), this month provides a pleasant respite from the summer heat, where peaks can reach up to 35°C (95°F) during the day. Rainfall remains relatively low, with only a few 4 days of showers in the month, amounting to just 32 mm (1.3 in). This combination of moderate temperatures and limited rainfall makes September a wonderful time to explore the scenic beauty of Rioja. As humidity levels average around 61%, it creates a pleasant atmosphere that is distinctly different from the often sweltering summer months. For further insights on how September fits into the broader picture of Rioja's weather patterns, visit Rioja Climate.