Last updated: February 6, 2025
Experience the enchanting September weather in Santa Barbara, Spain, where the balance of sun and shade creates a perfect climate for exploration. Daytime temperatures can soar to a maximum of 30°C (87°F), while the average hovers around a comfortable 22°C (72°F), making outdoor activities delightful. As the sun sets, the temperature dips to a refreshing 11°C (53°F), inviting cozy evenings. Although the month brings about 65 mm (2.5 in) of precipitation across 9 days, the air remains invitingly humid at 68%, adding to the region's charm. Embrace the allure of Santa Barbara this September, where each day offers a unique fusion of warmth and a touch of coastal moisture.
In September, Santa Barbara experiences a delightful transition from summer to autumn, with temperatures that remain pleasantly warm. The average temperature hovers around 22°C (72°F), while highs can reach a comfortable 30°C (87°F). Mornings start off cooler, with minimum temperatures around 11°C (53°F), making it ideal for leisurely strolls along the coastline. As the month progresses, there’s a gradual dip in temperatures, hinting at the changing seasons. This month perfectly balances warmth and cool breezes, providing a charming atmosphere that invites both locals and visitors to soak up the sun before it begins to wane.
In September, Santa Barbara experiences a notable shift in rainfall, with 65 mm (2.5 in) of precipitation across 9 days. This amount reflects a gradual increase from the drier summer months, indicating a transition towards wetter autumn conditions. Compared to August, which saw 45 mm (1.8 in) over just 6 days, September not only delivers more rainfall but also a greater frequency of rainy days. This upward trend hints at the broader seasonal patterns of the region, as it ultimately paves the way for the wetter months ahead, particularly October, where average precipitation rises slightly to 71 mm (2.8 in). As such, September stands as a crucial bridge in Santa Barbara's climate, marking the end of summer dryness and the onset of autumn rains.
In September, Santa Barbara experiences a slight uptick in humidity, reaching 68% after the drier summer months of July and August, which both sit comfortably at 64%. This marks a transition as the warm season winds down, with humidity gradually rising again into the fall. The trend showcases a gradual decrease from January’s high of 79%, reflecting the region's characteristic shift from more humid winter conditions to a more temperate summer climate. As the year approaches its close, humidity steadily increases, peaking again in the winter months of October, November, and December, all hovering around 79%. The overall pattern underscores a seasonal rhythm, highlighting the interplay between warm summers and the return of moister air in autumn.
In September, Santa Barbara, Spain, experiences a UV Index of 8, categorizing it as very high. This marks a slight decrease from the peak summer months, yet the burn time remains at a brisk 15 minutes, urging sunbathers to take caution. As the sun begins to wane towards autumn, it's still crucial to protect your skin, reflecting a consistent trend throughout the summer season where UV levels were often extreme to very high. This month serves as a reminder of the lasting intensity of the sun, even as the seasons shift. For more detailed insights, check out the Santa Barbara UV Index.
UV Risk Categories
September in Santa Barbara, Spain, continues the beautiful tradition of abundant sunshine as the summer winds down, boasting 341 hours of glorious sunlight. This month marks a subtle transition, offering fewer rays than the peak of July, which enjoyed an impressive 426 hours. However, September stands strong with sunshine comparable to the vibrant months of April and May, ensuring a delightful climate for outdoor activities. As the days gradually shorten towards autumn, this delightful weather invites visitors to soak up the last remnants of summer bliss before October brings slightly cooler days and 318 hours of light. Those seeking warmth and radiance will find September to be a picturesque time to experience the charm of Santa Barbara.
September in Santa Barbara, Spain, offers a moderate chance of sunny weather, with approximately 40% likelihood of sunshine. This marks a notable dip compared to the thriving summer months, such as July, which boasts a robust 70% chance of clear skies. The trend towards autumn sees a gradual decline in sunny days, as June and August maintain their sunny disposition at 52%. Transitioning from the vibrant summer, September's sunniest moments start to yield to the cooler and slightly cloudier days of October, where the probability of sun rises again to 51%. Overall, while September may not shine as brightly as the peak summer months, it still holds the potential for pleasant weather, making it a suitable time for outdoor activities and leisurely exploration.
As September unfolds in Santa Barbara, Spain, the daylight duration begins its gradual descent, offering about 12 hours of sunlight. This month marks a transition from the summer's longer days, peaking at 15 hours in June, to shorter autumn days, with October hovering around 11 hours. The pattern clearly highlights the symmetrical ebb and flow of daylight throughout the year, where bright, sun-soaked days dominate the earlier months. In September, locals and visitors alike can relish the lingering warmth of summer while slowly embracing the upcoming seasonal changes, setting the stage for cozy autumn nights.
In Santa Barbara, Spain, the gentle September winds offer a subtle transition as summer draws to a close. With an average wind speed of just 2.7 m/s (6 mph), this month sees a slight dip from the breezy heights of summer, where July held stronger gusts at 3.4 m/s (8 mph). As the year progresses, the winds gradually pick up again, notably in November with an average of 4.5 m/s (10 mph). This seasonal pattern reflects a rhythmic dance between calm and invigorating air currents, creating a serene yet dynamic atmosphere that encapsulates the essence of early autumn in this picturesque locale.
The weather in Santa Barbara 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 Santa Barbara and find detailed weather information for every month.
September and January showcase vivid contrasts in weather. September typically brings milder temperatures, with average highs reaching around 22°C (72°F) and maximums climbing to 30°C (87°F), while January experiences much cooler conditions, with average temperatures around 8°C (47°F) and lows dipping to -2°C (29°F). Both months have similar precipitation levels, around 65-63 mm (2.5 in), but September sees rain on more days (9) compared to January's 4 days, resulting in a generally drier winter month. Moreover, January's higher humidity at 79% contributes to a chillier feel, while September's 68% humidity creates a more comfortable environment during the warm days. For more detailed insights, check Santa Barbara weather in January.
September in Santa Barbara showcases a warm and pleasant climate, characterized by temperatures ranging from a cool 11°C (53°F) to a scorching max of 30°C (87°F). With an average temperature around 22°C (72°F) and a moderate humidity of 68%, it’s a great time for outdoor activities, although it does see about 65 mm (2.5 in) of precipitation across roughly 9 days. In contrast, February brings a significant drop in temperature, with minimums reaching -1°C (31°F) and an average of only 10°C (51°F). The maximum temperature in February peaks at a milder 21°C (70°F), and although it experiences less rainfall at 23 mm (0.9 in) over about 5 days, the humidity is slightly higher at 74%. For a more detailed look, you can check Santa Barbara weather in February.
When comparing the weather in September and March, notable differences emerge. September boasts warmer temperatures, with a minimum of 11°C (53°F) and an average of 22°C (72°F), peaking at a max of 30°C (87°F). In contrast, March starts cooler, with a minimum of 3°C (38°F) and an average of 12°C (54°F), peaking at a max of 22°C (73°F). Precipitation levels are also distinct, with September receiving 65 mm (2.5 in) over 9 days compared to March's 41 mm (1.6 in) over 7 days. Humidity is fairly similar, hovering around 68% in September and 71% in March. For more detailed insights, you can explore Santa Barbara weather in March.
In comparing the weather of September and April, September generally presents warmer conditions, with average temperatures reaching 22°C (72°F) and maximums climbing as high as 30°C (87°F). In contrast, April experiences cooler temperatures, with an average of 14°C (57°F) and a maximum of 24°C (76°F). Additionally, September sees slightly less precipitation, measuring 65 mm (2.5 in) over about 9 days, while April has 78 mm (3.1 in) spread across 11 days. Humidity levels remain quite similar, with September at 68% and April at 69%. For those interested in exploring more about April's weather specifics, you can visit Santa Barbara weather in April.
September weather typically features warmer temperatures compared to May, with minimums around 11°C (53°F) and an average of 22°C (72°F), while May sees cooler minimums at 7°C (46°F) and an average of 18°C (64°F). Both months can reach a maximum of 30°C (86°F), but September generally experiences more rain, with about 65 mm (2.5 in) falling over approximately 9 days compared to May's 50 mm (2.0 in) over 6 days. Interestingly, humidity levels are relatively similar in both months, with September at 68% and May at 66%. For a closer look at May weather specifics, visit Santa Barbara weather in May.
In June, temperatures in Santa Barbara range from a pleasant 11°C (52°F) to a sizzling 35°C (95°F), with an average temperature of 22°C (71°F) and relatively low precipitation at 36 mm (1.4 in) over just 6 days, making it a drier month with a humidity level of 65%. In contrast, September sees similar minimum and average temperatures, but the maximum drops to 30°C (87°F). However, it experiences higher precipitation of 65 mm (2.5 in) spread over 9 days and increased humidity at 68%. Overall, June offers hotter days with less rain, while September remains milder yet wetter. For more detailed insights, you can check Santa Barbara weather in June.
In comparing the weather between September and July, September generally experiences a broader temperature range, with minimums dipping to 11°C (53°F) and maximums reaching 30°C (87°F). The average temperature in September is around 22°C (72°F), while July boasts slightly warmer conditions, with minimums at 15°C (59°F) and maximums hitting 33°C (91°F) and an average of 25°C (77°F).
Notably, September receives significantly more rainfall, with 65 mm (2.5 in) over about 9 days, compared to July’s relatively dry climate with only 17 mm (0.7 in) of precipitation across 4 days. Additionally, humidity is slightly higher in September at 68%, contrasted with July's 64%. For more details, you can visit Santa Barbara weather in July.
September's weather generally marks a transition from the warmer days of August. While August boasts higher temperatures, with an average of 25°C (78°F) and peaks reaching 35°C (94°F), September cools down slightly, seeing an average temperature of 22°C (72°F) and maximums of 30°C (87°F). Additionally, September experiences more rainfall, with 65 mm (2.5 in) of precipitation over 9 days compared to August's 45 mm (1.8 in) over 6 days. The humidity is relatively comparable, with September at 68% and August at 64%. For more details on August weather, visit Santa Barbara weather in August.
In comparing the weather between September and October, September tends to be warmer with an average temperature of 22°C (72°F) and peak highs reaching up to 30°C (87°F). It experiences a slightly lower humidity level of 68% and a total precipitation of 65 mm (2.5 in) over 9 days. In contrast, October brings cooler temperatures, with an average of 18°C (64°F), and the maximum temperature drops to 28°C (83°F). The month is slightly wetter, with 71 mm (2.8 in) of rainfall spread over just 5 days, and humidity increases to 77%. For a more detailed overview, you can check out Santa Barbara weather in October.
September boasts warmer temperatures with a minimum of 11°C (53°F) and an average of 22°C (72°F), peaking at 30°C (87°F). In contrast, November sees cooler conditions, with temperatures ranging from a minimum of 3°C (38°F) to an average of 13°C (55°F) and a maximum of 24°C (76°F). Both months receive a similar amount of precipitation, approximately 65 mm (2.5-2.6 in), but November has slightly fewer rainy days, totaling 7 compared to September’s 9 days. Additionally, humidity levels rise in November, reaching 79% compared to September’s 68%. For more detailed information, visit Santa Barbara weather in November.
In comparing the weather between September and December, we see a significant shift in temperature and conditions. September enjoys milder temperatures, with averages around 22°C (72°F) and maximums reaching up to 30°C (87°F), while December sees a drop to a chilly average of 10°C (51°F) and maximums only reaching 19°C (67°F). Precipitation levels also differ; September typically experiences 65 mm (2.5 in) over about 9 days, whereas December has a lighter rainfall total of 31 mm (1.2 in) over just 4 days. Additionally, December boasts higher humidity at 79%, compared to September's 68%. For a detailed look at December weather in Santa Barbara, check out Santa Barbara weather in December.
As September rolls into Santa Barbara, the weather starts to shift, bringing a unique blend of warmth and occasional moisture. This month typically features comfortable temperatures, making it ideal for outdoor activities as summer gives way to a cooler autumn. While the average stays pleasant, expect a few rainy days that contribute to the overall humidity, adding a refreshing twist to the dry season. This transitional period not only enhances the landscape but also attracts visitors keen to experience Santa Barbara's scenic beauty. For a deeper understanding of what to expect throughout the year, visit Santa Barbara Climate.