Last updated: February 24, 2025
In September, Topanga, United States experiences a warm and inviting climate, characterized by a maximum temperature soaring to 37°C (100°F) and an average of 22°C (72°F). With a minimum temperature dipping to 14°C (57°F), the early days of autumn provide a pleasant range for outdoor activities. Remarkably, precipitation is minimal, with only 2 mm (0.1 in) recorded throughout the month and no rainy days, allowing for ample sunshine. Humidity levels hover around 68%, contributing to a comfortable atmosphere perfect for enjoying the natural beauty of this coastal gem.
In Topanga, September marks a captivating transition as summer lingers just a little longer, with temperatures showing a blend of warmth and comfort. The month kicks off with a minimum temperature around 14°C (57°F), quickly rising to an average of 22°C (72°F) and peaking at a sizzling 37°C (100°F). This warm embrace of early fall reflects a modest decrease in nighttime temperatures compared to the sweltering heat of July and August, yet the day's highs remain strikingly close to the summer peak. As the month progresses, the region’s climate offers both a delightful warmth perfect for outdoor adventures and a hint of the cooler days ahead, making it an excellent time for both locals and visitors to savor the beauty of Topanga before the chill of autumn sets in.
September in Topanga, United States, sees a notable lull in precipitation, with just 2 mm (0.1 in) of rain recorded throughout the month, and no precipitation days to speak of. This dry spell follows a summer that barely saw moisture, as both July and August experienced only trace amounts of rain. The area's precipitation pattern highlights a distinct seasonal shift, moving from the wetter months of winter through spring—where January typically brings 68 mm (2.7 in)—to the dry heat of summer. As the year progresses into the fall, we anticipate a gradual increase in rainfall, with October's average expected to rise again to 7 mm (0.3 in).
In September, Topanga experiences a noticeable drop in humidity, recording 68%, which marks the end of the summer season. This slight decrease continues the trend of consistently lower humidity levels observed since August, where it reached 69%. The overall pattern for the year shows that humidity tends to be highest in the early months, starting at 74% in January and peaking at 79% in February, before gradually declining as the year progresses. As autumn approaches, the air becomes drier, with October expected to dip further to 67%, signaling a shift to crisper conditions. This ongoing trend not only enhances the beauty of Topanga's natural landscapes but also makes fall a delightful time for outdoor activities.
As summer transitions into fall, September's UV Index in Topanga remains notably high at 10, categorizing it as very high exposure. This month reflects the lingering sun intensity experienced during the peak summer months of June and July, both of which also registered a UV Index of 11, marked by extreme exposure. Much like August, which is characterized by a UV Index of 10 as well, September's burn time is a swift 15 minutes, emphasizing the importance of sun protection as outdoor activities continue. With the UV Index gradually declining in the subsequent months, be prepared to adjust your sun safety measures. For more information, check out the Topanga UV Index to stay informed on daily conditions.
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In September, Topanga basks in the afterglow of summer, offering 314 hours of sunshine that gracefully echoes the warmth and vibrancy of the months prior. As the year transitions, sunshine peaks in July with 380 hours, illuminating the longest days, while August retains a robust 360 hours before the golden rays begin to wane. After September, the sunlight diminishes steadily, with October dipping to 292 hours and November bringing further decline. This pattern underscores a captivating rhythm of brightness that characterizes Topanga's climate, inviting residents and visitors alike to savor the enchanting blend of summer's exit and autumn's embrace.
In Topanga, United States, September stands out as a beacon of sunlight, boasting a 76% chance of sunny weather—the highest of the year. Following a summer that gradually warmed, with August at 73%, the approach of autumn doesn’t bring a decline but rather an uplift in sunlit days. This trend reflects a consistent pattern where the transition months maintain a delightful brightness, with October still retaining a respectable 70% chance. Overall, September offers residents and visitors alike an ideal opportunity to bask in longer, sun-filled days before the clouds of winter begin to gather.
As summer fades into autumn, September in Topanga ushers in a noticeable transition in daylight duration, offering around 12 hours of sunlight. This marks a gradual decline from the peak of 14 hours seen in June and July, aligning with the overall trend of shorter days approaching winter. While September retains a generous amount of daylight compared to the earlier months of the year, such as January and February, which only bask in about 10 hours, the drop from the vibrant summer months is palpable. This shifting light invites a gentle nostalgia, reminding us of the warmth and brightness of summer as nature begins to prepare for the tranquil embrace of fall.
As September arrives in Topanga, the gentle winds begin to lose some of their summer vigor, with average wind speeds dropping to 2.2 m/s (5 mph). This trend reflects a gradual decline in airflow that started in July, where winds hovered around 2.3 m/s (5 mph). Interestingly, despite the seasonal shift, the consistent mildness throughout the warmer months suggests a comforting embrace of soft breezes that are characteristic of the region. As autumn approaches, the winds remain relatively calm, hinting at a tranquil transition, before picking up again in October. This harmonious ebb and flow of wind speeds not only creates a serene atmosphere but also contributes to the enchanting beauty of Topanga's landscapes.
The weather in Topanga 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 Topanga and find detailed weather information for every month.
September and January showcase striking contrasts in weather patterns. September boasts a warm climate with average temperatures around 22°C (72°F) and a high of 37°C (100°F), along with minimal precipitation, making it a dry month with only 2 mm of rain. In contrast, January presents a cooler atmosphere, with average temperatures dropping to 14°C (57°F) and a maximum of 29°C (84°F). This month also experiences significantly higher rainfall, totaling 68 mm (2.7 in) over four days, alongside a slight increase in humidity to 74%. For more detailed insights into the January weather, you can visit Topanga weather in January.
September and February present strikingly different weather conditions. In September, temperatures soar with a minimum of 14°C (57°F) and can reach a scorching maximum of 37°C (100°F), but the month remains remarkably dry, with only 2 mm of precipitation and humidity at 68%. In contrast, February sees much cooler temperatures, ranging from a low of 4°C (39°F) to a maximum of 28°C (83°F), accompanied by significantly higher precipitation of 53 mm (2.1 in) over five rainy days, and a humidity level of 79%. This comparison highlights how February is generally milder and wetter, making for a stark contrast to the heat of September. For more information, check out Topanga weather in February.
September and March present contrasting weather patterns. September enjoys warmer temperatures, with a minimum of 14°C (57°F) and a maximum reaching up to 37°C (100°F), along with relatively low precipitation at just 2 mm (0.1 in) and no rain days, making it a dry month. In contrast, March experiences cooler temperatures, ranging from a minimum of 6°C (43°F) to a maximum of 27°C (80°F), and significant rainfall, totaling 71 mm (2.8 in) across 8 days. The humidity remains relatively similar, with September at 68% and March at 75%. For a deeper insight into weather specifics, check out Topanga weather in March.
In comparing the weather of September and April, September typically boasts warmer temperatures, with an average of 22°C (72°F) and a maximum reaching up to 37°C (100°F), while April's average hovers around 17°C (62°F), with a maximum of 33°C (92°F). September is characterized by minimal precipitation, with only 2 mm (0.1 in) recorded and no rainy days, while April experiences a slightly wetter climate, receiving 15 mm (0.6 in) over two days. Humidity remains relatively consistent, with September at 68% and April slightly higher at 70%. For a detailed look at April's weather specifics, you can visit Topanga weather in April.
September and May offer markedly different weather experiences. In September, temperatures can soar, with a minimum of 14°C (57°F) and an average high of 37°C (100°F), creating a hot and humid atmosphere with humidity levels around 68%. In contrast, May has a cooler climate, featuring a minimum temperature of 10°C (50°F) and an average high of 31°C (88°F). Additionally, May sees slightly more precipitation, with about 10 mm (0.4 in) over one day, compared to September's dry streak. For a more detailed look at May's weather, you can visit Topanga weather in May.
When comparing the weather in September and June, September tends to be warmer overall, with average temperatures reaching 22°C (72°F) and maximums soaring up to 37°C (100°F). In contrast, June is slightly cooler, with an average temperature of 20°C (68°F) and a maximum of 33°C (91°F). Although both months experience very little precipitation, September has a relatively higher level of humidity at 68% compared to June’s 72%. For more details, you can check out Topanga weather in June.
In comparing the weather of September and July, we see that both months boast similar averages, with September featuring a minimum temperature of 14°C (57°F) and a maximum of 37°C (100°F), while July has slightly higher minimum temperatures starting at 16°C (60°F) and peaking at 38°C (101°F). Both months experience negligible rainfall, with just 2 mm (0.1 in) of precipitation and no rainy days recorded, although July has a slightly higher humidity level at 73% compared to September's 68%. For more detailed insights into July conditions, you can check Topanga weather in July.
In comparing the weather of September to August, we see a notable increase in maximum temperatures, with September reaching up to 37°C (100°F) compared to August's peak of 34°C (93°F). The average temperatures remain similar, with September averaging 22°C (72°F) and August slightly higher at 23°C (74°F). Precipitation levels in both months are low, with September experiencing only 2 mm and August even less at 1 mm, both without any rainy days. Humidity levels are also quite comparable, with September at 68% and August at 69%. For more detailed weather information, you can check Topanga weather in August.
In September, the weather remains warm with an average temperature of 22°C (72°F) and a maximum reaching up to 37°C (100°F). The month experiences very little rainfall, with just 2 mm (0.1 in) over no rainy days, coupled with a humidity level of 68%. In contrast, October sees a slight drop in temperatures, with an average of 20°C (69°F) and a minimum of 10°C (50°F). This month also brings a bit more precipitation, totaling 7 mm (0.3 in) over one day, while the humidity remains similar at 67%. For more detailed information about October’s weather, check out Topanga weather in October.
In September, temperatures are notably warmer, with a minimum of 14°C and an average of 22°C, reaching up to a scorching 37°C. The weather is predominantly dry, with only 2 mm of precipitation and no rainy days, coupled with a humidity level of 68%. In contrast, November brings a significant drop in temperatures, with a minimum of 6°C and an average of 17°C, peaking at 32°C. This month experiences more precipitation, totaling 17 mm over one rainy day, while maintaining the same humidity level of 68%. For more details on November weather, you can check Topanga weather in November.
In September, the weather is characterized by warm temperatures that range from a minimum of 14°C (57°F) to a maximum of 37°C (100°F), with an average of 22°C (72°F) and minimal precipitation at just 2 mm over 0 rainy days, coupled with a humidity level of 68%. In contrast, December brings cooler temperatures, with a minimum of 5°C (42°F) and an average of 14°C (57°F), peaking at 27°C (80°F). December also sees a significant increase in precipitation, totaling 80 mm over 5 rainy days, and a slightly higher humidity level of 71%. For more details, check out Topanga weather in December.
In September, Topanga experiences a unique shift in weather as summer transitions to fall. With warm temperatures feeling more moderate than the scorching highs of August, this month offers a delightful average that encourages outdoor activities. The absence of any precipitation, combined with a comfortable humidity level, allows residents and visitors alike to enjoy crisp, clear days under the sun. This month stands out with its striking blend of warmth and dryness, setting it apart from the varying climates of other months. For a deeper understanding of what to expect throughout the year, check out Topanga Climate.