Last updated: February 24, 2025
In Hollywood, California, the weather in September brings a blend of warmth and moisture, captivating both locals and visitors alike. With maximum temperatures reaching a sizzling 33°C (92°F) and an average of 28°C (82°F), days are typically warm and inviting. However, the month also sees a notable precipitation amount of 215 mm (8.5 in), distributed over 24 days, resulting in a humid atmosphere with an average humidity of 76%. This combination creates a lush environment, perfect for exploring the iconic surroundings—but don't forget that sudden rain showers might just add a refreshing twist to your day!
In Hollywood during September, the weather remains warm and inviting, maintaining its summer vibes before transitioning into fall. With a minimum temperature of 24°C (75°F) and an average high reaching 33°C (92°F), this month reflects a solid continuation of the hot summer months. The temperatures remain consistent with the prior months of July and August, boasting an average of 28°C (82°F), ideal for outdoor activities and events. As the summer heat lingers, the vibrant days are still perfect for sun-soaked adventures, making September a delightful month in this iconic locale. As the month progresses, cooler nights hint at the upcoming changes in the season, offering a gentle reminder of the autumn chill to come.
September marks a notable peak in precipitation for Hollywood, with 215 mm (8.5 in) of rainfall recorded across 24 days. This surge contrasts sharply with the summer months that precede it, particularly August, which also boasted significant rainfall at 192 mm (7.6 in) but over the same number of days. The onset of fall brings a shift in weather patterns, often initiating a transition from the dry, hot summer to the cooler and wetter autumn. This trend underscores a noteworthy increase in moisture, hinting at the potential for dramatic weather changes as the region moves deeper into the rainy season. Overall, September's abundant precipitation plays a crucial role in enriching the local environment, setting the stage for the months ahead.
As the summer fades and September arrives in Hollywood, the humidity begins to dance back up from its mid-summer lows. After enjoying a brief respite in the earlier months, where humidity reached a low of 69% in June, September nudges the levels back to a comfortably mild 76%. This increase reflects a slight shift in the season as the cooler air begins to creep in, contrasting with the warmer, drier months of late spring and early summer. Notably, this rise positions September as a transitional period, bridging the more humid fall months ahead, like October's 79%, while still holding onto some of summer's warmth. The fluctuating humidity not only hints at changing weather patterns but also sets an inviting scene for locals and visitors alike to embrace the vibrant atmosphere of Hollywood.
As summer fades into fall, Hollywood's UV Index in September remains notably high, with a reading of 11, placing it in the extreme exposure category. This suggests that while the intense summer sun begins to wane, the risk of skin damage remains significant, with a burn time of just 10 minutes. Throughout the preceding months, UV levels fluctuated between 12 and 13, but September's reading signifies a slight decrease while still demanding caution. As the seasons transition, residents and visitors alike should stay vigilant against UV exposure. For further details on UV trends in Hollywood, visit Hollywood UV Index.
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As summer gracefully transitions into autumn, September in Hollywood shines with an impressive 313 hours of sunshine, marking a slight decline from the summer peak yet remaining vibrant. Following July and August—whose dazzling 339 and 338 hours captivated residents and visitors alike—September continues to bask in warmth while hinting at the cooler days ahead. The trend throughout the year reveals a gradual increase in sunshine hours from the start, peaking in the height of summer before smoothly tapering off into the fall months. This consistent bounty of sunshine not only enhances the allure of Hollywood but also underscores its reputation as a year-round haven for sun-seekers.
As September rolls in, Hollywood experiences a notable dip in sunny days, with only a 32% chance of sunshine. This decline follows the peak summer months, where the likelihood of sun plummets from a modest 47% in May to a mere 18% by July, and slightly increasing to 23% in August. Despite this downturn, September stands out as a transitional month, showing a gradual recovery from the summer slump, though it still falls below the averages seen in the preceding months and the upcoming October, which boasts a 43% chance of clear skies. Therefore, while September may not be drenched in sun, it hints at the potential for more pleasant weather in the fall.
As summer fades into autumn in Hollywood, September brings a gentle decline in daylight, settling at 12 hours—a subtle shift from the long, sun-soaked days of July and August, each boasting 13 hours. This transition signals the onset of shorter days, reminiscent of earlier months when January only enjoyed 10 hours of light. The rhythm of sunlight throughout the year illustrates a captivating ebb and flow, with spring's early promise of longer days gradually giving way to the cozy embrace of fall. With October’s daylight further diminishing to 11 hours, it’s a reminder of nature’s persistent cycle, inviting residents to savor every illuminated moment before winter's shorter days arrive.
In September, the winds in Hollywood take a gentle turn, with an average speed of just 2.2 m/s (5 mph), marking the calmest month of the year. Following the warmer summer months where speeds hovered around 2.9 to 3.6 m/s, this noticeable dip illustrates a transition into the more tranquil fall season. August's breezes start to fade, setting the stage for the cool, peaceful days of autumn. The trend of decreasing wind speeds from the vibrant spring months, which saw averages between 4.0 and 4.5 m/s, to this serene September highlights the shift in the local climate—a beautiful reminder of nature's rhythms in the heart of Hollywood.
The weather in Hollywood 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 Hollywood and find detailed weather information for every month.
September and January present a stark contrast in weather conditions. In September, temperatures average around 28°C (82°F), peaking at 33°C (92°F), accompanied by high humidity (76%) and significant rainfall, totaling 215 mm (8.5 in) over approximately 24 days. This creates a warm and often humid atmosphere. In contrast, January boasts much cooler temperatures, with an average of 21°C (69°F) and a maximum of 29°C (84°F), while the skies are generally clearer with only 35 mm (1.4 in) of precipitation over about 6 days. The humidity in January remains relatively high at 81%, but the overall cooler temperatures provide a more comfortable climate for outdoor activities. For a more detailed look at January weather, visit Hollywood weather in January.
September and February present notably different weather patterns. September is characterized by warmer temperatures, with a minimum of 24°C (75°F) and an average of 28°C (82°F), peaking at 33°C (92°F). This month also sees substantial rainfall, averaging 215 mm (8.5 in) over 24 days, contributing to a high humidity level of 76%. In contrast, February experiences cooler temperatures, with a minimum of 10°C (50°F) and an average of 23°C (73°F), reaching a maximum of 29°C (85°F). Precipitation is significantly lower at 53 mm (2.1 in) over just 11 days, and humidity is slightly higher at 79%. For a detailed look at the February weather in Hollywood, you can check out this link: Hollywood weather in February.
September and March present notably different weather conditions. September is characterized by higher temperatures, with a minimum of 24°C (75°F) and an average of 28°C (82°F), peaking at 33°C (92°F). This month also experiences significant rainfall, totaling 215 mm (8.5 in) over 24 days, contributing to a tropical and humid environment with consistent humidity at 76%. In contrast, March offers a much cooler climate, with temperatures ranging from a minimum of 12°C (53°F) to an average of 23°C (73°F), and a maximum of 30°C (87°F). This month sees much less precipitation, totaling just 30 mm (1.2 in) over 6 days, while the humidity remains steady at 76%. For further details, you can check Hollywood weather in March.
In September, temperatures are notably higher, with a minimum of 24°C (75°F) and an average of 28°C (82°F), peaking at 33°C (92°F). The month also experiences significant rainfall, with 215 mm (8.5 in) of precipitation over 24 days, resulting in high humidity levels at 76%. Conversely, April offers a milder climate; temperatures range from a minimum of 14°C (58°F) to an average of 25°C (77°F), with a maximum of 32°C (90°F). Precipitation is considerably lower at 75 mm (2.9 in) and occurs over just 12 days, leading to slightly less humidity at 73%. For more details, you can check Hollywood weather in April.
When comparing the weather in September and May, it’s clear that September tends to be warmer and more humid. In September, temperatures range from a minimum of 24°C (75°F) to a maximum of 33°C (92°F), with an average of 28°C (82°F), while May features slightly cooler temperatures, with a minimum of 18°C (65°F), maximum of 32°C (89°F), and an average of 26°C (79°F). September also sees more precipitation, with 215 mm (8.5 in) over 24 days compared to May's 170 mm (6.7 in) over 17 days. Additionally, humidity is higher in September at 76%, compared to 71% in May. For more information about May weather, check out Hollywood weather in May.
In September, the weather tends to be slightly warmer, with an average temperature of 28°C (82°F) and maximum highs reaching up to 33°C (92°F), compared to June’s average of 27°C (82°F) and maximum of 32°C (91°F). Both months experience high humidity, but September is notably more humid at 76%, while June's humidity is lower at 69%. Additionally, September sees more precipitation, with 215 mm (8.5 in) over 24 days, compared to June's 191 mm (7.5 in) across 23 days. For more details on June weather, you can visit Hollywood weather in June.
In comparing the weather of September and July, we see notable similarities and differences. Both months have a minimum temperature around 24°C (75°F), an average of 28°C (82°F), and a maximum of 33°C (92°F), indicating consistent warmth throughout the summer. However, September experiences more precipitation, with 215 mm (8.5 in) spread over 24 days, compared to July's 188 mm (7.4 in) over 27 days. Additionally, September's humidity is slightly higher at 76%, while July sits at 70%. For more detailed insights, you can check Hollywood weather in July.
In comparing the weather between September and August, both months feature similar minimum temperatures, averaging around 24°C (75°F) to 24°C (76°F). However, September tends to be slightly warmer overall, with an average temperature of 28°C (82°F) compared to August's 28°C (83°F). Notably, September experiences higher maximum temperatures, averaging 33°C (92°F) versus August’s 32°C (90°F). When it comes to rainfall, September receives more precipitation, totaling 215 mm (8.5 in) over 24 days, while August sees 192 mm (7.6 in) over 27 days. Additionally, September has higher humidity levels at 76%, compared to 72% in August, making it feel a bit muggier. For more detailed information on August weather, visit Hollywood weather in August.
September weather is characterized by warmer temperatures, with a minimum of 24°C (75°F) and an average of 28°C (82°F), reaching highs of 33°C (92°F). The month is also marked by significant rainfall, totaling 215 mm (8.5 in) over 24 days, and a humidity level of 76%. In contrast, October brings a noticeable drop in minimum temperatures to 14°C (57°F), while still maintaining a pleasant average of 27°C (80°F) and a maximum of 31°C (88°F). It experiences less precipitation at 167 mm (6.6 in) over 23 days, with humidity slightly increasing to 79%. For more detailed information, you can check Hollywood weather in October.
September and November present quite a contrast in weather patterns. September boasts a warmer climate with average temperatures around 28°C (82°F) and maximums reaching up to 33°C (92°F), making it the height of warmth before the cooler months. The month also experiences significant rainfall, with 215 mm (8.5 in) of precipitation spread over 24 days, accompanied by a relative humidity of 76%. In contrast, November sees cooler temperatures, with averages dropping to 24°C (75°F) and maximums up to 30°C (86°F). This month experiences considerably less rainfall at 94 mm (3.7 in) over 15 days, along with a slight increase in humidity to 80%. For more detailed insights on specific weather patterns in November, check out Hollywood weather in November.
September and December present contrasting weather conditions. In September, the temperatures range from a minimum of 24°C (75°F) to a maximum of 33°C (92°F), with an average of 28°C (82°F). This month also experiences significant rainfall, totaling 215 mm (8.5 in) over 24 days, coupled with high humidity at 76%. In contrast, December offers milder temperatures, with a minimum of 9°C (49°F) and a maximum of 29°C (84°F), averaging 22°C (72°F). Additionally, precipitation is notably lower in December at 45 mm (1.8 in) over just 10 days, and humidity slightly increases to 81%. For more detailed insights, check out Hollywood weather in December.
As September rolls into Hollywood, the weather showcases a striking contrast to the rest of the year. The warm temperatures create a comfortable environment, but the increased humidity and frequent rainfall mark this month as particularly unpredictable. With around 24 days of precipitation, this month often feels wetter than others, making outdoor plans a bit of a gamble. Despite this, the lush landscapes and vibrant atmosphere during this transition from summer to fall offer a unique charm. For those interested in understanding the broader impact of this weather, check out Hollywood Climate for more insights.