Last updated: February 24, 2025
September in Long Beach, United States, offers a delightful blend of warm temperatures and low precipitation, making it a perfect time to enjoy the outdoors. The month showcases a maximum temperature reaching up to 36°C (97°F), complemented by a pleasant average of 22°C (71°F) and a comfortable minimum of 15°C (60°F). With just 3 mm (0.1 in) of rain and no precipitation days, visitors can revel in sunny skies and vibrant coastal activities. The humidity levels sit at a manageable 68%, further enhancing the enjoyable atmosphere of this late summer month.
In September, Long Beach experiences a delightful transition as temperatures shift into the latter part of summer. With evening lows averaging around 15°C (60°F), the nights remain pleasantly mild, while daytime highs can soar to a sizzling 36°C (97°F). This month typically showcases an average temperature of 22°C (71°F), making it one of the warmest times of the year. As the summer heat peaks, the warm ocean breezes provide a refreshing relief, inviting locals and visitors alike to enjoy the beaches and outdoor activities. With such warm weather, September is a splendid time to soak up the sun in this vibrant coastal city before the cooler autumn air begins to set in.
In September, Long Beach experiences a notable shift towards dry conditions, with a mere 3 mm of precipitation recorded, equating to just 0.1 inches. This month stands out for its total absence of rainfall days, marking a continuation of the warm, dry summer pattern that typically begins in June and lasts through August. The trend showcases a significant drop in precipitation as the city transitions from the wetter winter months, where January alone sees 61 mm of rain spread over five days. As fall approaches, this gradual decrease in rainfall signals the start of a more arid period, setting the stage for the upcoming dry months.
In Long Beach, September signals a subtle transition as humidity dips to 68%, marking one of the lower points in the year. This decline follows a trend of decreasing moisture levels from the summer's 69% in August, suggesting a shift towards the drier months ahead. Notably, the humidity levels in September have maintained a relatively stable range compared to earlier in the year, where figures hovered between 70% to 79% from January through April. As the city steps into the fall, this gradual reduction in humidity is a refreshing change after the heavier, more humid summer months, setting the stage for a crisp and comfortable autumn.
In September, Long Beach experiences a UV Index of 10, placing it in the very high exposure category and indicating a potential burn time of just 15 minutes. This trend of elevated UV levels continues from the peak summer months—June and July each hit an extreme UV Index of 11—highlighting a season where sun protection is essential. Transitioning into fall, the UV Index drops slightly in October, yet remains significant at 7, reminding residents and visitors alike to remain vigilant against harmful UV rays even as the sun begins to set earlier. For more details on managing sun exposure during this time, check out the full report at Long Beach UV Index.
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September in Long Beach, United States, basks in an impressive 315 hours of sunshine, marking a delightful transition from the intense summer rays of July and August. This month’s sunlight captures the tail end of the sun-drenched season, as it consistently showcases a robust count of hours, only slightly lower than summer peaks. As the year unfolds, the sunlight gradually dims, with October slipping down to 293 hours and November to 256 hours. This trend highlights September as a bridge between the vibrant summer and the cooler, more subdued months ahead, making it an ideal time for outdoor activities and enjoying the lingering warmth before autumn takes hold.
As summer gradually transitions into fall, **September in Long Beach typically enjoys a delightful 69% chance of sunny weather. This slight increase from the summer months, particularly August's 68%, suggests a favorable trend as the region basks in the warmth of lingering sunshine. Although there are fluctuations throughout the year, with peaks in early spring and cooler winter months presenting lower probabilities, September stands out as a consistent time for outdoor activities and beach outings. So, whether you’re planning a picnic or a stroll along the shoreline, you can expect the skies to be mostly clear, making it a wonderful time to embrace the outdoors.
As summer transitions to fall in Long Beach, September brings a gentle decline in daylight, with the sun gracing the skies for approximately 12 hours each day. This subtle reduction follows the peak daylight of 14 hours in June and July, setting the stage for the cozy ambiance of autumn. While August still enjoys 13 hours of light, September signals the start of shorter days, with daylight hours gradually tapering off as the year progresses. The rhythmic ebb and flow of daylight serves as a reminder of nature's cycles, leading us into the crisp days of October and beyond, when 10 hours becomes the norm in November.
As summer gracefully transitions into fall, September brings a gentle breeze to Long Beach, with average wind speeds settling at 2.8 m/s (6 mph). This marks a subtle decline from the slightly brisker conditions enjoyed earlier in the summer months, where wind speeds hovered around 3.1 m/s to 3.3 m/s. Interestingly, throughout the year, Long Beach experiences a consistent wind pattern; however, September stands out as part of the initial wind slowdown leading into autumn. Following this month, October maintains the same mellow pace, hinting at a calmness that characterizes the changing season. As such, September becomes a perfect blend of summer's warmth while embracing the cooler, tranquil whispers of fall.
The weather in Long Beach 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 Long Beach and find detailed weather information for every month.
In September, the weather is characterized by warmer temperatures, with averages reaching around 22°C (71°F) and maximums soaring up to 36°C (97°F). This month experiences minimal rainfall, totaling just 3 mm, and typically has no rainy days, resulting in a comfortable humidity level of 68%. In contrast, January brings cooler temperatures, averaging at 14°C (58°F) and peaking at 27°C (82°F). It is a much wetter month with an average precipitation of 61 mm over five days, leading to a slightly higher humidity of 74%. For more details on January weather, visit Long Beach weather in January.
September and February offer strikingly different weather conditions. In September, temperatures can soar from a minimum of 15°C (60°F) to a scorching maximum of 36°C (97°F), while enjoying very little rain, with just 3 mm of precipitation recorded over no rainy days. The humidity remains moderately high at 68%. In contrast, February presents a cooler climate, with minimum temperatures dropping to 6°C (43°F) and maximums reaching 28°C (83°F). This month is also considerably wetter, experiencing about 48 mm of rainfall spread over five days and a higher humidity level of 79%. For more details on February weather, visit Long Beach weather in February.
September and March present distinct weather profiles, showcasing the transition between the end of summer and the onset of spring. In September, temperatures can soar with a minimum of 15°C (60°F) and a maximum reaching 36°C (97°F), averaging around 22°C (71°F). The month boasts very little rain, with only 3 mm (0.1 in) and no rainy days, contributing to a relatively comfortable humidity level of 68%. In contrast, March experiences cooler temperatures, ranging from a minimum of 8°C (47°F) to a maximum of 25°C (77°F), with an average of 15°C (59°F). This month is notably wetter, receiving 52 mm (2.1 in) of precipitation over 8 days, and presents a higher humidity level of 75%. For a more detailed perspective on March weather conditions, check out Long Beach weather in March.
September and April present distinct weather patterns, with September typically being warmer and drier. In September, temperatures range from a minimum of 15°C (60°F) to a maximum of 36°C (97°F), with an average of 22°C (71°F) and virtually no precipitation. In contrast, April sees cooler temperatures, with a minimum of 11°C (52°F) and a maximum of 32°C (89°F), averaging 17°C (62°F). Additionally, April experiences more precipitation, with 18 mm (0.7 in) occurring over two rainy days, and slightly higher humidity at 70%. For more details, check out the Long Beach weather in April.
When comparing the weather in September and May, it's clear that September tends to be hotter and drier. In September, temperatures can range from a minimum of 15°C (60°F) to a maximum of 36°C (97°F), with an average of about 22°C (71°F) and minimal precipitation of just 3 mm over 0 days. In contrast, May features cooler temperatures, with a minimum of 11°C (53°F) and a maximum of 28°C (82°F), averaging around 17°C (63°F). Moreover, May experiences more precipitation, totaling 10 mm over 2 days, and slightly higher humidity at 70%. For more details on May weather, you can check Long Beach weather in May.
September typically features warmer conditions compared to June, with average temperatures soaring to 22°C (71°F) and maximums reaching up to 36°C (97°F), while June's average is a cooler 19°C (66°F) with a maximum of 30°C (87°F). Both months experience minimal precipitation, each recording just 3 mm (0.1 in) with no rainy days. Humidity levels are slightly lower in September at 68% compared to June's 72%, suggesting a more comfortable feel in the latter part of the summer. For more detailed insights, you can check Long Beach weather in June.
In September, the weather features a minimum temperature of 15°C (60°F) and an average of 22°C (71°F), with maximum temperatures reaching up to 36°C (97°F). The month sees very little precipitation, averaging only 3 mm (0.1 in) and recording no rainy days, alongside a relative humidity of 68%.
In contrast, July has a slightly higher minimum temperature of 16°C (61°F) and an average similar to September at 21°C (71°F), also peaking at a maximum of 36°C (97°F). Like September, July experiences minimal rainfall, with the same precipitation of 3 mm (0.1 in) and no rainy days, though it is slightly more humid with 73% humidity.
For further details on July weather, check out Long Beach weather in July.
In comparing the weather of September and August, September showcases slightly higher maximum temperatures, reaching up to 36°C (97°F), in contrast to August's peak of 31°C (89°F). While the minimum temperatures in both months are close, September experiences an average temperature of 22°C (71°F), equivalent to August's. Notably, both months have minimal precipitation, with September receiving just 3 mm (0.1 in) and August receiving 1 mm (0.1 in), and neither month experiencing any rainy days. Humidity levels are similar as well, with September at 68% and August at 69%. For a more detailed look at August weather, check out Long Beach weather in August.
In September, the weather typically features warm temperatures ranging from a minimum of 15°C (60°F) to a maximum of 36°C (97°F), with an average temperature of 22°C (71°F). The month is characterized by minimal precipitation, recording only 3 mm (0.1 in) over 0 days, and a humidity level of 68%.
In contrast, October brings slightly cooler conditions with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 37°C (98°F), averaging around 20°C (69°F). The month experiences a moderate increase in precipitation, totaling 8 mm (0.3 in) over 2 days, while humidity remains relatively steady at 67%. For a more detailed look at the weather patterns in October, visit Long Beach weather in October.
September typically boasts warmer temperatures, with daily averages around 22°C (71°F) and peak highs reaching up to 36°C (97°F). In contrast, November experiences a notable drop in temperature, averaging 17°C (63°F) with maximums of 31°C (88°F) and minimums around 9°C (48°F). While September remains dry with no recorded precipitation, November introduces some moisture with about 17 mm (0.7 in) of rain over two days. Both months share a humidity level of 68%, but the overall cooler and wetter conditions in November mark a significant shift from the more summer-like warmth of September. For more details, check Long Beach weather in November.
In September, the weather tends to be warm, with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 36°C (97°F) and an average of 22°C (71°F). The month is typically dry, featuring only 3 mm (0.1 in) of precipitation over no rainy days, and a humidity level of 68%. In contrast, December brings cooler temperatures, with a minimum of 7°C (44°F), an average of 14°C (58°F), and a maximum of 26°C (79°F). This month experiences significantly more precipitation, totaling 70 mm (2.8 in) over about 4 rainy days, while humidity rises slightly to 71%. For more details, you may refer to Long Beach weather in December.
As summer gracefully transitions into fall, September in Long Beach offers a delightful reprieve from the sweltering heat of the earlier months. With average temperatures around a pleasant 22°C (71°F), the city basks in comfortable warmth, complemented by minimal precipitation—just a whisper of rain at 3 mm. The lack of rain ensures that sunny days dominate the landscape, allowing residents and visitors to relish outdoor activities without interruption. With humidity levels at a moderate 68%, the air feels fresh and invigorating, making September an ideal time to explore all that Long Beach has to offer. For a more detailed look at year-round weather patterns, visit Long Beach Climate.