September Weather in Ojai, United States

Last updated: February 24, 2025

In September, Ojai, United States, offers a delightful blend of warm temperatures and low humidity, making it a great time to enjoy the outdoors. With a maximum temperature reaching up to 38°C (101°F) and an average of 21°C (70°F), visitors can bask in the sun's glow, while the minimum temperature dips to a cool 7°C (45°F) at night. Rain is almost nonexistent, with only 2 mm (0.1 in) of precipitation recorded over 0 rainy days, ensuring ample sunshine for outdoor activities. The humidity remains comfortable at 48%, allowing for pleasant evenings under the stars. Embrace the warmth and beauty of Ojai this September!

September Temperature in Ojai

In September, Ojai experiences a delightful transition, with temperatures reflecting the warmth of summer while hinting at the coolness of fall. The month starts with minimums around 7°C (45°F), offering a crispness in the morning air, while afternoons can soar to an impressive maximum of 38°C (101°F), making it one of the hottest months of the year. The average temperature hovers around 21°C (70°F), creating a pleasant atmosphere perfect for outdoor activities. Compared to the sweltering months of July and August, which reach peak highs of 37°C (99°F) and 35°C (95°F) respectively, September provides a slight relief, yet retains the summer's warmth. This delightful balance draws both locals and visitors outdoors to savor Ojai's breathtaking landscapes beneath the golden sun.

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

The chart illustrates September temperature patterns in Ojai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec515152596268737369635751
Data source: Temperature data for Ojai 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 Ojai

In September, Ojai experiences a notable shift in its precipitation patterns, mirroring the summer’s prolonged dry spell. With a mere 2 mm (0.1 in) of rain recorded, it's clear that the month continues the trend of minimal rainfall established in the previous months of July and August. Interestingly, September maintains the streak of zero precipitation days, emphasizing the dry conditions typical of early fall in the region. This extends the dry summer season, often characterized by a lack of significant rainfall, which contrasts sharply with the wetter months at the beginning and end of the year. As the landscape anticipates the fall transition, the sparse moisture in September highlights the cyclical nature of Ojai's climate, paving the way for a potential uptick in precipitation in the coming months.

September Precipitation Trends in Ojai

The chart displays monthly precipitation patterns in Ojai, 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.
JanFebMarAprMayJunJulAugSepOctNovDec8170732418322291958
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ojai

In September, Ojai experiences a slight rise in humidity to 48%, marking a subtle shift as the summer months come to a close. This uptick from August's 39% is part of a broader trend, as the area transitions from the arid summer to the more humid fall and winter months. Compared to earlier months, like July and June, which recorded humidity levels as low as 46% and 52%, September heralds a refreshing change. Following this spike, the humidity is set to gradually increase again, peaking in the cooler months of fall, with October at 59% and November soaring to 72%. This seasonal oscillation creates a dynamic climate, making Ojai’s weather both diverse and intriguing throughout the year.

September Average Humidity in Ojai

This chart illustrates the average monthly humidity levels in Ojai, 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.
JanFebMarAprMayJunJulAugSepOctNovDec78%82%76%68%58%52%46%39%48%59%72%76%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ojai

In Ojai, September marks a pivotal transition in UV exposure, boasting a UV Index of 10—considered very high. This indicates a need for protective measures as the burn time decreases to just 15 minutes. Following the extreme levels seen during the summer months, when the Index peaked at 12 in July, September’s values reveal a slight mitigation yet insist on vigilance. As autumn approaches, the UV Index begins its gradual decline, which will lead into the more moderate levels experienced in October. For comprehensive details on UV exposure trends, explore the insights available at Ojai UV Index.

Maximum UV Index Levels in Ojai for September

The chart shows the monthly maximum UV Index (UVI) for Ojai 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.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121110754
Data source: Ojai 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 Ojai

September in Ojai is a delightful transition from the summer’s peak, basking in 315 hours of sunshine. This month captures the tail end of summer’s brilliance while hinting at the approach of fall. Following the sun-drenched days of July, which boasts a high of 383 hours, September offers a gentle decline, yet still provides ample sunny moments. Interestingly, the light begins to wane as the year progresses, with October receiving 294 hours and November further dipping to 256 hours. This gradual shift not only marks a change in the season but also invites residents and visitors alike to savor the unique beauty of Ojai, where every ray of sunshine tells the story of a place in harmony with nature’s rhythms.

Monthly Sunshine Duration in Ojai: September Highlighted

The September sunshine duration represents the total number of hours Ojai 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.
JanFebMarAprMayJunJulAugSepOctNovDec186h232h284h327h365h367h383h360h315h294h256h227h
Data source: Ojai September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ojai During September

September in Ojai, United States, boasts a noteworthy likelihood of sunny weather, with a sunshine probability of 86%. This trend marks a peak in the region's sunny disposition, following the already warm and bright months of May through August, which all hover around the 80% mark. As the summer gradually transitions into autumn, September demonstrates a delightful consistency in clear skies, making it an ideal time for outdoor activities and soaking in the beautiful Californian landscape. The chance of sun in September is significantly higher compared to the later months, hinting at a lingering summer vibe before the cooler October breezes set in. Whether you're hiking, enjoying local festivals, or simply relaxing outdoors, the probability of sunshine makes this month a standout for those seeking warmth and brightness.

Percentage of Sunny Days in September in Ojai

The chart illustrates the percentage of sunny days in Ojai 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 Ojai experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec59%70%73%71%84%82%80%83%86%72%74%52%
Data source: Ojai September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ojai in September

As September unfolds in Ojai, United States, daylight begins to wane, offering about 12 hours of sunlight—a gentle transition from the longer, sunnier days of summer. Following the peak of 14 hours in June and July, this month reflects a noticeable shift as the days shorten, signaling the approach of autumn. Throughout the year, Ojai experiences a gradual increase in daylight from 10 hours in January to its summer zenith, before the gradual descent resumes. This ebb and flow of light not only marks the changing seasons but also invites residents to savor the beautiful October evenings ahead, where daylight will continue to diminish, heading toward the cozy embrace of winter.

Average Daylight Hours in Ojai for September

The chart illustrates the variation in daylight duration in Ojai throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 8m10h 57m11h 59m13h 4m13h 58m14h 24m14h 10m13h 22m12h 20m11h 16m10h 20m9h 52m
Data source: Ojai daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Ojai

As September arrives in Ojai, the gentle caress of the wind lingers at an average speed of 1.6 m/s (4 mph), mirroring the calm that follows the summer's heat. This slight uptick from July and August signals a subtle transition towards the cooler autumn months. Throughout the year, wind speeds gradually decline, peaking in the winter months, and while September matches the mildness of its predecessors, it hints at a refreshing shift towards the more vigorous breezes of late fall. The soft whispers of the September wind make it an inviting time to experience the natural beauty of Ojai, as the landscape begins to prepare for the seasonal changes ahead.

Average September Wind Speed in Ojai

The chart displays monthly wind speed patterns in Ojai, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.22.22.12.01.91.81.51.61.6 m/s1.81.91.7
Data source: Ojai September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Ojai Compares to Other Months

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

In September, the weather is typically warm, with temperatures ranging from a cool 7°C (45°F) at night to a sizzling 38°C (101°F) during the day, and very little precipitation recorded at just 2 mm (0.1 in). The humidity is relatively moderate at 48%, making the hot days feel more comfortable. In contrast, January brings much cooler temperatures, with nighttime lows dropping to -1°C (31°F) and daytime highs averaging 10°C (51°F), reaching a maximum of 28°C (83°F). This month sees significantly more rainfall, totaling 81 mm (3.2 in) over five days, and the humidity rises to 78%, contributing to a wetter and cooler atmosphere. For more specific details on January weather, you can check Ojai weather in January.

In September, the weather is generally warm, with average temperatures around 21°C (70°F) and maximums reaching up to 38°C (101°F). The month is characterized by very little rainfall, averaging only 2 mm (0.1 in) with no precipitation days, and it boasts a relatively low humidity level of 48%. In contrast, February experiences much cooler conditions, with average temperatures at 10°C (51°F) and highs of 27°C (81°F). This month is significantly wetter, receiving about 70 mm (2.8 in) of precipitation across six days, alongside a higher humidity level of 82%. For more detailed insights into the climate, you can check Ojai weather in February.

September and March present strikingly different weather patterns. In September, temperatures soar with a minimum of 7°C (45°F) and soaring averages reaching up to 21°C (70°F), peaking at a sweltering 38°C (101°F). This month boasts very low precipitation, just 2 mm (0.1 in), and humidity at a moderate 48%. In contrast, March features much cooler temperatures, ranging from a minimum of -1°C (30°F) to a maximum of 25°C (77°F), with an average of 11°C (53°F). This month also experiences significantly higher precipitation at 73 mm (2.9 in) over 8 days, accompanied by higher humidity levels at 75%. For more detailed insights, you can check Ojai weather in March.

September and April present contrasting weather patterns, with September typically enjoying warmer temperatures and lower humidity. In September, the minimum temperature is around 7°C (45°F), averaging a comfortable 21°C (70°F) and reaching a high of 38°C (101°F), while experiencing little to no precipitation and maintaining a humidity level of 48%. In contrast, April features cooler temperatures, with a minimum of 3°C (38°F), an average of 15°C (59°F), and a maximum of 30°C (87°F). Additionally, April tends to be wetter, accumulating 24 mm (0.9 in) of precipitation over about two days and exhibiting a higher humidity of 68%. For more detailed insights, check out Ojai weather in April.

September tends to be warmer than May, with average temperatures reaching around 21°C (70°F) compared to May's 16°C (62°F). The maximum temperature in September can soar up to 38°C (101°F), while May sees a much milder peak of 30°C (86°F). Rainfall is significantly less common in September, with just 2 mm of precipitation over 0 days, whereas May experiences about 18 mm of rain spread over 3 days. Additionally, humidity levels are slightly lower in September at 48%, compared to 57% in May. For more details on the weather specifics, check Ojai weather in May.

In comparing the weather between June and September, we find that both months feature mild conditions, but September tends to be warmer overall. September sees a minimum temperature of 7°C (45°F) and a maximum reaching up to 38°C (101°F), with an average of 21°C (70°F). In contrast, June starts slightly warmer with a minimum of 9°C (48°F) and peaks at 34°C (94°F), averaging 20°C (69°F). Both months experience minimal precipitation, with only 2-3 mm recorded and no rainy days, though June has slightly higher humidity at 52% compared to September's 48%. For more details on June's weather, you can visit Ojai weather in June.

In comparing the weather between September and July, we see some notable differences and similarities. September experiences a wider temperature range, with a minimum of 7°C (45°F) and a maximum of 38°C (101°F), while July has a milder minimum of 12°C (55°F) and a slightly lower maximum of 37°C (99°F). Both months report minimal precipitation, with just 2 mm (0.1 in) and no rainy days, contributing to their generally dry conditions. Humidity levels remain comparable, with September at 48% and July at 46%, offering a comfortable atmosphere for outdoor activities. For a closer look at July's climate, visit Ojai weather in July.

In comparing the weather of September and August, we see notable differences in temperature and humidity. September boasts a wider temperature range, with minimums dipping to 7°C (45°F) and maximums reaching up to 38°C (101°F), resulting in an average of 21°C (70°F). In contrast, August remains warmer, with minimum temperatures at 14°C (57°F), an average of 23°C (73°F), and maximums peaking at 35°C (95°F). Both months feature minimal precipitation, each recording only 2 mm (0.1 in) without any rainy days; however, September experiences slightly higher humidity at 48%, compared to August's 39%. For a detailed look at the weather specifics in August, you can visit Ojai weather in August.

In September, the weather is warm and dry, with temperatures ranging from a minimum of 7°C (45°F) to an average high of 38°C (101°F), and just 2 mm of precipitation recorded. The humidity level is relatively low at 48%, creating a comfortable atmosphere for outdoor activities. In contrast, October brings cooler temperatures, with a minimum of 4°C (39°F) and an average high of 34°C (94°F). While the month sees an increase in humidity to 59%, it still remains mostly dry with only 8 mm of precipitation. For those interested in more specifics, you can explore Ojai weather in October.

September and November present contrasting weather patterns. In September, temperatures range from a comfortable low of 7°C (45°F) to a scorching high of 38°C (101°F), with an average of 21°C (70°F). The month boasts minimal precipitation, with just 2 mm recorded over no rainy days, resulting in relatively low humidity at 48%. In stark contrast, November sees cooler temperatures, with lows of 0°C (33°F) and highs reaching 28°C (83°F), an average of 14°C (57°F). This month experiences more moisture, with 19 mm of rainfall over two days, leading to increased humidity levels at 72%. For a more detailed outlook, check out Ojai weather in November.

In September, the weather is notably warmer with average temperatures around 21°C (70°F) and a high that can reach as much as 38°C (101°F), making it a dry month with minimal precipitation of only 2 mm and no rainy days. In contrast, December sees a significant drop in temperature, with averages around 10°C (51°F) and highs peaking at 24°C (75°F). This month is characterized by much higher humidity at 76% and an increase in precipitation, totaling 58 mm across five days. For more detailed insights, check Ojai weather in December.

Compare Ojai's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Ojai

As summer transitions into fall, September in Ojai presents a striking contrast to the preceding months. With warm days that can peak around 38°C (101°F) and a comfortable average temperature of 21°C (70°F), it’s a perfect time for outdoor activities. Unlike the typical rainfall experienced during spring and winter, September boasts zero precipitation days and low humidity levels at 48%, creating an almost arid climate ideal for exploration. This month truly showcases Ojai's distinctive charm, making it an attractive destination for those looking to embrace the warm, dry weather before the cooler days of fall arrive. For more insights into Ojai's weather patterns, check out Ojai Climate.