September Weather in Bass Lake, United States

Last updated: February 24, 2025

In September, the weather at Bass Lake, United States reflects a delightful transition from summer to fall. With maximum temperatures soaring to a sweltering 37°C (99°F), the average temperature settles comfortably at 21°C (69°F), while the evenings bring a welcome chill, dipping to a minimum of 4°C (39°F). The month sees minimal precipitation, with only 7 mm (0.3 in) falling over just 1 day, highlighting the dry conditions. Humidity levels hover around a refreshing 42%, making it an ideal time for outdoor activities amidst the scenic beauty of the lake.

September Temperature in Bass Lake

As summer wanes, September in Bass Lake ushers in a delightful change, featuring a notable transition from the sweltering heat of August. With minimum temperatures settling at a crisp 4°C (39°F) and daytime highs reaching a comfortable 37°C (99°F), this month offers a perfect blend of warmth for outdoor activities. The average temperature of 21°C (69°F) makes it an ideal time for hiking and enjoying the stunning fall foliage. As the days grow shorter, the refreshing coolness of the evenings serves as a gentle reminder of the approaching autumn, making September a charming month for nature enthusiasts to experience Bass Lake's serene beauty.

September Weather in Bass Lake: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Bass Lake, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414144525970777669584941
Data source: Temperature data for Bass Lake 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 Bass Lake

September in Bass Lake marks a noticeable shift in precipitation patterns, with only 7 mm (0.3 in) recorded over just 1 day. This marks a stark contrast to the earlier months of the year, particularly the wet months of January through March, which together experienced over half a meter of precipitation. As summer fades and autumn approaches, September mirrors the typically dry months of June and July, where rainfall amounts dropped significantly. Such a minimal amount of rain signals the transition into a drier season, setting the stage for the more moderate rainfall that October and November bring in, as the region prepares for its wetter winter months ahead. This seasonal ebb and flow not only shapes the local landscape but also influences the wider ecosystem around Bass Lake.

September Precipitation Trends in Bass Lake

The chart displays monthly precipitation patterns in Bass Lake, 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.
JanFebMarAprMayJunJulAugSepOctNovDec206202214906271273580133
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bass Lake

As summer fades into fall, September in Bass Lake, United States, welcomes a slight uptick in humidity, reaching 42%. This increase marks a significant shift from the record lows of 30% experienced in August, signaling a gradual return to more humid conditions as the year progresses. While still comparatively low, September's humidity offers a refreshing contrast to the arid summer months and sets the stage for the upcoming autumn, where levels start to rise again. This trend underscores a seasonal transition, inviting the crispness of fall while maintaining a touch of moisture in the air.

September Average Humidity in Bass Lake

This chart illustrates the average monthly humidity levels in Bass Lake, 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.
JanFebMarAprMayJunJulAugSepOctNovDec82%85%80%72%58%49%36%30%42%59%78%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bass Lake

As summer transitions into fall, September in Bass Lake witnesses a notable dip in the UV Index, yet it remains in the very high category with a UV Index of 9. This shift, following the extreme indices of summer where values peaked at 12, indicates a gradual reduction in sun intensity, though caution is still warranted with a burn time of just 15 minutes. As temperatures cool and outdoor activities beckon, residents and visitors should remain vigilant about sun exposure. The moderate to very high UV ratings throughout the year underscore the importance of sun protection, especially during those peak months. To stay informed about the UV levels throughout the year, check the comprehensive guide at Bass Lake UV Index.

Maximum UV Index Levels in Bass Lake for September

The chart shows the monthly maximum UV Index (UVI) for Bass Lake 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.
JanFebMarAprMayJunJulAugSepOctNovDec4589111212119753
Data source: Bass Lake 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 Bass Lake

As September unfolds in Bass Lake, the sun continues to cast its warm glow, providing 321 hours of bright skies that invite outdoor enthusiasts to bask in nature's beauty. This amount represents a gentle decline from the bustling summer months, where July and June reigned supreme with nearly 390 and 386 hours of sunshine respectively. The transition into fall is apparent, yet September still boasts more sunlight than the upcoming months, such as October and November, making it an ideal time to savor the lingering warmth before cooler days set in. The steady pattern of sunlight hours throughout the year illustrates a natural ebb and flow, reflecting the seasonal dance of light and warmth that shapes the character of this picturesque region.

Monthly Sunshine Duration in Bass Lake: September Highlighted

The September sunshine duration represents the total number of hours Bass Lake 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.
JanFebMarAprMayJunJulAugSepOctNovDec172h228h276h320h369h386h390h363h321h293h244h216h
Data source: Bass Lake September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Bass Lake During September

As summer transitions into fall, September in Bass Lake, United States, offers an impressive chance of sunny weather, standing at a remarkable 92%. This trend reflects the tail end of a warm season, following the peak sunshine rates of August, which boasts an astounding 96%. Overall, summer months consistently show high probabilities of sun, with May and June also delivering 86% and 85% clear skies respectively. As July eases down to 80%, September maintains a favorable outlook that enhances outdoor activities and gatherings. While the likelihood of sunshine lessens in the cooler months, the sun-soaked days of September serve as a delightful prelude to autumn's vibrant hues.

Percentage of Sunny Days in September in Bass Lake

The chart illustrates the percentage of sunny days in Bass Lake 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 Bass Lake experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec51%61%58%74%86%85%80%97%92%67%71%46%
Data source: Bass Lake September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Bass Lake in September

As summer fades in Bass Lake, September ushers in a transition marked by a gradual decline in daylight, offering about 12 hours of sunlight each day. This shift reflects a steady trend observed throughout the year, where daylight peaks in the warmer months of May through July, basking in nearly 14 hours of sun. As August's warmth begins to wane, so does its light, leading us into September's softer days. This month signifies the start of autumn's embrace, as daylight decreases further into October, when the glow of the sun dips to 11 hours. The rhythm of the seasons reminds us to cherish each sun-drenched hour as the days grow shorter.

Average Daylight Hours in Bass Lake for September

The chart illustrates the variation in daylight duration in Bass Lake throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 54m10h 49m11h 59m13h 11m14h 11m14h 40m14h 24m13h 30m12h 21m11h 10m10h 8m9h 37m
Data source: Bass Lake daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Bass Lake

As September unfolds in Bass Lake, the average wind speed remains a gentle 1.8 m/s (4 mph), mirroring the calm breezes of the preceding months. Throughout the summer, winds hovered around this same speed, creating a serene atmosphere perfect for outdoor activities. While trends indicate a slight decline in wind speed as the year transitions toward winter, with October showing a tiny drop to 1.7 m/s, September offers a blissful moment of stability. This consistency encourages outdoor adventurers to embrace the beauty of nature, making it an ideal time for lakeside strolls or leisurely cruises on tranquil waters.

Average September Wind Speed in Bass Lake

The chart displays monthly wind speed patterns in Bass Lake, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.71.61.71.71.91.91.81.81.8 m/s1.71.41.6
Data source: Bass Lake September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Bass Lake Compares to Other Months

The weather in Bass Lake 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 Bass Lake and find detailed weather information for every month.

In September, temperatures are generally mild to hot, ranging from a minimum of 4°C (39°F) to a maximum of 37°C (99°F), with an average temperature of 21°C (69°F) and very low precipitation at just 7 mm (0.3 in) over one day. In stark contrast, January experiences much colder conditions, with temperatures ranging from a minimum of -10°C (15°F) to a maximum of 19°C (67°F) and an average of only 5°C (41°F). The winter month sees a significant increase in precipitation, with 206 mm (8.1 in) falling over seven days and higher humidity at 82%. For a closer look at January weather in the area, you can visit Bass Lake weather in January.

When comparing the weather in September and February, the differences are striking. September offers a wide range of temperatures, with a minimum of 4°C (39°F), an average of 21°C (69°F), and a maximum of 37°C (99°F), accompanied by low precipitation of just 7 mm (0.3 in) over only 1 day. In contrast, February is characterized by much colder temperatures, with a minimum of -14°C (8°F), an average of 5°C (41°F), and a maximum of 21°C (71°F). Additionally, February sees significantly more precipitation at 202 mm (8.0 in) spread over 10 days and higher humidity at 85%. For a more detailed look at February weather in Bass Lake, you can visit Bass Lake weather in February.

September generally offers a warmer climate compared to March, with average temperatures ranging from a mild 21°C (69°F) to highs of 37°C (99°F), while temperatures in March typically hover between a chilly -9°C (17°F) and a pleasant 24°C (75°F). Precipitation is significantly lower in September, with only 7 mm (0.3 in) of rain over just one day, whereas March experiences much wetter conditions, receiving 214 mm (8.4 in) of rain over 12 days. Additionally, September has a lower humidity level of 42%, compared to the higher 80% humidity often felt in March. For more detailed insights, you can check Bass Lake weather in March.

September and April present quite contrasting weather conditions. In September, temperatures range from a cool 4°C (39°F) at night to a warm 37°C (99°F) during the day, with an average of 21°C (69°F). The month is generally dry, only seeing about 7 mm (0.3 in) of precipitation over just one day, accompanied by relatively low humidity at 42%. On the other hand, April experiences much cooler temperatures, with a minimum of -7°C (19°F) and a maximum of 26°C (80°F), averaging around 11°C (52°F). This month is also significantly wetter, with total precipitation reaching 90 mm (3.6 in) across seven days and a higher humidity level at 72%. For more detailed insights into April's weather, you can visit Bass Lake weather in April.

September and May present notably different weather patterns. In September, temperatures range from a chilly 4°C (39°F) at night to a warm average of 21°C (69°F), peaking at 37°C (99°F) on the hottest days. The month is relatively dry, with only 7 mm (0.3 in) of precipitation over just 1 day, and a low humidity level of 42%. In contrast, May features cooler minimum temperatures, dropping to 1°C (34°F) and averaging around 15°C (59°F), with maximum temperatures reaching 33°C (91°F). This month sees significantly more rainfall, totaling 62 mm (2.4 in) across 7 days, accompanied by a higher humidity level of 58%. For a detailed overview, check out Bass Lake weather in May.

In September, the weather features a minimum temperature of 4°C (39°F), a maximum of 37°C (99°F), and an average temperature similar to June at 21°C (69°F). While both months experience the same minimal precipitation of 7 mm (0.3 in) over just one day, September has slightly lower humidity at 42% compared to June’s 49%. This results in September feeling a bit drier and warmer, especially during the daytime. For a detailed look at June weather conditions, you can visit Bass Lake weather in June.

In comparing the weather of September and July, September experiences a wider range of temperatures, with minimums dipping to 4°C (39°F) while still enjoying an average of 21°C (69°F) and highs reaching up to 37°C (99°F). This month sees minimal precipitation at 7 mm (0.3 in) over only 1 day, with a humidity level of 42%. In contrast, July boasts milder minimum temperatures of 10°C (51°F) and a higher average of 25°C (77°F), with maximums hitting 39°C (102°F). Notably, July is characterized by almost negligible rainfall, only 1 mm (0.0 in), spread over 0 days and slightly lower humidity at 36%. For more detailed insights into July weather, visit Bass Lake weather in July.

In comparing the weather of September to that of August, we see distinct differences in temperature and humidity levels. September experiences a wider temperature range, with a minimum of 4°C (39°F), an average of 21°C (69°F), and a maximum of 37°C (99°F). This month also has slightly higher precipitation, measuring 7 mm (0.3 inches) over just 1 day, and a humidity level of 42%. In contrast, August tends to be warmer overall, with a minimum of 12°C (53°F), an average of 24°C (76°F), and a maximum of 38°C (100°F). August also boasts minimal precipitation at just 2 mm (0.1 inches) over 0 days, accompanied by lower humidity levels at 30%. For more information, check out Bass Lake weather in August.

September offers a warm transition from summer, with average temperatures reaching 21°C (69°F) and maximums soaring to 37°C (99°F). The month sees minimal precipitation, with only 7 mm (0.3 in) reported over just one day and a humidity level of 42%. In contrast, October brings a notable drop in temperatures, featuring a chilly minimum of 0°C (32°F) and an average of 14°C (58°F), while the maximums stay comfortable at 31°C (89°F). Precipitation increases significantly to 35 mm (1.4 in) across two days, and the humidity rises to 59%, creating a more refreshing atmosphere. For more detailed information, you can check Bass Lake weather in October.

September and November exhibit striking differences in weather patterns. In September, temperatures range significantly, with a minimum of 4°C (39°F) and a maximum soaring up to 37°C (99°F), while the average sits comfortably at 21°C (69°F). This month sees minimal precipitation, only about 7 mm (0.3 in) over just one day, resulting in relatively low humidity at 42%. In contrast, November experiences a notable shift; temperatures drop, with a minimum of -10°C (15°F) and an average of 9°C (49°F), peaking at a more moderate 25°C (77°F). This month is characterized by increased rainfall, accumulating around 80 mm (3.2 in) across five days and higher humidity levels at 78%. For more detailed insights, refer to Bass Lake weather in November.

September and December present stark contrasts in weather. September boasts a warm average temperature of 21°C (69°F), with daytime highs reaching up to 37°C (99°F) and minimal precipitation of just 7 mm (0.3 inches) over approximately one day. In contrast, December experiences a significant drop in temperature, averaging around 5°C (41°F), and seeing lows plummet to -9°C (16°F). The month is much wetter, with total precipitation soaring to 133 mm (5.2 inches) spread over eight days, accompanied by a higher humidity level of 79%. For more details about December weather in Bass Lake, you can visit Bass Lake weather in December.

Compare Bass Lake's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Bass Lake

As September rolls in at Bass Lake, the weather starts to transition, offering a unique blend of warm days and cooler nights. With maximum temperatures reaching a pleasant 37°C (99°F), the month showcases a notable drop from the intense heat of summer, while the average temperature settles comfortably at 21°C (69°F). Unlike the heavier precipitation of earlier months, September only sees a light sprinkling of rain, totaling just 7 mm over a single day. The humidity drops to a refreshing 42%, making outdoor activities more enjoyable. For those looking to plan a visit, September is the perfect time to explore the serene beauty of Bass Lake in milder conditions. For more details, check out the Bass Lake Climate.