September Weather in Osoyoos, Canada

Last updated: April 22, 2025

Experience the vibrant charm of Osoyoos, Canada, in September, where the weather offers a delightful contrast. With maximum temperatures reaching up to 31°C (88°F), the days are warm and inviting, perfect for outdoor adventures. The average temperature hovers around 15°C (59°F), while evenings can cool down to a brisk 1°C (34°F), adding a touch of crispness to the air. Rainfall is modest, with 40 mm (1.6 in) spread over 7 days, contributing to the region's lush landscapes. As humidity levels sit at 74%, expect a refreshing feel to the warm days, making September a unique and engaging time to explore the beauty of Osoyoos.

September Temperature in Osoyoos

In September, Osoyoos begins to show the first whispers of autumn, characterized by a refreshing temperature shift. The days are warm, with highs reaching up to 31°C (88°F), inviting outdoor activities and harvest festivities, while the nights cool down to a comfortable 1°C (34°F). The average temperature settles around 15°C (59°F), making it a delightful time for both locals and visitors to enjoy the stunning landscapes. This transition marks a significant change from the scorching summer months, as the region starts to embrace the tranquil beauty of fall, creating a perfect backdrop for wine tasting and scenic hikes.

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

The chart illustrates September temperature patterns in Osoyoos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec272637455562706958443528
Data source: Temperature data for Osoyoos 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 Osoyoos

In September, Osoyoos experiences a notable shift in precipitation patterns, accumulating 40 mm (1.6 in) of rain over 7 days. This increase follows the typically dry summer months of July and August, where rainfall is minimal. As the season transitions toward fall, September marks a return to wetter conditions, though still much drier than the upcoming months. This surge in precipitation serves as a precursor to the wetter October, which averages around 68 mm (2.7 in), indicating the region's gradual shift from the arid summer climate to the more moisture-laden autumn. Overall, September acts as a bridge, setting the stage for the increased rainfall characteristic of Osoyoos’ later fall months.

September Precipitation Trends in Osoyoos

The chart displays monthly precipitation patterns in Osoyoos, 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.
JanFebMarAprMayJunJulAugSepOctNovDec87738165423181240689398
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Osoyoos

In Osoyoos, Canada, September marks the transition to a drier climate, with humidity levels dropping to a comfortable 74%. This decline continues from the peak summer months, where August enjoys a relatively higher humidity of 75%. Overall, humidity in Osoyoos follows a declining trend from the beginning of the year, where January and February see high levels around 90%, to the pleasantly moderate conditions of September. As autumn approaches, the lingering warmth of summer begins to dissipate, setting the stage for a more crisp and invigorating atmosphere, while still retaining a hint of summer's moisture.

September Average Humidity in Osoyoos

This chart illustrates the average monthly humidity levels in Osoyoos, 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.
JanFebMarAprMayJunJulAugSepOctNovDec90%91%89%86%82%81%84%75%74%85%88%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Osoyoos

In September, Osoyoos, Canada, experiences a noticeable shift in its UV Index, with a reading of 7, categorizing it as high. This marks a decrease from the peak summer months of July and August, which saw an index of 9. As the days start to shorten and the sun’s rays soften, residents and visitors still need to be mindful of sun exposure, as the burn time is approximately 25 minutes. Comparatively, the UV Index remains elevated when viewed against the earlier months of the year, maintaining a consistent trend of higher UV levels from spring until early fall. For thorough guidance on sun safety during all months, be sure to check the Osoyoos UV Index.

Maximum UV Index Levels in Osoyoos for September

The chart shows the monthly maximum UV Index (UVI) for Osoyoos 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.
JanFebMarAprMayJunJulAugSepOctNovDec235789987431
Data source: Osoyoos 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 Osoyoos

As summer fades and autumn approaches, September in Osoyoos, Canada, beautifully showcases a transition marked by 270 hours of sunshine. While this is a dip from the sun-drenched heights of July and August, which bask in over 400 hours of sunlight, it still offers a vibrant tapestry of golden rays perfect for enjoying the outdoors. This month features an abundance of sun, standing out against the dimming days of October, which drops to 208 hours. The gradual reduction in sunshine hours throughout the fall serves as a gentle reminder of the shifting seasons, inviting visitors to relish the lingering warmth before winter's embrace sets in. Whether you're soaking in the surrounding vineyards or exploring the scenic landscapes, September's sunshine in Osoyoos creates a delightful backdrop for autumn adventures.

Monthly Sunshine Duration in Osoyoos: September Highlighted

The September sunshine duration represents the total number of hours Osoyoos 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.
JanFebMarAprMayJunJulAugSepOctNovDec97h161h231h272h338h356h402h359h270h208h130h116h
Data source: Osoyoos September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Osoyoos During September

September in Osoyoos, Canada, offers a pleasant transition into fall, with a 42% chance of sunny weather. This figure marks a noticeable decrease from the summer peaks, particularly July's impressive 80%, emphasizing the region's reputation for exhilarating summer days. While September features fewer sun-filled moments than the preceding months, it still holds its own compared to the autumn months that follow. With rainy days on the horizon, visitors can expect a comfortable climate with the lingering warmth of summer, making it a delightful time for outdoor activities before the cooler weather sets in.

Percentage of Sunny Days in September in Osoyoos

The chart illustrates the percentage of sunny days in Osoyoos 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 Osoyoos experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%29%38%53%53%56%81%54%42%38%21%24%
Data source: Osoyoos September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Osoyoos in September

As summer fades into autumn, September in Osoyoos brings a gentle transition in daylight duration, offering about 12 hours of sunlight. This marks a gradual decline from the peak of 16 hours in June, as the days shorten steadily in anticipation of winter. Following the vibrant, sun-soaked months of July and August, which enjoy 15 and 14 hours respectively, September strikes a balance with just enough light to savor the changing landscape. The month serves as a reminder of nature's rhythm, with longer evenings and a hint of coolness in the air, setting the stage for October's further drop to 10 hours. As the daylight hours wane, Osoyoos begins to embrace the cozy charm of autumn.

Average Daylight Hours in Osoyoos for September

The chart illustrates the variation in daylight duration in Osoyoos throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 44m10h 10m11h 56m13h 45m15h 19m16h 7m15h 40m14h 16m12h 31m10h 43m9h 7m8h 16m
Data source: Osoyoos daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Osoyoos

As September rolls into Osoyoos, Canada, the gentle whisper of the wind offers a refreshing transition from summer’s warmth. With an average wind speed of 1.6 m/s (4 mph), September maintains a delightful breeze that mirrors the consistency seen throughout the year. The wind speeds subtly fluctuate, hovering between 1.5 m/s (3 mph) and 1.7 m/s (4 mph) in the preceding months, suggesting that Osoyoos enjoys a relatively calm atmosphere. This slight uptick in breeziness serves as an ideal backdrop for outdoor activities, inviting residents and visitors alike to bask in the stunning fall scenery. The winds appear to settle into a comfortable rhythm, paving the way for a serene autumn that perfectly complements the rich tapestry of nature unfolding in this picturesque locale.

Average September Wind Speed in Osoyoos

The chart displays monthly wind speed patterns in Osoyoos, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.51.71.61.71.71.61.71.51.6 m/s1.61.61.7
Data source: Osoyoos September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Osoyoos Compares to Other Months

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

September weather in Osoyoos is characterized by mild temperatures, with a minimum of 1°C (34°F) and a pleasant average of 15°C (59°F), reaching up to a maximum of 31°C (88°F). It typically sees around 40 mm (1.6 in) of precipitation over about 7 days, with a humidity level of 74%. In contrast, January brings much colder conditions, with temperatures dropping to a minimum of -24°C (-11°F) and an average of -3°C (27°F), peaking at just 6°C (44°F). The winter month experiences higher precipitation levels at 87 mm (3.4 in) spread over 15 days, and humidity levels rise to 90%. For more information on Osoyoos weather during January, you can visit Osoyoos weather in January.

The weather in September and February presents a stark contrast, with September showcasing milder temperatures and higher humidity. September experiences a temperature range from a chilly 1°C (34°F) at night to a warm average of 15°C (59°F) during the day, peaking at a maximum of 31°C (88°F). This month sees around 40 mm (1.6 in) of precipitation over about 7 days, with a humidity level of 74%.

In contrast, February is much colder, with temperatures dropping to a minimum of -25°C (-13°F) and only reaching an average of -3°C (27°F), peaking at a maximum of 11°C (52°F). February also has higher precipitation, totaling 73 mm (2.9 in) across approximately 14 days, and a humidity level of 91%. For more detailed information about the conditions, you can check Osoyoos weather in February.

September and March exhibit quite contrasting weather patterns. September enjoys a mild average temperature of 15°C (59°F), with maximum highs reaching up to 31°C (88°F), making it a comfortable month for outdoor activities. In contrast, March introduces much colder temperatures, with an average of 3°C (37°F) and minimums plummeting to -21°C (-6°F), reflecting the tail end of winter. Additionally, March experiences more precipitation than September, with 81 mm (3.2 in) falling over 13 days compared to September's 40 mm (1.6 in) over just 7 days. The humidity is also higher in March at 89%, compared to September's 74%. For more specific details about March weather, you can check Osoyoos weather in March.

September and April exhibit quite contrasting weather patterns. In September, temperatures range from a chilly 1°C (34°F) at night to a warm 31°C (88°F) during the day, with an average of 15°C (59°F). The month typically sees around 40 mm (1.6 in) of precipitation over about 7 days, and humidity levels sit at 74%. In comparison, April experiences cooler temperatures, with minimums dropping to -5°C (23°F) and maximums reaching 23°C (74°F), resulting in an average of only 7°C (45°F). April is also wetter, receiving 65 mm (2.5 in) of precipitation over 11 days and higher humidity at 85%. For more details, you can check Osoyoos weather in April.

In comparing the weather of September and May, we find some interesting contrasts. September boasts a wider temperature range, with minimums at 1°C (34°F) and maximums reaching 31°C (88°F), while May features a slightly cooler temperature profile, with minimums at -1°C (30°F) and maximums peaking at 28°C (83°F). Precipitation is fairly similar, with September receiving 40 mm (1.6 in) over 7 days and May slightly higher at 42 mm (1.6 in) over 6 days. Humidity levels in May are also slightly higher at 82%, compared to September’s 74%. For a more detailed look at May weather, you can visit Osoyoos weather in May.

When comparing the weather in September and June, several notable differences emerge. September offers a broader temperature range, with minimums dropping to 1°C (34°F) and maximums reaching 31°C (88°F), while June presents warmer conditions with minimums at 3°C (37°F) and maximums soaring up to 40°C (105°F). Precipitation is slightly higher in September, with 40 mm (1.6 in) falling over 7 days compared to June's 31 mm (1.2 in) over 6 days. Humidity levels also differ, with September experiencing an average humidity of 74% compared to June's higher rate of 81%. For a more detailed look at June conditions, you can visit Osoyoos weather in June.

When comparing the weather in September to that of July, distinct differences emerge. September typically experiences a wider temperature range, with a minimum of 1°C (34°F) and a maximum of 31°C (88°F), averaging around 15°C (59°F). In contrast, July boasts a warmer climate, with minimum temperatures of 8°C (46°F) and highs reaching up to 40°C (104°F), averaging 21°C (70°F). While September sees around 40 mm (1.6 in) of precipitation over about 7 days, July is considerably drier, receiving only 8 mm (0.3 in) across just 2 days, though it also tends to be more humid at 84%. For more specifics about July's weather, check out Osoyoos weather in July.

When comparing the weather between August and September, notable differences emerge. August typically features warmer temperatures, with an average of 20°C (69°F) and a maximum reaching up to 36°C (97°F), while September experiences a cooler average of 15°C (59°F) and a maximum of 31°C (88°F). Precipitation is also more frequent in September, totaling 40 mm (1.6 in) over 7 days, compared to August's minimal 12 mm (0.5 in) across just 2 days. Humidity levels remain relatively similar, with August at 75% and September at 74%. For more detailed insights into August's conditions, you can refer to Osoyoos weather in August.

September typically experiences warmer temperatures, with averages around 15°C (59°F) and highs peaking at 31°C (88°F), while October sees a significant drop, with average temperatures of 7°C (44°F) and maximums reaching only 23°C (74°F). Additionally, October tends to be wetter, receiving 68 mm (2.7 in) of precipitation over 11 days compared to September's 40 mm (1.6 in) over 7 days. The humidity also increases in October, peaking at 85%, up from September’s 74%. For a closer look at what to expect, visit Osoyoos weather in October.

September and November present stark contrasts in weather conditions. September enjoys a wider temperature range, with minimums dipping to 1°C (34°F) and maximums reaching a cozy 31°C (88°F), averaging 15°C (59°F). In comparison, November is much colder, featuring a minimum of -12°C (11°F) and a maximum of only 13°C (56°F), resulting in a chilly average of 2°C (35°F). Additionally, November is notably wetter, with 92 mm (3.6 inches) of precipitation over 17 days, compared to September's 40 mm (1.6 inches) over just 7 days. The humidity also rises in November to 88%, compared to September's 74%. For more details on November weather, check out Osoyoos weather in November.

In September, the weather is generally mild and pleasant, with temperatures ranging from a chilly 1°C (34°F) at night to a warm 31°C (88°F) during the day, while experiencing an average of 15°C (59°F). This month sees relatively low precipitation, with about 40 mm (1.6 in) falling over approximately 7 days and humidity levels at 74%. In stark contrast, December brings much colder conditions, with temperatures dipping as low as -24°C (-10°F) and averaging -2°C (29°F), peaking at a maximum of 14°C (57°F). December also witnesses significantly more precipitation at 98 mm (3.9 in) over 16 days and higher humidity levels at 93%. For more detailed insights on December weather, check out Osoyoos weather in December.

Compare Osoyoos's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Osoyoos

As September unfolds in Osoyoos, the weather showcases a beautiful transition from summer to autumn. With pleasant daytime temperatures often reaching as high as 31°C (88°F) and cooler nights dipping to around 1°C (34°F), the month strikes a remarkable balance between warmth and briskness. While September sees a slight increase in precipitation, with about 40 mm of rain over seven days, it remains relatively dry compared to the wetter months that follow. The humidity level hovers around 74%, making the air feel fresh yet comfortable. This unique blend of warm days and cool evenings makes September a delightful time to explore the picturesque surroundings of Osoyoos. For more details on the climate, check out Osoyoos Climate.