September Weather in Colleville, France

Last updated: February 26, 2025

In September, Colleville, France experiences a mild and somewhat humid climate, with average temperatures hovering around 16°C (62°F). Daytime highs can reach a pleasant 27°C (80°F), while the evenings cool down to a minimum of 8°C (47°F). This month sees approximately 83 mm (3.3 in) of rainfall, spread over 13 days, contributing to the region's lush landscapes. With humidity at 76%, visitors can expect a refreshing atmosphere as they explore the natural beauty of this charming coastal town.

September Temperature in Colleville

In Colleville, France, September marks a refreshing transition into early autumn, with temperatures ranging from a minimum of 8°C (47°F) to a pleasant maximum of 27°C (80°F). As summer's warmth begins to wane, the average temperature settles around 16°C (62°F), offering a comfortable climate for outdoor activities. This month sees a notable drop in temperatures compared to the height of summer, yet remains milder than the chillier months ahead. With gentle breezes and the vibrant hues of changing leaves, September is an ideal time to explore the charming landscapes and historical sites of Colleville, making the most of the lingering warmth before the onset of autumn.

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

The chart illustrates September temperature patterns in Colleville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec434447505561646461574946
Data source: Temperature data for Colleville 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 Colleville

In September, Colleville experiences a shift toward wetter weather as the summer months draw to a close. With 83 mm (3.3 in) of precipitation spread over 13 days, this month stands out as a time of transition, resembling the heavier rains that are to come in the fall. The rain levels are slightly above what is observed in the more temperate summer months of July and August, which recorded 49 mm (1.9 in) and 76 mm (3.0 in) respectively. This uptick in precipitation indicates a gradual return of moisture to the region, setting the stage for the more significant downpours typical of October and November. As September progresses, the lush landscapes of Colleville flourish, reflecting the nourishing rains that herald the approach of autumn.

September Precipitation Trends in Colleville

The chart displays monthly precipitation patterns in Colleville, 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.
JanFebMarAprMayJunJulAugSepOctNovDec868286348268497683118116162
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Colleville

As summer transitions to autumn, September in Colleville, France, experiences a noticeable shift in humidity levels. Following the warm, dry spells of July and August, when humidity dipped to 73% and 68% respectively, September sees a modest increase to 76%. This slight uptick signifies the onset of the wetter autumn months ahead, as humidity levels begin to approach the higher figures characteristic of the colder season. Notably, the cooler months of October and November bring back the more familiar dampness, with highs around 88% and 92%, contrasting sharply with the summer's embrace of drier air. Thus, September marks a pivotal point, bridging the gap between the warmth of summer and the coolness of fall.

September Average Humidity in Colleville

This chart illustrates the average monthly humidity levels in Colleville, 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.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%85%84%82%80%73%68%76%88%92%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Colleville

As September rolls into Colleville, France, the UV Index gently eases back to 6, placing it in the high exposure category with a burn time of 25 minutes. This marks a noticeable decrease from the peak summer months of June, July, and August, where readings hovered around 8 to 9 in the very high range. The transition reflects the waning intensity of summer sunlight, but UV levels still warrant attention, particularly for outdoor activities. This month serves as a reminder to remain vigilant about sun protection, creating a bridge between the vibrant summer and the cooler fall months. For more detailed insights, check the Colleville UV Index.

Maximum UV Index Levels in Colleville for September

The chart shows the monthly maximum UV Index (UVI) for Colleville 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.
JanFebMarAprMayJunJulAugSepOctNovDec234679886421
Data source: Colleville 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 Colleville

In Colleville, France, the month of September enjoys a delightful 328 hours of sunshine, marking a gradual transition from the summer's radiant peaks. This sunny abundance reflects a typical late-summer pattern, where the brightness begins to wane from the July high of 429 hours, yet remains significantly brighter than the dimmer winter months that loom ahead. As days shorten and autumn approaches, September serves as a beautiful bridge, with sun-soaked moments inviting outdoor activities and picturesque strolls. Interestingly, after peaking in summer, the sunshine hours steadily decline into the fall, highlighting the seasonal rhythms of this charming locale.

Monthly Sunshine Duration in Colleville: September Highlighted

The September sunshine duration represents the total number of hours Colleville 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.
JanFebMarAprMayJunJulAugSepOctNovDec129h198h286h360h410h419h429h389h328h271h212h170h
Data source: Colleville September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Colleville During September

As autumn approaches, September in Colleville, France, showcases a 38% likelihood of sunny weather, aligning closely with the trends seen in the summer months. While it is a slight dip from the peak of 60% in April, September maintains a respectable chance of basking in sunlight, reminiscent of the sunnier days of July and August. This modest probability suggests that early fall can still offer delightful, sunlit moments amid the gentle transition to cooler weather. Nevertheless, with a consistent decrease observed from summer to autumn, visitors should remain prepared for the occasional cloud cover that September may bring.

Percentage of Sunny Days in September in Colleville

The chart illustrates the percentage of sunny days in Colleville 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 Colleville experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec17%27%45%60%41%30%40%38%38%35%30%21%
Data source: Colleville September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Colleville in September

As summer fades into autumn, September in Colleville, France experiences a gentle decline in daylight, offering around 12 hours of sunlight. This month marks a transition from the peak brightness of June, where daylight extends to a remarkable 16 hours, to the more subdued ambiance of October with its 10 hours of daylight. The gradual decrease in daylight hours from May's sun-kissed 15 hours reflects nature's shift towards a cooler, crisper season. September serves as a bridge, inviting residents and visitors to enjoy the last remnants of longer days while preparing for the cozy, shorter days ahead. This month harmoniously blends the lingering warmth of summer with the onset of autumn's embrace.

Average Daylight Hours in Colleville for September

The chart illustrates the variation in daylight duration in Colleville throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 38m10h 6m11h 55m13h 47m15h 24m16h 14m15h 47m14h 21m12h 33m10h 42m9h 2m8h 10m
Data source: Colleville daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Colleville

As September winds sweep through Colleville, France, they usher in a gentle lull, with an average speed of just 4.2 m/s (9 mph), making it one of the calmest months of the year. Following the brisk summer breezes that peak in May at 5.8 m/s (13 mph), the transition into autumn becomes more tranquil, reflecting a noticeable decline in wind strength. This trend marks a shift from the lively gales of spring and early summer, gradually easing back toward the more spirited winds of October and the coming winter months, which return to about 5.7 m/s (13 mph). Overall, September offers a serene experience, inviting contemplation amidst the tranquil landscape of nature preparing for its seasonal change.

Average September Wind Speed in Colleville

The chart displays monthly wind speed patterns in Colleville, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.76.15.54.85.83.34.34.94.2 m/s5.75.16.2
Data source: Colleville September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Colleville Compares to Other Months

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

In September, the weather tends to be much milder, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 27°C (80°F) and an average of 16°C (62°F). The month experiences moderate precipitation, totaling 83 mm (3.3 in) over about 13 days, with humidity levels around 76%. In contrast, January brings much colder conditions, with temperatures dipping as low as -3°C (26°F) and averaging just 6°C (44°F). The maximum temperature reaches only 14°C (58°F), and precipitation slightly increases to 86 mm (3.4 in) over 14 days, accompanied by higher humidity at 91%. These differences highlight the transition from the warmth of early autumn to the chill of mid-winter. For more details on the January weather, you can check Colleville weather in January.

September and February present contrasting weather patterns, with September typically offering milder temperatures and more variability. In September, temperatures range from a chilly 8°C (47°F) at night to a warm 27°C (80°F) during the day, with an average of 16°C (62°F). In contrast, February experiences colder conditions, with temperatures dipping to a minimum of -4°C (26°F) and reaching a maximum of 15°C (60°F), averaging around 7°C (45°F). Both months receive similar levels of precipitation, averaging around 82-83 mm (3.2-3.3 in), though February is slightly wetter with rain occurring on 14 days compared to September's 13 days. Additionally, February tends to be more humid at 89%, while September has a lower humidity of 76%. For more detailed information on February weather, you can check Colleville weather in February.

In September, the weather typically showcases a moderate range with minimum temperatures around 8°C (47°F) and daytime highs averaging 16°C (62°F), reaching up to 27°C (80°F). The month experiences around 83 mm (3.3 in) of precipitation over approximately 13 days, with humidity levels around 76%. In contrast, March tends to be cooler, with minimum temperatures dropping to -5°C (23°F) and an average of 8°C (47°F), peaking at 22°C (71°F). Precipitation is slightly higher at 86 mm (3.4 in) spread over 17 days, while humidity rises to 85%. For a detailed look at March weather in Colleville, you can visit Colleville weather in March.

September and April present distinct weather patterns, highlighting the transition between seasons. In September, temperatures range from a mild 8°C (47°F) to a warm 27°C (80°F), with an average of 16°C (62°F) and relatively high humidity at 76%. This month also experiences more precipitation, totaling 83 mm (3.3 in) over approximately 13 days. In contrast, April exhibits cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 23°C (73°F), averaging around 10°C (50°F). The month is drier, receiving only 34 mm (1.3 in) of precipitation over 7 days, although the humidity is slightly higher at 84%. For a detailed look at April weather, check out Colleville weather in April.

When comparing the weather in September and May, September tends to be warmer, with average temperatures reaching 16°C (62°F) compared to May's average of 13°C (55°F). The maximum temperature in September can rise to 27°C (80°F), while May peaks at 24°C (75°F). Both months experience similar levels of precipitation, with September receiving 83 mm (3.3 in) and May slightly less at 82 mm (3.2 in), each spread over about 13 days of rain. Additionally, September has a slightly lower humidity level at 76% compared to May's 82%. For more detailed insights, you can check Colleville weather in May.

September and June present a fascinating contrast in weather patterns. While September boasts a similar average temperature of 16°C (62°F) as June, its daily temperature range is notably wider, with maximums reaching 27°C (80°F) compared to June's peak of 31°C (88°F). Additionally, June experiences slightly less precipitation (68 mm or 2.7 in) over fewer days (11) compared to September's 83 mm (3.3 in) across 13 days. Humidity levels are also marginally higher in June at 80%, compared to September's 76%. For those interested in specifics of June's climate, check out Colleville weather in June.

In comparing the weather between September and July, we see notable differences in temperature and precipitation. September has a wider temperature range, with minimums dropping to 8°C (47°F) and maximums reaching 27°C (80°F), while July boasts warmer conditions, with minimums at 12°C (54°F) and maximums soaring to 34°C (94°F). Precipitation is also higher in September, totaling 83 mm (3.3 in) over 13 days, compared to July's 49 mm (1.9 in) spread across 11 days. Interestingly, September has slightly higher humidity at 76%, compared to July's 73%. For a more detailed look at conditions during July, refer to Colleville weather in July.

In September, the weather tends to be cooler than in August, with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 27°C (80°F), compared to August's warmer range of 12°C (53°F) to 31°C (89°F). While September sees slightly more precipitation at 83 mm (3.3 in) over 13 rainy days, August has a similar precipitation level of 76 mm (3.0 in) spread over 14 days. Additionally, September experiences higher humidity levels at 76%, while August maintains a more comfortable 68%. For a more detailed look at August weather, you can visit Colleville weather in August.

September typically enjoys warmer temperatures, with a minimum of 8°C (47°F) and an average of 16°C (62°F), peaking at 27°C (80°F). In contrast, October sees cooler conditions, featuring a minimum of 5°C (41°F) and an average of 14°C (57°F), with a maximum temperature of 23°C (74°F). Additionally, October experiences higher precipitation, measuring 118 mm (4.6 in) over 16 days, compared to September's 83 mm (3.3 in) over 13 days. Humidity also rises in October, reaching 88%, which adds to the overall dampness of the season. For more detailed weather information, visit Colleville weather in October.

September generally offers warmer temperatures, with averages around 16°C (62°F) and maximums peaking at 27°C (80°F), while November sees a notable drop, with an average of just 10°C (49°F) and maximums reaching 18°C (64°F). The precipitation in November, totaling 116 mm (4.6 in) over 16 days, is higher than September's 83 mm (3.3 in) across 13 days, indicating a trend towards wetter conditions as autumn progresses. Furthermore, humidity rises in November to 92%, creating a distinctly more damp atmosphere compared to September's 76%. For detailed information on weather specifics in that month, you can visit Colleville weather in November.

In September, the weather is relatively mild, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 27°C (80°F) and an average of 16°C (62°F). It experiences moderate precipitation of 83 mm (3.3 in) over about 13 days, accompanied by a humidity level of 76%. In contrast, December sees much cooler temperatures, with a minimum of -1°C (31°F) and a maximum of 14°C (57°F), averaging only 8°C (46°F). This month also brings increased precipitation, totaling 162 mm (6.4 in) over 20 days, and higher humidity at 93%. For a closer look at the weather specifics in December, visit Colleville weather in December.

Compare Colleville's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Colleville

As summer transitions into autumn, September in Colleville offers a delightful blend of warmer days and cooler nights, punctuated by occasional rainfall. With temperatures peaking at a pleasant 27°C, this month stands out with its mild average and refreshing nights that dip to 8°C. While rainfall is more frequent, with nearly half the month seeing precipitation, it only adds to the picturesque charm of the area. Overall, September presents a unique weather experience, marked by a comforting humidity level that invites both locals and visitors to enjoy the enchanting landscapes of Normandy. For a comprehensive look at the year-round climate patterns, check out Colleville Climate.