September Weather in Saint Monans, United Kingdom

Last updated: March 17, 2025

In Saint Monans, United Kingdom, September brings a delightful mix of temperatures, with a maximum reaching 22°C (71°F) and an average of 14°C (57°F). The month features cooler nights with a minimum temperature of 5°C (41°F), perfect for cozy evenings. While September is relatively wet, accumulating 62 mm (2.4 in) of rainfall over 12 days, the high humidity at 90% adds a refreshing coastal atmosphere. Expect to experience the transition of summer into autumn, making it a picturesque time to visit this charming seaside village.

September Temperature in Saint Monans

As September arrives in Saint Monans, the temperatures begin to hint at the transition into autumn. With a minimum temperature of 5°C (41°F) and a comfortable average of 14°C (57°F), the weather remains mild compared to the cooler months that follow. The maximum temperatures soar to a pleasant 22°C (71°F), offering a final glimpse of summer's warmth. This month marks a gentle shift from the balmy heights of summer, evident in the slight drop from August’s figures, yet it retains enough warmth for outdoor activities and scenic walks along the coast. Overall, September in Saint Monans presents a delightful blend of summer's fading warmth and the fresh, crisp air that heralds the autumn season.

September Weather in Saint Monans: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Saint Monans, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec424244465256605956524643
Data source: Temperature data for Saint Monans generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Saint Monans

September in Saint Monans, United Kingdom, brings a mild shift in weather, with precipitation totaling 62 mm (2.4 in) over 12 days. This month sees a slight dip from August's 82 mm (3.2 in), yet it still retains a significant presence of rain typical for the early autumn months. While the frequency of rainy days remains consistent, the overall volume suggests a gradual transition towards the wetter conditions expected in October, which normally experiences one of the year’s heaviest downpours at 103 mm (4.0 in). This pattern highlights a recurring trend as the region prepares for the inevitable onset of more substantial autumn rains.

September Precipitation Trends in Saint Monans

The chart displays monthly precipitation patterns in Saint Monans, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4877652957767182621038080
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Saint Monans

As September arrives in Saint Monans, United Kingdom, the air thickens with a notable 90% humidity, marking a peak in moisture levels for the year. This month showcases a slight increase compared to the preceding summer months, where humidity remained steady at 86% during July and August. The trend is clear: as summer fades and autumn takes hold, humidity levels begin their ascent, ultimately leading into the wetter months of October and November, where they rise to 91% and 92% respectively. This gradual buildup of moisture creates an atmosphere that feels rich and lush, a reminder of the transition to the cooler, wetter seasons ahead.

September Average Humidity in Saint Monans

This chart illustrates the average monthly humidity levels in Saint Monans, 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.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%84%82%84%86%86%90%91%92%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Saint Monans

As September rolls into Saint Monans, the UV Index reflects a transition towards milder conditions, registering at 5, which falls into the moderate exposure category. This means that while sunburn risk remains present, it generally allows for about 30 minutes of safe sun exposure for most skin types. Compared to the peak summer months where the index soared to a very high of 8 in June, September's UV levels encourage outdoor enjoyment without the overwhelming intensity of high summer. As daylight begins to wane and temperatures cool, this month offers a balanced blend of sunshine that invites both leisurely strolls and outdoor activities while still being mindful of UV exposure. For more detailed insights on UV levels throughout the year, visit Saint Monans UV Index.

Maximum UV Index Levels in Saint Monans for September

The chart shows the monthly maximum UV Index (UVI) for Saint Monans 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.
JanFebMarAprMayJunJulAugSepOctNovDec123568765311
Data source: Saint Monans 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 Saint Monans

As the summer winds down, September in Saint Monans brings a delightful embrace of sunshine, accumulating 305 hours of bright light throughout the month. This marks a slight decline from the sun-soaked heights of July and August, where residents enjoyed 420 and 375 hours respectively. However, September's sunshine still outshines the dreariness awaiting in the colder months, with the promise of autumn's gentle glow. The month serves as a beautiful transition, basking in the lingering warmth before the hours taper off into the shorter days of October, which sees a notable drop to 221 hours. It's a time when the vibrant coastal scenery of Saint Monans can be enjoyed under the softer rays, creating lasting memories against a backdrop of changing foliage.

Monthly Sunshine Duration in Saint Monans: September Highlighted

The September sunshine duration represents the total number of hours Saint Monans 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.
JanFebMarAprMayJunJulAugSepOctNovDec86h142h218h344h412h396h420h375h305h221h116h86h
Data source: Saint Monans September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Saint Monans During September

As September rolls in, Saint Monans experiences a notable dip in sunny weather, with the likelihood of sunshine dropping to 22%. This trend marks one of the lowest probabilities for the year, surpassing only the grim prospects found in February and December. After a brief surge of optimism in April, when sunny chances nearly doubled to 49%, the onset of autumn signals shorter days and cloudier skies. The decreasing chance of sun in September, following a summer where sunshine hovered around the low 30s, underscores the transition toward the cooler and gloomier months, making those intermittent sunny days all the more precious.

Percentage of Sunny Days in September in Saint Monans

The chart illustrates the percentage of sunny days in Saint Monans 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 Saint Monans experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec31%27%25%49%29%27%30%26%22%22%35%21%
Data source: Saint Monans September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Saint Monans in September

As September unfolds in Saint Monans, the daylight begins to wane, offering approximately 12 hours of light each day. This gradual decrease follows the peak of summer, where June dazzled with an impressive 17 hours of sunshine. As we transition from the vibrant warmth of summer, the daylight dips steadily from July to October, marking a shift toward the shorter days of autumn and winter. While September retains a respectable amount of light, it signals the start of this seasonal change, inviting a palette of rich autumn hues and cozy evenings as the year presses on.

Average Daylight Hours in Saint Monans for September

The chart illustrates the variation in daylight duration in Saint Monans throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 38m9h 34m11h 53m14h 15m16h 23m17h 32m16h 55m14h 59m12h 41m10h 20m8h 10m6h 59m
Data source: Saint Monans daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Saint Monans

As September settles in Saint Monans, the wind begins to pick up slightly, with an average speed of 4.1 m/s (9 mph), marking a gentle shift from the calmer breezes of summer. Following the quiet, warmer months of July and August, which saw wind speeds as low as 3.1 m/s (7 mph), September brings a breath of fresh air, teasing the more robust gusts that will arrive in autumn. The transition reflects a broader trend: while winter months typically see increased wind speeds, September serves as a delightful bridge, maintaining a sense of tranquility while hinting at the invigorating winds that lie ahead. With each passing day, the landscape of Saint Monans dances in the gentle embrace of an autumn breeze, inviting residents and visitors alike to enjoy the changing season.

Average September Wind Speed in Saint Monans

The chart displays monthly wind speed patterns in Saint Monans, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.17.25.64.04.04.53.13.54.1 m/s5.76.45.2
Data source: Saint Monans September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Saint Monans Compares to Other Months

The weather in Saint Monans 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 Saint Monans and find detailed weather information for every month.

September and January present contrasting weather conditions. In September, temperatures range from a mild 5°C (41°F) to a pleasant 22°C (71°F), with an average of 14°C (57°F). The month sees significant rainfall, accumulating to 62 mm (2.4 in) over about 12 days, accompanied by relatively high humidity at 90%. In stark contrast, January experiences colder temperatures, with minimums dipping to -3°C (27°F) and a daily average of just 5°C (42°F). Although it is cooler, precipitation is slightly lower at 48 mm (1.9 in), spread over 10 days, and humidity remains comparable at 89%. For more details on January weather, visit Saint Monans weather in January.

September and February present stark contrasts in weather conditions. September tends to be milder, with temperatures ranging from a minimum of 5°C (41°F) to a pleasant average of 14°C (57°F), peaking at 22°C (71°F). This month also experiences around 62 mm (2.4 in) of precipitation over 12 days, accompanied by high humidity at 90%. In contrast, February is much colder, with temperatures dipping to a minimum of -5°C (23°F) and averaging only 6°C (42°F), reaching a maximum of 14°C (57°F). Precipitation increases to 77 mm (3.0 in) over 14 days, with humidity slightly lower at 88%. For a detailed look at February weather specifics, you can refer to Saint Monans weather in February.

When comparing the weather in September and March, notable differences emerge. September typically enjoys milder temperatures, with a minimum of 5°C (41°F) and an average of 14°C (57°F), while March sees cooler conditions with a minimum of -2°C (28°F) and an average of 7°C (44°F). Both months experience similar precipitation levels, with September recording 62 mm (2.4 in) over 12 days and March slightly higher at 64 mm (2.5 in) over 13 days. Humidity levels in September are a bit higher at 90%, compared to March’s 86%. For more detailed insights, you can check Saint Monans weather in March.

When comparing the weather in September and April, it's clear that September tends to be warmer overall. In September, temperatures range from a minimum of 5°C (41°F) to a maximum of 22°C (71°F), with an average of 14°C (57°F). The month also experiences higher humidity at 90% and more precipitation, with 62 mm (2.4 in) over 12 days. In contrast, April features cooler temperatures, ranging from a minimum of -2°C (29°F) to a maximum of 19°C (67°F), averaging 8°C (46°F). Additionally, it has less moisture, with only 29 mm (1.1 in) of precipitation over 7 days and slightly lower humidity at 84%. For a more detailed look at April conditions, you can visit Saint Monans weather in April.

When comparing the weather in September to that of May, there are some notable differences. September generally experiences a wider temperature range, with minimums of 5°C (41°F) and maximums reaching 22°C (71°F), resulting in an average temperature of 14°C (57°F). In contrast, May's temperatures are slightly cooler, with a minimum of 2°C (36°F), an average of 11°C (52°F), and a maximum of 21°C (71°F). In terms of precipitation, September sees about 62 mm (2.4 in) over 12 days, while May has less rainfall at 57 mm (2.2 in) spread over 10 days, leading to slightly lower humidity levels in May at 82% compared to 90% in September. For more detailed information on May weather in Saint Monans, you can check Saint Monans weather in May.

When comparing the weather in September and June, both months show similar maximum temperatures, peaking at around 22°C (72°F). However, September generally features slightly cooler average temperatures, ranging from a minimum of 5°C (41°F) to an average of 14°C (57°F), while June sees a minimum of 6°C (43°F) and an average of 13°C (56°F). Precipitation is higher in June, with 76 mm (3.0 in) over 12 days compared to September's 62 mm (2.4 in) over the same number of days. Additionally, September has a higher humidity level at 90%, compared to June’s humidity of 84%. For more detailed information about June weather, you can visit Saint Monans weather in June.

September and July exhibit distinct weather patterns, highlighting the transition from summer to autumn. In September, temperatures range from a minimum of 5°C (41°F) to a maximum of 22°C (71°F), with an average of 14°C (57°F). This month sees a total precipitation of 62 mm (2.4 in) over approximately 12 days and maintains a high humidity level of 90%. In contrast, July experiences warmer conditions with temperatures ranging from a minimum of 10°C (49°F) to a maximum of 24°C (76°F), averaging 16°C (60°F). Precipitation in July is slightly higher at 71 mm (2.8 in), spread across about 14 days, and the humidity is a bit lower at 86%. For a detailed look at July weather, check out Saint Monans weather in July.

Comparing the weather in September to August reveals some notable differences. September experiences a slightly cooler temperature range, with minimums dropping to 5°C (41°F) compared to August's 8°C (47°F). The average temperatures are similar, with September averaging 14°C (57°F) and August at 15°C (60°F), while both months reach a maximum of 22°C (71°F). Precipitation is also higher in August, totaling 82 mm (3.2 in) over 14 days, compared to September's 62 mm (2.4 in) over 12 days. Humidity levels remain relatively high in both months, but September sees a slight increase to 90% compared to August's 86%. For more detailed insights, you can check the Saint Monans weather in August.

September and October exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 5°C (41°F) to a maximum of 22°C (71°F), with an average of 14°C (57°F). The month experiences 62 mm (2.4 in) of precipitation over 12 days, and humidity levels hover around 90%. In contrast, October sees a decline in temperatures, with minimums dropping to 2°C (36°F) and maximums to 18°C (64°F), resulting in an average of 11°C (52°F). Precipitation increases to 103 mm (4.0 in) across 15 days, while humidity rises slightly to 91%. For more insights on the weather specifics, you can check Saint Monans weather in October.

September and November showcase a noticeable shift in weather patterns. In September, temperatures range from a mild 5°C (41°F) to a comfortable maximum of 22°C (71°F), with an average of 14°C (57°F). The month experiences about 62 mm (2.4 in) of precipitation over 12 days, while humidity hovers at a relatively high 90%. In contrast, November brings a drop in temperatures, with minimums hitting -2°C (29°F) and averages around 8°C (47°F), peaking at 15°C (59°F). Precipitation increases to 80 mm (3.1 in) over 14 days, accompanied by a slightly higher humidity level of 92%. For a detailed look at November weather specifics, you can visit Saint Monans weather in November.

The weather in September is generally milder, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 22°C (71°F), averaging around 14°C (57°F). It experiences a fair amount of precipitation, totaling 62 mm (2.4 in) over approximately 12 days, coupled with relatively high humidity at 90%. In contrast, December brings cooler conditions, with temperatures dropping to a minimum of -4°C (26°F) and a maximum of 13°C (56°F), averaging only 6°C (43°F). This month sees an increase in precipitation to 80 mm (3.2 in) across 14 days, while humidity remains close at 88%. For more detailed insights, you can visit Saint Monans weather in December.

Compare Saint Monans's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Saint Monans

September in Saint Monans marks a notable transition in weather, with temperatures beginning to cool as summer recedes. The crisp air is often accompanied by a charming blend of sunshine and rain, leading to an average humidity of 90% that can feel refreshing yet damp. Unlike the warmer summer months, September typically experiences more precipitation, with rain gracing around 12 days of the month. This delightful combination of mild conditions creates a perfect backdrop for enjoying the scenic beauty of the area. To learn more about how Saint Monans’ climate shapes its unique character throughout the year, visit Saint Monans Climate.