September Weather in Saint Andrews, United Kingdom

Last updated: March 17, 2025

In September, Saint Andrews experiences a delightful transition into autumn, characterized by a maximum temperature reaching 22°C (71°F) and an average of 14°C (57°F). The month showcases a refreshing minimum temperature of 5°C (41°F), inviting visitors to embrace the crisp air. With 62 mm (2.4 in) of rainfall spread over 12 days, rain showers can be expected, contributing to the region's lush scenery. The humidity remains notably high at 90%, adding a coastal charm to the atmosphere. Overall, September in Saint Andrews is a captivating blend of mild warmth and invigorating breezes, perfect for exploring this historic marine town.

September Temperature in Saint Andrews

September in Saint Andrews marks a gentle transition into autumn, with temperatures reflecting a mix of lingering summer warmth and the crispness of fall. The month sees minimum temperatures around 5°C (41°F), while average highs reach a comfortable 22°C (71°F), mirroring the previous month but with a drop in nighttime temperatures. This creates a pleasant balance for outdoor exploration, especially as summer's warmth gives way to the vibrant hues of autumn foliage. As the days grow shorter, the average temperature settles at about 14°C (57°F), inviting both residents and visitors to enjoy the stunning coastal views and the historic charm of this iconic town before the chill of October sets in.

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

The chart illustrates September temperature patterns in Saint Andrews, 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 Andrews 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 Saint Andrews

In September, Saint Andrews experiences moderate precipitation with an average of 62 mm (2.4 in) of rainfall spread across 12 days. This places September on a similar level to the earlier summer months, such as July and August, which recorded 71 mm and 82 mm, respectively. However, as autumn sets in, rainfall tends to increase once more, with October looming at 103 mm (4.0 in), suggesting a trend of escalating precipitation as the year progresses. While September's weather remains relatively mild compared to the heavier downpours expected in the coming months, it marks a transition point from the summer's warmth to the chillier, wetter days of fall.

September Precipitation Trends in Saint Andrews

The chart displays monthly precipitation patterns in Saint Andrews, 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.
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September Humidity in Saint Andrews

September in Saint Andrews, United Kingdom, marks a notable shift in humidity levels, reaching 90%, which is the highest for the month. This increase continues the trend of rising humidity from the summer months, where it hovered around 86% in both July and August. As autumn approaches, the humidity levels gradually climb further, peaking in October at 91% and continuing to rise into November, which records 92%. This pattern reflects a seasonal transition, as the air becomes heavier with moisture, likely influenced by the changing weather conditions typical of the fall season. The slight dip in humidity during the warmer spring months, where it reached a low of 82% in May, contrasts sharply with the dampness found as summer ends, highlighting the unique climatic rhythm of Saint Andrews throughout the year.

September Average Humidity in Saint Andrews

This chart illustrates the average monthly humidity levels in Saint Andrews, 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 Andrews

In September, Saint Andrews, United Kingdom, experiences a moderate UV Index of 5, signaling the importance of sun protection during outdoor activities. As summer fades, this month marks a gradual decline from the peak UV levels seen in the height of summer—July and August recorded higher indices of 7 and 6 respectively. With a burn time of 30 minutes, September’s UV exposure calls for a balanced approach to enjoying the outdoors while remaining mindful of skin safety. As the UV Index begins to lower, it provides a gentle reminder for residents and visitors alike to adapt their sun-care routines. For more insights on UV levels throughout the year, visit Saint Andrews UV Index.

Maximum UV Index Levels in Saint Andrews for September

The chart shows the monthly maximum UV Index (UVI) for Saint Andrews 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 Andrews 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 Andrews

As September unfolds in Saint Andrews, the transition from summer to autumn is marked by a respectable 305 hours of sunshine, reflecting a decline from the peak brightness of July and August. This month stands as a bridge between the sun-drenched days of summer, when residents enjoyed 420 hours in July and 375 hours in August, and the cooler months ahead, which bring a significant reduction in daylight. Following the vibrant spring and summer months, where light flourished with 412 hours in May and 344 in April, September's sunshine is still impressive, albeit a gentle reminder of the ebbing warmth. The trends clearly highlight how the sun sheds its summer glory, paving the way for the cozy, crisp days of fall, where daylight dwindles dramatically in October with just 221 hours and continues to decline as the year draws to a close.

Monthly Sunshine Duration in Saint Andrews: September Highlighted

The September sunshine duration represents the total number of hours Saint Andrews 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 Andrews September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Saint Andrews During September

In Saint Andrews, September marks a transition into autumn, reflected in a 22% chance of sun, which is notably lower than the spring and summer months. This decline is part of a broader trend where the likelihood of sunny days wanes as the year progresses, following a peak of 49% in April. Despite the cooler temperatures setting in, September still offers the potential for pleasant days, though residents and visitors should be prepared for the increased chance of rain and overcast skies as summer slips away. As autumn approaches, the unpredictability of the weather becomes more pronounced, making those rare sunny days all the more cherished.

Percentage of Sunny Days in September in Saint Andrews

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

Daylight Hours in Saint Andrews in September

As September arrives in Saint Andrews, the summer days begin to wane, with daylight duration gradually tapering to a wholesome 12 hours. Following a vibrant peak in June, where the sun graced the sky for an impressive 17 hours, the transition into autumn is evident. This month serves as a bridge between the long, sun-filled days of summer and the shorter, crisper days of fall, with October bringing a modest decline to 10 hours. September's blend of light allows for continued outdoor enjoyment, while hinting at the cozy, darker evenings to come as nature prepares for the seasonal shift.

Average Daylight Hours in Saint Andrews for September

The chart illustrates the variation in daylight duration in Saint Andrews 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 Andrews daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Saint Andrews

As September arrives in Saint Andrews, the average wind speed settles at 4.1 m/s (9 mph), reflecting a slight increase from the preceding summer months. This gentle breeze, while mild compared to the brisk winds of winter, provides a refreshing transition into autumn. Notably, September's winds are a precursor to the uptick in speed that follows in October and November, where gusts reach 5.7 m/s (13 mph) and 6.4 m/s (14 mph) respectively. This gradual rise not only signals the approach of chillier days but also enhances the region's picturesque coastal charm, making it an ideal time for walks along the beach or enjoying a round of golf amidst the shifting seasons.

Average September Wind Speed in Saint Andrews

The chart displays monthly wind speed patterns in Saint Andrews, 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 Andrews September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Saint Andrews Compares to Other Months

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

September and January in Saint Andrews present contrasting 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) and 62 mm (2.4 in) of precipitation over approximately 12 days. The humidity is notably high at 90%, creating a warm and damp atmosphere. In contrast, January experiences colder conditions, with temperatures dipping as low as -3°C (27°F) and averaging 5°C (42°F). The maximum temperature reaches 14°C (57°F), but with lower precipitation of 48 mm (1.9 in) spread over about 10 days. Humidity remains similar at 89%, but the overall chill of January is palpable. For more detailed information, check out Saint Andrews weather in January.

In comparing the weather between September and February, there are notable differences. September typically enjoys milder temperatures, with averages around 14°C (57°F) and highs reaching up to 22°C (71°F), while February tends to be much cooler, averaging just 6°C (42°F) with maximum temperatures of 14°C (57°F). Precipitation levels also differ, with September receiving about 62 mm (2.4 in) over 12 rainy days compared to February’s 77 mm (3.0 in) over 14 days. Humidity remains relatively high in both months, at 90% in September and 88% in February, creating a rather damp experience. For more details on February weather in Saint Andrews, check out Saint Andrews weather in February.

In comparing the weather between September and March, we see notable differences in temperature and conditions. September experiences a milder climate, with temperatures ranging from a minimum of 5°C (41°F) to a pleasant maximum of 22°C (71°F), while March is significantly cooler, with temperatures dipping to a minimum of -2°C (28°F) and peaking at 15°C (59°F). Both months witness comparable amounts of precipitation, 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 remain relatively high in both months, at 90% in September and 86% in March, contributing to a cool and damp environment during early spring. For more specific insights into March weather, you can refer to Saint Andrews weather in March.

In comparing the weather between September and April, we can see a notable difference in temperatures and precipitation patterns. September boasts a milder range with minimums around 5°C (41°F) and maximums reaching up to 22°C (71°F), resulting in an average temperature of 14°C (57°F). This month also experiences higher humidity at 90% and more substantial rainfall, totaling 62 mm (2.4 in) over approximately 12 days. In contrast, April has cooler averages, with temperatures ranging from a minimum of -2°C (29°F) to a maximum of 19°C (67°F), and an average of 8°C (46°F). Additionally, April offers less precipitation, totaling 29 mm (1.1 in) over 7 days and slightly lower humidity at 84%. For more detailed insights into the climatic conditions in April, you can check Saint Andrews weather in April.

September and May present distinct weather patterns, with September displaying a slightly warmer climate. In September, temperatures range from a minimum of 5°C (41°F) to a maximum of 22°C (71°F), averaging around 14°C (57°F). This month also experiences higher humidity at 90% and a bit more rainfall, amounting to 62 mm (2.4 in) over approximately 12 days. In contrast, May offers cooler temperatures, with a minimum of 2°C (36°F) and a maximum of 21°C (71°F), averaging 11°C (52°F). Rainfall is slightly less at 57 mm (2.2 in) across 10 days, and the humidity is relatively lower at 82%. For more detailed insights, check out Saint Andrews weather in May.

In comparing the weather of September and June, both months exhibit similar maximum temperatures, with highs around 22°C (72°F), creating a comfortable atmosphere for outdoor activities. However, September tends to be slightly warmer on average, with a mean temperature of 14°C (57°F) compared to June's 13°C (56°F). Precipitation levels are notably higher in June, totaling 76 mm (3.0 in) over 12 days, versus September's 62 mm (2.4 in) also over 12 days. Additionally, September features a higher humidity level at 90%, compared to June's 84%, which can contribute to a muggier feel in the early autumn. For a deeper insight into June's specific weather conditions, check out Saint Andrews weather in June.

In comparing the weather of September and July, one can observe distinct contrasts. September typically experiences cooler temperatures, with a minimum of 5°C (41°F) and an average of 14°C (57°F), while July enjoys warmer conditions, with a minimum of 10°C (49°F) and an average of 16°C (60°F). Furthermore, the maximum temperature in July reaches 24°C (76°F), contrasting with September's high of 22°C (71°F). Precipitation levels also vary, with September recording 62 mm (2.4 in) over 12 days, compared to July's higher total of 71 mm (2.8 in) across 14 days. Despite this slight increase in precipitation, July's humidity level at 86% is lower than September's 90%, contributing to a relatively more comfortable feeling during the summer month. For more details on July weather, you can check out Saint Andrews weather in July.

In comparing the weather between August and September, we see that September's temperatures are slightly cooler, with a minimum of 5°C (41°F) and an average of 14°C (57°F), compared to August's minimum of 8°C (47°F) and average of 15°C (60°F). Both months experience similar maximum temperatures, peaking at around 22°C (72°F). However, September sees less precipitation overall, totaling 62 mm (2.4 in) over 12 days, while August has higher precipitation levels of 82 mm (3.2 in) over 14 days. Additionally, September is slightly more humid with an average humidity of 90%, compared to August's 86%. For a more detailed look at August weather patterns, visit Saint Andrews weather in August.

September and October display a noticeable transition in weather patterns. In September, temperatures range from a mild 5°C (41°F) to a pleasant maximum of 22°C (71°F), with an average of 14°C (57°F). The month experiences around 62 mm (2.4 in) of precipitation over 12 days, with humidity levels at 90%. In contrast, October sees a dip in temperatures, with minimums dropping to 2°C (36°F) and maximums reaching 18°C (64°F), averaging 11°C (52°F). Rainfall increases to 103 mm (4.0 in) spread over 15 days, accompanied by a slight rise in humidity to 91%. For a closer look at October's weather specifics, you can visit Saint Andrews weather in October.

September typically offers milder weather compared to November, with average temperatures ranging from a minimum of 5°C (41°F) to a maximum of 22°C (71°F). In contrast, November sees a significant drop in temperatures, with averages between -2°C (29°F) and 15°C (59°F). Additionally, September experiences less precipitation, totaling 62 mm (2.4 in) over approximately 12 days, while November receives more rainfall, averaging 80 mm (3.1 in) across 14 days, coupled with slightly higher humidity levels at 92%. For a closer look at November's weather conditions, you can visit Saint Andrews weather in November.

September and December present a stark contrast in weather conditions. In September, temperatures range from a mild 5°C (41°F) to a pleasant 22°C (71°F) with an average of around 14°C (57°F). The month experiences about 62 mm (2.4 in) of precipitation over 12 rainy days, accompanied by high humidity at 90%.

In contrast, December sees a significant drop in temperatures, with a minimum of -4°C (26°F) and a maximum of 13°C (56°F), averaging just 6°C (43°F). Precipitation increases to 80 mm (3.2 in), occurring over 14 days, while humidity remains slightly lower at 88%. For more details on the winter weather, visit Saint Andrews weather in December.

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Conclusion: What to Expect From September Weather in Saint Andrews

As September rolls in, Saint Andrews experiences a transitional shift from the warmth of summer to the cooler embrace of autumn. Average temperatures begin to dip, offering a refreshing contrast with the delightful yet mild days, while the likelihood of rain increases, bringing a touch of moisture to the air. With high humidity often hovering around 90%, the atmosphere can feel quite different compared to the drier summer months. Nevertheless, the unique charm of September, layered with gentle breezes and the vibrant colors of changing foliage, invites visitors to revel in its beauty. For a comprehensive understanding of the seasonal variations throughout the year, explore more about the area at Saint Andrews Climate.