Last updated: March 17, 2025
In September, Brecon, United Kingdom, experiences a dynamic range of temperatures, with highs reaching up to 26°C (80°F) and dipping as low as 1°C (35°F). The average temperature sits comfortably at 13°C (55°F), ideal for enjoying outdoor activities amidst the changing season. However, residents and visitors should be prepared for frequent rain, as the area receives approximately 89 mm (3.5 in) of precipitation over 13 days this month, contributing to a humidity level of 79%. Overall, September in Brecon offers a blend of warmth and moisture, creating a vibrant backdrop for autumn adventures.
As September unfolds in Brecon, United Kingdom, the shift towards autumn becomes evident, bringing a blend of cooler mornings and pleasantly warm afternoons. The month typically starts with a minimum temperature of around 1°C (35°F), rising to an average of 13°C (55°F), and peaking at a comfortable 26°C (80°F). This gradual transition marks a notable increase from the summer's end, where temperatures lingered at a consistent high. With the crispness of autumn in the air, September offers a refreshing change that invites outdoor exploration while still basking in the remnants of summer warmth. Whether enjoying a stroll through the picturesque countryside or attending local events, this month strikes a perfect balance between warm and cool.
September in Brecon brings a moderate 89 mm (3.5 in) of precipitation over approximately 13 days, making it a month where rain remains a constant companion. This amount aligns closely with the summer's average rainfall, creating a smooth transition into the autumn season. As the lush green landscapes begin to shift, September's rainfall is slightly less than August's 113 mm (4.4 in), suggesting a gradual easing of the summer's deluge. This trend reflects a typical pattern as the region shifts from the wetter summer months toward the more intense autumnal downpours expected in October and November, which average 136 mm (5.4 in) and 114 mm (4.5 in)**, respectively. Overall, September serves as a bridge, balancing lingering summer showers with the promise of fall’s richer rains.
As September arrives in Brecon, the humidity starts to shift from the summer's lower levels, settling at 79%. This marks a noticeable increase from August's 73%, indicating that the region is beginning to transition into the wetter months ahead. The humidity levels typically experience a gradual rise throughout the year, peaking in late autumn and winter, with October and November showcasing the highest averages at 89% and 90%, respectively. Despite this uptick, September's humidity still reflects a more comfortable climate compared to the damp chill of winter, making it an ideal time for those who prefer milder conditions. As the year progresses, inhabitants can expect the air to become progressively heavier, a characteristic hallmark of Brecon's atmospheric changes.
As summer transitions into autumn, the UV Index in Brecon, United Kingdom, remains a notable consideration for outdoor enthusiasts. In September, the UV Index stands at 6, placing it in the high exposure category with a burn time of only 25 minutes. This indicates a moderate reduction from the peak 8 during the summer months, but caution is still advisable, especially during midday hours. The trend suggests that while the intensity of UV radiation decreases after the scorching July and August, September still warrants protective measures. With the changing seasons, the importance of being mindful of UV exposure persists. For more detailed insights, check the Brecon UV Index.
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September in Brecon, United Kingdom, boasts 291 hours of glorious sunshine, making it the last hurrah of summer before the days begin to shorten. As the year progresses, the trend shows a gradual increase in sunlight from the dreary winter months, peaking in the vibrant summer of July with a remarkable 403 hours. This downward shift in daylight hours from the summer peak is gentle, transitioning into the warmer autumn hues of the season. The striking contrast of sunshine hours—from a mere 83 hours in January to the vibrant sunlight experienced in June and July—highlights the ever-changing character of Brecon's weather. September offers a delightful blend of extended daylight, providing ample opportunity to soak in the scenic landscapes before the chill of autumn sets in.
In Brecon, United Kingdom, the likelihood of sunny weather in September stands at a modest 20%. This is consistent with the trends seen in the late summer and early autumn months, where the sunshine probability dips slightly after the peak summer month of July, which enjoys a 34% chance of sun. Despite September's relatively lackluster sunshine compared to the springtime highs of 49% in April, it remains on par with August and slightly above both the winter months and early fall. As the year transitions, residents and visitors can expect a mix of cloudy days and opportunities to bask in the sun, embodying the whimsical nature of British weather.
As summer fades into autumn, September in Brecon, United Kingdom, witnesses a notable transition in daylight hours. With an average of 12 hours of daylight, September signals a gradual dimming from the sun-drenched days of summer, where June and July boast a peak of 16 hours. The month acts as a bridge, gently ushering in shorter days as it follows the vibrant warmth of July and the lush greenery of August's 14-hour daylight. This reduction in light prepares the landscape for the cooler months ahead, heralding not just a shift in daily routine but also in the enchanting scenery that characterizes the seasons in this picturesque region.
In September, the winds in Brecon settle into a gentle rhythm, with an average speed of 2.9 m/s (7 mph). This marks a notable dip from the bustling breezes of summer, as the previous months showcase higher wind speeds, particularly July's tranquil 2.6 m/s (6 mph). As autumn approaches, the air begins to cool, and the decreasing wind velocity reflects a subtle transition, preparing the landscape for the vivid colors of fall. Interestingly, September's winds set the stage for a seasonal contrast, as October witnesses a resurgence to 4.2 m/s (9 mph), reigniting the earlier gusts. This ebb and flow not only captures the essence of Brecon's climate but also invites residents and visitors alike to enjoy the briskness of the changing seasons.
The weather in Brecon 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 Brecon and find detailed weather information for every month.
September and January present contrasting weather patterns, with September typically offering milder temperatures and more variability. In September, temperatures range from a minimum of 1°C (35°F) to a maximum of 26°C (80°F), with an average of 13°C (55°F) and a humidity level of 79%. This month also sees about 89 mm (3.5 in) of precipitation over approximately 13 days. In contrast, January features colder conditions, with temperatures ranging from -7°C (19°F) to a maximum of 12°C (54°F) and an average of 4°C (39°F). Despite having slightly less precipitation at 81 mm (3.2 in) over about 12 days, January's humidity climbs to 88%, contributing to a chillier atmosphere. For more detailed insights, you can refer to Brecon weather in January.
September and February present contrasting weather patterns. In September, temperatures range significantly from a minimum of 1°C (35°F) to a pleasant average of 13°C (55°F), peaking at 26°C (80°F). The month sees about 89 mm (3.5 in) of precipitation over 13 days, with humidity levels around 79%. In stark contrast, February experiences much colder conditions, with temperatures dipping as low as -8°C (19°F) and averaging only 4°C (40°F), achieving a maximum of 16°C (60°F). Additionally, February tends to be wetter, with 125 mm (4.9 in) of rain spread over 16 days and higher humidity at 88%. For more insights into February weather, you can check out Brecon weather in February.
When comparing September and March weather, several notable differences emerge. September tends to be warmer, with temperatures ranging from a chilly 1°C (35°F) to a pleasant 26°C (80°F), averaging around 13°C (55°F). This month experiences about 89 mm (3.5 in) of precipitation over approximately 13 days, combined with a humidity level of 79%. In contrast, March is considerably cooler, with temperatures fluctuating from a low of -8°C (18°F) to a high of 18°C (65°F), averaging just 5°C (42°F). It also sees more rainfall, totaling 119 mm (4.7 in) across 17 days and higher humidity at 86%. For a detailed look at March weather specifics, you can visit Brecon weather in March.
Overall, September offers milder weather, while March is characterized by colder temperatures and more frequent precipitation.
September and April showcase distinct weather patterns, reflecting the transition from summer to autumn and winter to spring, respectively. In September, temperatures range from a chilly 1°C (35°F) at night to a warm 26°C (80°F) during the day, averaging around 13°C (55°F). This month also brings higher precipitation levels, with 89 mm (3.5 inches) falling over approximately 13 days, coupled with a humidity of 79%. In contrast, April experiences cooler temperatures, with a minimum of -4°C (26°F) and a maximum of 21°C (69°F), averaging 8°C (46°F). Precipitation in April is less at 65 mm (2.6 inches) over about 10 days, along with slightly higher humidity at 84%. For more detailed information on April weather specifics, you can visit Brecon weather in April.
September and May exhibit noticeable differences in weather patterns, with September generally experiencing milder temperatures. September's temperatures range from a minimum of 1°C (35°F) to a maximum of 26°C (80°F), averaging around 13°C (55°F), while May’s temperatures range slightly cooler, with a minimum of -1°C (30°F) and a maximum of 24°C (76°F), averaging 10°C (51°F). Both months see a similar amount of precipitation, with September receiving 89 mm (3.5 in) and May slightly higher at 97 mm (3.8 in), and each has about 13 rainy days. Interestingly, humidity is nearly equal in both months, hovering around 79% for September and 80% for May. For a more detailed look at May weather specifically, you can check out Brecon weather in May.
When comparing the weather in September and June, both months exhibit mild temperatures, but there are notable differences. September tends to have a slightly broader temperature range, with a minimum of 1°C (35°F), an average of 13°C (55°F), and a maximum of 26°C (80°F). In contrast, June starts off a bit warmer, with minimum temperatures of 4°C (39°F) and a slightly higher maximum of 27°C (81°F).
Precipitation is relatively similar in both months, with September receiving 89 mm (3.5 in) over 13 days and June recording 97 mm (3.8 in) across 16 days. Humidity levels are closely matched as well, with September at 79% and June at 80%. For more detailed insights into June's weather, you can visit Brecon weather in June.
In comparing the weather between September and July, we can see some notable differences. September experiences a wider range of temperatures, with minimums at 1°C (35°F) and maximums reaching 26°C (80°F), while July has milder temperatures, with a minimum of 5°C (41°F) and a maximum of 27°C (81°F). In terms of precipitation, September receives slightly less rainfall at 89 mm (3.5 in) over 13 days compared to July's 93 mm (3.7 in) over 14 days. Additionally, September has a higher humidity level at 79%, in contrast to July's 70%. For more detailed information on July's weather patterns, you can visit Brecon weather in July.
In comparing the weather between September and August, we see a notable shift in temperatures and precipitation. September experiences a wider temperature range, with minimums dropping to 1°C (35°F) and maximums reaching up to 26°C (80°F), whereas August maintains milder conditions with temperatures ranging from 6°C (43°F) to 27°C (82°F). Additionally, September receives slightly less rainfall with 89 mm (3.5 in) over 13 days compared to August's 113 mm (4.4 in) across 17 days. The humidity levels also differ, with September being more humid at 79%, compared to August's 73%. For more detailed insights on August weather, visit Brecon weather in August.
September and October present a noticeable transition in weather patterns. In September, temperatures range from a mild 1°C (35°F) at night to a warm 26°C (80°F) during the day, with an average of 13°C (55°F). The month experiences about 89 mm (3.5 in) of precipitation over 13 days, accompanied by a humidity level of 79%.
In contrast, October brings cooler temperatures, with a minimum of -3°C (26°F) and a maximum of 20°C (69°F), averaging at 10°C (50°F). This month is marked by increased precipitation, totaling 136 mm (5.4 in) over 16 days, and a slight rise in humidity to 89%. This shift highlights the transition into autumnal weather, making October quite different from the warm days of September. For more detailed information, you can check Brecon weather in October.
September offers a mild transition into autumn with temperatures peaking at a comfortable 26°C (80°F) and an average of 13°C (55°F). The month sees about 89 mm (3.5 in) of precipitation across roughly 13 days, with a humidity level of 79%. In contrast, November brings a significant temperature drop, with highs only reaching 14°C (58°F) and an average of 6°C (44°F). Rainfall increases to 114 mm (4.5 in) over about 17 days, accompanied by a higher humidity of 90%. This shift marks a notable change in both temperature and precipitation patterns compared to September. For more details, visit Brecon weather in November.
In September, the weather is considerably milder with temperatures ranging from a minimum of 1°C (35°F) to a maximum of 26°C (80°F), and an average of 13°C (55°F). The month experiences 89 mm (3.5 in) of precipitation over 13 days, accompanied by a humidity level of 79%. In contrast, December brings much colder conditions, with temperatures dipping as low as -8°C (18°F) and averaging 5°C (41°F), peaking at 12°C (53°F). The precipitation increases to 139 mm (5.5 in) across 19 days, and the humidity rises slightly to 89%. For a detailed look at December weather specifics, you can check Brecon weather in December.
As September arrives, Brecon experiences a notable transition in its weather, marking the end of summer warmth and the onset of autumn's chill. While daytime temperatures can peak around 26°C, the average cools substantially to a refreshing 13°C, and nighttime lows can dip to a crisp 1°C. This month is also characterized by increased precipitation, with rain gracing the region on about half of the days, contributing to the lush greenery that defines this beautiful area. The elevated humidity of 79% adds to the sensation of coolness, creating a refreshing atmosphere that is both invigorating and conducive to exploring the stunning landscapes. For a deeper understanding of what to expect throughout the year, check out the detailed insights on Brecon Climate.