Last updated: March 17, 2025
September in Winchester, United Kingdom, offers a delightful yet variable mix of weather. With maximum temperatures reaching 28°C (82°F), the month can still feel quite summery, while the average temperature of 15°C (59°F) provides a pleasant balance. Expect a dip in the evenings, as temperatures can fall to a minimum of 2°C (36°F). Rainfall is a reliable companion with an average of 48 mm (1.9 in) over 9 days, contributing to the region's lush greenery. Humidity levels hover around 82%, enhancing the crispness of early autumn air. As summer fades, Winchester's September weather serves as a beautiful transition into fall.
In September, Winchester experiences a delightful transition towards autumn, characterized by a noticeable drop in temperatures compared to the summer months. With minimums dipping to 2°C (36°F) and comfortable highs reaching 28°C (82°F), the month offers a refreshing change. The average temperature settles around 15°C (59°F), making it an ideal time for outdoor activities and enjoying the vibrant fall foliage. As daylight begins to wane, September serves as a perfect bridge, blending the warmth of summer with the crispness of autumn, inviting residents and visitors alike to relish in the shifting seasons.
In September, Winchester experiences a transitional phase in its weather, marked by a notable decrease in precipitation compared to the summer months. With an average of 48 mm (1.9 in) of rain spread over just 9 days, the month brings a welcome relief from the heavier downpours typical of August, which recorded 72 mm (2.8 in). This pattern is consistent with the general trend observed from April onwards, where rainfall fluctuates, but September remains one of the driest months leading into the wetter fall season. As the autumn leaves begin to fall, the gradual shift prepares Winchester for the more robust October showers, expected to deliver a striking 102 mm (4.0 in) of rain over 13 days.
In September, Winchester experiences a notable shift in humidity, with levels averaging 82%. This figure sits slightly higher than the preceding summer months, where July and August recorded 71% and 76%, respectively, suggesting a gradual transition into the wetter autumn season. As the year progresses, humidity levels are on the rise, especially as they soar to 90% in October and peak at 92% by November and December. The trend indicates that September serves as a crucial turning point, bridging the drier warmth of summer with the increasing moisture of fall. Thus, while the air starts to cool, residents can expect a subtle uptick in humidity as nature readies itself for the impending seasonal shift.
As September arrives in Winchester, the UV Index settles at a high level of 6, maintaining a burn time of 25 minutes under the sun. This reflects a notable trend as summer transitions into autumn, with the UV Index gradually declining from a peak of 8 in July and June to this month’s levels. Although the intensity of the sun has decreased, it still warrants caution; adequate sun protection remains essential to prevent skin damage as the days get shorter. With October ushering in a further dip to a moderate UV Index of 4, it's clear that while the summer sun fades, September still requires awareness for safe outdoor enjoyment. For more detailed insights, visit Winchester UV Index.
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In September, Winchester basks in a delightful 299 hours of sunshine, making it a time of transition as summer gently gives way to autumn. This month stands out with a substantially warmer glow compared to the dreary depths of winter, where January sees a mere 100 hours. The gradual increase in sunlight from January through to July peaks at 402 hours in July, showcasing the vibrant summer months. However, as the days of September unfold, the sunshine begins to wane, though the total remains remarkably robust, laying a bright foundation for the cooler months ahead. As October approaches, the sun's presence dwindles to 239 hours, but September’s warmth serves as a beautiful prelude to the more subdued seasons that follow.
September in Winchester sees a 30% chance of sunny weather, a slight increase compared to the summer months, which hover around 28%. This modest likelihood reflects a transition from the typically warmer, sunnier days of late summer back into the cooler autumn season. The peak sunshine months occur in April, boasting a robust 55% chance, whereas early autumn maintains a relatively consistent pattern with September trailing closely behind the more variable summer months. As the year progresses, the probability tends to dip again, especially into the gloomier winter months, reminding us that while September offers some sunshine, it also heralds the onset of the wetter season ahead.
As summer fades, September in Winchester, United Kingdom, brings a graceful transition in daylight duration, offering about 12 hours of daylight. Following the long, sun-soaked days of June and July, the light begins to wane, marking a gradual shift towards autumn. This month strikes a balance, benefiting from the lingering warmth of summer while heralding the cooler days ahead. Compared to the vibrant 15 hours in May and 16 hours in June, September invites residents to relish those longer evenings, where twilight lingers just a bit longer. As the month progresses, the hours of daylight will continue to dip, indicating a changing season and encouraging everyone to seize the last golden rays of summer before the shorter days of autumn settle in.
As the summer winds down in Winchester, September greets us with a gentle breeze, averaging 3.3 m/s (7 mph). This marks a slight decrease from the more animated gusts of August, which hovered at 3.7 m/s (8 mph). Notably, September's winds align with the quieter months of June and July, showcasing a transition as the season shifts. When we look back, it's evident that the lighter winds of autumn set the stage for more dynamic conditions in October, where averages return to 4.3 m/s (10 mph). Thus, September serves as a serene prelude, hinting at the forthcoming briskness of fall.
The weather in Winchester 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 Winchester and find detailed weather information for every month.
September and January display contrasting weather conditions. In September, the temperatures range from a minimum of 2°C (36°F) to a maximum of 28°C (82°F), providing an average warm climate of 15°C (59°F). With 48 mm (1.9 in) of precipitation over approximately 9 days, the humidity sits at a comfortable 82%. In contrast, January brings chillier weather, with temperatures varying between a minimum of -4°C (25°F) and a maximum of 14°C (57°F), averaging just 5°C (41°F). This month experiences slightly higher precipitation at 53 mm (2.1 in) over 10 days, alongside increased humidity at 91%. For more details on this month’s specific weather patterns, check out Winchester weather in January.
September and February present contrasting weather patterns. In September, temperatures range from a mild 2°C (36°F) at night to a warm 28°C (82°F) during the day, with an average of 15°C (59°F). The month sees about 48 mm (1.9 in) of precipitation, spread over 9 days, while humidity levels are relatively high at 82%. In contrast, February experiences colder temperatures, with minimums plummeting to -9°C (15°F) and maximums reaching only 17°C (63°F), averaging around 6°C (43°F). Precipitation increases slightly to 59 mm (2.3 in) over 11 days, and the humidity is even higher at 89%. For a detailed look at February weather, you can check Winchester weather in February.
September and March present contrasting weather patterns. In September, temperatures typically range from a chilly 2°C (36°F) at night to a warm 28°C (82°F) during the day, with an average of 15°C (59°F). The month experiences moderate precipitation of 48 mm (1.9 in) over 9 days, accompanied by a humidity level of 82%. In stark contrast, March sees cooler conditions, with temperatures dipping as low as -6°C (21°F) at night and reaching a maximum of 20°C (69°F) during the day, averaging at 8°C (46°F). It's a wetter month, too, with 68 mm (2.7 in) of rain spread over 13 days and slightly higher humidity at 86%. For more details on the weather, check out Winchester weather in March.
In September, the weather is notably warmer, with average temperatures ranging from a minimum of 2°C (36°F) to a maximum of 28°C (82°F), while April experiences cooler temperatures, with a minimum of -3°C (27°F) and a maximum of 25°C (77°F). The humidity levels are slightly higher in April at 85%, compared to 82% in September, which can make the cooler temperatures feel a bit more biting. Additionally, September sees more precipitation, with 48 mm (1.9 in) over 9 days, whereas April has slightly less at 38 mm (1.5 in) across 8 days. For more detailed information, you can check Winchester weather in April.
September enjoys a wider temperature range compared to May, with a minimum of 2°C (36°F) and a maximum that can reach up to 28°C (82°F), averaging 15°C (59°F). In contrast, May sees slightly cooler weather, starting at a minimum of 1°C (33°F) and peaking at 26°C (79°F) with an average of 13°C (55°F). Precipitation is also notable in both months, with September receiving 48 mm (1.9 in) over 9 days and May having higher rainfall at 80 mm (3.2 in) across 11 days. Humidity levels are similar, with September at 82% and May slightly lower at 79%. For a deeper dive into May's climate, check out Winchester weather in May.
September and June present distinct weather patterns. September experiences a broader temperature range, with a minimum of 2°C (36°F) and a maximum of 28°C (82°F), averaging around 15°C (59°F) and accompanied by 48 mm (1.9 in) of rainfall over approximately 9 days. In contrast, June tends to be slightly warmer, with temperatures ranging from a minimum of 6°C (44°F) to a maximum of 31°C (88°F), averaging 16°C (61°F) and receiving more substantial precipitation of 89 mm (3.5 in) over about 10 days. Humidity levels are comparable, with September at 82% and June slightly lower at 80%. For more details on June's weather, you can refer to Winchester weather in June.
In comparing the weather of September and July, September tends to be cooler, with minimum temperatures starting at 2°C (36°F) and maximums reaching 28°C (82°F), while July showcases a warmer range, with minimums of 7°C (46°F) and maximums up to 32°C (91°F). The average temperature in September is a mild 15°C (59°F), compared to 18°C (65°F) in July. Additionally, September experiences a bit more rainfall, with 48 mm (1.9 in) over approximately 9 days, in contrast to July's 63 mm (2.5 in) spread over 11 days. Humidity levels are also higher in September at 82%, compared to July's more comfortable 71%. For a detailed look at July weather specifically, you can visit Winchester weather in July.
September's weather shows a notable shift from August, with cooler temperatures overall. The minimum temperature in September drops to 2°C (36°F), compared to August's milder 7°C (45°F), while the average temperature in September is slightly lower at 15°C (59°F) compared to 17°C (63°F) in August. Maximum temperatures also decrease, peaking at 28°C (82°F) in September versus 32°C (90°F) in August. Additionally, September experiences more rainfall, totaling 48 mm (1.9 in) over 9 days, compared to 72 mm (2.8 in) over 13 days in August, though the humidity remains higher in September at 82%, compared to 76% in August. For a more detailed look at August weather, you can visit Winchester weather in August.
In September, the weather is generally warmer, with average temperatures ranging from a minimum of 2°C (36°F) to a maximum of 28°C (82°F), leading to a comfortable average of 15°C (59°F). Precipitation is relatively low at 48 mm (1.9 in) and spreads over about 9 days, while humidity sits at 82%. In contrast, October brings cooler temperatures, with a minimum of 0°C (32°F) and a maximum of 21°C (71°F), averaging 12°C (53°F). This month experiences significantly higher precipitation at 102 mm (4.0 in) over 13 days and increased humidity at 90%. For a more detailed look at October weather, check out Winchester weather in October.
September generally offers milder temperatures, with averages around 15°C (59°F) and maximums reaching up to 28°C (82°F), making it a more pleasant month for outdoor activities. In contrast, November sees a notable drop in temperature, with average highs of only 8°C (47°F) and minimums often dipping to -3°C (28°F). Additionally, November experiences higher humidity at 92% and more precipitation, totaling 66 mm (2.6 inches) over about 11 days compared to September's 48 mm (1.9 inches) over 9 days. For more detailed insights into November weather, you can visit Winchester weather in November.
The weather in September and December shows a stark contrast in temperature and precipitation patterns. In September, temperatures range from a minimum of 2°C (36°F) to a maximum of 28°C (82°F), with an average of 15°C (59°F). The month experiences 48 mm (1.9 in) of precipitation over about 9 days, accompanied by a humidity level of 82%. In comparison, December brings colder temperatures, with a minimum of -3°C (27°F) and a maximum of 15°C (59°F), averaging just 7°C (44°F). This month sees significantly more precipitation at 93 mm (3.6 in) spread over 14 days, and humidity rises slightly to 92%. For a closer look at the specific weather conditions in December, you can visit Winchester weather in December.
As September rolls in, Winchester experiences a refreshing shift in weather that sets it apart from the summer months. With temperatures dropping to a milder average, the days become more bearable, inviting exploration of the beautiful surroundings. However, the increased humidity of 82% and the occasional 9 days of rain remind us that autumn is approaching, making it a transitional period. This blend of pleasant warmth and cooling breezes creates an ideal backdrop for outdoor activities and fall festivities. To further explore how September's weather stacks up against the rest of the year, check out Winchester Climate.