Last updated: March 17, 2025
In September, Newcastle, United Kingdom experiences a blend of mild conditions with an average temperature of 13°C (56°F), peaking at a comfortable 20°C (69°F) and dipping to a brisk 5°C (41°F). This month is characterized by frequent rainfall, with 83 mm (3.3 in) of precipitation spread over 16 days, painting a picture of a typically damp, yet vibrant autumn atmosphere. With humidity levels soaring at 88%, the coastal city offers a refreshing embrace, making it a unique time to explore its charming streets and rich culture, while also being prepared for the rain.
As September arrives in Newcastle, the city begins to transition from the warmth of summer to the coolness of autumn. With minimum temperatures averaging 5°C (41°F) and a pleasant maximum reaching around 20°C (69°F), this month marks a significant drop from the sweltering highs of July and August. The average temperature settles at 13°C (56°F), indicating a shift towards crisper days while still offering a few lingering moments of warmth. This gradual cooling trend sets the stage for the enchanting autumn colors that will soon blanket the region, enticing outdoor enthusiasts to explore the city's parks and scenic routes before the chill of winter takes hold.
As summer transitions into autumn, September in Newcastle, United Kingdom, experiences moderate precipitation, with an average of 83 mm (3.3 in) of rain spread across 16 days. This marks a slight decrease from the notably wetter August, which saw 120 mm (4.7 in) over 18 days. The comparatively drier September offers a refreshing respite, but the clouds still linger, hinting at the wetter months ahead. Historically, the precipitation levels this month align closely with those in July and June, showcasing Newcastle’s characteristic maritime climate. As the season progresses, the trend indicates an expected increase in rainfall, with October typically bringing more substantial downpours, averaging 104 mm (4.1 in).
As September rolls into Newcastle, the air becomes noticeably more humid, with levels rising to 88%—the highest figure recorded for the month. This slight uptick reflects a seasonal trend, as humidity begins to climb from the more moderate levels found in late spring and summer. After peaking in September, humidity continues to rise through October and November, reaching a peak of 90% by November. Overall, the gradual increase in humidity levels is part of Newcastle's characteristic transition into the fall, bringing with it a richer, cooler atmosphere that many residents embrace.
As September rolls into Newcastle, the UV Index measures a moderate 5, indicating it's time to be mindful of sun exposure. This reading signifies a shift from the high summer levels of 6 and 8 seen in July and August, allowing for more comfortable outdoor activities. However, with a burn time of just 30 minutes, it's essential to take precautions, particularly during mid-day hours. Looking ahead, the UV Index will gradually decrease, dropping to 3 in October, which suggests that the risk of sunburn diminishes as autumn sets in. For detailed insights on Newcastle's UV patterns and safety tips, be sure to check out Newcastle UV Index.
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As summer gently transitions into autumn, September in Newcastle, United Kingdom offers a delightful embrace of sunshine, with approximately 295 hours of glorious daylight. This month's brightness reflects the gradual decline from the peak summer sunshine witnessed in July and August, where Newcastle basked in 399 and 349 hours respectively. However, compared to the earlier months of the year, September still holds its own with a generous amount of light, exceeding the 232 hours of October ahead. This trend illustrates a gradual shift toward shorter days, yet September's pleasant warmth and lingering sunlight make it a charming time to enjoy the city's vibrant landscapes before the cooler months settle in.
In Newcastle, the likelihood of sunny weather in September hovers around 21%, which reflects a continuation of the trend seen throughout the summer months. After the bright spots of April with 43% and a more variable May at 35%, the sunniest days begin to wane as autumn approaches. While September promises some glimpses of sunshine, it ranks among the lower probabilities for clear skies in the year, especially when compared to the more unpredictable months of spring and early summer. This pattern emphasizes a shift towards cooler, cloudier days as the city gradually transitions into October’s even dimmer 19% chance of sun.
As summer fades, September in Newcastle, United Kingdom, marks a transition into the softer embrace of autumn, showcasing approximately 12 hours of daylight. This gentle decline from the 17 hours of sunlight enjoyed in June reflects the gradual shift of the seasons. While the days are still relatively long compared to the chill of winter, they begin to shorten noticeably, following the pattern established earlier in the year as daylight peaked in May and June. As we look ahead, October will bring a further reduction to 10 hours, emphasizing the waning light before winter wraps the city in longer nights.
As autumn approaches in Newcastle, September brings a gentle breeze with an average wind speed of 3.9 m/s (9 mph), slightly picking up from the calmness of July and August. This month serves as a transition, sandwiched between the light summer winds and the stronger gales of October, which see a notable increase to 5.4 m/s (12 mph). The overall trend in wind speed throughout the year reveals a gradual rise from the winter months, with January's stillness at 5.0 m/s (11 mph), peaking as the seasons change. September's mild gusts, therefore, not only provide a refreshing feel but also hint at the brisk winds that herald the coming fall.
The weather in Newcastle 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 Newcastle and find detailed weather information for every month.
September and January present contrasting weather conditions. In September, temperatures range from a minimum of 5°C (41°F) to a maximum of 20°C (69°F), with an average of 13°C (56°F). This month experiences high humidity at 88% and considerable precipitation of 83 mm (3.3 in) over 16 days. In contrast, January is much colder, with temperatures dropping to a minimum of -2°C (29°F) and reaching a maximum of 13°C (56°F), averaging at 6°C (43°F). Precipitation is slightly lower at 68 mm (2.7 in) spread over 12 days, while humidity remains similar at 87%. For more detailed information, you can check Newcastle weather in January.
In September, temperatures average around 13°C (56°F), with a minimum of 5°C (41°F) and a maximum of 20°C (69°F), while February brings cooler conditions with an average of 6°C (43°F) and a maximum of 12°C (55°F), dipping as low as -1°C (31°F). Precipitation is relatively high in both months, with September receiving 83 mm (3.3 in) over 16 days and February slightly wetter at 99 mm (3.9 in) over 17 days. Despite the difference in temperature, humidity levels remain somewhat similar, with September at 88% and February at 86%. For more details on February weather in Newcastle, you can check Newcastle weather in February.
When comparing the weather in September and March, noticeable differences in temperature and conditions are evident. September enjoys milder temperatures, with a minimum of 5°C (41°F) and an average around 13°C (56°F), reaching a pleasant maximum of 20°C (69°F). In contrast, March sees colder conditions, starting at a minimum of -3°C (27°F) and averaging 7°C (44°F), with a maximum of 14°C (58°F). Additionally, both months experience similar precipitation levels, with September receiving 83 mm (3.3 in) and March slightly higher at 92 mm (3.6 in), both spread over around 16 days. The humidity remains fairly consistent, with September at 88% and March at 86%. For more detailed insights, you can check the Newcastle weather in March.
When comparing the weather in September and April, notable differences emerge. September tends to be milder, with average temperatures ranging from a minimum of 5°C (41°F) to a maximum of 20°C (69°F), while April's temperatures are cooler, averaging between 0°C (32°F) and 16°C (61°F). Additionally, September experiences more precipitation, with about 83 mm (3.3 in) falling over 16 days, compared to April's 47 mm (1.8 in) over just 9 days. Humidity levels are fairly similar, with September slightly higher at 88% compared to April's 85%. For more details on April weather, you can check Newcastle weather in April.
When comparing the weather in September and May, September tends to be slightly warmer, with average temperatures ranging from a minimum of 5°C (41°F) to a maximum of 20°C (69°F), whereas May has a cooler average, with temperatures ranging from 2°C (35°F) to 19°C (67°F). Precipitation is also a key difference; September sees more rainfall at 83 mm (3.3 in) over 16 days compared to May’s 66 mm (2.6 in) across 12 days. Additionally, September has a higher humidity level at 88%, while May’s humidity is around 82%. For more detailed insights, you can check out Newcastle weather in May.
September and June present distinct differences in weather conditions. In June, temperatures start off slightly warmer, with a minimum of 7°C (44°F) and a maximum of 24°C (75°F), while September features a cooler range with a minimum of 5°C (41°F) and a maximum of 20°C (69°F). Both months experience substantial humidity, with September at 88% and June slightly lower at 84%. Precipitation levels are similar, with June seeing 78 mm (3.1 in) over 14 days and September having a bit more at 83 mm (3.3 in) across 16 days. For more details on June weather, visit Newcastle weather in June.
In comparing the weather between September and July, we observe some notable differences. September experiences cooler temperatures, with a minimum of 5°C (41°F) and an average of 13°C (56°F), whereas July is warmer, featuring a minimum of 9°C (48°F) and an average of 15°C (60°F). Additionally, September sees a maximum temperature of 20°C (69°F), compared to July’s maximum of 24°C (76°F). Precipitation levels are quite similar, with September receiving 83 mm (3.3 in) over 16 days, while July has slightly less at 85 mm (3.3 in) across 14 days. Humidity remains high in both months, but September edges out with 88% compared to July's 86%. For a detailed look at July weather, you can check this link: Newcastle weather in July.
In comparing the weather of September to August, it is evident that September tends to be cooler and slightly less humid. September has a minimum temperature of 5°C (41°F) and an average of 13°C (56°F), while August is warmer, with a minimum of 9°C (48°F) and an average of 15°C (59°F). Precipitation in September totals 83 mm (3.3 in) over 16 days, which is a decrease from August's 120 mm (4.7 in) over 18 days. Despite both months experiencing similar maximum temperatures of around 20°C (69°F), the humidity in September is marginally higher at 88%, compared to August's 86%. For more details on August weather, you can visit Newcastle weather in August.
September weather shows a mild transition into autumn, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 20°C (69°F) and an average temperature of 13°C (56°F). However, it experiences significant precipitation, with 83 mm (3.3 in) over 16 days, and humidity remains high at 88%. In contrast, October brings cooler conditions, with temperatures dipping further to a minimum of 2°C (37°F) and an average of 11°C (52°F), peaking at 18°C (64°F). Rainfall increases slightly to 104 mm (4.1 in) spread over 17 days, with a marginal rise in humidity to 89%. For more specific details, you can check the Newcastle weather in October.
September and November present distinctly different weather patterns. In September, temperatures range from a minimum of 5°C (41°F) to a maximum of 20°C (69°F), with an average of 13°C (56°F). The month experiences a total precipitation of 83 mm (3.3 in) over 16 days, coupled with a relatively high humidity level of 88%. In contrast, November sees cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 14°C (58°F), averaging 8°C (47°F). Precipitation increases to 113 mm (4.5 in) over the same number of days, and humidity rises slightly to 90%. For more detailed information, visit Newcastle weather in November.
In September, the weather typically features milder temperatures, with a minimum of 5°C (41°F) and an average of 13°C (56°F), reaching a maximum of about 20°C (69°F). However, it is also quite humid at 88%, and rainfall is frequent, totaling 83 mm (3.3 in) across 16 days. In contrast, December brings colder conditions, where the temperatures drop, with a minimum of 0°C (32°F) and an average of 7°C (44°F), peaking at only 13°C (55°F). This month is slightly wetter, with precipitation at 104 mm (4.1 in) over 14 days and a humidity level of 86%. For more details on December weather, you can refer to Newcastle weather in December.
As September rolls into Newcastle, the city's weather begins to transition from the warmth of summer to the crispness of autumn. Maximum temperatures average around 20°C, offering a lingering touch of warmth, while the cooler nights dip down to a refreshing 5°C. Rainfall is more frequent, with approximately half the month experiencing some level of precipitation, contributing to a noticeably humid environment. This combination of factors creates a unique climate in September, setting it apart from other months where the weather tends to be either more stable or significantly cooler. For a deeper understanding of Newcastle's weather trends throughout the year, explore the full Newcastle Climate.