September Weather in Halifax, United Kingdom

Last updated: March 17, 2025

September weather in Halifax, United Kingdom is marked by a pleasant range of temperatures, peaking at a warm 27°C (80°F) and averaging around 13°C (55°F), while dipping to a cool 3°C (37°F) during the nights. This transitional month witnesses 79 mm (3.1 in) of rainfall spread across 12 days, contributing to the region's lush greenery. With humidity levels hovering at 85%, residents often experience a crisp yet damp atmosphere, making for a refreshing, if somewhat unpredictable, start to autumn.

September Temperature in Halifax

As summer gives way to autumn, September in Halifax, United Kingdom, showcases a delightful transition in temperatures. With minimums averaging around 3°C (37°F) and maximums reaching a cozy 27°C (80°F), this month boasts an average temperature of 13°C (55°F), striking a perfect balance for those looking to enjoy the outdoors. The warmth lingers from the summer, yet the cool nights hint at the approaching chill of fall. As daylight begins to wane, September invites both locals and visitors to bask in the mild weather, making it an ideal time for leisurely strolls and vibrant autumn activities.

September Weather in Halifax: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Halifax, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec394042465257605955504441
Data source: Temperature data for Halifax 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 Halifax

In September, Halifax experiences a shift towards autumn, with precipitation averaging around 79 mm (3.1 in) over 12 days of rain. This marks a slight decrease from the preceding months, where July and August saw heavier rainfall, each over 93 mm. The transition is noticeable compared to the wetter summer months, but September still holds a respectable amount of rain, contributing to the lushness of the landscape. As the temperature begins to drop, residents can expect shorter days and a backdrop of grey skies, setting the stage for the increasingly frequent showers that characterize the approaching fall and winter months.

September Precipitation Trends in Halifax

The chart displays monthly precipitation patterns in Halifax, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6593924466869493791027492
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Halifax

As summer gives way to autumn, September in Halifax sees a slight uptick in humidity, with levels around 85%. This marks a transition from the drier months of July and August, which experience lower humidity at 76% and 77%, respectively. The humidity begins to rise again, nearing the higher figures observed in late autumn, where it peaks in November at 92%. Thus, September serves as a precursor to the wetter months ahead, blending the lingering warmth of summer with the freshness of fall, making for dynamic weather patterns in this charming coastal town.

September Average Humidity in Halifax

This chart illustrates the average monthly humidity levels in Halifax, 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.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%84%80%81%76%77%85%90%92%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Halifax

As the summer months wane, September's UV Index in Halifax reflects a transition towards milder sun exposure, registering a moderate level of 5. This level indicates a burn time of 30 minutes, suggesting that while protective measures are still essential, the risk is lower compared to the peak summer months when the UV Index soared to 8. The trend over the months showcases a decreasing UV intensity from the heights of July and August, leading into a more temperate fall. Whether you’re out enjoying the late summer sun or embarking on autumn adventures, it's important to stay informed about UV levels. For more detailed information, visit Halifax UV Index.

Maximum UV Index Levels in Halifax for September

The chart shows the monthly maximum UV Index (UVI) for Halifax 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Halifax 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 Halifax

In September, Halifax enjoys a delightful 280 hours of sunshine, a significant contrast to the dim winter months with only 92 hours in December. This transitional month marks a gradual shift from the golden abundance of summer, peaking in July with 387 hours, down to the cozy embrace of autumn. Following a vibrant summer, where the sun graces the town with plenty of luminous days, September still retains a commendable amount of sunshine, encouraging outdoor activities and festivals. As the year progresses toward the cooler months, the light hours decrease steadily, but September's warmth serves as a cherished farewell to summer, reminding residents and visitors alike of the beauty that often lingers in the early autumn days.

Monthly Sunshine Duration in Halifax: September Highlighted

The September sunshine duration represents the total number of hours Halifax 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.
JanFebMarAprMayJunJulAugSepOctNovDec77h140h199h310h383h348h387h353h280h221h112h92h
Data source: Halifax September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Halifax During September

In Halifax, UK, the likelihood of sunny weather shows a trend of fluctuating percentages throughout the year, with September's chance of sun sitting at a moderate 23%. This percentage mirrors that of both February and June, indicating a consistent chance of clear skies as summer transitions into autumn. While spring months like April boast a more promising 47% likelihood, the late summer months typically yield better sunshine. In September, residents can expect a blend of cool breezes and occasional sunshine, making it a delightful time to enjoy the outdoors, albeit with the understanding that clear days may be limited as the days shorten into autumn.

Percentage of Sunny Days in September in Halifax

The chart illustrates the percentage of sunny days in Halifax 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 Halifax experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec17%23%22%48%28%26%32%21%23%20%27%15%
Data source: Halifax September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Halifax in September

As summer transitions into autumn, September in Halifax, United Kingdom sees a delightful tapering of daylight, offering about 12 hours of sun. This marks a gentle decline from the lush 16 hours experienced in June and July, reflecting the shift towards shorter days. The month serves as a bridge, balancing the lingering warmth of summer with the crisp beginnings of fall. Following September, daylight continues to diminish, dipping to 10 hours in October and down to 8 hours by November, signaling the approaching winter months. This gradual reduction enhances the cozy atmosphere of early autumn, inviting residents to savor the golden hues of the season.

Average Daylight Hours in Halifax for September

The chart illustrates the variation in daylight duration in Halifax throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 4m9h 48m11h 54m14h 3m15h 57m16h 57m16h 25m14h 42m12h 37m10h 29m8h 33m7h 31m
Data source: Halifax daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Halifax

As September arrives in Halifax, UK, the average wind speed maintains a gentle 3.6 m/s (8 mph), echoing the light breezes felt in both May and August. This consistent wind pattern signals a transition from the calmer summer months toward the more robust gusts of autumn. Notably, September's wind speed reflects a gradual increase observed in the months leading up to October, when winds pick up to an average of 5.1 m/s (11 mph). As the season shifts, residents can expect the September winds to herald the refreshing chill of fall, while still offering a lingering warmth from the summer past.

Average September Wind Speed in Halifax

The chart displays monthly wind speed patterns in Halifax, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.44.94.83.23.63.32.83.63.6 m/s5.14.84.3
Data source: Halifax September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Halifax Compares to Other Months

The weather in Halifax 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 Halifax and find detailed weather information for every month.

In September, the weather in Halifax typically ranges from a cool minimum of 3°C (37°F) to a warm maximum of 27°C (80°F), with an average temperature of 13°C (55°F). It's a relatively wet month, receiving 79 mm (3.1 in) of precipitation over about 12 days, accompanied by high humidity at 85%. In contrast, January presents a much colder climate, with temperatures dipping to a minimum of -5°C (23°F) and an average of just 4°C (39°F), peaking at 13°C (56°F). Precipitation during this winter month is lower, totaling 65 mm (2.6 in) over 11 days, but the humidity is notably high at 90%. For more specific weather details, you can explore Halifax weather in January.

September and February present contrasting weather patterns, with September generally enjoying milder temperatures. In September, temperatures range from a minimum of 3°C (37°F) to a maximum of 27°C (80°F), with an average of 13°C (55°F). This month also sees a fair amount of precipitation, totaling 79 mm (3.1 in) over about 12 days, alongside a high humidity of 85%. In contrast, February is colder, with temperatures dipping as low as -6°C (21°F) and averaging around 5°C (40°F). The maximum temperature reaches only up to 17°C (63°F). February experiences slightly more precipitation at 93 mm (3.7 in) over approximately 16 days and a slightly higher humidity level of 88%. For a deeper dive into Halifax's weather during this month, you can check Halifax weather in February.

In comparing the weather conditions of September and March, we see notable differences in both temperature and precipitation patterns. September experiences milder temperatures with a minimum of 3°C (37°F) and an average of 13°C (55°F), reaching a maximum of 27°C (80°F). In contrast, March is significantly cooler, starting with a minimum of -7°C (20°F) and averaging 6°C (43°F), while peaking at 18°C (65°F). Both months share a relatively high humidity level, with September at 85% and March slightly higher at 86%. Precipitation levels are also noteworthy, as March receives 92 mm (3.6 in) across 15 days compared to September's 79 mm (3.1 in) spread over 12 days. For a more detailed look at March weather, check out Halifax weather in March.

September and April present contrasting weather patterns as summer transitions to autumn. In September, temperatures range from a minimum of 3°C (37°F) to a maximum of 27°C (80°F), with an average of 13°C (55°F). This month experiences higher precipitation, totaling 79 mm (3.1 in) over about 12 days, alongside a humidity level of 85%. Conversely, April sees cooler temperatures, with a minimum of -3°C (26°F) and a maximum of 23°C (73°F), averaging at 8°C (46°F). The precipitation is significantly less at 44 mm (1.7 in) spread over 8 days, while humidity remains relatively stable at 84%. For more information on April weather, visit Halifax weather in April.

September generally offers a warmer climate compared to May, with average temperatures reaching around 13°C (55°F) and maximums peaking at 27°C (80°F), while May sees an average of 11°C (52°F) and maximums of 25°C (77°F). However, September tends to be slightly wetter, with 79 mm (3.1 in) of precipitation over 12 days, compared to May's 66 mm (2.6 in) over 13 days. Humidity levels are relatively similar, at 85% in September and 80% in May. For a closer look at the weather conditions during May, you can check Halifax weather in May.

In comparing the weather between September and June, both months showcase a similar maximum temperature of around 27°C (81°F), but September tends to be slightly cooler with average temperatures of 13°C (55°F) compared to June's 14°C (57°F). September experiences a lower minimum temperature of 3°C (37°F) compared to June's 5°C (41°F). Precipitation levels are relatively close, with September receiving 79 mm (3.1 in) over 12 days and June having 86 mm (3.4 in) over 13 days, making both months moderately wet. Humidity also plays a role, with September being a bit more humid at 85%, while June's humidity sits at 81%. For more detailed comparisons on June weather, you can visit Halifax weather in June.

In comparing the weather between September and July, it's clear that July tends to be warmer with average temperatures ranging from a minimum of 6°C (43°F) to a maximum of 33°C (91°F). In contrast, September has cooler averages, featuring temperatures that dip to a minimum of 3°C (37°F) and peak at 27°C (80°F). Additionally, July experiences slightly higher precipitation levels at 94 mm (3.7 in) over 14 days, compared to September's 79 mm (3.1 in) over 12 days. Humidity is also notably higher in September at 85%, compared to 76% in July. For more details, you can check Halifax weather in July.

In comparing the weather from August to September, we see a notable shift in temperatures and precipitation patterns. September experiences cooler minimum temperatures, starting at 3°C (37°F), compared to August’s warmer 7°C (45°F). The average temperature in September is slightly lower at 13°C (55°F), while August boasts an average of 15°C (60°F). Although September has fewer maximum temperature days, peaking at 27°C (80°F), it still presents a comfortable range compared to August’s max of 30°C (86°F). Precipitation is also a factor, with September receiving 79 mm (3.1 in) over 12 days, while August sees slightly more rain, totaling 93 mm (3.7 in) over 17 days. Additionally, September’s humidity is higher at 85%, compared to August’s 77%. For more details, you can check Halifax weather in August.

September weather tends to be warmer, with average temperatures reaching up to 13°C (55°F) and maximums soaring to 27°C (80°F). In contrast, October cools down considerably, with average temperatures dropping to 10°C (50°F) and maximums peaking at 21°C (70°F). Additionally, October experiences increased precipitation, with 102 mm (4.0 in) of rainfall over 16 days compared to September's 79 mm (3.1 in) over 12 days. The humidity also rises slightly in October, reaching 90%, while September's humidity sits at 85%. For more detailed insights, you can check out Halifax weather in October.

September and November present distinctly contrasting weather conditions. In September, temperatures range from a mild 3°C (37°F) at night to a pleasant 27°C (80°F) during the day, with an average of 13°C (55°F). The month experiences 79 mm (3.1 in) of precipitation over about 12 days, accompanied by a relatively high humidity of 85%. In comparison, November brings a chillier atmosphere, with temperatures dropping to a minimum of -5°C (23°F) and averaging just 7°C (44°F), peaking at a maximum of 16°C (61°F). Although precipitation remains similar at 74 mm (2.9 in), it occurs over a greater number of days, specifically 15, and humidity rises slightly to 92%. For more details, visit Halifax weather in November.

September and December exhibit contrasting weather patterns. In September, temperatures range from a mild 3°C (37°F) at night to a warm 27°C (80°F) during the day, with an average of 13°C (55°F). The month experiences about 79 mm (3.1 in) of precipitation over 12 days, accompanied by a humidity level of 85%. In stark contrast, December brings much colder temperatures, with a minimum of -4°C (24°F) and a maximum of only 13°C (55°F), averaging at 5°C (41°F). Precipitation increases slightly to 92 mm (3.6 in) over 15 days, coupled with higher humidity at 90%. For more details on December weather, you can visit Halifax weather in December.

Compare Halifax's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Halifax

As September unfolds in Halifax, the weather offers a distinct transition from the warmth of summer into the cooler embrace of autumn. With average temperatures dipping noticeably from the previous months, the city experiences a blend of pleasant warmth during the day and cooler nights. Humidity levels remain high, creating a rich atmosphere that can make even light rainfall feel more pronounced, as seen in the approximately 12 days of precipitation this month. This combination of warmth and moisture not only enhances the vibrant fall foliage but also marks a shift in the overall climate, inviting locals and visitors alike to enjoy the cozy ambiance of early autumn. For those interested in understanding more about how Halifax's weather changes throughout the year, be sure to check out the detailed insights at Halifax Climate.