Last updated: March 17, 2025
Experience October in Belfast, United Kingdom, where the weather dances between the briskness of cool temperatures and the charm of autumnal rains. With a maximum temperature reaching 18°C (65°F) and an average of 11°C (52°F), the city offers a refreshing climate, although it can dip to a cool 1°C (35°F) on chilly nights. Expect 92 mm (3.6 in) of precipitation spread over 15 days, contributing to the lush, green landscapes the region is known for. The air is often filled with a crisp humidity of 89%, creating the perfect setting for cozy gatherings and picturesque strolls through the vibrant fall foliage.
As October unfolds in Belfast, temperatures begin to dip, marking a transition into the cooler months. With a minimum temperature of around 1°C (35°F) and a maximum reaching 18°C (65°F), the month presents a pleasant yet brisk climate. The average temperature settles at approximately 11°C (52°F), reflecting a notable shift from the warmer days of summer. This month typically showcases the vibrant hues of autumn, inviting residents and visitors alike to enjoy the crisp air and scenic landscapes, while layers become essential as the chill creeps in during the evenings. As Belfast prepares for winter, October serves as a perfect precursor, balancing moderate warmth with a touch of seasonal coolness.
October in Belfast sees a notable increase in precipitation, with an average of 92 mm (3.6 in) falling over 15 days. This aligns with the wetter trend observed in the latter part of the year, as both September and November also feature significant rainfall amounts, at 75 mm (3.0 in) and 94 mm (3.7 in) respectively. The month of October marks a transition from the milder summer months, where precipitation averaged around 84 mm (3.3 in) in July and peaked at 115 mm (4.5 in) in August. With the seasonal shift, October not only prepares the landscape for winter but also illustrates a steady rhythm of rainfall that characterizes Belfast's climate. Enjoy the cozy ambiance that comes with the frequent showers, as they are a hallmark of autumn in this vibrant city!
In October, Belfast experiences a noticeable uptick in humidity, reaching 89%, which is among the highest levels recorded throughout the year. This increase follows a trend observed from September, where humidity peaked at 88%. As autumn takes hold, the air becomes increasingly moist, paving the way for a brisk transition into winter. Interestingly, this month's humidity is slightly higher than the average recorded during the spring and summer months, reflecting the city's shift towards cooler and wetter weather patterns. Additionally, with a rise to 90% in November, October serves as a prelude to the more humid conditions that characterize the late autumn months.
As October rolls into Belfast, the UV Index settles at a moderate 3, encouraging residents to enjoy the crisp autumn air while remaining mindful of sun exposure. Compared to the preceding summer months, where the index peaked at a high 8, October’s UV levels offer a gentler reminder of seasonal shifts. This decrease means a safe burn time of 30 minutes, allowing for ample time outside without the same urgency as summer. As the year progresses, the UV Index generally trends lower, starting from a minimal 1 in January to a moderate 5 by September. For a comprehensive look at UV levels throughout the year, visit Belfast UV Index.
UV Risk Categories
October in Belfast shines with an inviting 232 hours of sunshine, marking a vibrant transition into autumn. This month typically enjoys a significant dip in daylight compared to the long, sunlit days of summer, but it still outshines its winter counterparts, with November and December offering only 115 and 87 hours, respectively. Interestingly, October's sunlight is a reminder of the longer days experienced in the spring, particularly April and May, which boast a glorious peak of 322 and 403 hours. As the year progresses, Belfast's sunny spells increasingly retreat, but October gracefully bridges the warm glow of summer into the crisp, cozy days of fall, making it a month of bittersweet beauty.
In Belfast, the likelihood of sunny weather peaks in April, with a promising 42% chance, but as the year progresses into October, this sunny prospect significantly diminishes to just 18%. This decline is part of a broader trend observed throughout the year; while late spring and early summer months like April and May flirt with more sunshine, the autumn months struggle, bringing just a glimmer of sun amid the frequently overcast skies. As October rolls in, the trend of diminishing sunny days becomes apparent, leaving residents and visitors alike to seek out those brief moments of sunshine amidst the clouds.
As the crisp days of October arrive in Belfast, the city experiences a moderate 10 hours of daylight, a gradual decline from the bright summer months. The trend of diminishing daylight begins in August when it peaks at 14 hours, signaling the transition into autumn. Throughout the month, daylight reduces steadily, reflecting nature's shift toward winter. Interestingly, this pattern of shorter days will continue into November and December, where just 8 hours and 7 hours of daylight are observed, respectively. While October’s daylight may not match the vibrant lengths of summer, it provides a unique opportunity to embrace the cozy charm of fall in Belfast, with its changing leaves and crisp air inviting evening strolls and warm gatherings.
As October arrives in Belfast, the winds begin to pick up, averaging 4.7 m/s (10 mph), reflecting a noticeable shift from the calmer summer months. This uptick in wind speed is a prelude to the more blustery conditions that November brings, with winds increasing to 5.0 m/s (11 mph). The transition from autumn to winter is evident, as October sits at a sweet spot—gentle enough for crisp walks yet breezy enough to rustle the falling leaves. Notably, October’s winds are stronger than those of the summer months, which dipped to a low of 2.6 m/s (6 mph) in July. With this invigorating breeze, Belfast begins to embrace the seasonal change, inviting residents and visitors alike to enjoy the beauty of its autumn landscape.
The weather in Belfast changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of October's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Belfast and find detailed weather information for every month.
Compared to January, October experiences slightly warmer temperatures, with averages ranging from 1°C (35°F) to 11°C (52°F) during the month, peaking at 18°C (65°F). In contrast, January sees a lower temperature range, with minimums dropping to -4°C (26°F) and averaging around 6°C (43°F), while highs reach 14°C (57°F). October is also wetter, with about 92 mm (3.6 in) of precipitation over 15 days, compared to January's 60 mm (2.3 in) over 10 days. Humidity levels are comparable, with October at 89% and January slightly lower at 87%. For more detailed information, you can check Belfast weather in January.
October and February present distinct contrasts in weather conditions. In October, temperatures range from a minimum of 1°C (35°F) to a maximum of 18°C (65°F), with an average of 11°C (52°F). The month experiences about 92 mm (3.6 in) of precipitation spread over 15 days and maintains high humidity at 89%. In contrast, February generally sees cooler temperatures, with a minimum of -2°C (28°F) and a maximum of 13°C (56°F), averaging 6°C (43°F). Precipitation is slightly lower at 89 mm (3.5 in) across 14 days, and humidity remains relatively high at 86%. For more detailed insights into February weather, you can check Belfast weather in February.
When comparing the weather in October and March, we see noticeable differences in temperature and precipitation patterns. In October, temperatures range from a minimum of 1°C (35°F) to a maximum of 18°C (65°F), with an average of 11°C (52°F) and approximately 92 mm (3.6 in) of rainfall over 15 days, making it a relatively mild and damp month with high humidity at 89%. Conversely, March experiences cooler temperatures, with a low of -3°C (27°F) and a high of 16°C (60°F), averaging around 7°C (44°F). Rainfall is slightly less at 80 mm (3.2 in), but spread over 16 days, resulting in a slightly lower humidity level of 86%. For more detailed insights, you can check out Belfast weather in March.
When comparing the weather in October and April, we notice some distinct differences despite their similar maximum temperatures of 18°C (65°F). October tends to have a milder average temperature at 11°C (52°F), compared to April's cooler average of 8°C (47°F). Additionally, October experiences significantly more precipitation, with 92 mm (3.6 in) over 15 days, while April has only 45 mm (1.8 in) over 10 days. Both months feature high humidity, but October's level of 89% slightly surpasses April's 85%, making the former feel a bit more damp. For a detailed look at April's weather specifics, check out Belfast weather in April.
In comparing the weather between October and May, we notice some distinct differences. October tends to be cooler, with average temperatures ranging from 1°C (35°F) to a maximum of 18°C (65°F), while May enjoys warmer conditions, with temperatures reaching up to 22°C (71°F). Both months have similar minimum temperatures, but May's higher average and maximum temperatures contribute to a more pleasant feel. Precipitation is also higher in October at 92 mm (3.6 in) over 15 days, compared to May's 66 mm (2.6 in) over 13 days, suggesting that May is slightly drier. Additionally, October has a higher humidity level at 89%, while May's humidity is more comfortable at 82%. For a closer look at the specifics of May weather, you can check Belfast weather in May.
When comparing the weather in October and June, one can see notable differences in temperature and precipitation. October experiences cooler temperatures with a minimum of 1°C (35°F) and an average of 11°C (52°F), while June offers milder weather with a minimum of 6°C (43°F) and an average of 14°C (57°F). Additionally, October has a maximum temperature of 18°C (65°F) compared to June’s warmer peak of 26°C (79°F). In terms of precipitation, October has slightly higher rainfall at 92 mm (3.6 in) over 15 days, while June sees 78 mm (3.1 in) across 14 days. The humidity in October is also higher at 89% compared to June's 84%. For more details about the weather in June, you can check out Belfast weather in June.
When comparing the weather in October and July, distinct differences emerge. October experiences cooler temperatures, with a minimum of 1°C (35°F) and an average of 11°C (52°F), whereas July boasts milder conditions, with a minimum of 8°C (47°F) and an average of 15°C (60°F). Additionally, July tends to have warmer highs, reaching up to 26°C (78°F), compared to October's maximum of 18°C (65°F). Both months see considerable precipitation—October with 92 mm (3.6 in) over 15 days, and July with slightly less at 84 mm (3.3 in) over 14 days. The humidity remains relatively high in both months, at 89% in October and 86% in July, contributing to the overall atmospheric feel. For more detailed insights, check out Belfast weather in July.
When comparing the weather in October and August, it's clear that October is notably cooler, with average temperatures ranging from a minimum of 1°C (35°F) to a maximum of 18°C (65°F), compared to August, where temperatures are more mild, averaging from 8°C (46°F) to 22°C (71°F). October also sees more overcast days, with 15 days of precipitation totaling 92 mm (3.6 in), while August experiences more rainfall overall, accumulating 115 mm (4.5 in) across 19 rainy days. Humidity levels are slightly higher in October at 89% versus August's 86%, contributing to a more damp and chilly atmosphere as the autumn season sets in. For further details, you can check Belfast weather in August.
In comparing the weather between September and October, October tends to be cooler overall, with average temperatures dropping from 13°C (56°F) in September to 11°C (52°F). The minimum temperature in October falls to 1°C (35°F), while September's minimum is slightly warmer at 4°C (39°F). Additionally, October sees an increase in precipitation, with 92 mm (3.6 in) of rain compared to 75 mm (3.0 in) in September, although both months experience rain on about 15 days. Humidity levels remain quite high in both months, with October slightly higher at 89% compared to September's 88%. For more detailed insights, check out Belfast weather in September.
October and November in Belfast present a gradual transition into the chill of winter. October typically sees slightly warmer temperatures, with averages around 11°C (52°F) and highs reaching 18°C (65°F), while November cools down, averaging 8°C (47°F) and peaking at 15°C (59°F). Both months experience similar levels of precipitation, with October registering 92 mm (3.6 in) and November slightly higher at 94 mm (3.7 in), across about 15 days of rain. Humidity remains high in both months, with October at 89% and November at 90%, adding a damp chill to the air. For more details, you can check Belfast weather in November.
October and December present quite contrasting weather patterns, despite having similar precipitation levels. In October, the temperatures range from a mild 1°C (35°F) to a warmer maximum of 18°C (65°F), with an average of 11°C (52°F) and high humidity at 89%. This month often feels relatively pleasant, even with 15 days of rain totaling 92 mm (3.6 in). In contrast, December brings a chillier climate, with temperatures dipping to a minimum of -1°C (30°F) and peaking at 13°C (56°F), averaging around 6°C (44°F). The precipitation remains similar at 91 mm (3.6 in) also spread over 15 days, but with slightly lower humidity at 86%. For more detailed information, you can check Belfast weather in December.
As October rolls in, Belfast experiences a noticeable shift in weather, with cooler temperatures and increased precipitation compared to the warmer and drier summer months. The city's charm accentuates under a blanket of clouds, and the average temperature dips to a brisk 11°C, inviting residents and visitors alike to layer up. With nearly half the days in October experiencing rainfall, this month stands out for its high humidity levels, often lingering around 89%. Embrace the autumnal atmosphere that Belfast has to offer, and discover how this vibrant city transforms under the gray skies by exploring more about its climate here.