Last updated: March 17, 2025
In October, Cardiff experiences a transitional climate that captures the essence of autumn. With a maximum temperature reaching 21°C (70°F) and an average of 12°C (54°F), the days are cool yet pleasantly mild. However, evenings can drop to a brisk 1°C (33°F), reminding residents of the season's chill. This month is also marked by significant precipitation, totaling 135 mm (5.3 in) over 16 days, leading to a high humidity level of 89%. As the leaves turn, October in Cardiff invites both the beauty of changing scenery and the need for a cozy umbrella.
As October settles in Cardiff, temperatures begin to showcase the city's gradual shift from the warmth of summer to the crispness of autumn. The month greets residents with a minimum of 1°C (33°F), setting a cool foundation, while the average temperature lingers around a comfortable 12°C (54°F), ideal for enjoying the colorful fall foliage. Daytime warmth peaks at a pleasant 21°C (70°F), offering a glimpse of summer's memory before winter's chill approaches. This transition is notable, as October marks a significant drop from September's milder conditions, reflecting the broader trend of cooling as the year progresses. Embracing layers becomes essential, as Cardiff's October charm lies not just in its temperatures but in the vibrant seasonal changes that inspire cozy gatherings and scenic autumn strolls.
October in Cardiff ushers in a significant increase in precipitation, with an impressive 135 mm (5.3 in) of rainfall spread over 16 days. This marks the wettest month of the year, reflecting a notable shift from the milder conditions of September, which recorded 81 mm of rain over just 12 days. As autumn deepens, Cardiff experiences its highest number of precipitation days, indicating that the weather becomes progressively more unsettled. This trend of increasing rainfall continues through to December, highlighting the transition to winter that Cardiff residents can expect as they prepare for the wetter months ahead.
As October arrives in Cardiff, humidity levels make a notable uptick, averaging an impressive 89%. This increase marks a transition from the milder, yet still humid months of summer and early autumn. Following September's 79% humidity, October reflects a trend of rising moisture levels as the city steers into the chill of late autumn. This spike hints at the approaching winter months, where humidity often hovers around 90% in November, creating a distinctly damp atmosphere. Thus, October serves as a precursor to Cardiff's typically soaked winter, reinforcing the city's reputation for its lush and humid climate.
As October rolls into Cardiff, the UV Index settles at a moderate level of 4, providing a welcome break from the intense exposure seen in the peak summer months. Compared to the high indices of June and July, where the burn time is a mere 15 minutes, this autumn month allows for a safer 30-minute outdoor exposure. The trend shows a shift from the very high categories of summer, gradually descending to the low levels by November, where the UV Index drops back to 2. October’s moderate rating indicates a good time for outdoor activities while reminding us that sun safety should still be on our radar. For more details, check the full report on Cardiff UV Index.
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As October graces Cardiff with its presence, the city enjoys a respectable 224 hours of sunshine, marking a gentle transition from the sun-drenched summer months. This is notably less than the peak summer sunshine in July, which boasts a vibrant 399 hours, yet still offers a warm glow compared to the drearier winter months ahead. While the daylight diminishes, the mild autumn atmosphere encourages outdoor escapades, making it a lovely time to witness the changing leaves. From the exuberance of May with 379 hours to the diminishing light of November’s 121 hours, October serves as a key bridge, capturing the essence of both summer's closure and autumn's embrace. Ultimately, this month reminds Cardiff's residents that although the sunny days are dwindling, there's still plenty to enjoy before the colder months settle in.
In Cardiff, the likelihood of sunny weather in October stands at a modest 21%, mirroring the conditions seen earlier in the year, particularly in January and December. This statistic highlights a trend where October experiences a dip in sunshine, much like the preceding summer months. Following a more promising spring in April with a 52% chance of sun, the subsequent decline is evident as the season transitions into autumn. As October settles in, the city prepares for shorter days and increased cloud cover, reinforcing the notion that while Cardiff may enjoy pockets of sunlight, the likelihood of consistently bright days becomes less reliable as winter approaches.
As October unfolds in Cardiff, the city experiences a shift in daylight duration, offering about 10 hours of natural light each day. Following the sun-kissed heights of summer, which boasted up to 16 hours of daylight, October’s shorter days signal a transition towards winter. This period provides a graceful decline from the bright 15 hours seen in May, gradually moving through 12 hours in September, before settling into November's early darkness of 8 hours. The rhythm of daylight in Cardiff showcases the changing seasons, inviting residents and visitors alike to savor the rich autumn hues under an ever-fading sun.
As October sweeps into Cardiff, the wind begins to pick up, averaging 4.8 m/s (11 mph), marking a notable transition from the calmer summer months. This shift mirrors an upward trend from the lows of July and August, which recorded wind speeds of just 3.4 m/s (8 mph) and 4.2 m/s (9 mph) respectively. The brisk air signifies autumn's arrival, with a refreshing blend of crispness and energy that invigorates the city. As the month progresses, the winds hint at the forthcoming chill of winter, yet they also carry the vibrant essence of the season, making October a dynamic time in Cardiff. Overall, the month stands out for its moderate gusts that are both refreshing and engaging, setting the stage for the colder days ahead.
The weather in Cardiff 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 Cardiff and find detailed weather information for every month.
October and January present contrasting weather conditions. In October, temperatures range from a minimum of 1°C (33°F) to a maximum of 21°C (70°F), with an average of 12°C (54°F). The month is relatively wet, experiencing about 135 mm (5.3 in) of precipitation over 16 days, while humidity hovers around 89%. In contrast, January sees colder temperatures, with a minimum of -3°C (27°F) and a maximum of 13°C (56°F), averaging 6°C (42°F). Precipitation decreases to 75 mm (3.0 in) over just 12 days, and humidity remains slightly lower at 88%. For more detailed information, you can check Cardiff weather in January.
October and February present contrasting weather patterns, reflecting the shift from autumn to late winter. In October, temperatures range from a chilly 1°C (33°F) at night to a mild 21°C (70°F) during the day, with an average of 12°C (54°F). The month is characterized by significant rainfall, totaling 135 mm (5.3 in) over 16 days, and a high humidity level of 89%. In comparison, February experiences cooler temperatures, with lows dipping to -4°C (26°F) and a maximum of 15°C (60°F), averaging around 6°C (44°F). While February sees less rainfall at 101 mm (4.0 in) over 14 days and slightly lower humidity at 88%, it remains a notably chilly month. For more details, check out Cardiff weather in February.
In comparing the weather of October and March, notable differences emerge in both temperature and precipitation. October experiences a milder range, with minimum temperatures around 1°C (33°F) and an average of 12°C (54°F), peaking at 21°C (70°F). In contrast, March tends to be cooler, with lows dropping to -5°C (22°F) and an average of 7°C (45°F), although it can still reach a comfortable maximum of 18°C (65°F). Precipitation levels in October are higher, totaling 135 mm (5.3 in) over 16 days compared to March's 97 mm (3.8 in) over 15 days. Humidity is relatively high in both months, with October at 89% and March slightly lower at 86%. For those planning to visit, more details can be found here: Cardiff weather in March.
When comparing the weather in October and April, notable differences emerge in temperature and precipitation patterns. October tends to be warmer, with average temperatures ranging from a minimum of 1°C (33°F) to a maximum of 21°C (70°F), while April presents cooler averages, from -1°C (30°F) to a maximum of 20°C (69°F). In terms of precipitation, October is considerably wetter, receiving 135 mm (5.3 in) over 16 days compared to April's 57 mm (2.2 in) across 10 days. Additionally, October's humidity is slightly higher at 89%, compared to April's 84%, indicating a somewhat damp atmosphere as the autumn season sets in. For a closer look at seasonal weather details, you can visit Cardiff weather in April.
In comparing October and May, both months in Cardiff exhibit mild average temperatures, ranging from a minimum of 1-2°C (33-35°F) and an average of 12°C (54°F). However, October tends to be cooler and wetter, with maximum temperatures peaking at 21°C (70°F) and experiencing 135 mm (5.3 in) of rain over 16 days, contrasted with May's warmer maximum of 24°C (76°F) and significantly lower precipitation of 79 mm (3.1 in) across 12 days. Additionally, October's humidity is higher at 89%, in comparison to May's 80%, which can make the October days feel a bit more damp. For more details on the conditions specific to May, you can visit Cardiff weather in May.
In comparing the weather between October and June, we see notable differences in temperature and precipitation. October brings cooler temperatures with a minimum of 1°C (33°F) and an average of 12°C (54°F), while June enjoys milder conditions with a minimum of 7°C (45°F) and an average of 15°C (60°F). The maximum temperature in June can reach up to 27°C (82°F), significantly warmer than October's maximum of just 21°C (70°F). Precipitation also varies, with October receiving more rainfall at 135 mm (5.3 in) over 16 days compared to June's 84 mm (3.3 in) over 12 days. Additionally, October's humidity levels are higher at 89%, in contrast to June's 80%. For more detailed insights on the warmth of June, check out Cardiff weather in June.
When comparing the weather in October and July, distinct differences emerge. October experiences cooler temperatures, with a minimum of 1°C (33°F) and an average of 12°C (54°F), while July boasts warmer conditions, starting with a minimum of 9°C (48°F) and an average of 17°C (63°F). Additionally, July is generally drier, receiving 85 mm (3.3 in) of precipitation over about 12 days, compared to October's 135 mm (5.3 in) over 16 days. The humidity is notably higher in October, reaching 89% compared to July's 70%, making October feel more damp and chillier than the warm and relatively pleasant July weather. For a closer look at July weather, check out Cardiff weather in July.
In comparing the weather of October and August, October presents a marked shift towards cooler conditions, with temperatures ranging from a minimum of 1°C (33°F) to a maximum of 21°C (70°F) and an average of 12°C (54°F). In contrast, August enjoys milder temperatures, featuring a minimum of 9°C (48°F) and reaching up to 29°C (84°F), with an average temperature of 17°C (62°F). Rainfall also differs significantly, as October experiences more precipitation at 135 mm (5.3 in) over 16 days, compared to August's 97 mm (3.8 in) over 13 days. Additionally, October’s humidity is notably higher at 89%, whereas August has a more comfortable humidity level at 73%. For more details on the weather in August, you can check Cardiff weather in August.
In comparing the weather between September and October, October tends to be cooler and wetter. The average temperature in October ranges from a minimum of 1°C (33°F) to a maximum of 21°C (70°F), with an average of 12°C (54°F). In contrast, September features milder temperatures, peaking at 27°C (81°F) and an average of 15°C (59°F), with minimums around 4°C (40°F). Precipitation also increases in October, with 135 mm (5.3 in) falling over 16 days, compared to September's 81 mm (3.2 in) over 12 days. Humidity is higher in October as well, averaging 89% versus 79% in September. For more detailed information, check Cardiff weather in September.
October and November present a marked transition in weather conditions. October boasts a broader temperature range, with minimums around 1°C (33°F) and maximums reaching up to 21°C (70°F), leading to a pleasant average of 12°C (54°F). In contrast, November sees slightly cooler temperatures, with lows dipping to -1°C (30°F) and maximums of 16°C (61°F), resulting in a lower average of 9°C (48°F). While October experiences higher precipitation levels (135 mm) over 16 days, November's rainfall is somewhat reduced at 99 mm across 15 days. Both months are characterized by high humidity, with November marginally higher at 90% compared to October's 89%. For more detailed insights into the weather in November, you can visit Cardiff weather in November.
In comparing the weather of October and December, October tends to be warmer, with average temperatures ranging from a minimum of 1°C (33°F) to a maximum of 21°C (70°F), while December's temperatures drop significantly, varying from a minimum of -4°C (26°F) to a maximum of 13°C (56°F). Both months experience high humidity levels around 89%, creating a damp atmosphere. Precipitation is also quite similar, with October receiving 135 mm (5.3 in) over 16 days, and December slightly less at 130 mm (5.1 in) over 17 days. This shows that while both months are wet, October is generally milder in temperature. For a closer look at December’s weather patterns, check out Cardiff weather in December.
As autumn settles in, October in Cardiff presents a distinct shift in weather compared to the milder summer months. Temperatures begin to dip, with cooler evenings and noticeably brisk days, making it a transitional period as the city prepares for winter. Frequent rain showers are common, resulting in a higher number of precipitation days and an overall humidity of 89%, which adds to the damp atmosphere. While the maximum temperature can still reach around 21°C, the average cools down significantly to 12°C. For those looking to understand how Cardiff's weather evolves throughout the year, you can explore more at Cardiff Climate.