September Weather in West Kirby, United Kingdom

Last updated: March 17, 2025

September in West Kirby, United Kingdom, offers a dynamic weather experience characterized by temperature variations from a maximum of 27°C (81°F) to a cool minimum of 3°C (37°F), with an average hovering around 14°C (57°F). Visitors can expect a fairly wet month, as the area receives approximately 94 mm (3.7 in) of precipitation over 14 days, contributing to a humidity level of about 85%. This blend of mild warmth and occasional rainfall creates a unique atmosphere, ideal for those looking to enjoy the shifting seasons along the picturesque coastline.

September Temperature in West Kirby

As September unfolds in West Kirby, the temperatures begin to reflect the transition from summer to autumn. With minimums dropping to 3°C (37°F) and average temperatures resting at a comfortable 14°C (57°F), the month marks a noticeable shift in the climate. The maximum daily highs can still reach a pleasant 27°C (81°F), offering the last glimpses of warmth before the cooler months set in. This blend of late-summer warmth and early-autumn crispness makes September a delightful time to explore the coastal charm of West Kirby, as the landscape transforms with the changing season.

September Weather in West Kirby: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in West Kirby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec424345485459626157524643
Data source: Temperature data for West Kirby generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in West Kirby

In September, West Kirby experiences a significant amount of rainfall, with precipitation averaging 94 mm (3.7 in) over 14 days. This marks a continuation of the wet pattern established in the preceding months, as the late summer's heavy August showers transition seamlessly into autumn's steady drizzles. While precipitation in September mirrors October, it is notably lower than the 98 mm seen in August. The consistency of wet days throughout the month hints at an increasingly variable climate, suggesting that residents should prepare for the lingering dampness typical of the region as it heads into the fall.

September Precipitation Trends in West Kirby

The chart displays monthly precipitation patterns in West Kirby, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6577845368949698949478101
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in West Kirby

As September rolls into West Kirby, the humidity tends to settle at a comfortable 85%, marking a subtle increase from August's 79%. This transition reflects a broader trend where humidity levels generally rise in the latter half of the year, peaking in the cooler months. After a dip in the summer, humidity levels typically ascend, culminating in a 90% high by October. The moderate September humidity, while higher than the summer lows, provides a refreshing atmosphere that heralds the onset of autumn, bridging the gap between the dry warmth of the summer and the brisk chill of the subsequent months. Overall, the shifting humidity in West Kirby showcases the region's distinctive maritime climate, characterized by its lush, verdant landscapes that thrive in these moist conditions.

September Average Humidity in West Kirby

This chart illustrates the average monthly humidity levels in West Kirby, 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.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%85%79%81%78%79%85%90%91%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in West Kirby

As September unfolds in West Kirby, the UV Index settles at a moderate level of 5, reflecting a transition from the intense summer months. Following the heights of July and August, which reached 8, the UV levels now require a balanced approach to sun exposure—around 30 minutes before skin starts to burn. This trend signifies a gradual decrease in sun intensity as autumn approaches, allowing residents and visitors to enjoy outdoor activities while still maintaining sun safety. For more detailed insights on UV levels throughout the year, explore the comprehensive guide on West Kirby UV Index.

Maximum UV Index Levels in West Kirby for September

The chart shows the monthly maximum UV Index (UVI) for West Kirby 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.
JanFebMarAprMayJunJulAugSepOctNovDec123578875421
Data source: West Kirby 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 West Kirby

September in West Kirby brings a delightful transition, as the sun shines for 286 hours, hinting at the tail end of summer's embrace. This month continues the trend of abundant sunlight established from April to August, where days basked in warmth and clarity, peaking in July with an impressive 396 hours. Although September's hours drop significantly compared to the earlier summer months, they still outshine the darker days of autumn to come, like those in November and December, with their meager 109 and 95 hours respectively. As the days shorten, the lingering sunlight invites a reflective close to the summer, reminding residents of the beauty of West Kirby before autumn settles in.

Monthly Sunshine Duration in West Kirby: September Highlighted

The September sunshine duration represents the total number of hours West Kirby 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.
JanFebMarAprMayJunJulAugSepOctNovDec85h147h202h316h390h365h396h360h286h219h109h95h
Data source: West Kirby September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in West Kirby During September

In West Kirby, September typically offers a 22% chance of sunny weather, a slight dip from the summer months. As the season transitions, this percentage reflects an overall trend of diminishing sunshine compared to the brighter April (47%) and the relatively sunnier July (36%). While September does not boast a particularly high likelihood of clear skies, it still outperforms the chillier months to follow, such as October and December, which drop to 20% and 16%, respectively. Thus, while September may not be the sunniest month, it retains a fighting chance for enjoying some rays before the autumn fully sets in.

Percentage of Sunny Days in September in West Kirby

The chart illustrates the percentage of sunny days in West Kirby 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 West Kirby experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec21%25%25%47%29%25%36%24%22%20%26%16%
Data source: West Kirby September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in West Kirby in September

As September arrives in West Kirby, the days begin to shorten, with daylight totaling 12 hours—a gentle ebb from the sun-kissed heights of summer. After basking in the longest days of June and July, where up to 16 hours of daylight graced the region, September signals a transition into the cozy embrace of autumn. With daylight gradually dwindling from August's 14 hours, this month offers a delightful mix of lingering warmth and the crisp hints of fall. As the days continue to shift toward winter, the rhythm of light and shadow weaves a beautiful tapestry that reflects the changing seasons, inviting residents to enjoy the fading daylight before autumn calls for its early nights.

Average Daylight Hours in West Kirby for September

The chart illustrates the variation in daylight duration in West Kirby throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 8m9h 50m11h 54m14h 1m15h 53m16h 52m16h 20m14h 39m12h 37m10h 30m8h 37m7h 35m
Data source: West Kirby daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in West Kirby

As summer winds down and September arrives in West Kirby, the average wind speed settles at a gentle 2.9 m/s (6 mph), mirroring the calmer breezes of July and June. This marks a noticeable drop from the energetic gusts of earlier months, inviting a more serene atmosphere as the days grow shorter. Following a trend from the warmer months, where average wind speeds typically hovered between 2.6 m/s and 3.7 m/s, September’s winds reflect a transitional phase, preparing the region for the brisk air of autumn. With a seasonal shift on the horizon, September's gentle breezes seem to whisper of change, foreshadowing the stronger gusts that will return in October.

Average September Wind Speed in West Kirby

The chart displays monthly wind speed patterns in West Kirby, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.84.64.43.03.72.92.63.22.9 m/s4.44.14.4
Data source: West Kirby September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in West Kirby Compares to Other Months

The weather in West Kirby 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 West Kirby and find detailed weather information for every month.

September and January weather showcase a striking contrast in temperatures and conditions. In September, temperatures range from a mild 3°C (37°F) at night to a warm 27°C (81°F) during the day, with an average of 14°C (57°F). The month experiences significant rainfall, totaling 94 mm (3.7 in) over 14 days, accompanied by relatively high humidity at 85%. In contrast, January sees cooler temperatures with a minimum of -3°C (27°F) and a maximum of 14°C (57°F), averaging around 5°C (42°F). This month records less precipitation, at 65 mm (2.6 in) over 11 days, and slightly higher humidity at 89%. For more details on the January weather, visit West Kirby weather in January.

In September, temperatures range significantly from a cool 3°C (37°F) at night to a warm 27°C (81°F) during the day, with an average of 14°C (57°F). The month experiences a considerable amount of rainfall, totaling 94 mm (3.7 in) over about 14 days, accompanied by a high humidity level of 85%. In contrast, February presents a much chillier climate, with temperatures dipping to a minimum of -4°C (25°F) and peaking at 17°C (63°F), averaging around 6°C (43°F). Though February sees slightly less rainfall at 77 mm (3.0 in) across the same number of days, the humidity remains high at 88%. For more insights on February weather, you can check out West Kirby weather in February.

September and March present distinct weather patterns, showcasing the transition between summer and winter. In September, temperatures range from a low of 3°C (37°F) to a comfortable high of 27°C (81°F), with an average of 14°C (57°F), making it warmer and more pleasant. The month experiences around 94 mm (3.7 in) of precipitation over 14 days and humidity levels around 85%.

In contrast, March features a cooler climate, with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 20°C (68°F), averaging just 7°C (45°F). Precipitation is slightly lower at 84 mm (3.3 in) across 15 days and a marginally higher humidity of 86%. For a deeper dive into March weather, you can visit West Kirby weather in March.

Comparing the weather between September and April reveals distinct seasonal differences. In September, temperatures range from a minimum of 3°C (37°F) to a maximum of 27°C (81°F), with an average of 14°C (57°F). In contrast, April's temperatures are cooler, swinging from a minimum of -1°C (31°F) to a maximum of 22°C (72°F), averaging at 9°C (48°F). Additionally, September experiences more rainfall with 94 mm (3.7 in) over 14 days, compared to April's 53 mm (2.1 in) over just 10 days. Humidity levels are relatively similar, hovering around 85% in September and 84% in April, making both months feel quite moist. For more detailed weather information, check out West Kirby weather in April.

In comparing the weather conditions of September and May, September tends to be warmer overall, with average temperatures reaching 14°C (57°F) and maximums soaring up to 27°C (81°F). In contrast, May has slightly cooler temperatures, averaging around 12°C (54°F) and peaking at a maximum of 26°C (80°F). Both months experience fairly high humidity, but September is a bit more humid at 85%, compared to May’s 79%. Additionally, September receives more rainfall, with 94 mm (3.7 in) spread over 14 days, whereas May sees less precipitation at 68 mm (2.7 in) over 12 days. For more specific insights on May's weather, you can refer to West Kirby weather in May.

When comparing the weather in September and June, we notice some distinct differences. September has a wider temperature range, with minimums of 3°C (37°F) and maximums reaching 27°C (81°F), resulting in an average temperature of 14°C (57°F). In contrast, June starts off slightly warmer, with minimum temperatures of 6°C (44°F) and maximums of 29°C (84°F), yielding an average of 15°C (60°F). Both months receive similar levels of precipitation, with September seeing 94 mm (3.7 in) over 14 days and June also at 94 mm (3.7 in) but over just 13 days. Humidity levels are a bit higher in September at 85%, compared to June's 81%. For more details on June weather, you can visit West Kirby weather in June.

In comparing the weather between September and July, we see notable differences in temperature and humidity. September tends to have cooler temperatures, with a minimum of 3°C (37°F) and an average of 14°C (57°F), while July is warmer, featuring a minimum of 7°C (45°F) and an average of 17°C (62°F). Additionally, July sees slightly higher maximum temperatures, reaching up to 29°C (84°F), compared to September’s maximum of 27°C (81°F). Both months experience similar levels of precipitation, with September at 94 mm (3.7 in) over 14 days and July slightly higher at 96 mm (3.8 in) over 15 days. Humidity levels are also different, being higher in September at 85% compared to 78% in July, making September feel a bit more humid. For more details, check out West Kirby weather in July.

In comparing the weather of September to that of August, September tends to be cooler and wetter. September's temperatures range from a minimum of 3°C (37°F) to a maximum of 27°C (81°F), with an average of 14°C (57°F). In contrast, August features milder temperatures, with a minimum of 7°C (45°F) and a maximum of 29°C (84°F), averaging 16°C (61°F). Both months are fairly rainy, with September recording 94 mm (3.7 in) of precipitation over 14 days, slightly less than August's 98 mm (3.9 in) across 17 days. Additionally, September has higher humidity at 85%, compared to August's 79%. For more details on August weather, you can check West Kirby weather in August.

In September, temperatures range from a mild 3°C (37°F) at night to a warm 27°C (81°F) during the day, with an average of 14°C (57°F). The month experiences about 94 mm (3.7 in) of precipitation over approximately 14 days, accompanied by a high humidity level of 85%. In contrast, October brings cooler temperatures, with nighttime lows dipping to -2°C (29°F) and daytime highs reaching 21°C (71°F), averaging around 11°C (52°F). Despite the similar total precipitation of 94 mm (3.7 in), October sees slightly more rainy days at 16, and the humidity increases to 90%. For more details on specific forecasts, you can check West Kirby weather in October.

In comparing the weather between September and November, it's clear that November presents a notable drop in temperatures. September boasts an average of 14°C (57°F) with maximums reaching 27°C (81°F), making it the warmer of the two months. In contrast, November sees average temperatures falling to 8°C (47°F), with highs only reaching 16°C (61°F). Precipitation levels are also significant, with September receiving 94 mm (3.7 in) over 14 days, while November experiences slightly less at 78 mm (3.1 in) across 16 days. Additionally, humidity rises in November to 91%, compared to September's 85%. For more detailed information, you can check West Kirby weather in November.

In comparison to September, December experiences significantly cooler temperatures, with average highs dropping from 27°C (81°F) to just 14°C (57°F). While September boasts a more comfortable minimum temperature of 3°C (37°F), December can see lows plummet to -4°C (26°F). Both months are relatively wet, but December has slightly higher precipitation, totaling 100 mm (4.0 in) over 17 days, compared to September's 94 mm (3.7 in) over 14 days. Additionally, humidity levels rise slightly from 85% in September to 89% in December. For more detailed weather information, check out West Kirby weather in December.

Compare West Kirby's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in West Kirby

As September unfolds in West Kirby, the weather showcases a unique transition from the warmth of summer to the crispness of autumn. With average temperatures settling around a mild 14°C (57°F) and peaks reaching up to 27°C (81°F), the month offers a pleasant yet fluctuating climate. However, this September vibe is complemented by a notable 85% humidity and 14 days of rainfall, marking a shift toward the wetter conditions often expected in the fall. This blend of warmth and increased precipitation sets September apart as a time of change, signaling the onset of cozy sweater weather. For a deeper dive into West Kirby's evolving climate, visit West Kirby Climate.