September Weather in Hornsea, United Kingdom

Last updated: March 17, 2025

In September, Hornsea, United Kingdom, experiences a pleasant transition into autumn, with a maximum temperature reaching 22°C (72°F) and a comfortable average of 14°C (58°F). The nights cool down, featuring a minimum temperature of 7°C (44°F), inviting cozy evenings. However, this month also brings a fair share of rain, totaling 65 mm (2.6 in) over 12 days, contributing to the region's lush greenery. The humidity remains noticeably high at 85%, adding a slight chill to the air and enveloping Hornsea in a refreshing coastal atmosphere.

September Temperature in Hornsea

In September, Hornsea, United Kingdom, experiences a gentle transition as summer gives way to autumn. With min temperatures around 7°C (44°F) and a comfortable average of 14°C (58°F), the month retains a touch of warmth, peaking at a max of 22°C (72°F). This inviting climate encourages outdoor activities and leisurely strolls along the coastline, while the gradual dip in temperature hints at the cooler months ahead. As the days shorten, September embodies a perfect blend of lingering warmth and the crispness of autumn, making it an ideal time to explore the area’s natural beauty.

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

The chart illustrates September temperature patterns in Hornsea, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414244465257616157534743
Data source: Temperature data for Hornsea 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 Hornsea

September in Hornsea, United Kingdom, continues the trend of moderate precipitation, with 65 mm (2.6 in) of rainfall spread over 12 days. This slight dip in total rainfall compared to August's 79 mm suggests the transition toward autumn, as the weather begins to shift. Interestingly, this month mirrors the precipitation patterns seen in May and March, indicating a consistency in late summer and early autumn rainfall. As the year progresses, Hornsea typically braces for increased rainfall, with October often bringing even heavier downpours, which underscores the shift from the milder summer months to the more unsettled weather of fall.

September Precipitation Trends in Hornsea

The chart displays monthly precipitation patterns in Hornsea, 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.
JanFebMarAprMayJunJulAugSepOctNovDec506662306080637965917581
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Hornsea

As September rolls into Hornsea, the lingering summer warmth is accompanied by increased humidity, reaching 85% this month. This marks a notable rise from the drier days of July and August, which saw humidity levels settle at 76% and 77%, respectively. The gradual uptick in humidity is a precursor to the wetter months ahead, as October and November typically see levels bouncing back to the 90% range. With the transition from the summer's relative dryness to the autumn's embrace of moisture, September serves as a bridge, blending the warmth of summer with the crispness of fall, inviting residents to enjoy the changing scenery amid the returning humidity.

September Average Humidity in Hornsea

This chart illustrates the average monthly humidity levels in Hornsea, 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 Hornsea

In September, Hornsea experiences a moderate UV Index of 5, which indicates that while sun exposure is generally safe, it's wise to take precautions, especially during peak hours. This marks a gentle decline from the very high indices seen in the summer months of June and July, where an index of 8 called for significant sun protection. As autumn approaches, the burn time stretches to 30 minutes, allowing for a bit more leeway compared to May’s high index and shorter burn time of 25 minutes. With cooler days ahead and the UV levels beginning to recede, it's an ideal time to enjoy the outdoors while remaining mindful of skin safety. For more insights and updates on UV levels, check the Hornsea UV Index.

Maximum UV Index Levels in Hornsea for September

The chart shows the monthly maximum UV Index (UVI) for Hornsea 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.
JanFebMarAprMayJunJulAugSepOctNovDec123578875321
Data source: Hornsea 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 Hornsea

As summer fades into autumn, September in Hornsea, United Kingdom, offers a delightful transition with 316 hours of sunshine. While this marks a decline from the sun-soaked days of July, which boasts the highest sunshine tally at 420 hours, September still shines brighter than the winter months ahead. The data reveals a clear upward trend in sunshine hours from the bleakness of January through to the vibrant bloom of May, peaking in the heat of summer. After July, a gradual decrease begins, but as September's golden rays linger, the sun continues to brighten the coastal charm of Hornsea before the shorter days of autumn set in. Whether you’re enjoying a stroll along the beach or exploring local attractions, September’s sunshine is a perfect reminder of summer's last hurrah.

Monthly Sunshine Duration in Hornsea: September Highlighted

The September sunshine duration represents the total number of hours Hornsea 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.
JanFebMarAprMayJunJulAugSepOctNovDec96h156h225h347h398h384h420h382h316h241h143h110h
Data source: Hornsea September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Hornsea During September

In Hornsea, the likelihood of basking in sunny weather during September stands at 30%, reflecting a slight uptick from the summer months. This month's sunshine probability is higher than the bleak winter figures and resembles the somewhat variable nature of early autumn. While it's not as promising as April's peak of 47%, September offers a welcome reprieve from the gray skies of the earlier months, making it an ideal time for outdoor activities and enjoying the last breaths of summer warmth before the chill of October sets in. Overall, while the chances may not be overwhelmingly bright, there's still plenty of reason to hope for sunny moments in this coastal town.

Percentage of Sunny Days in September in Hornsea

The chart illustrates the percentage of sunny days in Hornsea 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 Hornsea experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec26%25%25%47%32%32%36%27%30%23%29%21%
Data source: Hornsea September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Hornsea in September

As September arrives in Hornsea, United Kingdom, the daylight hours begin their graceful descent from the summer peak. Following a vibrant June where daylight stretched to 17 hours, the days gradually shorten, offering 12 hours of sunlight by the end of the month. This decline signifies a transition from the lively, sun-drenched days of summer, with their late sunsets, to the cooler, brisk autumn evenings. The trend of diminishing daylight continues into October, where only 10 hours of daylight can be expected. Such changes remind us of nature's rhythmic cyclical patterns, inviting Hornsea residents to savor the warm hues of early autumn while they last.

Average Daylight Hours in Hornsea for September

The chart illustrates the variation in daylight duration in Hornsea throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h9h 45m11h 54m14h 5m16h 1m17h 2m16h 29m14h 45m12h 38m10h 28m8h 30m7h 26m
Data source: Hornsea daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Hornsea

September in Hornsea brings a gentle shift in the breeze, with an average wind speed of 4.6 m/s (10 mph). As summer wanes, the winds are starting to cool, reflecting a broader trend of decreasing wind speeds during the warmer months. This month’s breeze is slightly steadier than the summer lows of July (3.9 m/s) and June (4.1 m/s), suggesting a transition as the region prepares for the more robust winds of autumn. With October anticipated to ramp up to 6.7 m/s (15 mph), September's winds serve as a calm prelude to the brisk gusts that lie ahead. The scenery in Hornsea remains vibrant, with the softer winds offering a tranquil backdrop to the changing season.

Average September Wind Speed in Hornsea

The chart displays monthly wind speed patterns in Hornsea, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.27.05.94.74.74.13.94.84.6 m/s6.76.65.9
Data source: Hornsea September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Hornsea Compares to Other Months

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

September and January present a stark contrast in weather conditions. In September, temperatures range from a mild 7°C (44°F) to a comfortable maximum of 22°C (72°F), with an average of 14°C (58°F) and relatively high humidity at 85%. The month also experiences some rainfall, totaling 65 mm (2.6 inches) over approximately 12 days. In contrast, January sees colder temperatures, with a minimum of -1°C (31°F) and an average of just 5°C (42°F), peaking at 14°C (57°F). Despite having lower precipitation at 50 mm (2.0 inches) over about 10 days, January's higher humidity at 90% adds to the chill in the air. For more detailed insights, you can check Hornsea weather in January.

In comparing the weather of September and February, notable differences emerge in temperature and conditions. September enjoys a milder climate with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 22°C (72°F), while February experiences colder temperatures, featuring a minimum of -2°C (28°F) and a maximum of only 14°C (57°F). Both months have similar levels of precipitation—around 65-66 mm (2.6 in)—but February tends to be slightly wetter with precipitation occurring on more days, averaging 13 days compared to September's 12. Furthermore, humidity levels are higher in February, reaching 88% compared to September's 85%. For more detailed information, you can explore Hornsea weather in February.

In comparing the weather between September and March, September tends to be milder, with average temperatures ranging from a minimum of 7°C (44°F) to a maximum of 22°C (72°F). In contrast, March experiences cooler temperatures, starting from a minimum of -3°C (27°F) and averaging around 7°C (44°F) at its peak of 16°C (61°F). Precipitation levels are relatively similar, with September receiving 65 mm (2.6 in) over 12 days and March slightly less at 62 mm (2.4 in) over 13 days. Humidity remains high in both months, with September at 85% and March slightly higher at 86%. For more detailed insights on March weather, visit Hornsea weather in March.

In comparing the weather between September and April, September is notably warmer, with average temperatures ranging from a minimum of 7°C (44°F) to a maximum of 22°C (72°F), compared to April's cooler range of 0°C (33°F) to 18°C (65°F). Additionally, September experiences greater precipitation at 65 mm (2.6 in) over 12 days, while April sees only 30 mm (1.2 in) over 8 days. Humidity levels remain relatively similar, with September at 85% and April slightly lower at 84%. For more detailed information, you can check Hornsea weather in April.

In comparing the weather of September and May, we can see notable differences in temperature and precipitation. September features a milder climate with an average temperature of 14°C (58°F), while May is generally cooler, with an average of 11°C (52°F). The maximum temperatures in September reach up to 22°C (72°F), compared to May's high of 20°C (68°F). Precipitation levels are similar, with September receiving 65 mm (2.6 in) over 12 days and May just slightly less at 60 mm (2.4 in) over 11 days. Additionally, September tends to have higher humidity at 85%, compared to 80% in May. For more details on May weather, you can check out Hornsea weather in May.

In comparing the weather between September and June, we notice that both months share similar minimum temperatures, starting at around 7°C (44°F). June tends to be slightly warmer on average, with a maximum of 23°C (73°F) compared to September's 22°C (72°F). Precipitation is somewhat higher in June, totaling 80 mm (3.1 in) over 11 days, while September experiences 65 mm (2.6 in) over 12 days. Additionally, humidity levels are relatively high in both months, with September at 85% and June slightly lower at 81%. For more detailed insights on June's weather, visit Hornsea weather in June.

In comparing the weather of September and July, we find notable differences in temperature and humidity. September features a temperature range from a chilly 7°C (44°F) to a mild 22°C (72°F), with an average of 14°C (58°F), while July is warmer, with temperatures ranging from 10°C (51°F) to a maximum of 25°C (78°F) and an average of 16°C (61°F). Both months receive similar amounts of precipitation, with September recording 65 mm (2.6 in) and July slightly less at 63 mm (2.5 in), though the humidity is higher in September at 85% compared to 76% in July. For more detailed insights about July weather, you can check Hornsea weather in July.

In comparing the weather of September and August, September tends to be cooler with a minimum temperature of 7°C (44°F) and an average of 14°C (58°F), while August enjoys slightly warmer temperatures, starting at a minimum of 10°C (50°F) and averaging 16°C (61°F). The maximum temperatures also reflect this trend, with September peaking at 22°C (72°F) compared to August's 24°C (75°F). Although September experiences slightly more precipitation, totaling 65 mm (2.6 in) over 12 days, August has higher rainfall at 79 mm (3.1 in) across 13 days. Humidity levels are higher in September at 85%, compared to August's 77%. For more detailed information about August weather, check out Hornsea weather in August.

In comparing the weather between September and October, we see a gradual shift towards cooler conditions. September boasts a minimum temperature of 7°C and an average of 14°C, whereas October sees a slight dip with a minimum of 5°C and an average of 12°C. While the maximum temperature in September can reach 22°C, October's maximum is slightly lower at 21°C. Precipitation also increases in October, with 91 mm over 15 days compared to September's 65 mm over 12 days, contributing to a rise in humidity from 85% in September to 90% in October. For a more detailed look at weather specifics, you can refer to this link: Hornsea weather in October.

September experiences milder weather with average temperatures ranging from a minimum of 7°C (44°F) to a maximum of 22°C (72°F), while November is noticeably cooler, with temperatures peaking at 16°C (62°F) and dropping to a minimum of 2°C (35°F). Precipitation increases slightly in November to 74 mm (2.9 in) over 14 days, compared to September’s 65 mm (2.6 in) over 12 days. Humidity is higher in November at 92%, compared to 85% in September, making the latter part of the year feel more damp and chilly. For more details about the weather conditions in November, you can check Hornsea weather in November.

In September, the weather is generally mild, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 22°C (72°F) and an average of 14°C (58°F). The month sees a fair amount of rainfall, totaling 65 mm (2.6 in) across about 12 days, and the humidity is relatively high at 85%. In contrast, December brings a significant drop in temperatures, with a minimum of -1°C (31°F), an average of 6°C (43°F), and a maximum of 13°C (56°F). Precipitation increases slightly to 81 mm (3.2 in) over 16 days, and humidity rises to 90%. For more specific insights on the weather during this month, check out Hornsea weather in December.

Compare Hornsea's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Hornsea

As autumn casts its gentle shadow over Hornsea in September, the weather begins to shift dramatically from the warmth of summer. The average temperature dips to a comfortable 14°C (58°F), offering a refreshing respite from the heat, while the maximum highs hover at 22°C (72°F), creating ideal conditions for outdoor activities. However, the increased precipitation, with about 65 mm falling over 12 days, signals the arrival of more variable weather, making this month notably wetter than its predecessors. Coupled with a high humidity level of 85%, September introduces an atmosphere that teeters between the lingering summer warmth and the freshness of fall. To discover more about how these shifts impact Hornsea's climate year-round, visit Hornsea Climate.