September Weather in Felixstowe, United Kingdom

Last updated: March 17, 2025

In September, Felixstowe, United Kingdom experiences a delightful transition into autumn, with temperatures ranging from a comfortable maximum of 23°C (74°F) to a cooler minimum of 7°C (45°F). The average temperature settles around a mild 16°C (61°F), making it perfect for outdoor activities. However, visitors should be prepared for occasional rain, as the region sees about 57 mm (2.3 in) of precipitation spread across roughly 10 days during the month. With humidity levels hovering around 80%, the air carries a refreshing crispness, offering an ideal backdrop for exploring the scenic coastline and charming local attractions.

September Temperature in Felixstowe

As summer gives way to autumn in September, Felixstowe experiences a noticeable shift in temperature. The month boasts a minimum of 7°C (45°F), providing a gentle start to the cooler season, while the average temperature reaches a comfortable 16°C (61°F). Peak temperatures can soar to a pleasant 23°C (74°F), allowing for lingering warm days. This transition marks a gradual decline from the warmer August highs, yet remains mild enough for outdoor activities. September acts as a bridge between the summery warmth and the crispness of autumn, making it a delightful time to enjoy the coastal town's scenic beauty.

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

The chart illustrates September temperature patterns in Felixstowe, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414345485461646460554844
Data source: Temperature data for Felixstowe 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 Felixstowe

In September, Felixstowe experiences a mild transition in rainfall, with a total precipitation of 57 mm (2.3 in) spread across about 10 days. This marks a notable shift from the wetter conditions of August, which recorded 75 mm (2.9 in), suggesting that the summer's peak rainfall is beginning to taper off. Following a trend seen through the year, precipitation remains fairly consistent during this month, reflecting an overall pattern of moderate rainfall that peaks in the late months. As autumn sets in, locals can anticipate a gradual increase in precipitation leading into October, which typically sees a significant rise to 92 mm (3.6 in), hinting at the wetter months that lie ahead.

September Precipitation Trends in Felixstowe

The chart displays monthly precipitation patterns in Felixstowe, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5964562557646675579255101
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Felixstowe

As summer gives way to autumn, September in Felixstowe experiences a noticeable shift in humidity, settling at 80%. This marks a rebound from the drier months of July and August, where humidity levels dipped to 76% and 73%, respectively. Interestingly, the trend reveals a steady decline in humidity from the beginning of the year, starting at a high of 91% in January and gradually decreasing until midsummer. However, as the year progresses into fall, humidity begins to rise once again, indicating a return to the moist conditions typical of the late year, where it peaks again in November and December at 92%. This cyclical pattern suggests that while September offers some respite from the intense summer humidity, the characteristic dampness of the British climate is never far behind.

September Average Humidity in Felixstowe

This chart illustrates the average monthly humidity levels in Felixstowe, 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.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%82%81%76%73%80%89%92%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Felixstowe

As September arrives in Felixstowe, United Kingdom, the UV Index shows a moderate level of 5, offering a slight dip from the heights of summer but still requiring awareness. With a burn time of approximately 30 minutes, it's essential for sun-seekers to strike a balance between enjoying the waning warmth and protecting their skin. This month marks a transition as the UV levels decrease from the high readings of July and August, yet they remain higher than the winter months, indicating that while temperatures may begin to cool, UV exposure can still pose a risk. As you venture outdoors, consider this trend and enjoy the milder sun while staying protected. For more insights on UV levels year-round, check out the complete Felixstowe UV Index.

Maximum UV Index Levels in Felixstowe for September

The chart shows the monthly maximum UV Index (UVI) for Felixstowe 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Felixstowe 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 Felixstowe

September in Felixstowe, United Kingdom, ushers in a transition from the sun-soaked days of summer to the crispness of autumn, boasting an impressive 314 hours of sunshine. This marks a notable decline from the peak summer months, where sunshine hours reach their zenith with July at 416 hours. As the season shifts, September retains a significant amount of daylight, showcasing a strong summer afterglow, particularly when compared to the considerably lower totals of January and December. While the month signals the onset of shorter days, it still offers plenty of opportunities to bask in the warm glow, perfectly capturing the essence of early autumn in a coastal charm.

Monthly Sunshine Duration in Felixstowe: September Highlighted

The September sunshine duration represents the total number of hours Felixstowe 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.
JanFebMarAprMayJunJulAugSepOctNovDec94h152h229h344h413h406h416h394h314h244h158h110h
Data source: Felixstowe September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Felixstowe During September

September in Felixstowe, United Kingdom, heralds the transition from the summer's warmth to the cooler embrace of autumn, offering a 33% chance of sunny weather. This likelihood, while modest, aligns closely with the sunniness of both July and August, suggesting that summer’s cheerful disposition lingers just a bit longer. Interestingly, the chance of sunshine begins to dip after the peak of April's 47%, creating a gentle decline into the fall months. With a likelihood of sunny days that mirrors the summer's end, September remains a delightful time to soak in the last rays of sunshine before the cloudier days of October set in.

Percentage of Sunny Days in September in Felixstowe

The chart illustrates the percentage of sunny days in Felixstowe 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 Felixstowe experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%24%33%47%35%32%39%34%33%25%31%18%
Data source: Felixstowe September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Felixstowe in September

As autumn begins to settle in Felixstowe, September offers a comfortable 12 hours of daylight, marking a gentle transition from the extended sunlit days of summer. This month reflects a gradual decline from the peak of 16 hours experienced in June and July, as daylight wanes and hints of winter start to creep in. Following the vibrant summer months, September provides a balance, with daylight still ample enough for outdoor activities but noticeably shorter than the sun-soaked days of August. As we move closer to October, with its 10 hours of daylight, the shift in seasonal rhythm becomes more pronounced, inviting a cozy atmosphere ahead.

Average Daylight Hours in Felixstowe for September

The chart illustrates the variation in daylight duration in Felixstowe throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 20m9h 56m11h 54m13h 55m15h 41m16h 37m16h 7m14h 32m12h 35m10h 35m8h 47m7h 49m
Data source: Felixstowe daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Felixstowe

As September arrives in Felixstowe, UK, the wind begins to soften, with an average speed of 4.5 m/s (10 mph) marking a noticeable decline from the breezier summer months. Following the dynamic winds of July and August, September's gentle gusts beckon a more serene atmosphere as autumn edges closer. This transition, characterized by a retreat from the peak winds of earlier months, reflects a gradual cooling trend. Notably, October will pick up once more, but for now, the calm of September sets the stage for cozy seaside strolls and the vibrant hues of fall, inviting residents and visitors alike to bask in the beauty of the changing season.

Average September Wind Speed in Felixstowe

The chart displays monthly wind speed patterns in Felixstowe, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.96.25.54.75.34.14.75.24.5 m/s6.15.35.8
Data source: Felixstowe September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Felixstowe Compares to Other Months

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

In September, the weather is milder and more pleasant, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 23°C (74°F), creating an average of 16°C (61°F). The month experiences around 57 mm (2.3 in) of precipitation over 10 days, alongside a relatively high humidity level of 80%. In contrast, January brings much colder conditions, with temperatures dropping to a minimum of -1°C (30°F) and peaking at 13°C (55°F), averaging just 5°C (42°F). Though precipitation is slightly higher at 59 mm (2.3 in) over 11 days, the humidity reaches an even higher level of 91%. For a closer look at January weather specifics, you can find additional information here: Felixstowe weather in January.

In comparing the weather between September and February, there are notable differences in temperature and humidity levels. September boasts a milder average temperature of 16°C (61°F), ranging from a minimum of 7°C (45°F) to a maximum of 23°C (74°F), while February presents a much cooler climate with an average of only 6°C (43°F), dipping as low as -3°C (28°F). Precipitation in February is slightly higher, with 64 mm (2.5 in) falling over 12 days compared to September's 57 mm (2.3 in) over 10 days. Additionally, February has a higher humidity level at 89%, compared to September's 80%. For a detailed look at February weather, visit Felixstowe weather in February.

In September, the weather is generally milder, featuring an average temperature of 16°C (61°F) with daily maximums reaching up to 23°C (74°F). The month experiences a moderate amount of precipitation at 57 mm (2.3 in) over about 10 days, and the humidity sits comfortably at 80%. In contrast, March presents a cooler climate, with an average temperature of 7°C (45°F) and daily maximums that peak at 16°C (61°F). While March sees a similar total of precipitation at 56 mm (2.2 in), it is spread out over slightly more rainy days, totaling 13. Additionally, humidity levels are a bit higher in March at 86%. For more detailed weather information, check Felixstowe weather in March.

September and April showcase distinct weather characteristics, reflective of their positions in the seasonal calendar. September typically offers milder temperatures, with a minimum of 7°C (45°F) and an average of 16°C (61°F), peaking at 23°C (74°F). In contrast, April experiences cooler weather, starting with temperatures as low as 0°C (33°F) and averaging just 9°C (48°F), reaching a maximum of 20°C (69°F).

Precipitation in September is relatively higher, with 57 mm (2.3 in) falling over about 10 days, while April sees lesser rainfall at 25 mm (1.0 in) across 7 days. Additionally, humidity levels are slightly higher in April at 85%, compared to September's 80%. For more detailed information on the weather in April, check out Felixstowe weather in April.

When comparing the weather in September and May, September tends to be slightly warmer, with average temperatures reaching 16°C (61°F) compared to May's 12°C (54°F). Both months share similar precipitation levels, with September recording 57 mm (2.3 in) over 10 days, while May sees 57 mm (2.2 in) across 11 days. Humidity levels are comparable as well, with September at 80% and May a touch higher at 82%. Overall, September offers a milder climate, making it a more comfortable time for outdoor activities. For more details on the weather in May, check out Felixstowe weather in May.

In comparing the weather of September and June, we see that both months offer mild temperatures, with average highs of 23°C (74°F) in September and 24°C (75°F) in June. September features a slightly broader temperature range, with minimums dropping to 7°C (45°F) compared to June's 8°C (47°F). Precipitation levels are fairly similar, with September receiving 57 mm (2.3 in) over 10 days, while June has a slightly higher total of 64 mm (2.5 in) over 9 days. Humidity levels are also comparable, hovering around 80% in September and 81% in June. For a more detailed look at June weather, you can check out Felixstowe weather in June.

In comparing the weather of September and July, September tends to be cooler, with minimum temperatures averaging 7°C (45°F) compared to July's warmer minimum of 11°C (52°F). The average temperature in September is 16°C (61°F), while July sees a higher average of 18°C (64°F), peaking at 28°C (83°F) in July. Interestingly, both months experience significant precipitation, with September receiving 57 mm (2.3 in) over about 10 days, and July slightly higher at 66 mm (2.6 in) across 13 days. Humidity levels are comparable, hovering around 80% in September and slightly lower at 76% in July. For a more in-depth look at July's weather, you can visit Felixstowe weather in July.

In comparing the weather between August and September, we observe a noticeable shift in both temperature and precipitation patterns. September experiences cooler temperatures, with a minimum of 7°C (45°F) and a maximum of 23°C (74°F), compared to August's warmer range of 10°C (51°F) to 26°C (80°F). Additionally, September sees an average temperature of 16°C (61°F), while August averages 18°C (65°F). Precipitation increases slightly in September, totaling 57 mm (2.3 in) over 10 days, whereas August recorded 75 mm (2.9 in) over 12 days. Interestingly, September also exhibits higher humidity levels at 80% compared to August’s 73%. For more detailed insights, you can check this link: Felixstowe weather in August.

In September, temperatures range from a minimum of 7°C (45°F) to a maximum of 23°C (74°F), with an average of 16°C (61°F). The month experiences around 57 mm (2.3 in) of precipitation over about 10 days and maintains a humidity level of 80%. In contrast, October sees a slight drop in average temperature, with minimums around 4°C (40°F) and maximums reaching 21°C (70°F), yielding an average of 13°C (55°F). This month is wetter, accumulating approximately 92 mm (3.6 in) of rain over about 14 days, and experiences a higher humidity level of 89%. For more detailed information, check out Felixstowe weather in October.

September typically offers a milder climate with average temperatures reaching around 16°C (61°F) and a maximum of 23°C (74°F), while November sees a significant drop in temperatures, averaging only 9°C (48°F) with a maximum of 16°C (62°F). Precipitation levels are fairly similar, with September receiving 57 mm (2.3 in) over approximately 10 days, compared to November's 55 mm (2.2 in) across 11 days. Additionally, November is noticeably more humid, with a humidity level of 92% in contrast to September's 80%. For those looking to explore the specific conditions during this month, you can find more details here: Felixstowe weather in November.

In September, the weather is relatively mild, with average temperatures around 16°C (61°F) and highs reaching up to 23°C (74°F). The month experiences some rain, with approximately 57 mm (2.3 in) of precipitation spread over about 10 days, and humidity levels hover around 80%.

In contrast, December sees a significant drop in temperatures, with averages around 7°C (44°F) and maximums only reaching 13°C (56°F). This month is also wetter, with total precipitation climbing to 101 mm (4.0 in) over approximately 16 days, and humidity rises to a notable 92%. For more details on December weather in Felixstowe, visit Felixstowe weather in December.

Compare Felixstowe's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Felixstowe

As September unfolds in Felixstowe, the weather presents a charming blend of summer's warmth and autumn's gentle embrace. With average temperatures hovering around a mild 16°C and maximums peaking at a comfortable 23°C, the days are still inviting, yet the nights can drop to a brisk 7°C. Unlike the drier summer months, September experiences a notable 57 mm of rainfall over roughly 10 days, bringing a refreshing shift to the landscape as humidity levels climb to 80%. This transitional month not only marks the end of the high summer but also sets the stage for the cozy fall ahead. For an in-depth look at how the weather patterns evolve throughout the year, visit Felixstowe Climate.