September Weather in Tintern, United Kingdom

Last updated: March 17, 2025

September in Tintern, United Kingdom, offers a captivating blend of warm days and crisp evenings. With a maximum temperature reaching a delightful 29°C (84°F), and a comfortable average of 14°C (58°F), visitors can enjoy the stunning scenery in pleasant weather. However, as the season transitions, temperatures can dip to a minimum of 3°C (38°F), reminding us of autumn's approach. Rainfall is modest, totaling 54 mm (2.1 in) over 8 days, accompanied by a noticeable humidity level of 79%. This month presents an enchanting opportunity to explore Tintern's rich history amid its picturesque landscapes.

September Temperature in Tintern

As summer bids farewell in Tintern, September brings a refreshing shift in temperatures. With minimums hovering around 3°C (38°F), the days begin to cool, while averages settle at a comfortable 14°C (58°F). The excitement of early autumn is palpable, especially as highs can reach up to an inviting 29°C (84°F), reminiscent of the lingering warmth of summer. This transitional month showcases milder days and cooler nights, enticing visitors to explore the scenic beauty of the area, all while enjoying that perfect blend of warmth and crisp air that heralds the onset of fall.

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

The chart illustrates September temperature patterns in Tintern, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414345495460646258534644
Data source: Temperature data for Tintern 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 Tintern

September in Tintern sees a notable shift as summer transitions to autumn, with precipitation amounting to 54 mm (2.1 in) over 8 rainy days. This marks a decrease compared to the relatively wetter preceding months of July and August, which both recorded 75 mm of rain. The lighter rainfall signals the onset of drier weather as autumn approaches, setting the stage for the subsequent increase in precipitation during October. As the landscape slowly changes with the season, Tintern's weather reflects the typical British charm, blending cool breezes with sporadic showers, perfect for enjoying the vibrant autumnal scenery.

September Precipitation Trends in Tintern

The chart displays monthly precipitation patterns in Tintern, 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.
JanFebMarAprMayJunJulAugSepOctNovDec546774527375637554987293
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Tintern

In September, Tintern experiences a noticeable shift in humidity, averaging around 79%. This marks a slight increase from the summer months, where July and August saw lower values of 70% and 73%, respectively. As autumn approaches, humidity levels begin to rise again, reflecting a trend where the latter part of the year is characterized by higher humidity levels, peaking in the colder months. The transition into September serves as a reminder of the impending chill, with moisture levels edging closer to the 80% mark, setting the stage for the wetter conditions that will dominate the fall and winter months.

September Average Humidity in Tintern

This chart illustrates the average monthly humidity levels in Tintern, 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%84%80%80%70%73%79%89%90%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Tintern

As September rolls into Tintern, the UV Index shows a moderate to high reading of 6, reflecting a trend of decreasing intensity from the peak summer months. After experiencing very high levels of UV exposure in July and August, residents can expect a slight reprieve, though caution is still advisable. With a burn time of just 25 minutes, it's essential to protect your skin during outdoor activities. This month bridges the gap between summer’s intensity and the milder conditions of autumn, making it a perfect time to enjoy the outdoors while staying mindful of sun safety. For more detailed information on UV levels throughout the year, visit Tintern UV Index.

Maximum UV Index Levels in Tintern for September

The chart shows the monthly maximum UV Index (UVI) for Tintern 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578876421
Data source: Tintern 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 Tintern

As September arrives in Tintern, the days still bask in a warm glow, with 281 hours of sunshine brightening the month. This follows the peak of summer, where July showcased its brilliance with an impressive 397 hours. The gradual decline from August's 347 hours hints at the transition into autumn, yet September's sunshine remains robust, outshining the gloomier winter months ahead. With October's light dwindling to 229 hours, the rich golden hues of autumn invite locals and visitors alike to savor the lingering warmth before the chill sets in. Overall, September stands as a bridge between the sun-drenched days of summer and the soft, cozy light of fall, making it a cherished time for exploration in the enchanting surroundings of Tintern.

Monthly Sunshine Duration in Tintern: September Highlighted

The September sunshine duration represents the total number of hours Tintern 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.
JanFebMarAprMayJunJulAugSepOctNovDec86h138h192h306h379h360h397h347h281h229h127h105h
Data source: Tintern September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Tintern During September

In Tintern, United Kingdom, the likelihood of enjoying sunny weather in September stands at 27%, mirroring the dappled sunshine of the preceding months. This percentage reflects a gradual pattern through the summer, peaking in April at 51%, before descending as summer wanes. While September offers a blend of lingering warmth and possible sun, it becomes part of a general trend where the chance of sunny days diminishes as the year progresses, with October and November further dropping to 21% and 32%, respectively. Thus, if you're planning a visit, September can still gift you pleasant days to explore the scenic beauty of Tintern, but don't forget to keep an umbrella handy just in case!

Percentage of Sunny Days in September in Tintern

The chart illustrates the percentage of sunny days in Tintern 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 Tintern experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%22%26%51%32%26%39%27%27%22%33%19%
Data source: Tintern September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Tintern in September

As summer transitions into autumn, September in Tintern, United Kingdom offers a delightful blend of lingering brightness and the subtle hint of shorter days ahead. With approximately 12 hours of daylight, September marks a gentle decline from the peak of daylight experienced in the summer months of June and July, which enjoy a lush 16 hours. The gradual dimming from the vibrant 15 hours in May signals the seasonal shift, while still allowing ample time to bask in the beauty of early autumn. As leaves begin to change and harvest activities ramp up, the comforting warmth of daylight recedes, paving the way for the cozy evenings of October, which will soon see daylight drop to just 10 hours. This month serves as a serene bridge between the lively summer and the tranquil fall, providing a perfect backdrop for reflection and connection with nature.

Average Daylight Hours in Tintern for September

The chart illustrates the variation in daylight duration in Tintern throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 21m9h 57m11h 55m13h 55m15h 41m16h 36m16h 6m14h 31m12h 35m10h 35m8h 47m7h 50m
Data source: Tintern daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Tintern

As September sets in Tintern, the winds begin to soften, averaging 3.1 m/s (7 mph), marking a gentle transition into the autumn months. This slight dip in wind speed reflects a broader trend observed throughout the summer, where July and August experienced the calmest winds of the year at 2.9 m/s and 3.6 m/s, respectively. September's mellow breezes bring a serene ambiance to the lush landscapes, contrasting sharply with the brisk gusts of January and December, which both average over 4.1 m/s (9 mph). As the season changes, one can feel the anticipation of autumn in the air, suggesting that the winds will soon pick up again, making way for the distinctive crispness of October.

Average September Wind Speed in Tintern

The chart displays monthly wind speed patterns in Tintern, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.15.14.33.24.03.22.93.63.1 m/s4.33.64.4
Data source: Tintern September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Tintern Compares to Other Months

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

September and January present contrasting weather patterns, with September experiencing a milder climate. In September, temperatures range from a minimum of 3°C (38°F) to a maximum of 29°C (84°F), with an average of 14°C (58°F). The month sees about 54 mm (2.1 in) of precipitation over 8 days, coupled with a humidity level of 79%. In stark contrast, January is much colder, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 14°C (57°F) and an average of 5°C (41°F). It also receives similar precipitation of 54 mm (2.1 in), but spread across 10 days, making it feel damp, with a higher humidity level of 88%. For more details, check out Tintern weather in January.

September and February offer contrasting weather conditions. In September, temperatures range from a pleasant minimum of 3°C (38°F) to a warm maximum of 29°C (84°F), with an average of 14°C (58°F). Though it receives some rainfall, amounting to 54 mm (2.1 in) over about 8 days, the humidity level is relatively lower at 79%. In contrast, February brings cooler temperatures, with lows dropping to -5°C (23°F) and an average temperature of 6°C (43°F), peaking at 18°C (64°F). This month experiences more precipitation, totaling 67 mm (2.6 in) over 13 days, and features higher humidity at 88%. For more details on the February climate, you can check out Tintern weather in February.

September and March present distinct weather patterns, reflecting the transition from summer to autumn and winter to spring, respectively. In September, temperatures range from a minimum of 3°C (38°F) to a maximum of 29°C (84°F), with an average of 14°C (58°F). This month experiences about 54 mm (2.1 in) of precipitation over 8 days, and humidity levels sit at around 79%. In contrast, March sees cooler temperatures, with a minimum of -6°C (21°F) and a maximum of 21°C (70°F), resulting in an average of just 7°C (45°F). Precipitation is higher in March, totaling 74 mm (2.9 in) over 14 days, accompanied by slightly elevated humidity at 86%. For a closer look at the weather specifics in March, you can visit Tintern weather in March.

When comparing the weather between September and April, notable differences emerge in temperature and conditions. September tends to be warmer, with temperatures ranging from a chilly 3°C (38°F) to a pleasant 29°C (84°F) and a comfortable average of 14°C (58°F). In contrast, April features cooler temperatures, seeing a minimum of -3°C (28°F) and a maximum of 23°C (74°F), with an average of just 9°C (49°F). Precipitation levels are quite similar, with September receiving around 54 mm (2.1 in) over 8 days, while April has slightly less at 52 mm (2.0 in) over 9 days. Humidity levels are also slightly higher in April at 84%, compared to September's 79%. For more specific weather details, you can check Tintern weather in April.

When comparing the weather in September to that of May, September typically boasts warmer temperatures, with a range from a chilly 3°C (38°F) to a pleasant 29°C (84°F), while May sees a cooler range of 0°C (33°F) to 26°C (80°F). While both months experience a moderate amount of rainfall, September averages 54 mm (2.1 in) over about 8 days, compared to May's higher average of 73 mm (2.9 in) spread over 12 days. Humidity levels are quite similar, hovering around 79% in September and 80% in May. For more specific insights into weather patterns, you can check Tintern weather in May.

September and June present a notable contrast in weather patterns. In September, temperatures range from a minimum of 3°C (38°F) to a maximum of 29°C (84°F), with an average of 14°C (58°F). This month also sees 54 mm (2.1 in) of precipitation over about 8 days and a humidity level of 79%. June, on the other hand, boasts slightly warmer temperatures, with a minimum of 6°C (44°F) and a maximum of 30°C (87°F), resulting in a bit higher average of 16°C (61°F). Precipitation in June is also greater, with 75 mm (3.0 in) over 12 days and humidity at 80%. For a closer look at conditions specific to this month, check out Tintern weather in June.

In comparing the weather of September and July, we can see notable differences in temperature and precipitation. September experiences a wider temperature range with a minimum of 3°C (38°F) and a maximum reaching up to 29°C (84°F), averaging at 14°C (58°F). Meanwhile, July has milder temperatures, with a minimum of 7°C (46°F) and a maximum of 30°C (87°F), which averages at 18°C (64°F). Although September is generally cooler, it also sees less precipitation overall, with 54 mm (2.1 in) over 8 days, contrasted with July's 63 mm (2.5 in) over 10 days. Additionally, September's humidity is higher at 79%, while July maintains a lower level of 70%. For more specifics on July weather, you can check Tintern weather in July.

When comparing the weather conditions of September to August, we see notable differences. September experiences lower temperatures with a minimum of 3°C (38°F) and an average of 14°C (58°F), compared to August's warmer minimum of 7°C (45°F) and average of 17°C (62°F). The maximum temperatures also decline, with September capping at 29°C (84°F), whereas August reaches up to 32°C (89°F). In terms of precipitation, September has 54 mm (2.1 in) over 8 days, which is less than August's 75 mm (2.9 in) over 11 days, making it a slightly drier month overall. Humidity levels in September are higher at 79%, compared to August’s 73%. For more detailed weather information, you can refer to Tintern weather in August.

September typically offers milder temperatures, ranging from a minimum of 3°C (38°F) to a maximum of 29°C (84°F), with an average of 14°C (58°F). The month sees about 54 mm (2.1 in) of precipitation over approximately 8 days, and humidity levels hover around 79%. In contrast, October brings a noticeable drop in temperatures, with minimums plunging to -1°C (31°F) and an average of 11°C (53°F), peaking at 23°C (73°F). Precipitation increases significantly to 98 mm (3.9 in) over 13 days, and humidity rises to 89%. For a more detailed look at October weather, check out Tintern weather in October.

September and November exhibit notable differences in weather patterns. In September, temperatures typically range from a mild 3°C (38°F) at night to a comfortable high of 29°C (84°F) during the day, with an average temperature of 14°C (58°F). This month sees around 54 mm (2.1 in) of precipitation over approximately 8 days, accompanied by a relative humidity of 79%. In contrast, November brings cooler conditions, with temperatures dropping to a minimum of -2°C (28°F) and averaging 8°C (47°F), while peaking at 17°C (62°F). This month experiences more precipitation, totaling 72 mm (2.8 in) across about 13 days, and a higher humidity level at 90%. For more specific information, you can check Tintern weather in November.

September and December present contrasting weather conditions. In September, temperatures range from a minimum of 3°C (38°F) to a maximum of 29°C (84°F), with an average of 14°C (58°F). Precipitation is relatively moderate at 54 mm (2.1 in) over about 8 days, and humidity sits around 79%. By contrast, December sees much colder temperatures, with a minimum of -8°C (17°F) and a maximum of 14°C (57°F), averaging 7°C (44°F). The month is wetter, receiving 93 mm (3.7 in) of precipitation across 15 days and a higher humidity level of 89%. For more detailed insights, you can check Tintern weather in December.

Compare Tintern's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Tintern

As summer transitions to autumn in Tintern, September showcases a notable shift in weather patterns. With an average temperature that hovers at a refreshing 14°C, this month is marked by a balance of warm days and cooler nights, unlike the peak heat of summer. The air becomes noticeably more humid, and while rain makes its presence felt with an average of 8 precipitation days, the total amount remains relatively moderate. This unique blend of warmth and moisture creates a vibrant atmosphere perfect for exploring the lush surroundings. To learn more about how September's weather in Tintern compares to other months, visit Tintern Climate.