September Weather in Reading, United Kingdom

Last updated: March 17, 2025

In September, Reading, United Kingdom, experiences a dynamic range of weather, characterized by a maximum temperature of 28°C (83°F) and an average of 15°C (59°F), providing a comfortable backdrop for outdoor activities. While the minimum dips to 3°C (37°F), this transitional month brings a rainfall total of 49 mm (1.9 in) over approximately 9 days, contributing to an 82% humidity level. As summer wanes, residents can expect a blend of warm days and cooler evenings, making September a month rich in both warmth and refreshing rainfall.

September Temperature in Reading

In Reading, United Kingdom, September marks a transition into autumn, bringing with it a delightful mix of warmth and coolness. With a minimum temperature of 3°C (37°F) and an average of 15°C (59°F), the month provides a comfortable climate for outdoor activities. Daytime temperatures can peak at a max of 28°C (83°F), reminiscent of late summer, yet the nights start to hint at the cooler months ahead. This delicate balance makes September an ideal time for enjoying the scenic landscapes as leaves begin to change colors, showcasing the beauty of the season. As the days grow shorter, the shift in temperatures signals the arrival of fall, inviting both locals and visitors to embrace the crisp air and vibrant surroundings.

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

The chart illustrates September temperature patterns in Reading, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414345495561656359534643
Data source: Temperature data for Reading 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 Reading

September in Reading, United Kingdom, sees an average precipitation of 49 mm (1.9 in), marking a slight decrease compared to the previous months. With only 9 days of rainfall, this month typically offers a brief respite before autumn sets in, creating a transitional period from summer's lushness to the cooler embrace of fall. Following the more abundant rains of August, which recorded 70 mm (2.8 in), September's fairly moderate moisture level hints at a shift in the season, with the promise of October’s heavier rainfall approaching, expected to reach 95 mm (3.7 in). This trend not only highlights the diminishing summer showers but also foreshadows the wetter conditions that are characteristic of the months ahead.

September Precipitation Trends in Reading

The chart displays monthly precipitation patterns in Reading, 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.
JanFebMarAprMayJunJulAugSepOctNovDec505259376875667049955583
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Reading

September in Reading, United Kingdom, sees a notable humidity level of 82%, marking a mild drop from the summer's average but still significantly higher than the 71% recorded in July. This transitional month hints at the approaching autumn, as the landscape prepares to embrace the cooler temperatures that follow. Notably, humidity levels in Reading tend to climb again in October, reaching 90%, indicating that while September offers a brief respite, the wetter months are close behind. Overall, September serves as a bridge, where lingering warmth interacts with the resurgence of moisture, setting the stage for the drizzly months ahead.

September Average Humidity in Reading

This chart illustrates the average monthly humidity levels in Reading, 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%79%81%71%76%82%91%92%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Reading

As September rolls into Reading, the UV Index settles at 6, maintaining a high exposure category similar to the peak summer months. This indicates that while the intensity of the sun is slightly easing from the blistering highs of July and August, caution is still essential, especially around midday. With a burn time of just 25 minutes, it's wise for residents and visitors to protect their skin when outdoors. Overall, September marks a transition towards more moderate UV levels, paving the way for the cooler months ahead. For more detailed information, check out Reading UV Index.

Maximum UV Index Levels in Reading for September

The chart shows the monthly maximum UV Index (UVI) for Reading 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.
JanFebMarAprMayJunJulAugSepOctNovDec124678876421
Data source: Reading 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 Reading

As summer fades into autumn, September in Reading, United Kingdom continues to bask in a generous 293 hours of sunshine. This month, while noticeably quieter than the peak of July with its impressive 397 hours, still offers a warm embrace as daylight begins to wane. Following a vibrant array of sunlit days in the summer, September acts as a gentle bridge to the cooler months, showcasing a significant decrease from the summer highs but a remarkable retention of brightness compared to the earlier spring months. Notably, sunshine hours in September surpass those of October, which only delivers 237 hours, hinting at the lingering warmth of late summer. Overall, this trend underscores September as a cherished time for outdoor activities, inviting locals and visitors alike to savor the last traces of sunshine before the winter chill sets in.

Monthly Sunshine Duration in Reading: September Highlighted

The September sunshine duration represents the total number of hours Reading 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.
JanFebMarAprMayJunJulAugSepOctNovDec98h146h203h313h388h377h397h359h293h237h144h111h
Data source: Reading September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Reading During September

September in Reading, United Kingdom, brings a 27% chance of sunny weather, making it a time when summer's warmth begins to wane. This moderate likelihood offers a pleasant transition as the days shorten. Interestingly, although September sees a slight drop compared to the more promising spring months like April, where sunshine chances peak at 51%, it remains a stable option ahead of the cooler autumn months. As the seasons shift, the probability of sunny days in September is still favorable compared to the winter months that follow, where chances drop significantly. Enthusiastic locals and visitors alike can relish the lingering warmth and occasional sunny spells before the onset of fall.

Percentage of Sunny Days in September in Reading

The chart illustrates the percentage of sunny days in Reading 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 Reading experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec20%24%28%51%32%26%36%23%27%25%31%17%
Data source: Reading September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Reading in September

As summer gracefully transitions into autumn, September in Reading, United Kingdom sees daylight begin to wane, offering approximately 12 hours of light—a moderate decrease following the sun-soaked months of July and August. This month serves as a bridge between the vibrancy of summer, which boasts up to 16 hours of daylight, and the cooler, shorter days of fall, where sunlight dwindles to around 10 hours by October. The gradual reduction in daylight reflects the shifting seasons, inviting a cozy atmosphere as nature prepares for winter’s rest. With the sun setting earlier, September encourages the enjoyment of the softer hues of twilight, blending the warmth of summer with the crispness of approaching autumn.

Average Daylight Hours in Reading for September

The chart illustrates the variation in daylight duration in Reading throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 24m9h 58m11h 55m13h 54m15h 37m16h 31m16h 3m14h 29m12h 34m10h 36m8h 50m7h 54m
Data source: Reading daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Reading

As we transition into September in Reading, the wind takes on a gently crisp character, averaging a speed of 3.4 m/s (8 mph). This marks a notable change from the warmer summer months, where wind speeds hovered around 3.2 to 3.7 m/s. Interestingly, September’s breeze is softer compared to earlier months in the year, particularly when we see a peak in wind speed during the winter months, like 4.5 m/s in December. Overall, it’s a time where the winds start to signal the approach of autumn, providing a smooth transition from the warmer, more blustery days of summer to the cooler, more vibrant season ahead.

Average September Wind Speed in Reading

The chart displays monthly wind speed patterns in Reading, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.34.94.43.44.33.23.23.73.4 m/s4.43.94.5
Data source: Reading September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Reading Compares to Other Months

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

In September, the weather is quite mild, with average temperatures ranging from a cool 3°C (37°F) at night to a warm 28°C (83°F) during the day. The humidity is relatively high at 82%, and there is an average of 49 mm (1.9 in) of precipitation over about 9 days. In contrast, January brings much colder temperatures, with a minimum of -4°C (25°F) and a maximum of 14°C (58°F). The average temperature drops to just 5°C (41°F), along with an increase in humidity to 91% and similar precipitation at 50 mm (2.0 in) over 9 days. For more details on winter conditions, you can check Reading weather in January.

In comparing the weather patterns of September and February, a notable contrast emerges in temperature and humidity levels. September boasts a temperature range from a mild minimum of 3°C (37°F) to a warm maximum of 28°C (83°F), with an average of 15°C (59°F). In contrast, February experiences much colder temperatures, with a minimum of -8°C (17°F) and a maximum of 18°C (65°F), averaging around 6°C (43°F). While September sees 49 mm (1.9 inches) of precipitation over approximately 9 days, February is slightly wetter with 52 mm (2.0 inches) across about 10 days. Additionally, humidity levels in both months are high, with September at 82% and February slightly higher at 89%. For more details on February weather, visit Reading weather in February.

September and March present distinct contrasts in weather patterns. In September, temperatures range from a cool 3°C (37°F) to a comfortable 28°C (83°F), with an average of 15°C (59°F). The month experiences a notable amount of precipitation, totaling 49 mm (1.9 in) over about 9 days, accompanied by relatively high humidity at 82%. In contrast, March sees lower temperatures, with a minimum of -6°C (22°F) and a maximum of 22°C (71°F), averaging just 7°C (45°F). The month is wetter, with precipitation at 59 mm (2.3 in) spread across 14 days and slightly higher humidity at 86%. For a more detailed look at March weather, you can check Reading weather in March.

September generally offers a warmer climate than April, with average temperatures ranging from a mild 15°C (59°F) to a peak of 28°C (83°F), compared to April's cooler averages of 9°C (49°F) with a maximum of 26°C (79°F). Although both months experience similar levels of humidity, with September at 82% and April slightly higher at 85%, September receives slightly more rainfall, totaling 49 mm (1.9 in) over about 9 days, while April has 36 mm (1.4 in) over 8 days. For more detailed information on April's weather, you can visit Reading weather in April.

In comparing the weather of September and May, September tends to be slightly warmer, with average temperatures reaching 15°C (59°F), compared to May's average of 13°C (55°F). The maximum temperature in September can soar up to 28°C (83°F), whereas in May it peaks at 26°C (78°F). However, May experiences higher precipitation levels, with about 68 mm (2.7 in) over 11 days, compared to September's 49 mm (1.9 in) over 9 days. Humidity levels are quite similar, with September at 82% and May at 79%. For more insights, you can check Reading weather in May.

In comparing the weather between September and June, we can see distinct differences. September features a broader temperature range with a minimum of 3°C (37°F) and a maximum of 28°C (83°F), yielding an average of 15°C (59°F). Meanwhile, June starts warmer, with temperatures ranging from a minimum of 6°C (44°F) to a maximum of 31°C (88°F), resulting in a slightly higher average of 16°C (61°F). Precipitation is also notable, with September receiving 49 mm (1.9 in) over 9 days, compared to June's 75 mm (2.9 in) across 10 days. Humidity levels are fairly similar, with September at 82% and June at 80%. For a more detailed look at June weather, check out Reading weather in June.

In comparing the weather of September and July, we see notable differences in temperature and precipitation. September typically has cooler temperatures, with a minimum of 3°C (37°F), an average of 15°C (59°F), and a maximum of 28°C (83°F), while July offers warmer conditions, with a minimum of 7°C (46°F), an average of 18°C (65°F), and a peak of 35°C (96°F). Additionally, July experiences more rainfall, totaling 66 mm (2.6 in) over 12 days, compared to September's 49 mm (1.9 in) over 9 days. The humidity is notably higher in September at 82%, while July maintains a more comfortable level at 71%. For more details on July's weather, you can visit Reading weather in July.

September weather shows a noticeable shift compared to August, with average temperatures dropping from 17°C (63°F) to 15°C (59°F). The maximum temperature in September reaches 28°C (83°F), which is lower than August's peak of 33°C (92°F), making September feel cooler overall. Additionally, September experiences slightly less precipitation at 49 mm (1.9 in) over 9 days compared to August's 70 mm (2.8 in) over 12 days, and the humidity increases to 82% from August's 76%. For more detailed insights, you can check out Reading weather in August.

September offers a more varied temperature range, with minimums around 3°C (37°F) and maximums reaching up to 28°C (83°F), averaging 15°C (59°F). In contrast, October sees cooler temperatures, starting at a minimum of 0°C (33°F) and peaking at 23°C (73°F), with an average of 11°C (53°F). Furthermore, October experiences increased precipitation, totaling 95 mm (3.7 in) over 13 days, compared to September's 49 mm (1.9 in) across 9 days. The humidity also rises in October, averaging 90% compared to September's 82%. For more details, you can check Reading weather in October.

In September, temperatures generally range from a mild 3°C (37°F) to a warm 28°C (83°F), with an average of 15°C (59°F). The month experiences relatively low precipitation, totaling 49 mm (1.9 in) over about 9 days, and humidity is moderately high at 82%. In contrast, November sees a significant drop in temperatures, with minimums plunging to -2°C (28°F) and an average of just 8°C (46°F), peaking at 16°C (62°F). This month is also wetter, receiving 55 mm (2.2 in) of rain across 12 days, and the humidity creeps up to 92%. For more details on November weather, you can check Reading weather in November.

In September, the weather is generally mild, characterized by a minimum temperature of around 3°C (37°F) and an average of 15°C (59°F), peaking at a comfortable 28°C (83°F). This month sees about 49 mm (1.9 in) of precipitation over approximately 9 days, with humidity levels at 82%. In contrast, December brings a sharper chill, with temperatures ranging from a minimum of -4°C (24°F) to an average of 6°C (43°F) and a maximum of 14°C (58°F). The precipitation increases to 83 mm (3.3 in) spread over 14 days, contributing to a higher humidity level of 92%. For more detailed insights into December's weather, you can visit Reading weather in December.

Compare Reading's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Reading

As September rolls in, Reading experiences a notable shift in weather dynamics compared to the warmer summer months. The average temperatures dip, offering a refreshing coolness, often accompanied by brisk evenings that hint at the approaching autumn. While occasional rainfall brings lushness to the landscape, with about a week of precipitation, the days remain relatively humid, creating a unique ambience. This transition not only enriches the scenery but also invites residents and visitors alike to savor the evolving beauty of the town. For more insights on the climate throughout the year, check out Reading Climate.