September Weather in Newmarket, United Kingdom

Last updated: March 17, 2025

In September, Newmarket, United Kingdom experiences a dynamic shift in weather, showcasing a maximum temperature of 28°C (82°F) while averaging a comfortable 15°C (59°F). The month can be quite variable, with minimum temperatures dipping to 3°C (38°F), creating a diverse climate for residents and visitors alike. With 58 mm (2.3 in) of precipitation spread over 10 days, it's advisable to be prepared for occasional showers. The high humidity level at 84% can make the warm days feel even more intense, lending a unique charm to this bustling equestrian town during the early autumn season.

September Temperature in Newmarket

As September rolls into Newmarket, the summer warmth begins to fade, giving way to milder temperatures. Daily lows settle at around 3°C (38°F), while average temperatures reach a comfortable 15°C (59°F), making outdoor activities enjoyable. The maximum temperature can still soar to 28°C (82°F), offering a pleasant mix of late-summer warmth and the crisp hint of autumn. This transitional month showcases a gentle decline from the scorching highs of July and August, reflecting a trend towards cooler weather, yet maintaining a balance that beckons residents and visitors alike to embrace the outdoors before the chill of October sets in.

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

The chart illustrates September temperature patterns in Newmarket, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec404245485461646459534643
Data source: Temperature data for Newmarket generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Newmarket

September in Newmarket, United Kingdom, typically witnesses a moderate precipitation level, with 58 mm (2.3 in) of rain spread over 10 days. This amount reflects a slight decrease from the wetter months of August and June, which recorded 79 mm (3.1 in) and 75 mm (3.0 in), respectively. As the season transitions into autumn, rainfall becomes less frequent but more significant, paving the way for October's anticipated 83 mm (3.3 in). Overall, September serves as a bridge between the summer showers and the more substantial downpours of the fall, highlighting a trend towards increased moisture as the year progresses.

September Precipitation Trends in Newmarket

The chart displays monthly precipitation patterns in Newmarket, 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.
JanFebMarAprMayJunJulAugSepOctNovDec525354316575667958834785
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Newmarket

In Newmarket, United Kingdom, September ushers in a humidity level of 84%, slightly higher than the summer months of July and August, which experienced their lowest humidity rates at 79% and 78%, respectively. As autumn approaches, there's a noticeable uptick in moisture, in keeping with what is typical for this time of year, as humidity levels begin to mirror the enveloping dampness of the colder months. This pattern is evident as we transition into October, when humidity rises once more to 88%, hinting at the impending chill of winter. Overall, while the summer saw a decline in humidity, September provides a refreshing return to more humid conditions, leading the way into the wetter months ahead.

September Average Humidity in Newmarket

This chart illustrates the average monthly humidity levels in Newmarket, 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%87%86%85%83%83%80%78%84%88%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Newmarket

As summer gives way to autumn, September in Newmarket, United Kingdom, sees a moderate UV Index of 5, signaling a shift in sun exposure patterns. Following the peak UV Index of 8 reached in July and June, the sun’s intensity eases, promoting a burn time of approximately 30 minutes for those basking outdoors. This trend showcases a gradual decline from the summer’s very high risk, making it a welcome time for outdoor activities while still encouraging sun safety. As the seasons transition, October will see the index dip slightly to 4, continuing the moderate trend. For a detailed daily breakdown, visit Newmarket UV Index and stay informed about safe sun practices!

Maximum UV Index Levels in Newmarket for September

The chart shows the monthly maximum UV Index (UVI) for Newmarket 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Newmarket 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 Newmarket

September in Newmarket, United Kingdom, shines brightly with 297 hours of sunshine, marking a gentle transition from the summer months. Following the sun-drenched heights of July and May, which basked in over 390 hours each, September feels like a warm embrace as it bids farewell to summer. While the days grow shorter, the sun still generously graces Newmarket with a substantial amount of light, surpassing the paler beams of October and November. This month serves as a beautiful reminder of the vibrant light that summer brings, setting a rosy backdrop for autumn's arrival. As the year progresses, the trend indicates a gradual decline in sunshine hours, yet September stands as a picturesque month, balancing warmth and the promise of change.

Monthly Sunshine Duration in Newmarket: September Highlighted

The September sunshine duration represents the total number of hours Newmarket 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.
JanFebMarAprMayJunJulAugSepOctNovDec91h148h214h327h397h384h398h372h297h240h146h106h
Data source: Newmarket September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Newmarket During September

In Newmarket, United Kingdom, the likelihood of sunny weather in September hovers around 30%, reflecting a slight increase from the summer's average, yet remaining lower than the peak April figure of 46%. This upward trend in sunshine probability from the cooler months indicates a potential Indian summer as autumn approaches. Compared to the 27% chance of sun in August, September's weather offers a glimmer of hope for clearer skies, although the overall chances are still modest. As the year progresses, with a noted decline into the wetter October (22%), September provides a crucial opportunity to enjoy the last warm rays before the winter gloom sets in.

Percentage of Sunny Days in September in Newmarket

The chart illustrates the percentage of sunny days in Newmarket 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 Newmarket experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec21%24%29%46%32%29%37%28%30%22%29%16%
Data source: Newmarket September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Newmarket in September

As September unfolds in Newmarket, United Kingdom, the daylight hours wane, offering about 12 hours of light each day. This marks a gradual decline from the lush 16 hours experienced in the peak of summer, while still holding onto a generous amount of sunlight compared to the winter months ahead. The shift is part of a noticeable trend throughout the year; daylight increases steadily from January's modest 8 hours to a summer zenith, before tapering off again. As the leaves begin to change and the air cools, September serves as a gentle transition, reminding us of the fleeting nature of summer days while still basking in the comforting glow of early autumn.

Average Daylight Hours in Newmarket for September

The chart illustrates the variation in daylight duration in Newmarket throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 16m9h 54m11h 54m13h 57m15h 45m16h 41m16h 11m14h 34m12h 36m10h 34m8h 44m7h 45m
Data source: Newmarket daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Newmarket

As September unfolds in Newmarket, the average wind speed dips to 3.6 m/s (8 mph), aligning with the more tranquil breezes of late summer. This gentle airflow is a continuation of the milder winds experienced in July and August, both hovering around similar speeds. The trend shows a notable transition from the higher gusts of earlier months, with January’s 4.5 m/s (10 mph) and February’s 4.9 m/s (11 mph) representing the brisker winter winds. Looking ahead, October teases a slight uptick to 4.9 m/s (11 mph), hinting at a return to more vigorous winds as autumn takes hold. Overall, September serves as a serene pause in the region’s wind patterns, inviting a reflective moment before the season shifts once again.

Average September Wind Speed in Newmarket

The chart displays monthly wind speed patterns in Newmarket, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.54.94.73.64.43.43.54.13.6 m/s4.94.34.8
Data source: Newmarket September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Newmarket Compares to Other Months

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

In September, the weather is notably milder, with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 28°C (82°F), averaging around 15°C (59°F). This month experiences more pleasant conditions with 58 mm (2.3 in) of precipitation spread over about 10 days and a humidity level of 84%.

In contrast, January brings much colder temperatures, where the minimum can drop to -5°C (24°F) and the maximum only reaches 14°C (58°F), averaging just 5°C (41°F). Despite slightly less precipitation at 52 mm (2.0 in), January maintains a high humidity at 89%, making it feel even chillier. For more details on January weather, you can visit Newmarket weather in January.

September and February present markedly different weather conditions. In September, temperatures range from a mild 3°C (38°F) at night to a warm 28°C (82°F) during the day, with an average of 15°C (59°F). This month experiences around 58 mm (2.3 inches) of precipitation over 10 days, coupled with a humidity level of 84%. In contrast, February is much colder, with temperatures dipping as low as -6°C (21°F) and peaking at 17°C (64°F), averaging 6°C (43°F). February sees slightly less precipitation at 53 mm (2.1 inches) over 11 days and a higher humidity of 87%. For a closer look at February’s climate, check out Newmarket weather in February.

September and March present contrasting weather patterns. In September, temperatures are generally milder, with averages around 15°C (59°F) and highs reaching up to 28°C (82°F). The month experiences about 58 mm (2.3 in) of rainfall over approximately 10 days, coupled with a relatively high humidity level of 84%. In contrast, March brings cooler conditions, with an average temperature of 7°C (45°F), dipping to a low of -6°C (22°F) and a high of 21°C (70°F). Despite slightly less precipitation at 54 mm (2.1 in) over 13 days, humidity remains elevated at 86%, making it feel chilly. For more detailed information, check Newmarket weather in March.

When comparing the weather in September and April, notable differences emerge. September typically sees milder conditions, with an average temperature of 15°C (59°F) and a maximum of 28°C (82°F), while April's average is cooler at 9°C (49°F), with a maximum of 26°C (79°F). Precipitation is generally higher in September, totaling 58 mm (2.3 in) over about 10 days, compared to April's 31 mm (1.2 in) over 7 days. Humidity remains fairly consistent between the two months, hovering around 84% in September and 85% in April. For more specific insights into April weather, you can check Newmarket weather in April.

In September, the weather typically showcases a wider temperature range, with minimums around 3°C (38°F) and maximums reaching up to 28°C (82°F), resulting in an average temperature of 15°C (59°F). This month experiences approximately 58 mm (2.3 in) of precipitation over about 10 days, accompanied by high humidity levels of 84%. In contrast, May presents slightly cooler conditions, with minimum temperatures of 1°C (34°F) and maximums peaking at 26°C (78°F), averaging 12°C (55°F). May tends to be a bit wetter, with precipitation totaling around 65 mm (2.6 in) over 12 days, while humidity remains fairly consistent at 83%. For a closer look at the weather specifics during May, you can visit Newmarket weather in May.

In comparing the weather of September and June, both months offer mild temperatures, but September tends to be slightly cooler. September features a minimum temperature of 3°C (38°F) and an average of 15°C (59°F), while June's minimum is a bit warmer at 5°C (41°F) and an average of 16°C (61°F). The maximum temperatures are similar, with June reaching up to 29°C (84°F) and September hitting 28°C (82°F). In terms of precipitation, June is slightly wetter, with 75 mm (3.0 inches) over 10 days compared to September's 58 mm (2.3 inches) on the same number of days. Humidity levels are comparable in both months, hovering around 84% in September and 83% in June. For more detailed insights, you can check Newmarket weather in June.

When comparing the weather in September and July, notable differences emerge. September experiences cooler temperatures, ranging from a minimum of 3°C (38°F) to a maximum of 28°C (82°F), with an average of 15°C (59°F). In contrast, July boasts warmer conditions with minimum temperatures of 9°C (48°F), average highs of 34°C (93°F), and an overall average of 18°C (65°F). Rainfall is slightly higher in July, with a total of 66 mm (2.6 in) over 11 days, compared to September's 58 mm (2.3 in) over 10 days. Additionally, September tends to be more humid at 84%, while July maintains a relatively lower humidity level of 79%. For more details about July weather, visit Newmarket weather in July.

In comparing the weather between August and September, September tends to be cooler, with a minimum temperature of 3°C (38°F) compared to August's low of 8°C (47°F). The average temperatures also reflect this transition, dropping from 18°C (64°F) in August to 15°C (59°F) in September. Furthermore, while August experiences warmer maximums reaching up to 33°C (91°F), September peaks at a more moderate 28°C (82°F). Precipitation is also notable, with September accumulating 58 mm (2.3 in) over 10 days, slightly less than August's 79 mm (3.1 in) over 12 days. Humidity remains high in both months, but it’s slightly elevated in September at 84%, compared to August's 78%. For more details on the weather for that period, check Newmarket weather in August.

September typically offers a warmer climate with average temperatures ranging from a minimum of 3°C (38°F) to a maximum of 28°C (82°F), while October sees a notable drop in warmth, with temperatures averaging between 0°C (33°F) and 24°C (75°F). In terms of precipitation, October is slightly wetter than September, receiving 83 mm (3.3 in) over 13 days compared to September's 58 mm (2.3 in) over 10 days. Additionally, October's humidity is a touch higher at 88%, compared to September's 84%. For those interested in a more detailed look at the weather, check out Newmarket weather in October.

The weather in September is noticeably warmer than in November, with average temperatures ranging from a minimum of 3°C (38°F) to a maximum of 28°C (82°F), while November sees a cooler range from -2°C (29°F) to 17°C (63°F) with an average of 8°C (46°F). September also experiences higher humidity at 84%, compared to November's 89%. Precipitation is fairly consistent, with September receiving 58 mm over approximately 10 days, while November has slightly less at 47 mm over 9 days. For more detailed insights, you can refer to Newmarket weather in November.

September weather is generally mild, with temperatures ranging from a cool 3°C (38°F) at night to a warm 28°C (82°F) during the day, and an average of 15°C (59°F). The month sees a moderate amount of precipitation at 58 mm (2.3 in) over about 10 days, accompanied by relatively high humidity at 84%. In contrast, December brings significantly colder temperatures, with lows dropping to -2°C (28°F) and an average of just 6°C (43°F). The month is wetter, with precipitation reaching 85 mm (3.3 in) across 15 days, and humidity rising slightly to 88%. For more detailed information, check out Newmarket weather in December.

Compare Newmarket's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Newmarket

As September unfolds in Newmarket, the weather begins to transition from the warmth of summer to the cool embrace of autumn. With an encouraging maximum temperature reaching 28°C (82°F), the days still offer pleasant warmth, but the average temperature drops notably, hovering around 15°C (59°F). This month is characterized by increased precipitation, with about 58 mm (2.3 in) falling over 10 days, resulting in a noticeable rise in humidity levels, which settle at approximately 84%. This blend of warmth and moisture sets September apart from the drier, sunnier months of summer, creating a unique atmosphere perfect for enjoying the changing beauty of the season. For more detailed insights, visit Newmarket Climate.