September Weather in Perranporth, United Kingdom

Last updated: March 17, 2025

September in Perranporth, United Kingdom, offers a delightful blend of mild temperatures and refreshing coastal breezes. With maximum highs reaching 26°C (79°F) and an average of 15°C (60°F), this month is ideal for outdoor activities. However, visitors should be prepared for the occasional drizzle, as 67 mm (2.6 in) of rain typically graces the area over 12 days. The relative humidity hovers around a comfortable 85%, creating a pleasant atmosphere for enjoying the stunning beaches and scenic landscapes.

September Temperature in Perranporth

As September rolls in, Perranporth, United Kingdom experiences a delightful transition in temperatures, welcoming the early signs of autumn. With minimums around 8°C (47°F) and average highs peaking at a comfortable 26°C (79°F), this month strikes a perfect balance between the lingering warmth of summer and the coolness of fall. It's a time when locals and visitors alike can enjoy mild days, with the average hovering at 15°C (60°F), making it ideal for outdoor activities along the stunning coastline. As the month progresses, the days start to shorten, hinting at the cooler climate ahead, but the vibrant beauty of the surroundings during this time is sure to captivate anyone lucky enough to be here.

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

The chart illustrates September temperature patterns in Perranporth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec464747505459636260555049
Data source: Temperature data for Perranporth 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 Perranporth

In September, Perranporth experiences a moderate rainfall of 67 mm (2.6 in), spread over approximately 12 days. This level of precipitation aligns closely with the drier summer months like August, which saw only slightly less rain at 62 mm. As the year transitions towards autumn, September marks a noticeable shift as precipitation begins to rise, foreshadowing the wetter months ahead. For comparison, October and November significantly ramp up, showcasing the region’s characteristic transition into a rainier season. This consistent pattern illustrates how Perranporth's climate evolves, balancing sunshine with the anticipation of heavier autumn rains.

September Precipitation Trends in Perranporth

The chart displays monthly precipitation patterns in Perranporth, 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.
JanFebMarAprMayJunJulAugSepOctNovDec708584506582676267118100123
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Perranporth

September in Perranporth, United Kingdom, sees a slight decrease in humidity, settling at 85%. This marks a subtle decline from the peak humidity of 87% observed in July and the 86% of August, signaling a gentle transition into the drier autumn months. Throughout the year, humidity levels tend to hover in the 80% to 87% range, with late summer and early fall presenting the most moisture. As the seasons change, the consistent humidity reflects Perranporth's coastal environment, ensuring that the air remains rich and somewhat refreshing even as temperatures begin to cool.

September Average Humidity in Perranporth

This chart illustrates the average monthly humidity levels in Perranporth, 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.
JanFebMarAprMayJunJulAugSepOctNovDec81%84%83%84%85%86%87%86%85%85%82%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Perranporth

In September, Perranporth experiences a notable decrease in the UV Index compared to the peak summer months, registering at a 6, which falls into the high exposure category. This means that sunny days can still lead to sunburn in about 25 minutes of unprotected skin exposure. As the summer fades, it’s a perfect reminder to enjoy the lingering warmth while still taking precautions against UV rays. The transition from the intense summer sun reflects a gradual reduction in UV intensity, moving towards a more moderate October. For a detailed insight into UV levels throughout the year, explore Perranporth UV Index.

Maximum UV Index Levels in Perranporth for September

The chart shows the monthly maximum UV Index (UVI) for Perranporth 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.
JanFebMarAprMayJunJulAugSepOctNovDec224679876421
Data source: Perranporth 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 Perranporth

As summer gracefully shifts into autumn, September in Perranporth still enjoys a generous embrace of sunshine, showcasing 329 hours of glorious daylight. This marks a significant decline from the sun-drenched highs of July, which boasts 427 hours, yet it remains a vibrant time with more sunshine than October's 261 hours. Travelers revel in the lingering warmth as the beach remains a perfect getaway, making it an ideal month for beach walks and outdoor activities. Interestingly, September's total, while lower than those peak summer months, reflects a remarkable consistency in sunlight that characterizes the transition to fall, solidifying its place as a delightful time to experience this scenic coastal town.

Monthly Sunshine Duration in Perranporth: September Highlighted

The September sunshine duration represents the total number of hours Perranporth 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.
JanFebMarAprMayJunJulAugSepOctNovDec96h159h238h355h410h409h427h391h329h261h154h119h
Data source: Perranporth September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Perranporth During September

In September, Perranporth, United Kingdom, enjoys a 31% chance of sunny weather, which reflects a slight uptick from the summer months. Following the peak sunshine of April at 50%, the likelihood begins to wane, with August and July presenting 30% and 38% respectively. This trend suggests that while the summer warmth begins to fade, September still offers decent opportunities for sun-soaked days, making it an inviting time for beachgoers and outdoor enthusiasts. As autumn begins to settle in, the chance of sunshine starts to decrease again, with October dipping to 28%, hinting that September may provide one of the last chances for enjoying a sunny escape before the chill of winter sets in.

Percentage of Sunny Days in September in Perranporth

The chart illustrates the percentage of sunny days in Perranporth 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 Perranporth experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec25%24%33%50%37%28%38%30%31%28%22%19%
Data source: Perranporth September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Perranporth in September

As summer gives way to autumn, September in Perranporth, United Kingdom, reflects a gentle transition in daylight duration, offering about 12 hours of daylight. After basking in the longest days of the year during June, with a generous 16 hours of sunlight, the days gradually shorten. While September still retains traces of summer's brightness, it marks a noticeable decline as the daylight durations dip to 12 hours, hinting at the impending arrival of winter. This pattern sets a rhythm, with daylight gradually decreasing from the lush 15 hours in May and the 14 hours of August, before settling into the 10 hours expected in October. The softening light of September serves as a reminder of nature's cycles, blending the warmth of summer with the crispness of fall.

Average Daylight Hours in Perranporth for September

The chart illustrates the variation in daylight duration in Perranporth throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 34m10h 4m11h 55m13h 49m15h 27m16h 18m15h 51m14h 23m12h 33m10h 40m8h 59m8h 6m
Data source: Perranporth daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Perranporth

September in Perranporth, United Kingdom, ushers in a gentle breeze with an average wind speed of 4.4 m/s (10 mph), reflecting a notable dip from the lively gusts of the earlier summer months. As the season transitions from the warmth of August, which recorded an average of 4.8 m/s (11 mph), September’s winds start to soften, hinting at autumn’s approach. This trend of decreasing wind speeds is noticeable as the year progresses, peaking in the winter months, notably December, which spikes to 7.3 m/s (16 mph). Thus, September becomes a serene backdrop for beachgoers and surfers alike, as the winds whisper of change while still holding on to the remnants of summer's vitality.

Average September Wind Speed in Perranporth

The chart displays monthly wind speed patterns in Perranporth, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.17.36.04.86.14.24.54.84.4 m/s5.95.27.3
Data source: Perranporth September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Perranporth Compares to Other Months

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

In September, temperatures in Perranporth range from a minimum of 8°C (47°F) to a pleasant average of 15°C (60°F), peaking at 26°C (79°F). The month experiences around 67 mm (2.6 in) of precipitation over 12 days, with humidity levels at a relatively high 85%. In contrast, January offers a chillier climate, with temperatures dropping to a minimum of 0°C (32°F) and an average of only 8°C (46°F), warming to a maximum of 14°C (58°F). Precipitation slightly increases to 70 mm (2.8 in) over the same number of days, while humidity remains comparable at 81%. For more insights into January weather specifics, you can check Perranporth weather in January.

In comparing the weather of September and February, we observe notable differences in temperature and precipitation patterns. September boasts a mild climate, with average temperatures ranging from 8°C (47°F) to a maximum of 26°C (79°F), while February's temperatures drop significantly, averaging between -2°C (28°F) and 14°C (58°F). Additionally, September receives around 67 mm (2.6 in) of precipitation over 12 days, whereas February experiences higher precipitation, totaling 85 mm (3.4 in) over 16 days. Humidity levels remain relatively similar, with September at 85% and February slightly lower at 84%. For those interested in a more detailed look at February weather, you can visit Perranporth weather in February.

In comparing the weather of September and March, notable differences can be observed. September boasts a milder average temperature of 15°C (60°F), with maximums reaching 26°C (79°F) and minimums no lower than 8°C (47°F). Conversely, March is typically cooler, with an average temperature of 9°C (48°F); it can even dip as low as -4°C (26°F) at night. Additionally, March experiences more frequent precipitation, with rain on 17 days and a total of 84 mm (3.3 in) compared to September's 12 rainy days and 67 mm (2.6 in). Both months have high humidity levels, but September's 85% slightly edges out March's 83%. For more specific details about conditions in March, check Perranporth weather in March.

When comparing the weather in September and April, there are notable differences in temperature and precipitation levels. September enjoys a more temperate climate with average temperatures ranging from 8°C (47°F) to a maximum of 26°C (79°F), making it significantly warmer than April, which sees an average of 2°C (35°F) to 20°C (68°F). While both months have high humidity levels, September's average humidity is slightly higher at 85%, compared to April's 84%. In terms of rainfall, September receives a bit more precipitation, with 67 mm (2.6 in) over approximately 12 days, whereas April has 50 mm (2.0 in) spread over 9 days. For a more detailed look at the specific climate conditions, visit Perranporth weather in April.

September and May showcase distinct weather characteristics, despite having similar humidity levels of 85% and roughly equivalent precipitation amounts. September generally offers warmer temperatures, with averages reaching 15°C (60°F) and highs of 26°C (79°F), while May's averages are cooler at 12°C (54°F) with maximums of 22°C (72°F). Additionally, September tends to feel more summery, promoting outdoor activities, whereas May often has a more spring-like chill in the air. For a closer look at the weather during this time, you can refer to Perranporth weather in May.

In comparing the weather in September and June, both months share similar average temperatures, with a min of 8°C (47°F), an average of 15°C (60°F), and a max of 26°C (79°F) in September and 26°C (80°F) in June. However, June experiences slightly more precipitation at 82 mm (3.2 inches) across 13 days, compared to September's 67 mm (2.6 inches) over 12 days. Humidity levels are also comparable, with September at 85% and June slightly higher at 86%. For a closer look at what to expect, you can check Perranporth weather in June.

In comparing the weather of September and July, we find some notable similarities and differences. Both months experience a maximum temperature of around 26°C (79°F), making them quite warm, but September offers a slightly cooler average temperature of 15°C (60°F) compared to July's 17°C (63°F). On the other hand, while July has a minimum temperature of 11°C (52°F), September drops to a cooler 8°C (47°F) at night. Precipitation levels are similar, with September recording 67 mm (2.6 in) over 12 days and July having the same rainfall amount spread over just 11 days. Humidity remains high in both months, with September at 85% and July slightly higher at 87%. For a detailed look at the weather patterns, you can also check Perranporth weather in July.

In comparing the weather of September and August, September experiences cooler temperatures overall, with minimums around 8°C (47°F) compared to August's 11°C (53°F). The average temperatures also drop from 17°C (62°F) in August to 15°C (60°F) in September, although September sees a maximum of 26°C (79°F), slightly higher than August's peak of 24°C (75°F). Precipitation is relatively similar between the two months, with September recording 67 mm (2.6 in) over approximately 12 days, while August has 62 mm (2.4 in) of rain over 13 days. Both months maintain high humidity levels, with September at 85% and August slightly higher at 86%. For more detailed information, check out Perranporth weather in August.

September typically brings warmer temperatures compared to October, with average highs around 26°C (79°F), while October sees max temperatures drop to 19°C (67°F). The minimum temperature also shifts, from 8°C (47°F) in September to a chilly 2°C (37°F) in October. Precipitation increases notably in October, with 118 mm (4.6 in) of rain over 15 days compared to 67 mm (2.6 in) over 12 days in September. Despite both months experiencing high humidity at 85%, the overall feel of October tends to be much cooler and wetter. For more specific details, you can check out Perranporth weather in October.

In September, the weather is generally warmer, with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 26°C (79°F). With 67 mm (2.6 in) of precipitation spread across 12 days, the month tends to be humid at 85%. In contrast, November experiences cooler temperatures, averaging between 2°C (37°F) and 16°C (61°F). The month is wetter, with 100 mm (3.9 in) of rainfall over 18 days, and slightly lower humidity at 82%. For more detailed insights into November's climate in the region, check out Perranporth weather in November.

September usually enjoys milder weather, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 26°C (79°F), and an average of 15°C (60°F). The month sees around 67 mm (2.6 in) of precipitation over approximately 12 days, and humidity levels are relatively high at 85%. In contrast, December brings cooler temperatures, with a minimum of 2°C (36°F) and a maximum of 14°C (58°F), averaging around 9°C (49°F). Precipitation significantly increases to 123 mm (4.8 in) across about 20 days, while humidity remains high at 80%. For more detailed information, you can check out Perranporth weather in December.

Compare Perranporth's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Perranporth

As September unfolds in Perranporth, the weather begins to transition, offering a unique blend of warmth and cooler days that set it apart from the summer months. With daytime temperatures hovering around a pleasant average of 15°C (60°F), this month presents a delightful escape from the peak summer heat, while still allowing for occasional highs reaching 26°C (79°F). However, the increased likelihood of rain, typically spread over 12 days with a total precipitation of 67 mm (2.6 in), signals the onset of autumn’s embrace. Coupled with a humidity level of 85%, the atmosphere is ripe for those picturesque coastal walks where the cool breeze meets the lingering warmth of the sun. For a deeper dive into the climate trends of this charming coastal town, explore Perranporth Climate.