As the UK waves goodbye to the height of summer, Cornwall transitions into a season that holds its own unique charm.
September in Cornwall is a fascinating blend of mild weather, lingering sunshine, and the onset of autumn hues. This article explores what to expect from Cornwall’s weather in September, discusses the benefits and drawbacks of visiting during this time, and offers practical packing tips for travellers.
If you’re planning a trip and wondering whether September is the right time to discover Cornwall’s idyllic landscapes, picturesque beaches, and iconic attractions, this comprehensive guide has got you covered.
What to Expect from Cornwall’s Weather in September
September in Cornwall offers a milder climate than the peak summer months, yet it still retains a considerable amount of warmth and sunlight.
The average daytime temperature tends to hover around 16-18°C, which is quite comfortable for outdoor activities. Evening temperatures can dip to approximately 12-14°C, lending a pleasant chill in the air after sundown.
Additionally, September brings less of the extreme heat and crowds that characterise the summer months, providing an ideal balance for holiday-goers who want to experience a bit of everything.
Is September sunny in Cornwall?
Contrary to the perception that the UK is often gloomy and rain-soaked, Cornwall in September has its share of sunshine.
On average, the county enjoys approximately 5-6 hours of sunshine per day in September. While this is less than the peak summer months, it is still ample to enjoy the beautiful outdoor settings of Cornwall.
However, as with any location in the UK, the weather can be unpredictable. Thus, it is advisable to keep an eye on the weather forecasts during your stay. Yet, the sunny spells, coupled with the milder temperatures of September, often make it a delightful month to visit Cornwall.
How much rain does Cornwall get in September?
Despite the lingering warmth and sunshine, September marks the beginning of the rainy season in Cornwall. The average rainfall in September is about 60-80mm, spread over approximately 15 days of the month.
While this might sound substantial, remember that these are showers scattered throughout the month and typically do not disrupt activities for extended periods.
Plus, the rain adds a certain charm to the lush landscapes of Cornwall, transforming them into an even more picturesque sight.
Is September a good time to go to Cornwall?
September can be an excellent time to visit Cornwall, depending on your preferences. The weather is relatively mild, less crowded than the peak summer months, and the countryside is ripe with autumn colours starting to show.
Nature lovers will particularly enjoy September as it is the perfect time to explore the region’s famous gardens, with flowers still in bloom, and the trees starting to don their autumn hues.
Moreover, surfers find September a good month for surfing due to the warm sea temperatures.
Pros and Cons of Visiting Cornwall in September
Like any travel decision, visiting Cornwall in September has its pros and cons.
On the plus side, you’ll experience milder temperatures, fewer crowds, and potentially lower accommodation prices than in the peak summer months. It’s also an excellent time for nature walks and surfing.
On the downside, the weather can be unpredictable, with a mix of sunny spells and rain showers. Days are also shorter compared to the summer, which means less daylight for sightseeing and outdoor activities.
Packing Tips for Cornwall in September
When packing for Cornwall in September, layering is the key. As the days can be warm and the evenings cooler, bring a mix of short-sleeved and long-sleeved tops. A lightweight, waterproof jacket is essential to fend off the occasional showers.
Don’t forget to pack sturdy shoes for those scenic Cornish walks. If you’re planning on visiting the beach, the sea temperature is still warm enough for swimming, so pack your swimwear.
A hat and sunscreen are also recommended, considering the decent amount of sunshine in September. Lastly, remember a warm scarf or wrap for the cooler evenings, ensuring your trip to Cornwall in September is comfortable and enjoyable.
In Conclusion: Cornwall Weather in September
As we have explored, Cornwall’s weather in September offers a milder yet delightful alternative to the busy summer months.
With a pleasant balance of warmth and rainfall, it creates a unique backdrop for visitors to explore the region’s natural beauty and cultural heritage.
Despite the chances of rain, the considerable hours of sunshine coupled with the spectacular transformation of landscapes into autumn colours make September an attractive time to visit.
Remember to pack wisely to accommodate the changing weather. Whether you’re a nature enthusiast, a surfer, or someone who just wishes to relish in the tranquillity of Cornwall without the summer crowds, September could be the perfect month for your unforgettable Cornish adventure.



