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Photo by Dietmar Rabich, CC BY-SA 4.0, via Wikimedia Commons.
Cornwall in September
sweet spot · one of the best months to go
The year in Cornwall
Tap a month for its page
- JanJCornwall in January: avoid
- FebFCornwall in February: avoid
- MarMCornwall in March: ok
- AprACornwall in April: sweet spot
- MayMCornwall in May: sweet spot
- JunJCornwall in June: sweet spot, busy
- JulJCornwall in July: sweet spot, busy
- AugACornwall in August: sweet spot, busy
- SepSCornwall in September: sweet spot
- OctOCornwall in October: ok
- NovNCornwall in November: avoid
- DecDCornwall in December: avoid
- Sweet spot
- Good
- OK
- Avoid
- Busy
Plan this trip
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Flights
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Where to stay
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Luxury
Things to do
Car hire
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Travel insurance
Check whether your bank card or home insurance already covers this trip.
If the trip needs a visa, the travel agent or visa centre usually sells the cover it asks for.
Mobile data (eSIM)
Your own plan's EU roaming may already cover this.
Renting a pocket Wi-Fi is the other common way to stay connected.
These are sites people in book with. Each opens in a new tab, on the site's own pages.
The numbers
| Daily high | 17°C |
|---|---|
| Nightly low | 14°C |
| Feels like, afternoon | 16°C |
| Rainy days, 1 mm or more | 12 · 102 mm |
| Humidity | 83% |
| Sunshine | 8.6 h/day |
| Daylight | 12.6 h/day |
| Crowds | 85 / 100, higher is quieter |
Ten-year averages for this calendar month. A rainy day is one with at least 1 mm of rain, as a weather station counts it. The model these figures come from drizzles more than a rain gauge, the more so the warmer the month, so its days count from 2 mm, rising to 5 mm in the hottest.
Weather read at St Ives, 43 km from the airport (NQY): ten years of ERA5 and ERA5-Land reanalysis, through Open-Meteo's open data.
How busy it gets
Cornwall in pictures
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ArildV, CC BY-SA 4.0, via Wikimedia Commons
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ArildV, CC BY-SA 4.0, via Wikimedia Commons
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Herbythyme, CC BY-SA 4.0, via Wikimedia Commons
What to pack
- A packable rain jacket for the 12 or so rainy days.
- Sun protection: about 9 hours of sunshine a day.
- Humidity averages 83%; breathable fabrics dry faster.
Each line is a threshold over the ten-year figures above, not advice from anywhere else.
Before you go
Type G plugs at 230 V. Drives on the left. The currency is the Pound sterling. Everything for United Kingdom: cost of living, languages, emergency numbers and health.
On arrival in Cornwall: the apps, paying, getting around, tipping and the emergency numbers.
September elsewhere
- Everywhere in September
- Beaches in September
- Heritage in September
- Europe in September
- United Kingdom in September
In September from
The other months at Cornwall
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