SeasonMapNewquay weather in September
United Kingdom
September in Newquay: nice, rainy, with clean air — a good time to visit.
#6 of 12 months in Newquay · #970 of 1383 destinations to visit in September · comfort 68/100 (tier C)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Newquay in September
Other months in Newquay
Newquay's forum is honest that August is a genuine gamble — regulars describe years that were dry, warm and sunny throughout, others that did nothing but rain, and plenty that landed somewhere in between. It's also the busiest month by far, so plan to set off early for the beach regardless of the forecast.
Add your own note from Newquay's card on the map.
Newquay climate normals — September
| Daytime high | 18°C / 64°F | 😎 nice |
|---|---|---|
| Nighttime low | 13°C / 55°F | |
| Feels like (high) | 16°C / 61°F | |
| Sea temperature | 17°C / 62°F | 🧊 bracing |
| Rainfall | 100 mm / 3.9 in | 🌧 rainy |
| Rainy days | 15 days | |
| Humidity | 82% | 💦 very humid |
| Dew point | 13°C / 55°F | |
| Sunshine | 8 h/day | |
| Daylight | 12.6 h | |
| Wind | 26 km/h / 16 mph | |
| Air quality (US AQI) | 44 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Newquay in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyEnglish school holidays, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Newquay's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherNewquay's weather peaks June–August.
Best weatherFair weatherToughest weather
What's on in Newquay in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Opening
Lifeguarded beach season
1 May – 30 Sep · usuallySummer season opensRiskThe main beaches are patrolled from about May to the end of September and unpatrolled either side, when the rips at Fistral and Crantock are the same but nobody is watching them. Source ↗
- Holiday
English school holidays
18 Jul – 1 SepCrowdedBook earlyThe A30 into Cornwall backs up on changeover Saturdays and the town runs at capacity for six weeks. Car parks above the beaches fill before ten. Source ↗
- Season
Sea at its warmest
1 Aug – 30 Sep · usuallySea warm enoughThe water lags the air by about two months, so late August into September is the best of it. Most people still put on a wetsuit, and the ones who do not do not stay in long.
- Season
Atlantic swell season
15 Sep – 15 Apr · usuallySurf seasonFistral works properly when the autumn and winter groundswells arrive; the summer that everyone visits for is the flattest, most crowded water of the year. Wetsuits all twelve months.
Nearby, and something's on
Within 300 km of Newquay — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Newquay?
Newquay in September — FAQ
- Is September a good time to visit Newquay?
- September in Newquay: nice, rainy, with clean air — a good time to visit. It ranks #6 of 12 months for Newquay on SeasonMap's comfort score (68/100).
- What is the weather like in Newquay in September?
- In September, Newquay averages a daily high of 18°C and a low of 12.7°C, with about 99.5 mm of rain over roughly 14.5 rainy days.
- What is the air quality in Newquay in September?
- Newquay has a mean US Air Quality Index of about 44 in September.
Other months in Newquay
Compare Newquay in September
Warmer or cooler than Newquay in September
Similar destinations in Northern Europe — September
Within 300 km: St Ives' St Ives September Festival on 12–26 Sep, and Bath's Jane Austen Festival on 11–20 Sep.