Cornwall Väder Prognos
Cornwall weather: 14°C, mulet. Varje timme forecast, 14-day outlook, UV, air quality and the best time och visit.
Cornwall weather in september
A good month och visit Cornwall.
september runs 3°C warmer than the annual average in Cornwall.
Väder map for Cornwall
Animated model layers. Pick a layer och load it.
Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.
Klimat in Cornwall month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Månad | Avg high | Avg low | Regnfall | Rating |
|---|---|---|---|---|
| januari | 9° | 4° | 166 mm | ★★☆☆☆ |
| februari | 10° | 6° | 168 mm | ★★☆☆☆ |
| mars | 11° | 6° | 107 mm | ★★★☆☆ |
| april | 13° | 7° | 105 mm | ★★★☆☆ |
| maj | 16° | 10° | 74 mm | ★★★★☆ |
| juni | 18° | 13° | 75 mm | ★★★★☆ |
| juli | 20° | 14° | 60 mm | ★★★★☆ |
| augusti | 20° | 14° | 73 mm | ★★★★☆ |
| september | 17° | 12° | 89 mm | ★★★★☆ |
| oktober | 15° | 11° | 116 mm | ★★★☆☆ |
| november | 12° | 8° | 152 mm | ★★★☆☆ |
| december | 10° | 7° | 145 mm | ★★☆☆☆ |
Klimat type: Temperate. Källa: Open-Meteo archive (ERA5).
Bästa tiden att besöka Cornwall
Go in maj, juni, juli and augusti. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: januari, februari and december - expect the least comfortable mix of heat, cold or rain.
What och pack, what och skip
- A packable rain shell - 4 of the next 7 days carry a real chance of rain
- Avoid exposed ridgelines, small boats and rooftop viewpoints while gusts stay above 62 km/h.
- If your dates are flexible, avoid januari, februari and december - historically the least comfortable months here.
How Cornwall compares med nearby places
Annual averages, and the difference against Cornwall.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Devon | 119 km | 12°C | about the same | 1080 mm |
| Somerset | 176 km | 12°C | about the same | 911 mm |
| South Wales | 189 km | 12°C | about the same | 1376 mm |
| Cardiff | 189 km | 12°C | about the same | 1376 mm |
| Dorset | 199 km | 12°C | about the same | 1195 mm |
Se prognosen för Cornwall per tidsintervall
Cornwall weather - more answers
Explore Cornwall
Every topic we hold for this place, and the same topic for the places around it.
Väder for related places
Frequently asked questions
Where is Cornwall?
Cornwall is a county in England. Its coordinates are 50.266, -5.0527. It lies in Europa.
What is the weather like in Cornwall just nu?
It is currently 14°C (58°F) med mulet. Luftfuktighet is 75% and wind is 12 km/h.
When is the best time och visit Cornwall?
maj, juni, juli and augusti offer the most comfortable conditions in Cornwall, which has a temperate climate. januari, februari and december are usually the hardest months for outdoor plans.
What time zone is Cornwall in?
Cornwall observes Europe/London (UTC+01:00). The local time is 2:32 AM.
How many people live in Cornwall?
Cornwall has a population of approximately 570.000.
What is the nearest airport och Cornwall?
The closest airports are London Heathrow Airport (LHR), 349 km away, London Gatwick Airport (LGW), 357 km away and Dublin Airport (DUB), 361 km away.
What are the top things och do in Cornwall?
Popular options include Stonehenge, Stonehenge, Avebury and Associated Sites, Snödonia National Park, månt-Saint-Michel and its Bay, månt-Saint-Michel and Big Ben and the Houses of Parliament.
What places are in Cornwall?
Cornwall covers 1 places in this atlas, including St Ives.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (uk-regions) - coordinates, hierarchy and facts. |
|---|---|
| Prognos and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klimat averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated oktober 1, 2026 at 2:32 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
