Cornwall Weather Forecast
Cornwall weather: 53°F, mainly clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
14-day forecast for Cornwall
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Sun, Aug 23 | ☁️ Overcast | 70° / 51° | 0% | 10 mph | 5 |
| Mon, Aug 24 | 🌦️ Light drizzle | 69° / 58° | 27% · 0,1 in | 19 mph | 4 |
| Tue, Aug 25 | 🌧️ Rain | 72° / 61° | 60% · 0,0 in | 15 mph | 6 |
| Wed, Aug 26 | 🌦️ Light rain | 71° / 58° | 82% · 0,5 in | 17 mph | 5 |
| Thu, Aug 27 | 🌦️ Light drizzle | 69° / 56° | 94% · 0,1 in | 12 mph | 5 |
| Fri, Aug 28 | 🌦️ Light drizzle | 70° / 53° | 87% · 0,0 in | 16 mph | 5 |
| Sat, Aug 29 | 🌦️ Drizzle | 67° / 61° | 70% · 0,2 in | 23 mph | 5 |
| Sun, Aug 30 | 🌦️ Light drizzle | 67° / 59° | 78% · 0,0 in | 14 mph | 4 |
| Mon, Aug 31 | 🌦️ Drizzle | 65° / 53° | 71% · 0,1 in | 10 mph | 3 |
| Tue, Sep 1 | 🌦️ Drizzle | 65° / 59° | 57% · 0,2 in | 10 mph | 5 |
| Wed, Sep 2 | ☁️ Overcast | 65° / 56° | 45% | 10 mph | 5 |
| Thu, Sep 3 | ☁️ Overcast | 65° / 54° | 50% | 11 mph | 4 |
| Fri, Sep 4 | 🌦️ Light drizzle | 65° / 60° | 48% · 0,2 in | 17 mph | 3 |
| Sat, Sep 5 | 🌦️ Light drizzle | 65° / 57° | 50% · 0,2 in | 7 mph | 5 |
The two-week trend
Cooling. The second half of the window averages 36°F cooler than the days immediately ahead.
The window averages 67°F against a August normal of 67°F - right on average.
Rainfall over the next 7 days is close to normal for August (0,9 in against a typical 0,6 in).
What this means for Cornwall
Today is slightly warmer than average for August. The forecast high of 70°F is 3.1°F above the 67°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 52°F.
What to pack, what to skip
- A packable rain shell - 5 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
See the Cornwall forecast by time range
Cornwall weather - more answers
Explore Cornwall
Every topic we hold for this place, and the same topic for the places around it.
Weather 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 Europe.
What is the weather like in Cornwall right now?
It is currently 53°F (12°C) with mainly clear. Humidity is 88% and wind is 3 mph.
When is the best time to visit Cornwall?
May, June, July and August offer the most comfortable conditions in Cornwall, which has a temperate climate. January, February 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 4:55 PM.
How many people live in Cornwall?
Cornwall has a population of approximately 570.000.
What is the nearest airport to Cornwall?
The closest airports are London Heathrow Airport (LHR), 217 mi away, London Gatwick Airport (LGW), 222 mi away and Dublin Airport (DUB), 224 mi away.
What are the top things to do in Cornwall?
Popular options include Stonehenge, Stonehenge, Avebury and Associated Sites, Snowdonia National Park, Mont-Saint-Michel and its Bay, Mont-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. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate 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 August 23, 2026 at 4:55 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
