Cornwall weather live forecast

Today's maximum temperature in Cornwall is expected to be 19°C. Select a day from the live weather forecast for Cornwall (Newquay), UK for more weather parameters.

Thursday
18th Sep
19

16

3

2
Friday
19th Sep
19

15

5

3
Saturday
20th Sep
17

13

1

3
Sunday
21st Sep
14

10

4

2
Monday
22nd Sep
14

9

9

3

5-day weather forecast updated at 04:01 on Thursday 18th September 2025 GMT

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The 5-day weather forecast for Cornwall (Newquay) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Top Cornwall destinations

Below are temperatures expected today at popular countries, regions and places in Cornwall. Select a destination to see the detailed weather forecast for today, tomorrow and the outlook for the next five days.

Cornwall weather forecast by day

Below are the detailed weather forecasts for Cornwall for the next 5 days. The forecasts shown are for Newquay and may not represent the whole of Cornwall. Browse more destinations in Cornwall to view more weather forecasts.

Cornwall weather for Thursday 18th September 2025

Expect broken clouds in Cornwall with a maximum temperature of 19°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 28 kph from the south-west.

19
°C maximum temperature
16
°C minimum temperature
broken clouds
3
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
19
°C wind chill
28
kph wind from SW

Cornwall weather for Friday 19th September 2025

Expect sunshine and showers in Cornwall with a maximum temperature of 19°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 12% chance of some rain and a moderate breeze of 22 kph from the south.

19
°C maximum temperature
15
°C minimum temperature
sunshine and showers
5
hours of sunshine
3
UV index (Moderate)
12
% chance of some rain
<2
mm of rainfall expected
19
°C wind chill
22
kph wind from S

Cornwall weather for Saturday 20th September 2025

Expect mostly cloudy with light rain in Cornwall with a maximum temperature of 17°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 66% chance of some rain and a fresh breeze of 30 kph from the south-west.

17
°C maximum temperature
13
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
3
UV index (Moderate)
66
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
30
kph wind from SW

Cornwall weather for Sunday 21st September 2025

Expect mostly cloudy with rain in Cornwall with a maximum temperature of 14°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 71% chance of some rain and a fresh breeze of 30 kph from the west.

14
°C maximum temperature
10
°C minimum temperature
mostly cloudy with rain
4
hours of sunshine
2
UV index (Low)
71
% chance of some rain
<10
mm of rainfall expected
14
°C wind chill
30
kph wind from W

Cornwall weather for Monday 22nd September 2025

Expect sunshine and showers in Cornwall with a maximum temperature of 14°C, maximum UV of 3 (Moderate) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 47% chance of some rain and a moderate breeze of 28 kph from the north-east.