Cornwall weather live forecast

Today's maximum temperature in Cornwall is expected to be 17°C. Select a day from the live weather forecast for Cornwall (Newquay), UK for more weather parameters.

Monday
1st Sep
17

13

4

4
Tuesday
2nd Sep
19

13

2

4
Wednesday
3rd Sep
19

14

3

4
Thursday
4th Sep
16

14

4

4
Friday
5th Sep
18

14

2

5

5-day weather forecast updated at 04:01 on Sunday 31st August 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 Monday 1st September 2025

Expect mostly cloudy with light rain in Cornwall with a maximum temperature of 17°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 83% chance of some rain and a fresh breeze of 30 kph from the west.

17
°C maximum temperature
13
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
4
UV index (Moderate)
83
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
30
kph wind from W

Cornwall weather for Tuesday 2nd September 2025

Expect mostly cloudy with light rain in Cornwall with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 53% chance of some rain and a moderate breeze of 24 kph from the west.

19
°C maximum temperature
13
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
4
UV index (Moderate)
53
% chance of some rain
<2
mm of rainfall expected
19
°C wind chill
24
kph wind from W

Cornwall weather for Wednesday 3rd September 2025

Expect isolated thunderstorms in Cornwall with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 20-30 mm of rainfall expected with 77% chance of some rain and a fresh breeze of 29 kph from the south-west.

19
°C maximum temperature
14
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
4
UV index (Moderate)
77
% chance of some rain
<30
mm of rainfall expected
19
°C wind chill
29
kph wind from SW

Cornwall weather for Thursday 4th September 2025

Expect mostly cloudy with rain in Cornwall with a maximum temperature of 16°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 68% chance of some rain and a fresh breeze of 30 kph from the west.

16
°C maximum temperature
14
°C minimum temperature
mostly cloudy with rain
4
hours of sunshine
4
UV index (Moderate)
68
% chance of some rain
<10
mm of rainfall expected
16
°C wind chill
30
kph wind from W

Cornwall weather for Friday 5th September 2025

Expect mostly cloudy with light rain in Cornwall with a maximum temperature of 18°C, maximum UV of 5 (Moderate) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 45% chance of some rain and a moderate breeze of 25 kph from the south-west.