Cornwall weather live forecast

Today's maximum temperature in Cornwall is expected to be 18°C. Select a day from the live weather forecast for Cornwall (Newquay), UK for more weather parameters.

Sunday
30th Aug
18

15

4

4
Monday
31st Aug
17

15

4

4
Tuesday
1st Sep
20

14

6

4
Wednesday
2nd Sep
19

15

0

4
Thursday
3rd Sep
21

17

2

4

5-day weather forecast updated at 04:01 on Sunday 30th August 2026 GMT

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Destination

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 Sunday 30th August 2026

Expect isolated thunderstorms in Cornwall with a maximum temperature of 18°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 96% chance of some rain and a fresh breeze of 33 kph from the south-west.

18
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
4
UV index (Moderate)
96
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
33
kph wind from SW

Cornwall weather for Monday 31st August 2026

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 0-2 mm of rainfall expected with 18% chance of some rain and a fresh breeze of 31 kph from the north-west.

17
°C maximum temperature
15
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
4
UV index (Moderate)
18
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
31
kph wind from NW

Cornwall weather for Tuesday 1st September 2026

Expect broken clouds in Cornwall with a maximum temperature of 20°C, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the south-west.

20
°C maximum temperature
14
°C minimum temperature
broken clouds
6
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
20
°C wind chill
21
kph wind from SW

Cornwall weather for Wednesday 2nd September 2026

Expect mostly cloudy with light rain in Cornwall with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 56% chance of some rain and a fresh breeze of 30 kph from the south-west.

19
°C maximum temperature
15
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
4
UV index (Moderate)
56
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
30
kph wind from SW

Cornwall weather for Thursday 3rd September 2026

Expect mostly cloudy with light rain in Cornwall with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 42% chance of some rain and a moderate breeze of 27 kph from the west.