Cornwall weather live forecast

Today's maximum temperature in Cornwall is expected to be 12°C. Select a day from the live weather forecast for Cornwall (Newquay), UK for more weather parameters.

Sunday
17th May
12

10

0

4
Monday
18th May
12

9

0

3
Tuesday
19th May
15

13

3

5
Wednesday
20th May
15

12

4

5
Thursday
21st May
18

12

5

5

5-day weather forecast updated at 04:00 on Sunday 17th May 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 17th May 2026

Expect mostly cloudy with light rain in Cornwall with a maximum temperature of 12°C, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 85% chance of some rain and a moderate breeze of 25 kph from the west.

12
°C maximum temperature
10
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
4
UV index (Moderate)
85
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
25
kph wind from W

Cornwall weather for Monday 18th May 2026

Expect cloudy with some rain in Cornwall with a maximum temperature of 12°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 91% chance of some rain and a fresh breeze of 32 kph from the south.

12
°C maximum temperature
9
°C minimum temperature
cloudy with some rain
0
hours of sunshine
3
UV index (Moderate)
91
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
32
kph wind from S

Cornwall weather for Tuesday 19th May 2026

Expect mostly cloudy with light rain in Cornwall with a maximum temperature of 15°C, maximum UV of 5 (Moderate) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 59% chance of some rain and a fresh breeze of 33 kph from the south-west.

15
°C maximum temperature
13
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
5
UV index (Moderate)
59
% chance of some rain
<5
mm of rainfall expected
15
°C wind chill
33
kph wind from SW

Cornwall weather for Wednesday 20th May 2026

Expect mostly cloudy with light rain in Cornwall with a maximum temperature of 15°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 29% chance of some rain and a fresh breeze of 31 kph from the south-west.

15
°C maximum temperature
12
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
5
UV index (Moderate)
29
% chance of some rain
<2
mm of rainfall expected
15
°C wind chill
31
kph wind from SW

Cornwall weather for Thursday 21st May 2026

Expect broken clouds in Cornwall with a maximum temperature of 18°C, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the south-west.