Cornwall weather by month

Check out Cornwall weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum daytime temperature °C
9°C maximum daytime temperature in January in Newquay9
8°C maximum daytime temperature in February in Newquay8
10°C maximum daytime temperature in March in Newquay10
12°C maximum daytime temperature in April in Newquay12
14°C maximum daytime temperature in May in Newquay14
17°C maximum daytime temperature in June in Newquay17
19°C maximum daytime temperature in July in Newquay19
19°C maximum daytime temperature in August in Newquay19
17°C maximum daytime temperature in September in Newquay17
15°C maximum daytime temperature in October in Newquay15
11°C maximum daytime temperature in November in Newquay11
10°C maximum daytime temperature in December in Newquay10
Hours of sunshine (daily)
Days with some rainfall
21 days with some rainfall in January in Newquay21
16 days with some rainfall in February in Newquay16
18 days with some rainfall in March in Newquay18
14 days with some rainfall in April in Newquay14
15 days with some rainfall in May in Newquay15
13 days with some rainfall in June in Newquay13
13 days with some rainfall in July in Newquay13
15 days with some rainfall in August in Newquay15
15 days with some rainfall in September in Newquay15
18 days with some rainfall in October in Newquay18
20 days with some rainfall in November in Newquay20
21 days with some rainfall in December in Newquay21
Sea temperature °C
10°C sea temperature in January in Newquay10
9°C sea temperature in February in Newquay9
9°C sea temperature in March in Newquay9
10°C sea temperature in April in Newquay10
12°C sea temperature in May in Newquay12
14°C sea temperature in June in Newquay14
16°C sea temperature in July in Newquay16
16°C sea temperature in August in Newquay16
16°C sea temperature in September in Newquay16
14°C sea temperature in October in Newquay14
13°C sea temperature in November in Newquay13
11°C sea temperature in December in Newquay11

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Cornwall by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Cornwall (Newquay) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top Cornwall destinations

Below are average maximum temperatures at popular countries, regions and places in Cornwall for next month - February. Select a destination to see the climate guide for all months of the year.

Metric (°C / mm)  |  Imperial (°F / inches)

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Cornwall weather averages

Temperature in Cornwall (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
9°C maximum daytime temperature in January in Cornwall (Newquay)9
8°C maximum daytime temperature in February in Cornwall (Newquay)8
10°C maximum daytime temperature in March in Cornwall (Newquay)10
12°C maximum daytime temperature in April in Cornwall (Newquay)12
14°C maximum daytime temperature in May in Cornwall (Newquay)14
17°C maximum daytime temperature in June in Cornwall (Newquay)17
19°C maximum daytime temperature in July in Cornwall (Newquay)19
19°C maximum daytime temperature in August in Cornwall (Newquay)19
17°C maximum daytime temperature in September in Cornwall (Newquay)17
15°C maximum daytime temperature in October in Cornwall (Newquay)15
11°C maximum daytime temperature in November in Cornwall (Newquay)11
10°C maximum daytime temperature in December in Cornwall (Newquay)10
Min temperature (night-time)
4°C minimum night-time temperature in January in Cornwall (Newquay)4
4°C minimum night-time temperature in February in Cornwall (Newquay)4
4°C minimum night-time temperature in March in Cornwall (Newquay)4
6°C minimum night-time temperature in April in Cornwall (Newquay)6
8°C minimum night-time temperature in May in Cornwall (Newquay)8
11°C minimum night-time temperature in June in Cornwall (Newquay)11
13°C minimum night-time temperature in July in Cornwall (Newquay)13
13°C minimum night-time temperature in August in Cornwall (Newquay)13
11°C minimum night-time temperature in September in Cornwall (Newquay)11
10°C minimum night-time temperature in October in Cornwall (Newquay)10
6°C minimum night-time temperature in November in Cornwall (Newquay)6
5°C minimum night-time temperature in December in Cornwall (Newquay)5
Heat & Humidity
No heat & humidity in January in Cornwall (Newquay)0
No heat & humidity in February in Cornwall (Newquay)0
No heat & humidity in March in Cornwall (Newquay)0
No heat & humidity in April in Cornwall (Newquay)0
No heat & humidity in May in Cornwall (Newquay)0
No heat & humidity in June in Cornwall (Newquay)0
No heat & humidity in July in Cornwall (Newquay)0
No heat & humidity in August in Cornwall (Newquay)0
No heat & humidity in September in Cornwall (Newquay)0
No heat & humidity in October in Cornwall (Newquay)0
No heat & humidity in November in Cornwall (Newquay)0
No heat & humidity in December in Cornwall (Newquay)0
Sea temperature
10°C sea temperature in January in Cornwall (Newquay)10
9°C sea temperature in February in Cornwall (Newquay)9
9°C sea temperature in March in Cornwall (Newquay)9
10°C sea temperature in April in Cornwall (Newquay)10
12°C sea temperature in May in Cornwall (Newquay)12
14°C sea temperature in June in Cornwall (Newquay)14
16°C sea temperature in July in Cornwall (Newquay)16
16°C sea temperature in August in Cornwall (Newquay)16
16°C sea temperature in September in Cornwall (Newquay)16
14°C sea temperature in October in Cornwall (Newquay)14
13°C sea temperature in November in Cornwall (Newquay)13
11°C sea temperature in December in Cornwall (Newquay)11

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Cornwall

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
9 hours of daylight per day in January in Cornwall (Newquay)9
10 hours of daylight per day in February in Cornwall (Newquay)10
12 hours of daylight per day in March in Cornwall (Newquay)12
14 hours of daylight per day in April in Cornwall (Newquay)14
16 hours of daylight per day in May in Cornwall (Newquay)16
16 hours of daylight per day in June in Cornwall (Newquay)16
16 hours of daylight per day in July in Cornwall (Newquay)16
14 hours of daylight per day in August in Cornwall (Newquay)14
13 hours of daylight per day in September in Cornwall (Newquay)13
11 hours of daylight per day in October in Cornwall (Newquay)11
9 hours of daylight per day in November in Cornwall (Newquay)9
8 hours of daylight per day in December in Cornwall (Newquay)8
UV Index (Maximum)
UV (maximum) index 1 (Low) in January in Cornwall (Newquay)1
UV (maximum) index 1 (Low) in February in Cornwall (Newquay)1
UV (maximum) index 3 (Moderate) in March in Cornwall (Newquay)3
UV (maximum) index 4 (Moderate) in April in Cornwall (Newquay)4
UV (maximum) index 6 (High) in May in Cornwall (Newquay)6
UV (maximum) index 6 (High) in June in Cornwall (Newquay)6
UV (maximum) index 7 (High) in July in Cornwall (Newquay)7
UV (maximum) index 6 (High) in August in Cornwall (Newquay)6
UV (maximum) index 4 (Moderate) in September in Cornwall (Newquay)4
UV (maximum) index 2 (Low) in October in Cornwall (Newquay)2
UV (maximum) index 1 (Low) in November in Cornwall (Newquay)1
UV (maximum) index 1 (Low) in December in Cornwall (Newquay)1

Rainfall in Cornwall

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
21 days with some rainfall in January in Cornwall (Newquay)21
16 days with some rainfall in February in Cornwall (Newquay)16
18 days with some rainfall in March in Cornwall (Newquay)18
14 days with some rainfall in April in Cornwall (Newquay)14
15 days with some rainfall in May in Cornwall (Newquay)15
13 days with some rainfall in June in Cornwall (Newquay)13
13 days with some rainfall in July in Cornwall (Newquay)13
15 days with some rainfall in August in Cornwall (Newquay)15
15 days with some rainfall in September in Cornwall (Newquay)15
18 days with some rainfall in October in Cornwall (Newquay)18
20 days with some rainfall in November in Cornwall (Newquay)20
21 days with some rainfall in December in Cornwall (Newquay)21
Average monthly rainfall (mm)
122 mm monthly rainfall in January in Cornwall (Newquay)122
89 mm monthly rainfall in February in Cornwall (Newquay)89
88 mm monthly rainfall in March in Cornwall (Newquay)88
58 mm monthly rainfall in April in Cornwall (Newquay)58
60 mm monthly rainfall in May in Cornwall (Newquay)60
61 mm monthly rainfall in June in Cornwall (Newquay)61
58 mm monthly rainfall in July in Cornwall (Newquay)58
72 mm monthly rainfall in August in Cornwall (Newquay)72
81 mm monthly rainfall in September in Cornwall (Newquay)81
103 mm monthly rainfall in October in Cornwall (Newquay)103
118 mm monthly rainfall in November in Cornwall (Newquay)118
123 mm monthly rainfall in December in Cornwall (Newquay)123

Compare Cornwall weather with the UK

The weather chart below compares the average monthly maximum daytime temperature for Cornwall, England (Newquay) and the UK (London).

Maximum daytime temperature (°C)

Cornwall, England (Newquay)
UK (London)
9
7
8
7
10
10
12
13
14
17
17
20
19
22
19
22
17
19
15
15
11
10
10
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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