Weather in Cornwall

Calculated from weather data of Cornwall Airport Newquay (EGHQ) between 2020 and 2024.

Maximum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	8.7	8.5	9.5	10.0	7.9	9.5
February	9.5	10.9	9.5	10.9	9.0	10.1
March	10.3	10.6	10.5	12.0	10.5	10.3
April	12.5		12.4	13.0	11.6	14.9
May	15.0		16.0	15.5	13.0	16.5
June	17.9		20.0	18.1	17.6	17.1
July	19.3		17.8	21.0	21.3	17.3
August	18.8		18.1	22.6	18.5	18.6
September	17.5		19.8	17.8	18.3	17.1
October	14.6		16.0	16.3	15.0	13.3
November	11.3		11.4	13.0	11.1	12.3
December	9.7		10.8	7.0	10.6	9.5
Average	13.3	10.0	14.3	15.0	13.7	13.8

46th highest temperature of United Kingdom

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	4.7	4	5	4	4	6
February	5.5	7	5	7	5	6
March	5.9	6	6	7	5	5
April	6.8		6	7	5	8
May	9.5		10	10	8	9
June	12.6		14	12	12	12
July	13.3		14	15	7	13
August	14.2		14	16	13	14
September	12.7		14	13	13	12
October	10.5		11	12	11	10
November	7.8		8	9	8	8
December	6.2		8	2	8	5
Average	8.7	5.8	9.6	9.6	8.2	8.9

77th lowest temperature of United Kingdom

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days	2024	2023	2022	2021	2020
30 °C or warmer	0	0	4	0	0
25 °C or warmer	0	4	10	8	2
20 °C or warmer	0	30	42	24	24
0 °C or colder	5	2	4	9	0

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	16.4	14	12	12	18	17
February	16.2	21	8	16	14	22
March	17.3	22	23	8	5	14
April	7.4		12	8	1	4
May	7.8		5	7	16	1
June	9.9		4	7	9	10
July	8.3		16	5	8	9
August	9.9		14	7	5	8
September	11.9		6	13	9	7
October	15.8		13	10	13	22
November	15.2		11	17	12	12
December	20.1		21	9	17	21
Average	13.0	19.5	11.7	9.1	9.8	11.0

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (km/h)

Month	Average	2024	2023	2022	2021	2020
January	23.6	23	25	20	23	23
February	28.0	26	21	33	29	37
March	25.1	26	25	24	22	27
April	21.0		22	20	19	19
May	20.3		18	20	25	22
June	19.2		17	20	17	21
July	20.1		24	20	18	22
August	20.4		22	17	20	21
September	21.4		21	21	18	19
October	23.5		21	24	22	29
November	24.6		27	28	19	25
December	26.4		31	17	29	25
Average	22.6	25.0	22.2	21.4	21.2	23.6

14th highest wind speed of United Kingdom

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	SW	W	W	W	SW
February	SW	SW	W	S	W
March	SW	SW	SE	W	SW
April		S	S	NE	SE
May		N	W	SW	SE
June		SW	W	NW	W
July		SW	NW	W	W
August		W	NW	W	W
September		S	NW	SW	W
October		S	S	SW	W
November		W	SW	NW	SW
December		W	SE	SW	W

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

Cornwall weather Q&A

What is the warmest month in Cornwall?

The warmest month is July with an average temperature of 19 °C over the past years.

What is the coldest month in Cornwall?

The coldest month is January with an average daytime temperature of 9 °C in the past few years.

Which month is the wettest in Cornwall?

Chance of precipitation is the highest in December with a probability of around 20.2 %.

Which month is the driest in Cornwall?

The least rainfall and snow can be expected in April. The probability is about 7.4 %.