Wales weather by month

Check out Wales 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
7°C maximum daytime temperature in January in Cardiff7
7°C maximum daytime temperature in February in Cardiff7
10°C maximum daytime temperature in March in Cardiff10
12°C maximum daytime temperature in April in Cardiff12
16°C maximum daytime temperature in May in Cardiff16
19°C maximum daytime temperature in June in Cardiff19
20°C maximum daytime temperature in July in Cardiff20
20°C maximum daytime temperature in August in Cardiff20
18°C maximum daytime temperature in September in Cardiff18
14°C maximum daytime temperature in October in Cardiff14
10°C maximum daytime temperature in November in Cardiff10
8°C maximum daytime temperature in December in Cardiff8
Hours of sunshine (daily)
Days with some rainfall
20 days with some rainfall in January in Cardiff20
15 days with some rainfall in February in Cardiff15
17 days with some rainfall in March in Cardiff17
15 days with some rainfall in April in Cardiff15
15 days with some rainfall in May in Cardiff15
14 days with some rainfall in June in Cardiff14
13 days with some rainfall in July in Cardiff13
15 days with some rainfall in August in Cardiff15
15 days with some rainfall in September in Cardiff15
18 days with some rainfall in October in Cardiff18
18 days with some rainfall in November in Cardiff18
19 days with some rainfall in December in Cardiff19
Sea temperature °C
8°C sea temperature in January in Cardiff8
7°C sea temperature in February in Cardiff7
8°C sea temperature in March in Cardiff8
9°C sea temperature in April in Cardiff9
12°C sea temperature in May in Cardiff12
15°C sea temperature in June in Cardiff15
17°C sea temperature in July in Cardiff17
18°C sea temperature in August in Cardiff18
17°C sea temperature in September in Cardiff17
14°C sea temperature in October in Cardiff14
11°C sea temperature in November in Cardiff11
9°C sea temperature in December in Cardiff9

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Wales by month

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

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The climate guide for Wales (Cardiff) 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 Wales destinations

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

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

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Wales weather averages

Temperature in Wales (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
7°C maximum daytime temperature in January in Wales (Cardiff)7
7°C maximum daytime temperature in February in Wales (Cardiff)7
10°C maximum daytime temperature in March in Wales (Cardiff)10
12°C maximum daytime temperature in April in Wales (Cardiff)12
16°C maximum daytime temperature in May in Wales (Cardiff)16
19°C maximum daytime temperature in June in Wales (Cardiff)19
20°C maximum daytime temperature in July in Wales (Cardiff)20
20°C maximum daytime temperature in August in Wales (Cardiff)20
18°C maximum daytime temperature in September in Wales (Cardiff)18
14°C maximum daytime temperature in October in Wales (Cardiff)14
10°C maximum daytime temperature in November in Wales (Cardiff)10
8°C maximum daytime temperature in December in Wales (Cardiff)8
Min temperature (night-time)
2°C minimum night-time temperature in January in Wales (Cardiff)2
2°C minimum night-time temperature in February in Wales (Cardiff)2
3°C minimum night-time temperature in March in Wales (Cardiff)3
4°C minimum night-time temperature in April in Wales (Cardiff)4
7°C minimum night-time temperature in May in Wales (Cardiff)7
10°C minimum night-time temperature in June in Wales (Cardiff)10
12°C minimum night-time temperature in July in Wales (Cardiff)12
12°C minimum night-time temperature in August in Wales (Cardiff)12
10°C minimum night-time temperature in September in Wales (Cardiff)10
8°C minimum night-time temperature in October in Wales (Cardiff)8
5°C minimum night-time temperature in November in Wales (Cardiff)5
3°C minimum night-time temperature in December in Wales (Cardiff)3
Heat & Humidity
No heat & humidity in January in Wales (Cardiff)0
No heat & humidity in February in Wales (Cardiff)0
No heat & humidity in March in Wales (Cardiff)0
No heat & humidity in April in Wales (Cardiff)0
No heat & humidity in May in Wales (Cardiff)0
No heat & humidity in June in Wales (Cardiff)0
No heat & humidity in July in Wales (Cardiff)0
No heat & humidity in August in Wales (Cardiff)0
No heat & humidity in September in Wales (Cardiff)0
No heat & humidity in October in Wales (Cardiff)0
No heat & humidity in November in Wales (Cardiff)0
No heat & humidity in December in Wales (Cardiff)0
Sea temperature
8°C sea temperature in January in Wales (Cardiff)8
7°C sea temperature in February in Wales (Cardiff)7
8°C sea temperature in March in Wales (Cardiff)8
9°C sea temperature in April in Wales (Cardiff)9
12°C sea temperature in May in Wales (Cardiff)12
15°C sea temperature in June in Wales (Cardiff)15
17°C sea temperature in July in Wales (Cardiff)17
18°C sea temperature in August in Wales (Cardiff)18
17°C sea temperature in September in Wales (Cardiff)17
14°C sea temperature in October in Wales (Cardiff)14
11°C sea temperature in November in Wales (Cardiff)11
9°C sea temperature in December in Wales (Cardiff)9

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

Sunshine & UV index in Wales

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
8 hours of daylight per day in January in Wales (Cardiff)8
10 hours of daylight per day in February in Wales (Cardiff)10
12 hours of daylight per day in March in Wales (Cardiff)12
14 hours of daylight per day in April in Wales (Cardiff)14
16 hours of daylight per day in May in Wales (Cardiff)16
17 hours of daylight per day in June in Wales (Cardiff)17
16 hours of daylight per day in July in Wales (Cardiff)16
15 hours of daylight per day in August in Wales (Cardiff)15
13 hours of daylight per day in September in Wales (Cardiff)13
11 hours of daylight per day in October in Wales (Cardiff)11
9 hours of daylight per day in November in Wales (Cardiff)9
8 hours of daylight per day in December in Wales (Cardiff)8
UV Index (Maximum)
UV (maximum) index 1 (Low) in January in Wales (Cardiff)1
UV (maximum) index 1 (Low) in February in Wales (Cardiff)1
UV (maximum) index 3 (Moderate) in March in Wales (Cardiff)3
UV (maximum) index 4 (Moderate) in April in Wales (Cardiff)4
UV (maximum) index 5 (Moderate) in May in Wales (Cardiff)5
UV (maximum) index 6 (High) in June in Wales (Cardiff)6
UV (maximum) index 6 (High) in July in Wales (Cardiff)6
UV (maximum) index 6 (High) in August in Wales (Cardiff)6
UV (maximum) index 4 (Moderate) in September in Wales (Cardiff)4
UV (maximum) index 2 (Low) in October in Wales (Cardiff)2
UV (maximum) index 1 (Low) in November in Wales (Cardiff)1
No UV (maximum) index in December in Wales (Cardiff)0

Rainfall in Wales

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
20 days with some rainfall in January in Wales (Cardiff)20
15 days with some rainfall in February in Wales (Cardiff)15
17 days with some rainfall in March in Wales (Cardiff)17
15 days with some rainfall in April in Wales (Cardiff)15
15 days with some rainfall in May in Wales (Cardiff)15
14 days with some rainfall in June in Wales (Cardiff)14
13 days with some rainfall in July in Wales (Cardiff)13
15 days with some rainfall in August in Wales (Cardiff)15
15 days with some rainfall in September in Wales (Cardiff)15
18 days with some rainfall in October in Wales (Cardiff)18
18 days with some rainfall in November in Wales (Cardiff)18
19 days with some rainfall in December in Wales (Cardiff)19
Average monthly rainfall (mm)
104 mm monthly rainfall in January in Wales (Cardiff)104
76 mm monthly rainfall in February in Wales (Cardiff)76
79 mm monthly rainfall in March in Wales (Cardiff)79
60 mm monthly rainfall in April in Wales (Cardiff)60
65 mm monthly rainfall in May in Wales (Cardiff)65
65 mm monthly rainfall in June in Wales (Cardiff)65
66 mm monthly rainfall in July in Wales (Cardiff)66
81 mm monthly rainfall in August in Wales (Cardiff)81
91 mm monthly rainfall in September in Wales (Cardiff)91
101 mm monthly rainfall in October in Wales (Cardiff)101
105 mm monthly rainfall in November in Wales (Cardiff)105
109 mm monthly rainfall in December in Wales (Cardiff)109

Compare Wales weather with the UK

The weather chart below compares the average monthly maximum daytime temperature for Wales (Cardiff) and the UK (London).

Maximum daytime temperature (°C)

Wales (Cardiff)
UK (London)
7
7
7
7
10
10
12
13
16
17
19
20
20
22
20
22
18
19
14
15
10
10
8
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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

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