Cardigan climate — normals and trends
Cardigan (United Kingdom) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.3 °C and it receives 1,080 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is August (15.4 °C on average) and the coldest is February (5.7 °C). Rainfall peaks in November.
Cardigan averages 8 frost days, 0 hot days (≥ 30 °C) and 176 rainy days per year.
Cardigan has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The number of frost days there went from about 14 to 2 per year over the period.
The hottest day of the period reached 28.8 °C (on 18 July 2022) and the coldest -8.8 °C (on 21 January 1940).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
CardiganWales
- coords
- 52.08°, -4.66°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.3°C
Average daily high
12.1°C
Average daily low
8.5°C
Annual rainfall
1,080mm
Sunshine / day
8.5h
Mean relative humidity
83%
Average peak wind
27.2km/h
Seasonal range
9.7°C
Frost days (< 0 °C)
8 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
176 d/yr
Annual snowfall
7.6 cm
Average feels-like high
9.1 °C
Average feels-like low
4.9 °C
Average peak gust
43.0 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
11.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.33 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
28.8 °C
18 July 2022
Coldest day
-8.8 °C
21 January 1940
Wettest day
68 mm
18 October 1987
Windiest day
90.9 km/h
30 November 1954
Strongest gust
139.3 km/h
25 January 1990
Hottest feels-like
31.3 °C
29 July 1948
Coldest feels-like
-15.1 °C
21 January 1940
Snowiest day
22.3 cm
8 January 1982
Sunniest day
16.2 h
20 June 1960
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 7.7 °C | +0.2 °C | 137 mm | +31 mm |
| Feb | 8.1 °C | +0.7 °C | 86 mm | +5 mm |
| Mar | 10.5 °C | +1.8 °C | 25 mm | -53 mm |
| Apr | 13.4 °C | +2.9 °C | 111 mm | +43 mm |
| May | 15.0 °C | +2.0 °C | 44 mm | -31 mm |
| Jun | 17.0 °C | +1.6 °C | 89 mm | +22 mm |
| Jul | 18.5 °C | +1.5 °C | 57 mm | -14 mm |
| Aug | 19.4 °C | +2.2 °C | 55 mm | -30 mm |
| Sep | 16.2 °C | +0.2 °C | 171 mm | +77 mm |
| Oct | 13.9 °C | +0.4 °C | 147 mm | +32 mm |
| Nov | 11.6 °C | +1.2 °C | 251 mm | +131 mm |
| Dec | 9.8 °C | +1.2 °C | 211 mm | +92 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Cardigan?
Cardigan has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.3 °C and it receives 1,080 mm of precipitation per year.
What is the hottest day ever recorded in Cardigan?
The hottest day measured in Cardigan between 1940 and 2025 was 18 July 2022, reaching 28.8 °C.
What is the coldest day in Cardigan?
The coldest day measured in Cardigan between 1940 and 2025 was 21 January 1940, at -8.8 °C.
Does it snow in Cardigan?
Yes. Cardigan gets on average 7.6 cm of snow per year and has around 8 frost days.
Has the climate of Cardigan warmed?
Yes: Cardigan warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Cardigan?
The wettest day measured in Cardigan between 1940 and 2025 was 18 October 1987, with 68 mm of rain in 24 hours.
What was the windiest day in Cardigan?
The windiest day measured in Cardigan between 1940 and 2025 was 30 November 1954, with winds reaching 90.9 km/h.
What is the warmest month in Cardigan?
The warmest month in Cardigan is August (15.4 °C on average); the coldest is February (5.7 °C).
How much does it rain in Cardigan?
Cardigan receives on average 1,080 mm of precipitation per year, spread over about 176 rainy days.
Is it sunny in Cardigan?
Cardigan gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.
What is the biggest single-day snowfall in Cardigan?
The heaviest 24-hour snowfall measured in Cardigan between 1940 and 2025 was 8 January 1982, with 22.3 cm.
Are there tropical nights in Cardigan?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Cardigan.
What was the most extreme apparent temperature in Cardigan?
In Cardigan, between 1940 and 2025, the highest apparent temperature reached 31.3 °C on 29 July 1948, and the lowest was -15.1 °C on 21 January 1940.
Compare Cardigan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Cardigan