Cork climate — normals and trends
Cork (Ireland) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.9 °C and it receives 833 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 July (15.2 °C on average) and the coldest is January (5.5 °C). Rainfall peaks in October.
Cork averages 19 frost days, 0 hot days (≥ 30 °C) and 145 rainy days per year.
Cork has warmed by +0.5 °C between 1940 and 2025, or +0.05 °C per decade. This trend is statistically significant.
The number of frost days there went from about 24 to 14 per year over the period.
The hottest day of the period reached 27.9 °C (on 13 July 1983) and the coldest -11.3 °C (on 22 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
CorkMunster
- coords
- 51.90°, -8.47°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.9°C
Average daily high
12.6°C
Average daily low
7.1°C
Annual rainfall
833mm
Sunshine / day
7.5h
Mean relative humidity
83%
Average peak wind
20.5km/h
Seasonal range
9.7°C
Frost days (< 0 °C)
19 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
145 d/yr
Annual snowfall
5.8 cm
Average feels-like high
10.1 °C
Average feels-like low
4.3 °C
Average peak gust
43.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.5 °C
since 1940
+0.1 °C per decade · r² = 0.08 · p = 0.008
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
27.9 °C
13 July 1983
Coldest day
-11.3 °C
22 January 1940
Wettest day
64 mm
25 August 1986
Windiest day
67.7 km/h
23 April 1947
Strongest gust
130.0 km/h
12 January 1974
Hottest feels-like
32.1 °C
13 July 1983
Coldest feels-like
-16.1 °C
22 January 1940
Snowiest day
16.4 cm
19 February 1978
Sunniest day
16.3 h
21 June 1944
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 | 7.6 °C | -0.1 °C | 117 mm | +36 mm |
| Feb | 9.2 °C | +1.2 °C | 106 mm | +40 mm |
| Mar | 11.1 °C | +1.6 °C | 38 mm | -29 mm |
| Apr | 14.1 °C | +2.6 °C | 59 mm | 0 mm |
| May | 17.5 °C | +3.4 °C | 31 mm | -39 mm |
| Jun | 17.8 °C | +1.1 °C | 42 mm | -15 mm |
| Jul | 19.8 °C | +1.5 °C | 76 mm | +16 mm |
| Aug | 19.5 °C | +1.4 °C | 44 mm | -22 mm |
| Sep | 15.8 °C | -0.3 °C | 106 mm | +38 mm |
| Oct | 13.4 °C | +0.2 °C | 124 mm | +41 mm |
| Nov | 11.1 °C | +1.1 °C | 123 mm | +51 mm |
| Dec | 9.1 °C | +0.7 °C | 101 mm | +18 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 Cork?
Cork has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.9 °C and it receives 833 mm of precipitation per year.
What is the hottest day ever recorded in Cork?
The hottest day measured in Cork between 1940 and 2025 was 13 July 1983, reaching 27.9 °C.
What is the coldest day in Cork?
The coldest day measured in Cork between 1940 and 2025 was 22 January 1940, at -11.3 °C.
Does it snow in Cork?
Yes. Cork gets on average 5.8 cm of snow per year and has around 19 frost days.
Has the climate of Cork warmed?
Yes: Cork warmed by +0.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Cork?
The wettest day measured in Cork between 1940 and 2025 was 25 August 1986, with 64 mm of rain in 24 hours.
What was the windiest day in Cork?
The windiest day measured in Cork between 1940 and 2025 was 23 April 1947, with winds reaching 67.7 km/h.
What is the warmest month in Cork?
The warmest month in Cork is July (15.2 °C on average); the coldest is January (5.5 °C).
How much does it rain in Cork?
Cork receives on average 833 mm of precipitation per year, spread over about 145 rainy days.
Is it sunny in Cork?
Cork gets on average 7.5 hours of sunshine per day, roughly 2,738 hours per year over 1940-2025.
What is the biggest single-day snowfall in Cork?
The heaviest 24-hour snowfall measured in Cork between 1940 and 2025 was 19 February 1978, with 16.4 cm.
Are there tropical nights in Cork?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Cork.
What was the most extreme apparent temperature in Cork?
In Cork, between 1940 and 2025, the highest apparent temperature reached 32.1 °C on 13 July 1983, and the lowest was -16.1 °C on 22 January 1940.
Compare Cork with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Cork