Donaghadee climate — normals and trends
Donaghadee (United Kingdom) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.6 °C and it receives 1,122 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 (13.9 °C on average) and the coldest is February (5.9 °C). Rainfall peaks in December.
Donaghadee averages 0 frost days, 0 hot days (≥ 30 °C) and 187 rainy days per year.
Donaghadee has warmed by +0.8 °C between 1940 and 2025, or +0.10 °C per decade. This trend is statistically significant.
The hottest day of the period reached 19.5 °C (on 2 July 1941) and the coldest -2.1 °C (on 12 January 1987).
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
DonaghadeeNorthern Ireland
- coords
- 54.64°, -5.54°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.6°C
Average daily high
10.7°C
Average daily low
8.6°C
Annual rainfall
1,122mm
Sunshine / day
7.7h
Mean relative humidity
82%
Average peak wind
31.7km/h
Seasonal range
8.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
187 d/yr
Annual snowfall
9.4 cm
Average feels-like high
7.2 °C
Average feels-like low
3.9 °C
Average peak gust
43.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.8 °C
since 1940
+0.1 °C per decade · r² = 0.26 · 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
19.5 °C
2 July 1941
Coldest day
-2.1 °C
12 January 1987
Wettest day
58 mm
2 October 1981
Windiest day
81.5 km/h
27 October 1959
Strongest gust
128.2 km/h
27 October 1959
Hottest feels-like
21.2 °C
9 August 2003
Coldest feels-like
-11.0 °C
13 January 1987
Snowiest day
19.2 cm
22 March 2013
Sunniest day
16.9 h
29 June 2025
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 | +0.3 °C | 76 mm | -34 mm |
| Feb | 7.8 °C | +0.8 °C | 64 mm | -21 mm |
| Mar | 9.1 °C | +1.4 °C | 30 mm | -51 mm |
| Apr | 10.5 °C | +1.7 °C | 66 mm | -2 mm |
| May | 12.6 °C | +1.9 °C | 56 mm | -11 mm |
| Jun | 14.5 °C | +1.7 °C | 134 mm | +61 mm |
| Jul | 15.8 °C | +1.4 °C | 92 mm | +6 mm |
| Aug | 16.5 °C | +1.6 °C | 65 mm | -27 mm |
| Sep | 15.0 °C | +0.8 °C | 131 mm | +30 mm |
| Oct | 13.0 °C | +0.5 °C | 149 mm | +28 mm |
| Nov | 10.8 °C | +0.8 °C | 182 mm | +64 mm |
| Dec | 9.3 °C | +0.8 °C | 137 mm | +16 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 Donaghadee?
Donaghadee has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.6 °C and it receives 1,122 mm of precipitation per year.
What is the hottest day ever recorded in Donaghadee?
The hottest day measured in Donaghadee between 1940 and 2025 was 2 July 1941, reaching 19.5 °C.
What is the coldest day in Donaghadee?
The coldest day measured in Donaghadee between 1940 and 2025 was 12 January 1987, at -2.1 °C.
Does it snow in Donaghadee?
Yes. Donaghadee gets on average 9.4 cm of snow per year and has around 0 frost days.
Has the climate of Donaghadee warmed?
Yes: Donaghadee warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Donaghadee?
The wettest day measured in Donaghadee between 1940 and 2025 was 2 October 1981, with 58 mm of rain in 24 hours.
What was the windiest day in Donaghadee?
The windiest day measured in Donaghadee between 1940 and 2025 was 27 October 1959, with winds reaching 81.5 km/h.
What is the warmest month in Donaghadee?
The warmest month in Donaghadee is August (13.9 °C on average); the coldest is February (5.9 °C).
How much does it rain in Donaghadee?
Donaghadee receives on average 1,122 mm of precipitation per year, spread over about 187 rainy days.
Is it sunny in Donaghadee?
Donaghadee gets on average 7.7 hours of sunshine per day, roughly 2,811 hours per year over 1940-2025.
What is the biggest single-day snowfall in Donaghadee?
The heaviest 24-hour snowfall measured in Donaghadee between 1940 and 2025 was 22 March 2013, with 19.2 cm.
Are there tropical nights in Donaghadee?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Donaghadee.
What was the most extreme apparent temperature in Donaghadee?
In Donaghadee, between 1940 and 2025, the highest apparent temperature reached 21.2 °C on 9 August 2003, and the lowest was -11.0 °C on 13 January 1987.
Compare Donaghadee with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Donaghadee