Dunoon climate — normals and trends
Dunoon (United Kingdom) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.5 °C and it receives 1,567 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 (14.0 °C on average) and the coldest is January (3.5 °C). Rainfall peaks in October.
Dunoon averages 41 frost days, 0 hot days (≥ 30 °C) and 205 rainy days per year.
Dunoon has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The number of frost days there went from about 60 to 22 per year over the period.
The hottest day of the period reached 28.6 °C (on 4 August 1975) and the coldest -18.2 °C (on 1 March 1947).
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
DunoonScotland
- coords
- 55.95°, -4.93°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.5°C
Average daily high
11.0°C
Average daily low
5.9°C
Annual rainfall
1,567mm
Sunshine / day
7.1h
Mean relative humidity
84%
Average peak wind
20.8km/h
Seasonal range
10.5°C
Frost days (< 0 °C)
41 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
205 d/yr
Annual snowfall
47.5 cm
Average feels-like high
8.2 °C
Average feels-like low
2.7 °C
Average peak gust
47.6 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.47 · 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
28.6 °C
4 August 1975
Coldest day
-18.2 °C
1 March 1947
Wettest day
73 mm
10 August 2004
Windiest day
69.0 km/h
15 January 1968
Strongest gust
171.4 km/h
13 February 1989
Hottest feels-like
31.0 °C
29 July 1948
Coldest feels-like
-22.8 °C
1 March 1947
Snowiest day
16.9 cm
25 February 2010
Sunniest day
17.0 h
16 June 1940
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 | 6.1 °C | +0.6 °C | 74 mm | -79 mm |
| Feb | 7.3 °C | +1.4 °C | 139 mm | +15 mm |
| Mar | 10.7 °C | +3.0 °C | 67 mm | -55 mm |
| Apr | 13.6 °C | +3.4 °C | 57 mm | -38 mm |
| May | 16.3 °C | +3.1 °C | 98 mm | -1 mm |
| Jun | 15.9 °C | +0.5 °C | 158 mm | +59 mm |
| Jul | 18.2 °C | +1.6 °C | 110 mm | +0 mm |
| Aug | 18.4 °C | +1.9 °C | 143 mm | +9 mm |
| Sep | 15.0 °C | +0.4 °C | 181 mm | +33 mm |
| Oct | 12.3 °C | +0.5 °C | 203 mm | +36 mm |
| Nov | 9.3 °C | +1.0 °C | 212 mm | +59 mm |
| Dec | 7.9 °C | +1.5 °C | 237 mm | +72 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 Dunoon?
Dunoon has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 8.5 °C and it receives 1,567 mm of precipitation per year.
What is the hottest day ever recorded in Dunoon?
The hottest day measured in Dunoon between 1940 and 2025 was 4 August 1975, reaching 28.6 °C.
What is the coldest day in Dunoon?
The coldest day measured in Dunoon between 1940 and 2025 was 1 March 1947, at -18.2 °C.
Does it snow in Dunoon?
Yes. Dunoon gets on average 47.5 cm of snow per year and has around 41 frost days.
Has the climate of Dunoon warmed?
Yes: Dunoon warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Dunoon?
The wettest day measured in Dunoon between 1940 and 2025 was 10 August 2004, with 73 mm of rain in 24 hours.
What was the windiest day in Dunoon?
The windiest day measured in Dunoon between 1940 and 2025 was 15 January 1968, with winds reaching 69.0 km/h.
What is the warmest month in Dunoon?
The warmest month in Dunoon is July (14.0 °C on average); the coldest is January (3.5 °C).
How much does it rain in Dunoon?
Dunoon receives on average 1,567 mm of precipitation per year, spread over about 205 rainy days.
Is it sunny in Dunoon?
Dunoon gets on average 7.1 hours of sunshine per day, roughly 2,592 hours per year over 1940-2025.
What is the biggest single-day snowfall in Dunoon?
The heaviest 24-hour snowfall measured in Dunoon between 1940 and 2025 was 25 February 2010, with 16.9 cm.
Are there tropical nights in Dunoon?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Dunoon.
What was the most extreme apparent temperature in Dunoon?
In Dunoon, between 1940 and 2025, the highest apparent temperature reached 31.0 °C on 29 July 1948, and the lowest was -22.8 °C on 1 March 1947.
Compare Dunoon with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Dunoon