Nairn climate — normals and trends
Nairn (United Kingdom) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.2 °C and it receives 821 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 (14.4 °C on average) and the coldest is January (2.6 °C). Rainfall peaks in August.
Nairn averages 56 frost days, 0 hot days (≥ 30 °C) and 165 rainy days per year.
Nairn has warmed by +2.0 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The number of frost days there went from about 80 to 32 per year over the period.
The hottest day of the period reached 30.0 °C (on 4 August 1975) and the coldest -18.2 °C (on 17 January 1963).
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
NairnScotland
- coords
- 57.58°, -3.88°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.2°C
Average daily high
11.1°C
Average daily low
5.2°C
Annual rainfall
821mm
Sunshine / day
6.9h
Mean relative humidity
80%
Average peak wind
18.5km/h
Seasonal range
11.8°C
Frost days (< 0 °C)
56 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
165 d/yr
Annual snowfall
42.2 cm
Average feels-like high
8.2 °C
Average feels-like low
2.1 °C
Average peak gust
40.7 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
8.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.51 · 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
30.0 °C
4 August 1975
Coldest day
-18.2 °C
17 January 1963
Wettest day
50 mm
30 July 1956
Windiest day
56.3 km/h
17 January 1993
Strongest gust
126.0 km/h
22 January 1993
Hottest feels-like
34.0 °C
29 July 1948
Coldest feels-like
-23.0 °C
17 January 1963
Snowiest day
27.4 cm
28 January 1978
Sunniest day
17.2 h
16 June 2023
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 | 5.3 °C | +0.5 °C | 61 mm | -7 mm |
| Feb | 7.5 °C | +1.9 °C | 31 mm | -24 mm |
| Mar | 10.8 °C | +2.9 °C | 54 mm | -6 mm |
| Apr | 14.7 °C | +4.2 °C | 29 mm | -32 mm |
| May | 16.5 °C | +2.8 °C | 35 mm | -34 mm |
| Jun | 18.0 °C | +1.8 °C | 54 mm | -16 mm |
| Jul | 20.6 °C | +2.8 °C | 77 mm | -1 mm |
| Aug | 19.9 °C | +2.5 °C | 49 mm | -33 mm |
| Sep | 16.1 °C | +1.1 °C | 71 mm | +3 mm |
| Oct | 12.6 °C | +1.0 °C | 101 mm | +28 mm |
| Nov | 8.3 °C | +0.7 °C | 77 mm | +12 mm |
| Dec | 7.5 °C | +2.0 °C | 61 mm | -10 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 Nairn?
Nairn has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 8.2 °C and it receives 821 mm of precipitation per year.
What is the hottest day ever recorded in Nairn?
The hottest day measured in Nairn between 1940 and 2025 was 4 August 1975, reaching 30.0 °C.
What is the coldest day in Nairn?
The coldest day measured in Nairn between 1940 and 2025 was 17 January 1963, at -18.2 °C.
Does it snow in Nairn?
Yes. Nairn gets on average 42.2 cm of snow per year and has around 56 frost days.
Has the climate of Nairn warmed?
Yes: Nairn warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Nairn?
The wettest day measured in Nairn between 1940 and 2025 was 30 July 1956, with 50 mm of rain in 24 hours.
What was the windiest day in Nairn?
The windiest day measured in Nairn between 1940 and 2025 was 17 January 1993, with winds reaching 56.3 km/h.
What is the warmest month in Nairn?
The warmest month in Nairn is July (14.4 °C on average); the coldest is January (2.6 °C).
How much does it rain in Nairn?
Nairn receives on average 821 mm of precipitation per year, spread over about 165 rainy days.
Is it sunny in Nairn?
Nairn gets on average 6.9 hours of sunshine per day, roughly 2,519 hours per year over 1940-2025.
What is the biggest single-day snowfall in Nairn?
The heaviest 24-hour snowfall measured in Nairn between 1940 and 2025 was 28 January 1978, with 27.4 cm.
Are there tropical nights in Nairn?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Nairn.
What was the most extreme apparent temperature in Nairn?
In Nairn, between 1940 and 2025, the highest apparent temperature reached 34.0 °C on 29 July 1948, and the lowest was -23.0 °C on 17 January 1963.
Compare Nairn with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Nairn