Neath climate — normals and trends
Neath (United Kingdom) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.1 °C and it receives 1,277 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 (15.1 °C on average) and the coldest is January (3.7 °C). Rainfall peaks in December.
Neath averages 44 frost days, 0 hot days (≥ 30 °C) and 176 rainy days per year.
Neath has warmed by +1.5 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The number of frost days there went from about 59 to 29 per year over the period.
The hottest day of the period reached 32.7 °C (on 18 July 2022) and the coldest -19.4 °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
NeathWales
- coords
- 51.66°, -3.80°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.1°C
Average daily high
12.0°C
Average daily low
6.1°C
Annual rainfall
1,277mm
Sunshine / day
8.0h
Mean relative humidity
85%
Average peak wind
21.1km/h
Seasonal range
11.4°C
Frost days (< 0 °C)
44 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
176 d/yr
Annual snowfall
20.5 cm
Average feels-like high
9.3 °C
Average feels-like low
3.0 °C
Average peak gust
45.3 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.40 · 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
32.7 °C
18 July 2022
Coldest day
-19.4 °C
21 January 1940
Wettest day
72 mm
20 October 1944
Windiest day
66.1 km/h
30 November 1954
Strongest gust
153.7 km/h
25 January 1990
Hottest feels-like
33.4 °C
29 July 1948
Coldest feels-like
-24.9 °C
21 January 1940
Snowiest day
28.6 cm
8 January 1982
Sunniest day
16.0 h
26 June 2018
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 | 6.3 °C | +0.4 °C | 152 mm | +28 mm |
| Feb | 7.1 °C | +0.8 °C | 121 mm | +22 mm |
| Mar | 11.3 °C | +2.8 °C | 26 mm | -69 mm |
| Apr | 14.8 °C | +3.6 °C | 86 mm | +2 mm |
| May | 17.3 °C | +3.0 °C | 70 mm | -31 mm |
| Jun | 18.2 °C | +1.3 °C | 122 mm | +31 mm |
| Jul | 20.2 °C | +1.8 °C | 62 mm | -34 mm |
| Aug | 20.3 °C | +2.2 °C | 82 mm | -25 mm |
| Sep | 15.9 °C | -0.2 °C | 201 mm | +97 mm |
| Oct | 13.1 °C | +0.3 °C | 143 mm | +19 mm |
| Nov | 10.5 °C | +1.5 °C | 250 mm | +131 mm |
| Dec | 8.5 °C | +1.6 °C | 244 mm | +110 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 Neath?
Neath has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.1 °C and it receives 1,277 mm of precipitation per year.
What is the hottest day ever recorded in Neath?
The hottest day measured in Neath between 1940 and 2025 was 18 July 2022, reaching 32.7 °C.
What is the coldest day in Neath?
The coldest day measured in Neath between 1940 and 2025 was 21 January 1940, at -19.4 °C.
Does it snow in Neath?
Yes. Neath gets on average 20.5 cm of snow per year and has around 44 frost days.
Has the climate of Neath warmed?
Yes: Neath warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Neath?
The wettest day measured in Neath between 1940 and 2025 was 20 October 1944, with 72 mm of rain in 24 hours.
What was the windiest day in Neath?
The windiest day measured in Neath between 1940 and 2025 was 30 November 1954, with winds reaching 66.1 km/h.
What is the warmest month in Neath?
The warmest month in Neath is July (15.1 °C on average); the coldest is January (3.7 °C).
How much does it rain in Neath?
Neath receives on average 1,277 mm of precipitation per year, spread over about 176 rainy days.
Is it sunny in Neath?
Neath gets on average 8.0 hours of sunshine per day, roughly 2,920 hours per year over 1940-2025.
What is the biggest single-day snowfall in Neath?
The heaviest 24-hour snowfall measured in Neath between 1940 and 2025 was 8 January 1982, with 28.6 cm.
Are there tropical nights in Neath?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Neath.
What was the most extreme apparent temperature in Neath?
In Neath, between 1940 and 2025, the highest apparent temperature reached 33.4 °C on 29 July 1948, and the lowest was -24.9 °C on 21 January 1940.
Compare Neath with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Neath