Navan climate — normals and trends
Navan (Ireland) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.7 °C and it receives 800 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 (15.4 °C on average) and the coldest is January (4.7 °C). Rainfall peaks in August.
Navan averages 27 frost days, 0 hot days (≥ 30 °C) and 151 rainy days per year.
Navan has warmed by +0.8 °C between 1940 and 2025, or +0.09 °C per decade. This trend is statistically significant.
The number of frost days there went from about 36 to 18 per year over the period.
The hottest day of the period reached 30.8 °C (on 18 July 2022) and the coldest -16.3 °C (on 12 January 1982).
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
NavanLeinster
- coords
- 53.65°, -6.68°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.7°C
Average daily high
12.7°C
Average daily low
6.7°C
Annual rainfall
800mm
Sunshine / day
6.8h
Mean relative humidity
82%
Average peak wind
20.0km/h
Seasonal range
10.7°C
Frost days (< 0 °C)
27 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
151 d/yr
Annual snowfall
13.9 cm
Average feels-like high
10.0 °C
Average feels-like low
3.8 °C
Average peak gust
42.3 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.8 °C
since 1940
+0.1 °C per decade · r² = 0.17 · 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
30.8 °C
18 July 2022
Coldest day
-16.3 °C
12 January 1982
Wettest day
58 mm
6 September 2010
Windiest day
63.4 km/h
16 September 1961
Strongest gust
133.9 km/h
24 December 1997
Hottest feels-like
33.3 °C
13 July 1983
Coldest feels-like
-20.6 °C
12 January 1982
Snowiest day
25.2 cm
8 December 1954
Sunniest day
16.8 h
20 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 | 7.0 °C | 0.0 °C | 60 mm | -9 mm |
| Feb | 8.7 °C | +1.1 °C | 61 mm | +7 mm |
| Mar | 11.5 °C | +1.9 °C | 20 mm | -39 mm |
| Apr | 14.6 °C | +2.7 °C | 105 mm | +45 mm |
| May | 17.1 °C | +2.3 °C | 44 mm | -25 mm |
| Jun | 18.6 °C | +1.1 °C | 76 mm | +11 mm |
| Jul | 20.3 °C | +1.4 °C | 69 mm | +2 mm |
| Aug | 19.8 °C | +1.3 °C | 42 mm | -33 mm |
| Sep | 16.0 °C | -0.4 °C | 95 mm | +28 mm |
| Oct | 13.2 °C | 0.0 °C | 103 mm | +31 mm |
| Nov | 10.4 °C | +0.9 °C | 106 mm | +38 mm |
| Dec | 9.0 °C | +1.3 °C | 77 mm | +3 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 Navan?
Navan has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.7 °C and it receives 800 mm of precipitation per year.
What is the hottest day ever recorded in Navan?
The hottest day measured in Navan between 1940 and 2025 was 18 July 2022, reaching 30.8 °C.
What is the coldest day in Navan?
The coldest day measured in Navan between 1940 and 2025 was 12 January 1982, at -16.3 °C.
Does it snow in Navan?
Yes. Navan gets on average 13.9 cm of snow per year and has around 27 frost days.
Has the climate of Navan warmed?
Yes: Navan warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Navan?
The wettest day measured in Navan between 1940 and 2025 was 6 September 2010, with 58 mm of rain in 24 hours.
What was the windiest day in Navan?
The windiest day measured in Navan between 1940 and 2025 was 16 September 1961, with winds reaching 63.4 km/h.
What is the warmest month in Navan?
The warmest month in Navan is July (15.4 °C on average); the coldest is January (4.7 °C).
How much does it rain in Navan?
Navan receives on average 800 mm of precipitation per year, spread over about 151 rainy days.
Is it sunny in Navan?
Navan gets on average 6.8 hours of sunshine per day, roughly 2,482 hours per year over 1940-2025.
What is the biggest single-day snowfall in Navan?
The heaviest 24-hour snowfall measured in Navan between 1940 and 2025 was 8 December 1954, with 25.2 cm.
Are there tropical nights in Navan?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Navan.
What was the most extreme apparent temperature in Navan?
In Navan, between 1940 and 2025, the highest apparent temperature reached 33.3 °C on 13 July 1983, and the lowest was -20.6 °C on 12 January 1982.
Compare Navan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Navan