Maynooth climate — normals and trends
Maynooth (Ireland) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.0 °C and it receives 741 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 (15.8 °C on average) and the coldest is January (5.1 °C). Rainfall peaks in August.
Maynooth averages 20 frost days, 0 hot days (≥ 30 °C) and 146 rainy days per year.
Maynooth 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 28 to 12 per year over the period.
The hottest day of the period reached 30.2 °C (on 18 July 2022) and the coldest -12.9 °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
MaynoothLeinster
- coords
- 53.38°, -6.59°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.0°C
Average daily high
13.0°C
Average daily low
7.2°C
Annual rainfall
741mm
Sunshine / day
7.4h
Mean relative humidity
81%
Average peak wind
20.6km/h
Seasonal range
10.7°C
Frost days (< 0 °C)
20 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
146 d/yr
Annual snowfall
10.3 cm
Average feels-like high
10.2 °C
Average feels-like low
4.2 °C
Average peak gust
42.5 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.8 °C
since 1940
+0.1 °C per decade · r² = 0.19 · 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
30.2 °C
18 July 2022
Coldest day
-12.9 °C
12 January 1982
Wettest day
54 mm
25 August 1986
Windiest day
59.0 km/h
24 December 1997
Strongest gust
144.4 km/h
24 December 1997
Hottest feels-like
32.9 °C
13 July 1983
Coldest feels-like
-17.1 °C
12 January 1982
Snowiest day
28.7 cm
8 December 1954
Sunniest day
16.8 h
19 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 | 7.3 °C | -0.1 °C | 64 mm | -0 mm |
| Feb | 8.9 °C | +1.0 °C | 59 mm | +9 mm |
| Mar | 11.7 °C | +1.9 °C | 15 mm | -39 mm |
| Apr | 14.6 °C | +2.6 °C | 100 mm | +45 mm |
| May | 16.8 °C | +2.0 °C | 40 mm | -23 mm |
| Jun | 18.9 °C | +1.3 °C | 78 mm | +17 mm |
| Jul | 20.5 °C | +1.4 °C | 78 mm | +14 mm |
| Aug | 20.0 °C | +1.2 °C | 33 mm | -36 mm |
| Sep | 16.4 °C | -0.3 °C | 95 mm | +32 mm |
| Oct | 13.5 °C | 0.0 °C | 88 mm | +21 mm |
| Nov | 10.9 °C | +1.1 °C | 118 mm | +55 mm |
| Dec | 9.4 °C | +1.3 °C | 68 mm | +0 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 Maynooth?
Maynooth has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.0 °C and it receives 741 mm of precipitation per year.
What is the hottest day ever recorded in Maynooth?
The hottest day measured in Maynooth between 1940 and 2025 was 18 July 2022, reaching 30.2 °C.
What is the coldest day in Maynooth?
The coldest day measured in Maynooth between 1940 and 2025 was 12 January 1982, at -12.9 °C.
Does it snow in Maynooth?
Yes. Maynooth gets on average 10.3 cm of snow per year and has around 20 frost days.
Has the climate of Maynooth warmed?
Yes: Maynooth warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Maynooth?
The wettest day measured in Maynooth between 1940 and 2025 was 25 August 1986, with 54 mm of rain in 24 hours.
What was the windiest day in Maynooth?
The windiest day measured in Maynooth between 1940 and 2025 was 24 December 1997, with winds reaching 59.0 km/h.
What is the warmest month in Maynooth?
The warmest month in Maynooth is July (15.8 °C on average); the coldest is January (5.1 °C).
How much does it rain in Maynooth?
Maynooth receives on average 741 mm of precipitation per year, spread over about 146 rainy days.
Is it sunny in Maynooth?
Maynooth gets on average 7.4 hours of sunshine per day, roughly 2,701 hours per year over 1940-2025.
What is the biggest single-day snowfall in Maynooth?
The heaviest 24-hour snowfall measured in Maynooth between 1940 and 2025 was 8 December 1954, with 28.7 cm.
Are there tropical nights in Maynooth?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Maynooth.
What was the most extreme apparent temperature in Maynooth?
In Maynooth, between 1940 and 2025, the highest apparent temperature reached 32.9 °C on 13 July 1983, and the lowest was -17.1 °C on 12 January 1982.
Compare Maynooth with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Maynooth