IJmuiden climate — normals and trends
IJmuiden (The Netherlands) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.3 °C and it receives 933 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 August (17.2 °C on average) and the coldest is February (3.9 °C). Rainfall peaks in November.
IJmuiden averages 17 frost days, 0 hot days (≥ 30 °C) and 159 rainy days per year.
IJmuiden has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The number of frost days there went from about 27 to 7 per year over the period.
The hottest day of the period reached 28.2 °C (on 26 July 2019) and the coldest -11.3 °C (on 22 January 1942).
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
IJmuidenNorth Holland
- coords
- 52.46°, 4.61°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.3°C
Average daily high
11.6°C
Average daily low
9.1°C
Annual rainfall
933mm
Sunshine / day
8.3h
Mean relative humidity
82%
Average peak wind
31.6km/h
Seasonal range
13.3°C
Frost days (< 0 °C)
17 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
159 d/yr
Annual snowfall
14.0 cm
Average feels-like high
8.3 °C
Average feels-like low
4.5 °C
Average peak gust
43.9 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
11.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.44 · 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
28.2 °C
26 July 2019
Coldest day
-11.3 °C
22 January 1942
Wettest day
58 mm
14 July 2011
Windiest day
91.0 km/h
1 February 1953
Strongest gust
142.9 km/h
25 January 1990
Hottest feels-like
31.6 °C
26 July 2019
Coldest feels-like
-20.7 °C
14 January 1987
Snowiest day
11.1 cm
7 February 2021
Sunniest day
16.0 h
30 June 2019
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 | 6.4 °C | +1.0 °C | 80 mm | +3 mm |
| Feb | 5.6 °C | +0.5 °C | 39 mm | -20 mm |
| Mar | 8.4 °C | +1.6 °C | 5 mm | -52 mm |
| Apr | 11.8 °C | +2.6 °C | 18 mm | -29 mm |
| May | 14.2 °C | +1.5 °C | 37 mm | -14 mm |
| Jun | 18.2 °C | +2.6 °C | 67 mm | +10 mm |
| Jul | 19.4 °C | +1.6 °C | 85 mm | +8 mm |
| Aug | 19.7 °C | +1.2 °C | 50 mm | -43 mm |
| Sep | 18.1 °C | +1.2 °C | 137 mm | +35 mm |
| Oct | 14.4 °C | +0.6 °C | 166 mm | +59 mm |
| Nov | 10.9 °C | +1.1 °C | 112 mm | +0 mm |
| Dec | 8.7 °C | +1.6 °C | 42 mm | -51 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 IJmuiden?
IJmuiden has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.3 °C and it receives 933 mm of precipitation per year.
What is the hottest day ever recorded in IJmuiden?
The hottest day measured in IJmuiden between 1940 and 2025 was 26 July 2019, reaching 28.2 °C.
What is the coldest day in IJmuiden?
The coldest day measured in IJmuiden between 1940 and 2025 was 22 January 1942, at -11.3 °C.
Does it snow in IJmuiden?
Yes. IJmuiden gets on average 14.0 cm of snow per year and has around 17 frost days.
Has the climate of IJmuiden warmed?
Yes: IJmuiden warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in IJmuiden?
The wettest day measured in IJmuiden between 1940 and 2025 was 14 July 2011, with 58 mm of rain in 24 hours.
What was the windiest day in IJmuiden?
The windiest day measured in IJmuiden between 1940 and 2025 was 1 February 1953, with winds reaching 91.0 km/h.
What is the warmest month in IJmuiden?
The warmest month in IJmuiden is August (17.2 °C on average); the coldest is February (3.9 °C).
How much does it rain in IJmuiden?
IJmuiden receives on average 933 mm of precipitation per year, spread over about 159 rainy days.
Is it sunny in IJmuiden?
IJmuiden gets on average 8.3 hours of sunshine per day, roughly 3,030 hours per year over 1940-2025.
What is the biggest single-day snowfall in IJmuiden?
The heaviest 24-hour snowfall measured in IJmuiden between 1940 and 2025 was 7 February 2021, with 11.1 cm.
Are there tropical nights in IJmuiden?
Yes: IJmuiden has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in IJmuiden?
In IJmuiden, between 1940 and 2025, the highest apparent temperature reached 31.6 °C on 26 July 2019, and the lowest was -20.7 °C on 14 January 1987.
Compare IJmuiden with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around IJmuiden