CERN
CERN (science centre) sits at 430 m (Geneva), near Meyrin, Genève, Globe de la science. The weather above is computed for the site itself: hourly forecast to pick the best visiting slot (rain, sun, UV), golden hours for photography, 15-day forecast for planning and the 1991–2020 climate for the best season.
Climate of CERN: 1991–2020 normals
In CERN (430 m), the mean annual temperature is 11.0 °C. The warmest month is July (20.5 °C on average) and the coldest January (2.3 °C). About 952 mm of precipitation falls per year, peaking in October (96 mm) with a minimum in February (58 mm). The sun shines for about 1932 hours a year, mostly in July (271 h). On average there are 69 frost days and 18 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 33.1 °C and the absolute minimum −6.8 °C.
Mean monthly precipitation (mm) — bar height relative to the wettest month.
| Month | Mean T | Abs. max | Abs. min | Precip. (mm) | Sunshine (h) | Frost days | Summer days |
|---|---|---|---|---|---|---|---|
| Jan | 2.3 °C | 12.3 °C | −6.8 °C | 75 | 64 | 19 | 0 |
| Feb | 3.0 °C | 14.4 °C | −6.2 °C | 58 | 101 | 17 | 0 |
| Mar | 6.8 °C | 19.4 °C | −3.5 °C | 64 | 167 | 8 | 0 |
| Apr | 10.4 °C | 23.4 °C | −0.5 °C | 67 | 192 | 1 | 1 |
| May | 14.5 °C | 27.8 °C | 3.5 °C | 79 | 215 | 0 | 4 |
| Jun | 18.4 °C | 31.4 °C | 7.4 °C | 83 | 247 | 0 | 14 |
| Jul | 20.5 °C | 33.1 °C | 9.7 °C | 80 | 271 | 0 | 21 |
| Aug | 20.0 °C | 32.6 °C | 9.0 °C | 81 | 246 | 0 | 18 |
| Sep | 15.7 °C | 27.5 °C | 5.4 °C | 88 | 190 | 0 | 6 |
| Oct | 11.4 °C | 22.2 °C | 1.3 °C | 96 | 121 | 1 | 0 |
| Nov | 6.2 °C | 16.8 °C | −3.1 °C | 90 | 68 | 7 | 0 |
| Dec | 3.1 °C | 12.7 °C | −5.8 °C | 92 | 50 | 15 | 0 |
| Year | 11.0 °C | 33.1 °C | −6.8 °C | 952 | 1932 | 69 | 64 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Genève / Cointrin (6 km, 411 m), La Dôle (21 km, 1670 m), Nyon / Changins (23 km, 458 m), adjusted to the elevation of CERN (430 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Sights & landmarks
- Weather Palais des Nations (UN Geneva) (7 km · 400 m)
- Weather Geneva Water Jet (Jet d'Eau) (8 km · 372 m)
- Weather Lausanne Cathedral (55 km · 525 m)
- Weather Sauvabelin Tower (56 km · 670 m)
- Weather Vallorbe Caves (59 km · 800 m)
- Weather Lavaux vineyards (UNESCO) (60 km · 500 m)
Nearby municipalities
- Weather Meyrin (2 km)
- Weather Satigny (3 km)
- Weather Vernier (5 km)
- Weather Aire-la-Ville (5 km)
- Weather Le Grand-Saconnex (5 km)
- Weather Russin (6 km)
- Weather Pregny-Chambésy (6 km)
- Weather Cartigny (7 km)
Sights & landmarks Weather Meyrin
Frequently asked questions about the weather: CERN
When is the best time to visit CERN?
Pick a rain-free slot in the hourly forecast; for photos, aim for the golden hours (sunrise/sunset) shown above. The sunniest month is July and the warmest July (20.5 °C).
What will the weather be like at CERN tomorrow?
The “15-Day Forecast” section and the “7-day forecast” block give tomorrow's weather at CERN: min/max temperature, precipitation, wind. Updated hourly.
Where is CERN?
CERN is at 430 m, Geneva, near Meyrin, Genève, Globe de la science. See the nearby municipalities below for the weather around it.
What is the warmest month in CERN?
The warmest month in CERN is July, averaging 20.5 °C (1991–2020 normal). The coldest is January at 2.3 °C.
How much does it rain in CERN per year?
CERN receives about 952 mm of precipitation a year. The wettest month is October (96 mm), the driest February (58 mm).
When is the best time to visit CERN?
For warmth and sunshine: July (20.5 °C on average, 271 h of sun). The coldest month is January (2.3 °C). Check the 15-day forecast above for your dates.