About Gy
Gy is a Swiss municipality located in the canton of Geneva (GE), at 46.254° latitude and 6.286° longitude. The municipality is part of the Lake Geneva region, temperate climate with lake influence, mild winters and warm summers. Also known as Gy, Gy benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Gy
The climate in Gy is characteristic of the Lake Geneva region, temperate climate with lake influence, mild winters and warm summers. Temperatures, precipitation and wind conditions vary throughout the year with local features linked to altitude and surrounding terrain. Our data comes from official weather stations and real-time Netatmo sensors for Gy and neighboring municipalities.
On this page you will find the detailed weather forecast for Gy: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Gy: 1991–2020 normals
In Gy (476 m), the mean annual temperature is 10.8 °C. The warmest month is July (20.1 °C on average) and the coldest January (2.2 °C). About 1007 mm of precipitation falls per year, peaking in December (101 mm) with a minimum in February (64 mm). The sun shines for about 1941 hours a year, mostly in July (269 h). On average there are 66 frost days and 16 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 32.3 °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 | 2.2 °C | 12.0 °C | −6.8 °C | 82 | 66 | 19 | 0 |
| Feb | 2.9 °C | 14.0 °C | −6.3 °C | 64 | 103 | 16 | 0 |
| Mar | 6.5 °C | 18.6 °C | −3.6 °C | 69 | 168 | 8 | 0 |
| Apr | 10.1 °C | 22.7 °C | −0.7 °C | 69 | 193 | 1 | 1 |
| May | 14.1 °C | 27.0 °C | 3.4 °C | 84 | 215 | 0 | 4 |
| Jun | 17.9 °C | 30.6 °C | 7.3 °C | 86 | 246 | 0 | 13 |
| Jul | 20.1 °C | 32.3 °C | 9.6 °C | 84 | 269 | 0 | 20 |
| Aug | 19.6 °C | 31.8 °C | 9.0 °C | 84 | 245 | 0 | 18 |
| Sep | 15.4 °C | 26.8 °C | 5.4 °C | 89 | 191 | 0 | 5 |
| Oct | 11.2 °C | 21.8 °C | 1.4 °C | 100 | 123 | 1 | 0 |
| Nov | 6.1 °C | 16.6 °C | −3.0 °C | 95 | 70 | 6 | 0 |
| Dec | 3.0 °C | 12.6 °C | −5.9 °C | 101 | 52 | 15 | 0 |
| Year | 10.8 °C | 32.3 °C | −6.8 °C | 1007 | 1941 | 66 | 61 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Genève / Cointrin (12 km, 411 m), Nyon / Changins (17 km, 458 m), La Dôle (24 km, 1670 m), adjusted to the elevation of Gy (476 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Gy:
- Weather Jussy
- Weather Meinier
- Weather Presinge
- Weather Corsier (GE)
- Weather Anières
- Weather Choulex
- Weather Hermance
- Weather Collonge-Bellerive
- Weather Puplinge
- Weather Vandoeuvres
- Weather Cologny
- Weather Thônex
→ Nearby cities · Canton Geneva
Frequently asked questions about weather in Gy
What is the weather in Gy today?
At the top of the page you will find the current temperature, precipitation and wind in Gy, updated in real time.
What is the 15-day forecast for Gy?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Gy.
Will it rain tomorrow in Gy?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Gy.
What is the air quality in Gy?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Gy.
Are there weather alerts for Gy?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Gy located?
Gy sits at around 476 m above sea level in the canton of Geneva. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.
What is the warmest month in Gy?
The warmest month in Gy is July, averaging 20.1 °C (1991–2020 normal). The coldest is January at 2.2 °C.
How much does it rain in Gy per year?
Gy receives about 1007 mm of precipitation a year. The wettest month is December (101 mm), the driest February (64 mm).
When is the best time to visit Gy?
For warmth and sunshine: July (20.1 °C on average, 269 h of sun). The coldest month is January (2.2 °C). Check the 15-day forecast above for your dates.