What is the weather in Bardonnex today?

At the top of the page you will find the current temperature, precipitation and wind in Bardonnex, updated in real time.

What is the 15-day forecast for Bardonnex?

The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Bardonnex.

Will it rain tomorrow in Bardonnex?

Check the 48-hour hourly forecast to see exactly when precipitation is expected in Bardonnex.

What is the air quality in Bardonnex?

The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Bardonnex.

Are there weather alerts for Bardonnex?

Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.

At what altitude is Bardonnex located?

Bardonnex sits at around 468 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 Bardonnex?

The warmest month in Bardonnex is July, averaging 20.2 °C (1991–2020 normal). The coldest is January at 2.2 °C.

How much does it rain in Bardonnex per year?

Bardonnex receives about 977 mm of precipitation a year. The wettest month is October (98 mm), the driest February (61 mm).

When is the best time to visit Bardonnex?

For warmth and sunshine: July (20.2 °C on average, 270 h of sun). The coldest month is January (2.2 °C). Check the 15-day forecast above for your dates.

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Weather in Bardonnex

Geneva, 468 m · continuously updated

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Wind: –
Humidity: –
Rain ahead: –
Sunset: –

Arve: 11.8 °C at Genève, Bout du Monde river temperature · FOEN gauge 4.7 km away · 27.09. 00h

Temperature · last 4 and next 28 hours

Bardonnex weather: the next 24 hours

Updated hourly.

Bardonnex weather hour by hour (48 h)

Bardonnex 15-day forecast

Two-week trend.

Bardonnex weekend weather Rain radar

Sun and golden hours

Sunrise –, golden light until –

Sunset –, golden light from –

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Air quality

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European index, measured continuously.

UV index

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Daily maximum — protection advised from 3.

Freezing level

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Snow settles about 300 m below it.

Around Bardonnex

Neighbouring municipalities, as the crow flies.

Perly-Certoux2 km Confignon3 km Onex3 km Plan-les-Ouates3 km Lancy3 km Troinex3 km Carouge (GE)4 km Bernex4 km

7-day forecast for Bardonnex

Today (Sunday 27 Sep) in Bardonnex: partly cloudy, 15 to 27 °C, precipitation 0.0 mm (0 %), wind up to 13 km/h. Tomorrow: overcast, 16 to 26 °C.

Day	Weather	Min	Max	Precip.	Wind
Today	partly cloudy	15 °C	27 °C	0.0 mm	13 km/h
Tomorrow	overcast	16 °C	26 °C	0.0 mm	11 km/h
Tue 29 Sep	overcast	14 °C	26 °C	0.0 mm	8 km/h
Wed 30 Sep	light rain	16 °C	19 °C	3.0 mm	4 km/h
Thu 1 Oct	showers	15 °C	19 °C	19.8 mm	4 km/h
Fri 2 Oct	overcast	15 °C	21 °C	0.0 mm	11 km/h
Sat 3 Oct	showers	14 °C	22 °C	1.2 mm	4 km/h

Forecast updated on 27.09.2026 at 04:37 (Open-Meteo model, elevation 468 m). The interactive block at the top refreshes hourly and covers 16 days.

No rain expected in Bardonnex today or tomorrow. The 15-minute detail for the next two hours is shown on demand.

Hourly weather in Bardonnex

Sunday 27 Sep in Bardonnex, hour by hour: sunny in the morning, sunny in the afternoon, mostly sunny in the evening. Low 15 °C around 07:00, high 27 °C around 16:00. No rainy hour.

Show the 24-hour table

Time	Weather	Temp.	Wind
00:00	sunny	17 °C	4 km/h
01:00	sunny	17 °C	6 km/h
02:00	sunny	17 °C	5 km/h
03:00	sunny	16 °C	5 km/h
04:00	sunny	16 °C	5 km/h
05:00	sunny	15 °C	7 km/h
06:00	sunny	15 °C	5 km/h
07:00	sunny	15 °C	4 km/h
08:00	sunny	15 °C	2 km/h
09:00	sunny	16 °C	1 km/h
10:00	sunny	18 °C	2 km/h
11:00	sunny	21 °C	2 km/h
12:00	sunny	24 °C	8 km/h
13:00	sunny	25 °C	14 km/h
14:00	sunny	26 °C	14 km/h
15:00	sunny	26 °C	13 km/h
16:00	sunny	27 °C	13 km/h
17:00	partly cloudy	26 °C	12 km/h
18:00	partly cloudy	26 °C	9 km/h
19:00	mostly sunny	23 °C	10 km/h
20:00	partly cloudy	22 °C	11 km/h
21:00	mostly sunny	22 °C	12 km/h
22:00	overcast	21 °C	3 km/h
23:00	partly cloudy	19 °C	5 km/h

Hourly forecast issued 27.09.2026 for Bardonnex (468 m), Swiss local time, Open-Meteo model. The interactive block at the top of the page covers 16 days and refreshes every hour.

Bardonnex weather tomorrow

Tomorrow, Monday 28 Sep, in Bardonnex: overcast, 16 to 26 °C, wind up to 11 km/h. No precipitation expected.

Bardonnex weekend weather

This weekend in Bardonnex: Saturday showers, 14 to 22 °C; Sunday partly cloudy, 15 to 27 °C.

Will it rain in Bardonnex this week?

Yes: 3 days with precipitation are expected in Bardonnex over the next 7 days, 24.0 mm in total. Wettest day: Thursday 1 Oct (19.8 mm).

The best day to go out in Bardonnex

The best day of the next 7 in Bardonnex: Sunday 27 Sep, partly cloudy, up to 27 °C.

The last 7 days in Bardonnex

From 20 Sep to 26 Sep: 18.5 °C on average, 3.0 °C above the September normal (15.5 °C), 0 mm of precipitation (7-day normal: 21 mm). Warmest day: saturday 26 Sep (26 °C); coolest night: wednesday 23 Sep (11 °C).

Day	Min	Max
Sun 20 Sep	15 °C	26 °C
Mon 21 Sep	13 °C	24 °C
Tue 22 Sep	11 °C	23 °C
Wed 23 Sep	11 °C	24 °C
Thu 24 Sep	14 °C	24 °C
Fri 25 Sep	12 °C	24 °C
Sat 26 Sep	13 °C	26 °C

Open-Meteo analyses of the last 7 days (models and assimilated observations), MeteoSwiss 1991–2020 normals. Updated nightly.

Climate of Bardonnex: 1991–2020 normals

In Bardonnex (468 m), the mean annual temperature is 10.8 °C. The warmest month is July (20.2 °C on average) and the coldest January (2.2 °C). About 977 mm of precipitation falls per year, peaking in October (98 mm) with a minimum in February (61 mm). The sun shines for about 1933 hours a year, mostly in July (270 h). On average there are 68 frost days and 17 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 32.7 °C and the absolute minimum −6.9 °C.

10.8 °CMean annual temperature

977 mmPrecipitation per year

1933 hSunshine hours per year

68Frost days per year

63Summer days (≥ 25 °C)

JFMAMJJASOND

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	12.1 °C	−6.9 °C	78	65	19	0
Feb	2.8 °C	14.2 °C	−6.4 °C	61	102	17	0
Mar	6.5 °C	19.0 °C	−3.7 °C	66	167	8	0
Apr	10.2 °C	23.1 °C	−0.7 °C	68	192	1	1
May	14.2 °C	27.4 °C	3.3 °C	81	215	0	4
Jun	18.1 °C	31.0 °C	7.2 °C	84	246	0	14
Jul	20.2 °C	32.7 °C	9.5 °C	82	270	0	21
Aug	19.7 °C	32.2 °C	8.9 °C	83	246	0	18
Sep	15.5 °C	27.2 °C	5.3 °C	89	190	0	6
Oct	11.2 °C	22.0 °C	1.2 °C	98	122	1	0
Nov	6.1 °C	16.7 °C	−3.2 °C	92	68	6	0
Dec	2.9 °C	12.6 °C	−6.0 °C	96	50	15	0
Year	10.8 °C	32.7 °C	−6.9 °C	977	1933	68	63

Source: MeteoSwiss open data (1991–2020 normals) — stations Genève / Cointrin (11 km, 411 m), Nyon / Changins (29 km, 458 m), La Dôle (31 km, 1670 m), adjusted to the elevation of Bardonnex (468 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.