What is the weather in Onsernone today?

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

What is the 15-day forecast for Onsernone?

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

Will it rain tomorrow in Onsernone?

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

What is the air quality in Onsernone?

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

Are there weather alerts for Onsernone?

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

At what altitude is Onsernone located?

Onsernone sits at around 674 m above sea level in the canton of Ticino. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.

What is the warmest month in Onsernone?

The warmest month in Onsernone is July, averaging 20.0 °C (1991–2020 normal). The coldest is January at 2.7 °C.

How much does it rain in Onsernone per year?

Onsernone receives about 1636 mm of precipitation a year. The wettest month is October (189 mm), the driest February (55 mm).

When is the best time to visit Onsernone?

For warmth and sunshine: July (20.0 °C on average, — h of sun). The coldest month is January (2.7 °C). Check the 15-day forecast above for your dates.

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Home › Ticino › Onsernone

Weather in Onsernone

Ticino, 674 m · continuously updated

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

Temperature · last 4 and next 28 hours

Onsernone weather: the next 24 hours

Updated hourly.

Onsernone weather hour by hour (48 h)

Onsernone 15-day forecast

Two-week trend.

Onsernone 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 Onsernone

Neighbouring municipalities, as the crow flies.

Centovalli5 km Maggia9 km Terre di Pedemonte9 km Brissago9 km Losone9 km Ronco sopra Ascona9 km Avegno Gordevio10 km Ascona11 km

7-day forecast for Onsernone

Today (Sunday 27 Sep) in Onsernone: partly cloudy, 12 to 21 °C, precipitation 0.0 mm (0 %), wind up to 9 km/h. Tomorrow: partly cloudy, 14 to 22 °C.

Day	Weather	Min	Max	Precip.	Wind
Today	partly cloudy	12 °C	21 °C	0.0 mm	9 km/h
Tomorrow	partly cloudy	14 °C	22 °C	0.0 mm	8 km/h
Tue 29 Sep	overcast	16 °C	21 °C	0.0 mm	7 km/h
Wed 30 Sep	overcast	17 °C	18 °C	0.3 mm	6 km/h
Thu 1 Oct	light rain	14 °C	17 °C	2.7 mm	6 km/h
Fri 2 Oct	overcast	14 °C	19 °C	0.0 mm	8 km/h
Sat 3 Oct	overcast	14 °C	19 °C	0.0 mm	8 km/h

Forecast updated on 27.09.2026 at 04:37 (Open-Meteo model, elevation 674 m). The interactive block at the top refreshes hourly and covers 16 days.

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

Hourly weather in Onsernone

Sunday 27 Sep in Onsernone, hour by hour: sunny in the morning, mostly sunny in the afternoon, mostly sunny in the evening. Low 12 °C around 07:00, high 21 °C around 15:00. No rainy hour.

Show the 24-hour table

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

Hourly forecast issued 27.09.2026 for Onsernone (674 m), Swiss local time, Open-Meteo model. The interactive block at the top of the page covers 16 days and refreshes every hour.

Onsernone weather tomorrow

Tomorrow, Monday 28 Sep, in Onsernone: partly cloudy, 14 to 22 °C, wind up to 8 km/h. No precipitation expected.

Onsernone weekend weather

This weekend in Onsernone: Saturday overcast, 14 to 19 °C; Sunday partly cloudy, 12 to 21 °C.

Will it rain in Onsernone this week?

Yes: 1 day with precipitation is expected in Onsernone over the next 7 days, 3.0 mm in total. Wettest day: Thursday 1 Oct (2.7 mm).

The best day to go out in Onsernone

The best day of the next 7 in Onsernone: Monday 28 Sep, partly cloudy, up to 22 °C.

The last 7 days in Onsernone

From 20 Sep to 26 Sep: 16.2 °C on average, 0 mm of precipitation. Warmest day: monday 21 Sep (24 °C); coolest night: thursday 24 Sep (10 °C).

Day	Min	Max
Sun 20 Sep	12 °C	23 °C
Mon 21 Sep	13 °C	24 °C
Tue 22 Sep	11 °C	21 °C
Wed 23 Sep	12 °C	19 °C
Thu 24 Sep	10 °C	22 °C
Fri 25 Sep	10 °C	19 °C
Sat 26 Sep	12 °C	19 °C

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

Climate of Onsernone: 1991–2020 normals

In Onsernone (674 m), the mean annual temperature is 10.9 °C. The warmest month is July (20.0 °C on average) and the coldest January (2.7 °C). About 1636 mm of precipitation falls per year, peaking in October (189 mm) with a minimum in February (55 mm). The mean monthly maximum reaches 28.8 °C and the absolute minimum −5.5 °C.

10.9 °CMean annual temperature

1636 mmPrecipitation per year

JFMAMJJASOND

Mean monthly precipitation (mm) — bar height relative to the wettest month.

Month	Mean T	Abs. max	Abs. min	Precip. (mm)
Jan	2.7 °C	13.5 °C	−5.5 °C	58
Feb	3.5 °C	14.6 °C	−4.9 °C	55
Mar	6.9 °C	18.7 °C	−2.6 °C	80
Apr	10.0 °C	21.5 °C	0.7 °C	142
May	14.0 °C	24.9 °C	5.0 °C	174
Jun	17.9 °C	28.0 °C	8.8 °C	169
Jul	20.0 °C	28.8 °C	11.3 °C	145
Aug	19.6 °C	28.7 °C	11.0 °C	188
Sep	15.5 °C	24.7 °C	7.2 °C	182
Oct	11.2 °C	21.2 °C	2.8 °C	189
Nov	6.6 °C	16.3 °C	−1.5 °C	178
Dec	3.4 °C	13.9 °C	−4.8 °C	74
Year	10.9 °C	28.8 °C	−5.5 °C	1636

Source: MeteoSwiss open data (1991–2020 normals) — stations Cimetta (12 km, 1661 m), Locarno / Monti (12 km, 367 m), Magadino / Cadenazzo (23 km, 203 m), adjusted to the elevation of Onsernone (674 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.