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Weather Blenio

7-day forecast for Blenio

Today (Thursday 20 Aug) in Blenio: thunderstorms with hail, 16 to 21 °C, precipitation 41.0 mm (100 %), wind up to 8 km/h. Tomorrow: thunderstorms, 12 to 18 °C.

DayWeatherMinMaxPrecip.Wind
Todaythunderstorms with hail16 °C21 °C41.0 mm8 km/h
Tomorrowthunderstorms12 °C18 °C12.8 mm6 km/h
Sat 22 Augovercast10 °C23 °C0.0 mm11 km/h
Sun 23 Augovercast14 °C22 °C0.0 mm10 km/h
Mon 24 Augovercast16 °C22 °C0.0 mm10 km/h
Tue 25 Augshowers16 °C21 °C8.2 mm6 km/h
Wed 26 Augfog17 °C25 °C0.0 mm11 km/h

Forecast updated on 20.08.2026 at 15:41 (Open-Meteo model, elevation 800 m). The interactive block at the top refreshes hourly and covers 16 days.

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About Blenio

Blenio is a Swiss municipality located in the canton of Ticino (TI), at 46.495° latitude and 8.954° longitude. The municipality is part of the south of the Alps (Ticino), insubric near-Mediterranean climate, mild and sunny. Also known as Blenio, Blenio benefits from precise weather monitoring with hourly and 15-day forecasts.

800m Elevation
Foothills Zone
Snow & altitude climate In the foothills snow lies for a few weeks each winter and inversion fog is common in the valley bottoms.

Climate of Blenio

The climate in Blenio is characteristic of the south of the Alps (Ticino), insubric near-Mediterranean climate, mild and sunny. 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 Blenio and neighboring municipalities.

On this page you will find the detailed weather forecast for Blenio: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.

Climate of Blenio: 1991–2020 normals

In Blenio (800 m), the mean annual temperature is 9.4 °C. The warmest month is July (18.2 °C on average) and the coldest January (1.1 °C). About 1358 mm of precipitation falls per year, peaking in August (170 mm) with a minimum in February (47 mm). The sun shines for about 1449 hours a year, mostly in July (173 h). On average there are 71 frost days and 8 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 29.2 °C and the absolute minimum −7.5 °C.

9.4 °CMean annual temperature
1358 mmPrecipitation per year
1449 hSunshine hours per year
71Frost days per year
59Summer days (≥ 25 °C)
JFMAMJJASOND

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

MonthMean TAbs. maxAbs. minPrecip. (mm)Sunshine (h)Frost daysSummer days
Jan1.1 °C12.8 °C−7.5 °C6188220
Feb2.0 °C13.9 °C−7.0 °C47100160
Mar5.7 °C18.6 °C−4.7 °C6213370
Apr9.0 °C21.2 °C−1.6 °C11013510
May12.6 °C24.9 °C2.7 °C13713404
Jun16.4 °C28.3 °C6.5 °C138154013
Jul18.2 °C29.2 °C8.6 °C132173021
Aug17.6 °C28.6 °C8.0 °C170157017
Sep13.8 °C24.6 °C4.5 °C13512803
Oct9.6 °C20.4 °C0.5 °C1449700
Nov5.0 °C15.9 °C−3.6 °C1497470
Dec1.8 °C12.9 °C−6.9 °C7476170
Year9.4 °C29.2 °C−7.5 °C135814497159

Source: MeteoSwiss open data (1991–2020 normals) — stations Acquarossa / Comprovasco (4 km, 575 m), Matro (10 km, 2171 m), S. Bernardino (18 km, 1639 m), adjusted to the elevation of Blenio (800 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.

Nearby cities

Check the weather of cities near Blenio:

Frequently asked questions about weather in Blenio

What is the weather in Blenio today?

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

What is the 15-day forecast for Blenio?

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

Will it rain tomorrow in Blenio?

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

What is the air quality in Blenio?

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

Are there weather alerts for Blenio?

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

At what altitude is Blenio located?

Blenio sits at around 800 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 Blenio?

The warmest month in Blenio is July, averaging 18.2 °C (1991–2020 normal). The coldest is January at 1.1 °C.

How much does it rain in Blenio per year?

Blenio receives about 1358 mm of precipitation a year. The wettest month is August (170 mm), the driest February (47 mm).

When is the best time to visit Blenio?

For warmth and sunshine: July (18.2 °C on average, 173 h of sun). The coldest month is January (1.1 °C). Check the 15-day forecast above for your dates.