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Weather in Chiasso

Ticino, 239 m · continuously updated

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Wind
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Humidity
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Rain ahead
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Sunset
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Temperature · last 4 and next 28 hours

Chiasso weather: the next 24 hours

Updated hourly.

Chiasso weather hour by hour (48 h)

Chiasso 15-day forecast

Two-week trend.

Chiasso weekend weatherRain 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 Chiasso

Neighbouring municipalities, as the crow flies.

7-day forecast for Chiasso

Today (Sunday 27 Sep) in Chiasso: mostly sunny, 12 to 24 °C, precipitation 0.0 mm (0 %), wind up to 3 km/h. Tomorrow: mostly sunny, 13 to 25 °C.

DayWeatherMinMaxPrecip.Wind
Todaymostly sunny12 °C24 °C0.0 mm3 km/h
Tomorrowmostly sunny13 °C25 °C0.0 mm6 km/h
Tue 29 Sepovercast15 °C23 °C0.1 mm6 km/h
Wed 30 Sepovercast16 °C22 °C0.3 mm6 km/h
Thu 1 Octlight rain14 °C17 °C3.8 mm4 km/h
Fri 2 Octovercast14 °C21 °C0.0 mm5 km/h
Sat 3 Octfog13 °C22 °C0.0 mm7 km/h

Forecast updated on 27.09.2026 at 04:37 (Open-Meteo model, elevation 239 m). The interactive block at the top refreshes hourly and covers 16 days.

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

Hourly weather in Chiasso

Sunday 27 Sep in Chiasso, hour by hour: sunny in the morning, sunny in the afternoon, sunny in the evening. Low 12 °C around 07:00, high 24 °C around 16:00. No rainy hour.

Show the 24-hour table
TimeWeatherTemp.Precip.Wind
00:00sunny13 °C0.0 mm2 km/h
01:00sunny13 °C0.0 mm3 km/h
02:00sunny12 °C0.0 mm2 km/h
03:00sunny13 °C0.0 mm2 km/h
04:00sunny13 °C0.0 mm3 km/h
05:00sunny12 °C0.0 mm2 km/h
06:00sunny12 °C0.0 mm2 km/h
07:00sunny12 °C0.0 mm2 km/h
08:00sunny13 °C0.0 mm1 km/h
09:00sunny15 °C0.0 mm2 km/h
10:00sunny18 °C0.0 mm0 km/h
11:00sunny20 °C0.0 mm0 km/h
12:00sunny22 °C0.0 mm2 km/h
13:00sunny23 °C0.0 mm2 km/h
14:00mostly sunny24 °C0.0 mm3 km/h
15:00sunny24 °C0.0 mm3 km/h
16:00sunny24 °C0.0 mm3 km/h
17:00sunny24 °C0.0 mm2 km/h
18:00sunny23 °C0.0 mm2 km/h
19:00sunny21 °C0.0 mm3 km/h
20:00sunny18 °C0.0 mm0 km/h
21:00sunny16 °C0.0 mm0 km/h
22:00sunny15 °C0.0 mm2 km/h
23:00sunny14 °C0.0 mm2 km/h

Hourly forecast issued 27.09.2026 for Chiasso (239 m), Swiss local time, Open-Meteo model. The interactive block at the top of the page covers 16 days and refreshes every hour.

Chiasso weather tomorrow

Tomorrow, Monday 28 Sep, in Chiasso: mostly sunny, 13 to 25 °C, wind up to 6 km/h. No precipitation expected.

Chiasso weekend weather

This weekend in Chiasso: Saturday fog, 13 to 22 °C; Sunday mostly sunny, 12 to 24 °C.

Will it rain in Chiasso this week?

Yes: 1 day with precipitation is expected in Chiasso over the next 7 days, 4.2 mm in total. Wettest day: Thursday 1 Oct (3.8 mm).

The best day to go out in Chiasso

The best day of the next 7 in Chiasso: Monday 28 Sep, mostly sunny, up to 25 °C.

Among the 64 municipalities of canton Ticino covered by the MeteoSwiss 1991-2020 normals, Chiasso ranks 54 for annual precipitation (1348 mm) and 54 for sunshine (2032 hours per year). July's hottest day averages 31.6 °C; January's coldest night drops to -5.6 °C.

The last 7 days in Chiasso

From 20 Sep to 26 Sep: 18.4 °C on average, 1.1 °C above the September normal (17.3 °C), 0 mm of precipitation (7-day normal: 30 mm). Warmest day: monday 21 Sep (28 °C); coolest night: thursday 24 Sep (10 °C).

DayMinMaxRain
Sun 20 Sep14 °C26 °C0.0 mm
Mon 21 Sep16 °C28 °C0.0 mm
Tue 22 Sep11 °C24 °C0.0 mm
Wed 23 Sep13 °C23 °C0.0 mm
Thu 24 Sep10 °C23 °C0.0 mm
Fri 25 Sep13 °C22 °C0.0 mm
Sat 26 Sep13 °C23 °C0.0 mm

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

Climate of Chiasso: 1991–2020 normals

In Chiasso (239 m), the mean annual temperature is 12.6 °C. The warmest month is July (22.2 °C on average) and the coldest January (3.5 °C). About 1348 mm of precipitation falls per year, peaking in November (169 mm) with a minimum in January (59 mm). The sun shines for about 2032 hours a year, mostly in July (263 h). On average there are 88 frost days and 18 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 31.6 °C and the absolute minimum −5.6 °C.

12.6 °CMean annual temperature
1348 mmPrecipitation per year
2032 hSunshine hours per year
88Frost days per year
82Summer 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
Jan3.5 °C15.4 °C−5.6 °C59116230
Feb4.6 °C16.8 °C−5.0 °C60138200
Mar8.3 °C21.3 °C−2.6 °C73182110
Apr11.9 °C23.5 °C0.9 °C12517631
May16.1 °C27.3 °C5.9 °C14819806
Jun20.1 °C30.8 °C10.1 °C133226018
Jul22.2 °C31.6 °C12.3 °C109263026
Aug21.7 °C31.2 °C12.0 °C124239025
Sep17.3 °C26.9 °C7.8 °C13017307
Oct13.1 °C23.4 °C3.3 °C14012610
Nov8.2 °C18.4 °C−1.3 °C1699790
Dec4.3 °C15.5 °C−5.3 °C7898210
Year12.6 °C31.6 °C−5.6 °C134820328882

Source: MeteoSwiss open data (1991–2020 normals) — stations Stabio (7 km, 351 m), Monte Generoso (10 km, 1600 m), Lugano (20 km, 273 m), adjusted to the elevation of Chiasso (239 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.