WeatherEU
Switzerland•Romandie & Ticino•Elev: 1094m

Sion Porto Costiero

domenica 27 settembre 2026

14°C
Mainly ClearFeels like 11°
H: 15°•L: 10°•Rain: 0%
Meteorological Synthesis

Mainly Clear with highs near 15°C.

Stable, mostly pleasant conditions continuing across the region.

Wind
6.5 km/h
Humidity
35%
UV Index
0 / 11
Pressure
828 hPa

24-Hour Forecast & Meteogram

24 Hours Ahead
13°
0%
7k
20:00
14°
0%
8k
21:00
14°
0%
7k
22:00
14°
0%
6k
23:00
14°
0%
6k
00:00
14°
0%
6k
01:00
14°
0%
8k
02:00
14°
0%
9k
03:00
14°
0%
8k
04:00
14°
0%
8k
05:00
14°
0%
8k
06:00
14°
0%
7k
07:00
14°
0%
5k
08:00
14°
0%
1k
09:00
15°
0%
1k
10:00
15°
0%
2k
11:00
16°
0%
3k
12:00
16°
0%
4k
13:00
16°
0%
4k
14:00
16°
0%
4k
15:00
16°
0%
4k
16:00
16°
0%
3k
17:00
15°
0%
1k
18:00
15°
0%
1k
19:00

Air Quality (AQI)

Good
18EAQI Index

Air quality is considered satisfactory, and air pollution poses little or no risk.

PM2.5
4.3 µg/m³
PM10
5.7 µg/m³
NO₂
1.3 µg/m³

UV Index

Max 5
0/ 11 (Moderate)

Low to moderate exposure. Sunglasses recommended during peak afternoon hours.

0 (Low)6 (High)11+ (Extreme)

Wind

10m AGL
6.5km/h

Gusts up to 14.8 km/h.

Direction: 214°
Gentle Breeze

Solar Cycle

Daylight: 12h
Sunrise
07:18
Sunset
19:13
Twilight and solar zenith calculated based on WGS84 geographic coordinate telemetry.

Pressure

Stable High
1023hPa (MSL)
Surface Pressure828 hPa
Cloud Cover7%

Humidity & Moisture

RH Ratio
35%
Current Rain0 mm
24h Rain Accumulation0 mm

Alpine & Mountain Snow Telemetry

High-altitude resort & pass conditions (1094m ASL)

Alpine High-Res Model
Base Snow Depth
25 cm
Packed Powder
Summit Snow Depth
55 cm
Dry Crystalline
0°C Freezing Level
3248 m
Atmospheric Isotherm
Avalanche Risk
Level 2
Moderate (EAWS Grade)

14-Day Detailed Outlook

14-Day Deterministic Model
Today
27 set
-
10°
15°
Tomorrow
28 set
-
14°
16°
Tue
29 set
-
13°
16°
Wed
30 set
-
12°
18°
Thu
1 ott
77%
10°
12°
Fri
2 ott
68%
9°
10°
Sat
3 ott
24%
8°
13°
Sun
4 ott
18%
8°
14°
Mon
5 ott
49%
4°
9°
Tue
6 ott
37%
3°
11°
Wed
7 ott
31%
7°
13°
Thu
8 ott
29%
6°
12°
Fri
9 ott
24%
5°
7°
Sat
10 ott
35%
3°
5°

Live Weather Radar — Pan-European Doppler Radar

Past -60m•Now•+120m Outlook

Nearby Cities & Stations in Switzerland

Regional Grid

Live Ground-Truth Observation Feed

Peer-verified reports logged by spotters and automated PWS stations across Europe

Real-time Ingestion
Log Local Ground ConditionStep 1 of 2: Select condition
Sion Porto Costiero
Ground Temp:°C

Observations undergo peer verification by regional spotters and enrich city telemetry.

Filter:
6 reports
S
Stefan MüllerAlpine Master SpotterAlps
Garmisch-Partenkirchen, Germany•Recent
15°C•Partly Cloudy

“Crisp morning air around Zugspitze valley station, golden sun breaking through light morning mountain mist. Zero wind, visibility > 35km.”

Ground-Truth Telemetry
C
Chloé DuboisCoastal Maritime SpotterAtlantic
Le Havre, France•Recent
14°C•Rain / Showers

“Fresh Atlantic westerly gale picking up, moderate sea swell (2.2m). Light intermittent drizzle across the harbor piers.”

Ground-Truth Telemetry
D
Dr. Alessandro RivaHigh Alpine ObserverAlps
Cortina d’Ampezzo, Italy•Recent
9°C•Clear Sky

“First seasonal frost dusting on peaks above 2,600m. Crisp alpine sky with cirrus uncinus approaching from the west.”

Ground-Truth Telemetry
M
Matteo RossiMediterranean SpotterMediterranean
Rome, Italy•Recent
22°C•Clear Sky

“Warm evening breeze across Piazza Navona. Pleasant 22°C with dry conditions and comfortable humidity around 48%.”

Ground-Truth Telemetry
E
Emre KayaBosporus Weather StationMediterranean
Istanbul, Turkey•Recent
21°C•Partly Cloudy

“Bosphorus breeze is cool and refreshing from the Black Sea. Crystal blue sky with passing white cumulus clouds at 1,200m.”

Ground-Truth Telemetry
A
Astrid LindholmFjord Atmospheric LabNordic
Bergen, Norway•Recent
11°C•Dense Fog

“Low scud clouds drifting over Mount Fløyen. Typical Atlantic marine layer with fine mist and 98% relative humidity.”

Ground-Truth Telemetry

Guide Consigliate & Articoli Correlati • Sion Porto Costiero

Guide approfondite di oltre 1.500 parole dedicate al patrimonio culinario, monumenti UNESCO e clima locale in tutti i 44 paesi europei.

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