Live Weather & Forecast
Weather in Altstätten SG
Sankt Gallen, Switzerland · Real-time conditions & 3-day outlook
9°C
Feels like 8°C
48°F / Feels 47°F
Partly Cloudy
Altstätten SG, Sankt Gallen
🌙 Nighttime
Updated: 2026-04-16 00:45
Humidity
85%
Wind
4.7 km/h WSW
Wind Gust
8.1 km/h
Pressure
1022 mb
Visibility
10 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
42%
Dew Point
6.3°C
Wind Degree
248°
Air Quality Index
US EPA: Good
UK DEFRA: Low (2)
CO
199.9 μg/m³
NO₂
8.8 μg/m³
O₃
67 μg/m³
SO₂
1.1 μg/m³
PM 2.5
14.1 μg/m³
PM 10
21.8 μg/m³
Today's Hourly Forecast
24-hour breakdown for Altstätten SG, Sankt Gallen
12 AM
9°
Partly Cloudy
1 AM
9°
Partly Cloudy
2 AM
8°
Partly Cloudy
3 AM
8°
Partly Cloudy
4 AM
7°
Partly Cloudy
5 AM
7°
Partly Cloudy
6 AM
7°
Partly Cloudy
7 AM
7°
Partly Cloudy
8 AM
9°
Patchy rain nearby
9 AM
10°
Overcast
10 AM
11°
Cloudy
11 AM
12°
Partly Cloudy
12 PM
13°
Patchy rain nearby
1 PM
14°
Patchy rain nearby
2 PM
14°
Sunny
3 PM
15°
Sunny
4 PM
15°
Sunny
5 PM
15°
Sunny
6 PM
14°
Sunny
7 PM
13°
Sunny
8 PM
11°
Sunny
9 PM
10°
Clear
10 PM
9°
Clear
11 PM
8°
Clear
3-Day Forecast
Daily overview for Altstätten SG, Sankt Gallen
Today
Partly Cloudy
15°
/
7°
🌧️ 0% chance of rain
💧 Avg. humidity: 76%
💨 Max wind: 6.5 km/h
🌧️ Total precip: 0.04 mm
☀️ UV Index: 1.3
🌅 Sunrise: 06:32 AM
🌇 Sunset: 08:13 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Sunny
15°
/
5°
🌧️ 0% chance of rain
💧 Avg. humidity: 78%
💨 Max wind: 6.1 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.2
🌅 Sunrise: 06:30 AM
🌇 Sunset: 08:14 PM
🌙 New Moon
🌑 Moon: 0% lit
Sat, Apr 18
Sunny
17°
/
7°
🌧️ 0% chance of rain
💧 Avg. humidity: 75%
💨 Max wind: 6.1 km/h
🌧️ Total precip: 0.01 mm
☀️ UV Index: 1.5
🌅 Sunrise: 06:28 AM
🌇 Sunset: 08:16 PM
🌙 Waxing Crescent
🌑 Moon: 1% lit
Best Time to Visit Altstätten SG
Plan your trip to Altstätten SG, Switzerland around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Altstätten SG?
Current conditions in Altstätten SG: Partly Cloudy, temperature 9°C, humidity 85%.
What is the best time to visit Altstätten SG?
The best time to visit Altstätten SG is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Altstätten SG?
Altstätten SG is located at approximately 47.4° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Altstätten SG?
The wettest period in Altstätten SG is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Altstätten SG?
For visits to Altstätten SG during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Altstätten SG in?
Altstätten SG is located in Switzerland, in the state of Sankt Gallen.
What are the public holidays in Altstätten SG in 2026?
View the 2026 public holidays for Altstätten SG on our Holidays page.
What are the GPS coordinates used for the weather forecast in Altstätten SG?
The weather forecast for Altstätten SG uses coordinates 47.3782, 9.5414.