Live Weather & Forecast
Weather in Poissy
Yvelines, France · Real-time conditions & 3-day outlook
13°C
Feels like 13°C
56°F / Feels 55°F
Partly cloudy
Poissy, Yvelines
🌞 Daytime
Updated: 2026-04-16 10:45
Humidity
77%
Wind
9 km/h WSW
Wind Gust
10.4 km/h
Pressure
1023 mb
Visibility
10 km
UV Index
1.5
(Low)
Precipitation
0 mm
Cloud Cover
75%
Dew Point
7°C
Wind Degree
239°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
168.9 μg/m³
NO₂
13.2 μg/m³
O₃
37 μg/m³
SO₂
1.3 μg/m³
PM 2.5
9.7 μg/m³
PM 10
13.8 μg/m³
Today's Hourly Forecast
24-hour breakdown for Poissy, Yvelines
12 AM
12°
Cloudy
1 AM
11°
Partly Cloudy
2 AM
11°
Partly Cloudy
3 AM
10°
Partly Cloudy
4 AM
9°
Partly Cloudy
5 AM
9°
Partly Cloudy
6 AM
8°
Clear
7 AM
8°
Partly Cloudy
8 AM
9°
Partly Cloudy
9 AM
10°
Sunny
10 AM
13°
Partly cloudy
11 AM
14°
Sunny
12 PM
15°
Sunny
1 PM
17°
Partly Cloudy
2 PM
18°
Partly Cloudy
3 PM
18°
Partly Cloudy
4 PM
19°
Cloudy
5 PM
18°
Cloudy
6 PM
18°
Cloudy
7 PM
17°
Partly Cloudy
8 PM
16°
Partly Cloudy
9 PM
15°
Partly Cloudy
10 PM
14°
Partly Cloudy
11 PM
13°
Partly Cloudy
3-Day Forecast
Daily overview for Poissy, Yvelines
Today
Partly Cloudy
19°
/
8°
🌧️ 0% chance of rain
💧 Avg. humidity: 69%
💨 Max wind: 11.5 km/h
🌧️ Total precip: 0.01 mm
☀️ UV Index: 1.3
🌅 Sunrise: 06:59 AM
🌇 Sunset: 08:45 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Partly Cloudy
20°
/
10°
🌧️ 0% chance of rain
💧 Avg. humidity: 60%
💨 Max wind: 9.7 km/h
🌧️ Total precip: 0.06 mm
☀️ UV Index: 1
🌅 Sunrise: 06:57 AM
🌇 Sunset: 08:46 PM
🌙 New Moon
🌑 Moon: 0% lit
Sat, Apr 18
Patchy rain nearby
17°
/
10°
🌧️ 75% chance of rain
💧 Avg. humidity: 68%
💨 Max wind: 18.7 km/h
🌧️ Total precip: 0.53 mm
☀️ UV Index: 1
🌅 Sunrise: 06:55 AM
🌇 Sunset: 08:48 PM
🌙 Waxing Crescent
🌑 Moon: 1% lit
Best Time to Visit Poissy
Plan your trip to Poissy, France 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 Poissy?
Current conditions in Poissy: Partly cloudy, temperature 13°C, humidity 77%.
What is the best time to visit Poissy?
The best time to visit Poissy is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Poissy?
Poissy is located at approximately 48.9° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Poissy?
The wettest period in Poissy is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Poissy?
For visits to Poissy during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What are the public holidays in Poissy in 2026?
View the 2026 public holidays for Poissy on our Holidays page.
What are the GPS coordinates used for the weather forecast in Poissy?
The weather forecast for Poissy uses coordinates 48.9274, 2.0428.