Weather in Cergy-Pontoise for December 2025
So far, December 2025 in Cergy-Pontoise is slightly warmer than the historical average by 1.4 °C.
The forecast for the next days in Cergy-Pontoise predicts temperatures to be around 9 °C, close to the historical average.
In general, the average temperature in Cergy-Pontoise at the beginning of December is 8.6 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 8.4 °C by the end of December.
Cergy-Pontoise in December brings notable rainfall, with an average of 18 rainy days and a total precipitation of 65.6 mm.
Is December a good time to visit Cergy-Pontoise? check out the best time to travel to Cergy-Pontoise page.
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Cergy-Pontoise Weather December
Temperatures trend during December in Cergy-Pontoise
December weather in Cergy-Pontoise day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Partly cloudy | 8° /2° | 0.3 mm | 3 | |
| 2 Dec. |  Cloudy | 8° /3° | 0.6 mm | 2 | |
| 3 Dec. |  Overcast | 7° /2° | 0.1 mm | 2 | |
| 4 Dec. |  Light rain | 8° /3° | 4.5 mm | 2 | |
| 5 Dec. | Light drizzle | 8° /3° | 3.2 mm | 2 | |
| 6 Dec. |  Patchy rain possible | 10° /5° | 1.5 mm | 3 | |
| 7 Dec. | Light drizzle | 11° /5° | 6.4 mm | 3 | |
| 8 Dec. |  Mist | 11° /7° | 1.2 mm | 3 | |
| 9 Dec. | Light rain shower | 11° /6° | 6.4 mm | 3 | |
| 10 Dec. | Light rain | 11° /6° | 2.4 mm | 3 | |
| 11 Dec. | Partly cloudy | 10° /5° | 0.6 mm | 3 | |
| 12 Dec. | Light rain shower | 10° /6° | 2.1 mm | 3 | |
| 13 Dec. | Light rain shower | 9° /4° | 2.2 mm | 3 | |
| 14 Dec. | Overcast | 8° /4° | 0.7 mm | 3 | |
| 15 Dec. |  Sunny | 11° /7° | 0 mm | 0.1 | |
| 16 Dec. | Patchy rain possible | 13° /9° | 0.1 mm | 0.1 | |
| 17 Dec. | Patchy rain possible | 10° /7° | 0.1 mm | 0.1 | |
| 18 Dec. | Sunny | 11° /5° | 0 mm | 0.1 | |
| 19 Dec. | Patchy rain possible | 10° /9° | 3.9 mm | 0.1 | |
| 20 Dec. | Patchy rain possible | 10° /8° | 1.5 mm | 2 | |
| 21 Dec. | Patchy rain possible | 9° /8° | 1.6 mm | 2 | |
| 22 Dec. | Patchy rain possible | 9° /7° | 1.5 mm | 2 | |
| 23 Dec. | Overcast | 9° /6° | 0.1 mm | 2 | |
| 24 Dec. | Overcast | 11° /7° | 0 mm | 2 | |
| 25 Dec. | Sunny | 9° /6° | 0 mm | 3 | |
| 26 Dec. | Sunny | 8° /3° | 0 mm | 3 | |
| 27 Dec. | Sunny | 5° /1° | 0 mm | 2 | |
| 28 Dec. | Sunny | 5° /0° | 0 mm | 2 | |
| 29 Dec. | Patchy rain possible | 9° /3° | 0.8 mm | 3 | |
| 30 Dec. |  Moderate or heavy rain shower | 11° /3° | 4 mm | 3 | |
| 31 Dec. | Overcast | 12° /7° | 0.2 mm | 4 | |
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Cergy-Pontoise weather in December vs November vs January
| November | December | January | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 11°/6° | 9°/5° | 7°/3° |
| Rainfall | 70 mm | 66 mm | 91 mm |
| Snowfall | 1 cm | 0 cm | 3 cm |
| Wind | 20.7 km/h | 20.5 km/h | 20.5 km/h |
| Humidity | 77% | 79% | 80% |
| Rainy days | 16 days | 18 days | 20 days |
| Snow days | 3 days | 0 days | 2 days |
| Dry days | 11 days | 13 days | 9 days |
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Cergy-Pontoise in December - FAQ
What to pack to Cergy-Pontoise in December?
As you prepare for your trip to Cergy-Pontoise in December, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Cergy-Pontoise, during December, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
December rainfall patterns in Cergy-Pontoise
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Where is Cergy-Pontoise?Get accurate weather forecasts for Cergy-Pontoise, located at latitude 49.039 and longitude 2.078. Stay updated with localized weather information tailored for Cergy-Pontoise.