Climate averages 1991–2020
Cergy-Pontoise weather
in May.
A mild, moderately wet month: the 5th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Cergy-Pontoise: daytime highs average 18.2°C and nights cool to about 9.5°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 64 mm of rain on roughly 11 days, which makes May a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 16 min on an average May day.
The nearest other city in this atlas is Argenteuil (16 km away). In May its highs average 18.5°C, about as warm as Cergy-Pontoise, with 64 mm of rain.
Among the 57 cities listed in France, Cergy-Pontoise ranks joint 38th of 57 for the warmest May highs and joint 25th of 57 for the driest May (rainfall, lowest first). The mean May high of those 57 cities is 18.9°C; Cergy-Pontoise is 0.7°C cooler than that mean.
From May to June, average highs rise by 3.2°C to 21.4°C, and monthly rainfall falls from 64 mm to 57 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Cergy-Pontoise climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.0°C2.1°C | 2.1°C | 55 | 11.3 | 8.79 h |
| February | 8.2°C1.9°C | 1.9°C | 48 | 9.9 | 10.110 h |
| March | 11.5°C3.7°C | 3.7°C | 52 | 10.5 | 11.912 h |
| April | 14.8°C5.9°C | 5.9°C | 51 | 11.0 | 13.714 h |
| May, selected | 18.2°C9.5°C | 9.5°C | 64 | 11.3 | 15.315 h |
| June | 21.4°C12.7°C | 12.7°C | 57 | 10.1 | 16.116 h |
| July | 23.6°C14.8°C | 14.8°C | 51 | 9.1 | 15.816 h |
| August | 23.8°C14.8°C | 14.8°C | 58 | 9.2 | 14.414 h |
| September | 20.3°C12.0°C | 12.0°C | 44 | 8.5 | 12.713 h |
| October | 15.8°C9.2°C | 9.2°C | 62 | 11.1 | 10.811 h |
| November | 10.6°C5.4°C | 5.4°C | 60 | 11.3 | 9.29 h |
| December | 7.4°C2.7°C | 2.7°C | 70 | 12.6 | 8.38 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Argenteuil in MayFrance · 16 kmHigh 18.5°C · Low 9.7°C · 64 mm rain
- Boulogne-Billancourt in MayFrance · 26 kmHigh 18.6°C · Low 9.9°C · 66 mm rain
- Versailles in MayFrance · 26 kmHigh 17.9°C · Low 9.2°C · 66 mm rain
- Paris 15 Vaugirard in MayFrance · 27 kmHigh 18.6°C · Low 9.7°C · 66 mm rain
- Paris in MayFrance · 29 kmHigh 18.6°C · Low 9.5°C · 66 mm rain
- Saint-Quentin-en-Yvelines in MayFrance · 30 kmHigh 17.7°C · Low 8.9°C · 67 mm rain
- Paris 20 Ménilmontant in MayFrance · 30 kmHigh 18.2°C · Low 9.2°C · 65 mm rain
- Paris 13 Gobelins in MayFrance · 31 kmHigh 18.5°C · Low 9.5°C · 66 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Cergy-Pontoise) is explained once on the Cergy-Pontoise year overview and on the Sources, method and limits page.