Climate averages 1991–2020

Saint-Quentin-en-Yvelines weather
in January.

A cold, moderately wet month: the coolest and the 5th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 6.5°C Daytime mean, January
Average low 1.5°C Night-time mean, January
Rainfall 53 mm 11 days with ≥1 mm
Daylight 9 h Sunrise to sunset, per day
Every month in Saint-Quentin-en-Yvelines · average highYear overview

January is a cold month in Saint-Quentin-en-Yvelines: daytime highs average 6.5°C and nights cool to about 1.5°C. By daytime temperature it is the coolest month of the year.

Expect about 53 mm of rain on roughly 11 days, which makes January a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 8 h 46 min on an average January day.

The nearest other city in this atlas is Versailles (9 km away). In January its highs average 6.6°C, about as warm as Saint-Quentin-en-Yvelines, with 52 mm of rain.

Among the 57 cities listed in France, Saint-Quentin-en-Yvelines ranks joint 48th of 57 for the warmest January highs and joint 6th of 57 for the driest January (rainfall, lowest first). The mean January high of those 57 cities is 8.0°C; Saint-Quentin-en-Yvelines is 1.5°C cooler than that mean.

From January to February, average highs rise by 1.1°C to 7.7°C, and monthly rainfall falls from 53 mm to 47 mm.

The annual picture

January in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. -5051015202530 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1000

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Saint-Quentin-en-Yvelines climate table

1991–2020
Monthly climate averages for Saint-Quentin-en-Yvelines, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January, selected 6.5°C1.5°C1.5°C5311.38.89 h
February 7.7°C1.2°C1.2°C4710.010.110 h
March 11.1°C3.0°C3.0°C5110.611.912 h
April 14.3°C5.2°C5.2°C5210.913.714 h
May 17.7°C8.9°C8.9°C6711.615.215 h
June 20.9°C12.1°C12.1°C6010.416.116 h
July 23.3°C14.2°C14.2°C559.115.716 h
August 23.4°C14.2°C14.2°C588.914.414 h
September 19.9°C11.3°C11.3°C488.512.613 h
October 15.4°C8.6°C8.6°C6311.210.911 h
November 10.1°C4.7°C4.7°C5911.19.29 h
December 6.9°C2.0°C2.0°C6812.48.48 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

January in nearby cities

Distance from Saint-Quentin-en-Yvelines

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 limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Saint-Quentin-en-Yvelines) is explained once on the Saint-Quentin-en-Yvelines year overview and on the Sources, method and limits page.