Climate averages 1991–2020

La Rochelle weather
in January.

A cool, moderately wet month: the coolest and the 9th driest of the year.

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

Average high 9.3°C Daytime mean, January
Average low 4.5°C Night-time mean, January
Rainfall 77 mm 12 days with ≥1 mm
Daylight 9 h Sunrise to sunset, per day
Every month in La Rochelle · average highYear overview

January is a cool month in La Rochelle: daytime highs average 9.3°C and nights cool to about 4.5°C. By daytime temperature it is the coolest month of the year.

Expect about 77 mm of rain on roughly 12 days, which makes January a moderately wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 04 min on an average January day.

The nearest other city in this atlas is Nantes (121 km away). In January its highs average 8.9°C, about as warm as La Rochelle, with 71 mm of rain.

Among the 57 cities listed in France, La Rochelle ranks 17th of 57 for the warmest January highs and 50th of 57 for the driest January (rainfall, lowest first). The mean January high of those 57 cities is 8.0°C; La Rochelle is 1.3°C warmer than that mean.

From January to February, average highs rise by 0.7°C to 10.0°C, and monthly rainfall falls from 77 mm to 58 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. 051015202530 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

La Rochelle climate table

1991–2020
Monthly climate averages for La Rochelle, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January, selected 9.3°C4.5°C4.5°C7711.99.19 h
February 10.0°C4.2°C4.2°C589.810.310 h
March 12.8°C6.3°C6.3°C5410.011.912 h
April 15.2°C8.4°C8.4°C579.813.514 h
May 18.7°C11.8°C11.8°C5710.214.915 h
June 21.8°C14.9°C14.9°C478.415.716 h
July 23.7°C16.7°C16.7°C367.115.415 h
August 24.1°C16.9°C16.9°C427.214.214 h
September 21.6°C14.4°C14.4°C558.012.613 h
October 17.5°C11.7°C11.7°C8712.311.011 h
November 12.8°C7.7°C7.7°C9212.89.59 h
December 9.9°C5.1°C5.1°C8712.88.79 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 La Rochelle

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 La Rochelle) is explained once on the La Rochelle year overview and on the Sources, method and limits page.