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Weather extremes

How extreme does La Rochelle's weather get?

The hottest, coldest, wettest and snowiest days La Rochelle has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 50+ years of daily weather observations (1971–present), from the Pte De Chassiron station 24 km away. Updated through April 2026 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days La Rochelle has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
103°F Jul 18, 2022

That is about 31°F hotter than a normal July afternoon in La Rochelle (typical high near 72°F).

The three most extreme on record

1 103°F Jul 18, 2022recent
2 97°F Aug 4, 2003
3 97°F Aug 11, 2024
❄️ Coldest night
14°F Jan 15, 1985

About 28°F colder than a normal January night in La Rochelle (typical low near 42°F).

The three most extreme on record

1 14°F Jan 15, 1985
2 14°F Jan 16, 1985
3 15°F Jan 12, 1987
🌧️ Most rain in one day
5.57 in Aug 14, 1972

More rain in a single day than La Rochelle usually gets in the whole month of August (typical August total about 1.7 in).

The three most extreme on record

1 5.57 in Aug 14, 1972
2 2.35 in Sep 29, 1999
3 2.16 in May 12, 1981

How hot and cold it gets, month by month

The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.

-10°10°30°50°70°90°110°130° all-time high 103°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

La Rochelle's record heat sits well above even a hot day for the season — July's 103°F is about 31°F beyond a normal hot afternoon. Its record cold is just as far below a normal winter night — the dots mark how rare each extreme really is.

In plain terms

In a normal year, La Rochelle's warmest days reach the low 70s°F and its coldest nights drop to the low 40s°F. But across the record it has gone as high as 103°F and as low as 14°F. A single day has delivered over 6 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.
Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Pte DE Chassiron, a weather station, about 24 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →