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Climate in Saint-Just · Météo-France 1991–2020 normals

Winter nights in Saint-Just are colder than in 95% of mainland French towns

Sunny July days climb to about 24.9°C. None of its 5 nearest neighbors has cooler July afternoons. Temperatures cover 26°C across the year, low to high. Long walks are most pleasant from June to September, when afternoons reach 20–25°C.

July afternoons: cooler than 73% of mainland French towns
January nights: colder than 95% of mainland French towns
Rain a year: wetter than 70% of mainland French towns

These are the figures of Météo-France’s Saint-Bonnet-le-Château station, 21 km east.

A year in Saint-Just at a glance

Each month’s typical high and low in °C, at the Saint-Bonnet-le-Château station.

Jan6°C−1°CColdest nights
Feb7°C−1°CFrosty nights
Mar11°C1°C
Apr14°C4°C
May18°C7°CWettest
Jun23°C11°C
Jul25°C13°CWarmest
Aug25°C13°C
Sep20°C9°C
Oct15°C7°C
Nov now9°C2°C
Dec7°C0°CFrosty nights
A normal year

What a year in Saint-Just feels like

Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Saint-Bonnet-le-Château.

Winter
6°C / −1°C
79 frosts a year
Spring
14°C / 4°C
210 mm of rain
Summer
24°C / 12°C
49 days of 25°C+ a year
Autumn
15°C / 6°C
248 mm of rain, the wettest season
Best months to be outsideJunJulAugSepHighs of 17–27°C and nights of 8°C or more
Rain

About 852 mm of rain a year

May is the wettest month and February the driest. About 25 days a year bring 10 mm or more. 6th wettest of 44 towns of 2,500+ in Puy-de-Dôme.

852 mm
Rain a year, over 114 days of 1 mm or more
Wetter than 70% of mainland French towns
25
Days a year with 10 mm of rain or more
1,869 hrs
Sunshine a year at Saint-Germain-l He
21 km away

Rain by month

Millimeters

93 mm
JFMAMJJASOND

Sunshine by month

Hours of sunshine at Saint-Germain-l He

242 h
JFMAMJJASOND
Frost & warm days

A frosty town: 79 frosts and 49 days of 25°C a year

On about 79 nights a year the air drops to 0°C or below, and on about 13 days it stays below freezing all day. About 49 days a year reach 25°C, and 12 reach 30°C.

79
Air frosts a year (below 0°C)
More frosts than 94% of mainland French towns
13
Days that stay below 0°C
49
Days of 25°C or more
Fewer warm days than 69% of mainland French towns
12
Hot days, 30°C or more
Fewer hot days than 70% of mainland French towns

Day counts are Météo-France’s 1991–2020 normals at Saint-Bonnet-le-Château: a frost is a night of 0°C or below, a summer day (jour d’été) 25°C or more, a hot day (forte chaleur) 30°C or more.

Weather station

The Météo-France station at Saint-Bonnet-le-Château

Saint-Bonnet-le-Château is 21 km east of Saint-Just. Every figure on this page is the station’s, not a measurement in Saint-Just itself.

Station (Météo-France number)Saint-Bonnet-le-Château (42204002)
Distance from the town21 km east
Station altitude822 m
Town altitude (its center)817 m
Period1993–2020 (the station’s own record)
Nearest station of any kind7.6 km
Sunshine measured atSaint-Germain-l He, 21 km away

TownRatings matches each commune to one station with at least 24 years of temperature and rain records: the nearest, counting every 100 m of height difference as 10 km, never across the sea.

Compared with other towns

How Saint-Just compares

Against the 4,385 towns of 2,500 or more in mainland France, each read from its own matched station. The dots are the other towns of 2,500+ in Puy-de-Dôme.

July afternoons24.9°C
Saint-JustMedian mainland town
21°C23°C25°C27°C
Cooler than 73% of mainland French towns42nd warmest of 44 towns of 2,500+ in Puy-de-Dôme
January nights−1.2°C
Saint-JustMedian mainland town
−3°C−2°C−1°C0°C1°C2°C
Colder than 95% of mainland French towns41st mildest of 44 towns of 2,500+ in Puy-de-Dôme
Rain a year852 mm
Saint-JustMedian mainland town
4006008001,0001,200
Wetter than 70% of mainland French towns6th wettest of 44 towns of 2,500+ in Puy-de-Dôme
Frosts a year79 nights
Saint-JustMedian mainland town
406080100120
More frosts than 94% of mainland French towns6th frostiest of 44 towns of 2,500+ in Puy-de-Dôme
Days of 25°C or more49 days
Saint-JustMedian mainland town
20406080
Fewer warm days than 69% of mainland French towns42nd most 25°C days of 44 towns of 2,500+ in Puy-de-Dôme
Next door

Nearby towns’ climate

The nearest towns of 2,500+ within 29 km, each with its own matched station.

TownStationJuly highJanuary lowRain a year
Saint-JustSaint-Bonnet-le-Château24.9°C−1.2°C852 mm
Ambert 11 kmAmbert26.0°C 1.1°C warmer−1.9°C 0.7°C colder860 mm
Montbrison 26 kmSavigneux26.5°C 1.6°C warmer−1.0°C about the same665 mm
Saint-Romain-le-Puy 27 kmSavigneux26.5°C 1.6°C warmer−1.0°C about the same665 mm
Savigneux 27 kmSavigneux26.5°C 1.6°C warmer−1.0°C about the same665 mm
Saint-Marcellin-en-Forez 28 kmSaint-Étienne-Bouthéon26.9°C 2°C warmer0.3°C 1.5°C milder728 mm
Month by month

Saint-Just weather by month

Average daily high and low, mean temperature and rain, 1991–2020, at the Saint-Bonnet-le-Château station; sunshine at Saint-Germain-l He.

MonthHighLowMeanRainSun (hours)
January5.7°C−1.2°C2.2°C56 mm83
February6.8°C−1.1°C2.8°C45 mm106
March10.8°C1.2°C6.0°C49 mm160
April14.1°C3.8°C8.9°C68 mm176
May18.2°C7.4°C12.8°C93 mm182
June22.5°C11.0°C16.8°C77 mm214
July24.9°C12.8°C18.8°C82 mm242
August24.6°C12.7°C18.7°C77 mm230
September19.7°C9.3°C14.5°C79 mm188
October15.3°C6.8°C11.0°C85 mm130
November9.3°C2.2°C5.7°C84 mm82
December6.5°C−0.3°C3.1°C58 mm76
Year14.9°C5.4°C10.1°C852 mm1,869
Sources

Where Saint-Just’s numbers come from

Averages over 30 years, not a forecast.

  • Temperature, rain and day counts: Météo-France’s fiche climatologique for Saint-Bonnet-le-Château, 21 km away: statistics for 1991–2020 (the station’s own years, 1993–2020, where its record is shorter).
  • Which station: among stations with at least 24 of the 30 years of temperature and rain, the nearest to the commune’s population-weighted center, counting each 100 m of height difference as 10 km; mainland towns use mainland stations and each overseas département its own.
  • Altitudes: the town’s from IGN’s RGE ALTI® at its population-weighted center; the station’s from Météo-France.
  • Sunshine: the nearest station with at least 10 years of sunshine records, Saint-Germain-l He, 21 km away.
  • Comparisons: every town of 2,500 or more in mainland France, read the same way; the dots are the towns of 2,500+ in Puy-de-Dôme.

Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.

Questions about Saint-Just’s climate

How warm does Saint-Just get in summer?

July is the warmest month, with average highs of 24.9°C. About 49 days a year reach 25°C, fewer than 69% of mainland French towns, and about 12 reach 30°C.

How cold does Saint-Just get in winter?

January nights average −1.2°C. The air drops to 0°C or below on about 79 nights a year, and about 13 days a year stay below freezing all day.

How much rain does Saint-Just get?

About 852 mm a year, more than 70% of mainland French towns. May is the wettest month (93 mm) and February the driest (45 mm).

How sunny is it?

The nearest Météo-France station that records sunshine, Saint-Germain-l He (21 km away), averages 1,869 hours of sunshine a year.

Are these figures for Saint-Just itself?

No: they are the normals of the Météo-France station matched to Saint-Just, Saint-Bonnet-le-Château, 21 km away. France publishes its climate normals by station, not by commune; a valley, a hill or the sea can make a difference over a few kilometers.

Where do these figures come from?

Météo-France’s fiches climatologiques: 30-year averages (1991–2020) for each of its long-running stations, published as open data since 2024. They are normals, not a forecast.

Source: Météo-France, fiches climatologiques, 1991–2020 statistics (station ST-BONNET-LE-CHATEAU_SAPC, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Saint-Just →

Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.