Home·France·Rhône-Alpes

France · 1991–2020

Best time to visit
Saint-Étienne.

June leads for comfortable weather in Saint-Étienne: typically 25°C by day, 14.8°C at night, with 71 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high25°C

Typical low14.8°C

Rain in June71 mm

Comfort

June

June · September · July

86climate match

Beach

July

July · August · June

73climate match

Outdoors

May

May · September · April

78climate match

The weakest month is January, scoring 10 against June’s 86 — days reach only 6.8°C, 17° below the 24°C the score treats as ideal.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

106.8° / 1°

Feb

188.5° / 1.4°

Mar

3813.4° / 4.3°

Apr

5317° / 7.2°

May

7021° / 11.2°

Jun

8625° / 14.8°

Jul

7727.5° / 16.7°

Aug

7727.4° / 16.5°

Sep

8022.6° / 12.7°

Oct

5317.4° / 9.5°

Nov

2511.1° / 4.7°

Dec

117.4° / 1.8°

Monthly climate evidence for Saint-Étienne — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	6.8°C	1°C	55 mm	9	9 h 04	10	Strong coverage
February	8.5°C	1.4°C	47 mm	8.1	10 h 18	18	Strong coverage
March	13.4°C	4.3°C	54 mm	8.5	11 h 46	38	Strong coverage
April	17°C	7.2°C	72 mm	8.5	13 h 26	53	Strong coverage
May	21°C	11.2°C	83 mm	10.1	14 h 52	70	Strong coverage
June	25°C	14.8°C	71 mm	8.6	15 h 39	86	Strong coverage
July	27.5°C	16.7°C	67 mm	7.2	15 h 20	77	Strong coverage
August	27.4°C	16.5°C	71 mm	7.4	14 h 06	77	Strong coverage
September	22.6°C	12.7°C	87 mm	7.1	12 h 28	80	Strong coverage
October	17.4°C	9.5°C	101 mm	9.8	10 h 51	53	Strong coverage
November	11.1°C	4.7°C	92 mm	9.8	9 h 26	25	Strong coverage
December	7.4°C	1.8°C	63 mm	9.9	8 h 44	11	Strong coverage

What has changed

Saint-Étienne runs +2.2°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

+1.6

Feb

+1.7

Mar

+2.7

Apr

+2.6

May

+1.9

Jun

+3.1

Jul

+1.8

Aug

+2.9

Sep

+1.5

Oct

+1.7

Nov

+1.9

Dec

+2.8

June daytime highs, 2011–2025. Last recorded: 29.5°C.

Records at LYON - ST EXUPERY, 1920–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	20.4°C10 Jan 2015	-23.0°C23 Jan 1963	46 mm16 Jan 2015	153 mm1948 · driest 6 mm in 1921	106
February	22.4°C24 Feb 1990	-22.5°C14 Feb 1929	61 mm6 Feb 2009	124 mm1977 · driest 1 mm in 1921	106
March	26.1°C22 Mar 1990	-10.5°C7 Mar 1971	53 mm4 Mar 1933	168 mm1937 · driest 1 mm in 1953	106
April	30.1°C16 Apr 1949	-4.4°C10 Apr 1949	69 mm28 Apr 2024	231 mm1983 · driest 1 mm in 1938	106
May	34.2°C16 May 1945	-3.8°C1 May 1938	103 mm10 May 2021	234 mm1983 · driest 11 mm in 2022	106
June	38.1°C22 Jun 2003	2.3°C1 Jun 1959	71 mm7 Jun 1955	165 mm1992 · driest 18 mm in 2003	106
July	39.5°C1 Jul 1952	6.1°C7 Jul 1962	74 mm8 Jul 1927	180 mm2014 · driest 0 mm in 1921	105
August	39.9°C24 Aug 2023	4.6°C25 Aug 1940	100 mm8 Aug 1995	226 mm1954 · driest 7 mm in 1949	105
September	35.8°C5 Sep 1949	0.2°C24 Sep 1928	89 mm30 Sep 1958	302 mm1993 · driest 5 mm in 1929	106
October	30.3°C9 Oct 2023	-4.5°C31 Oct 1950	97 mm3 Oct 1935	253 mm1993 · driest 5 mm in 1921	106
November	23.0°C2 Nov 1924	-9.4°C30 Nov 1925	90 mm20 Nov 1920	283 mm2002 · driest 8 mm in 1978	106
December	20.1°C18 Dec 1989	-24.6°C22 Dec 1938	81 mm9 Dec 1954	134 mm1981 · driest 4 mm in 1920	106

Typical days per month at LYON - ST EXUPERY, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	13	2
February	0	0	10	1
March	0	0	4	1
April	1	0	<1	2
May	7	<1	0	3
June	16	5	0	2
July	22	10	0	2
August	21	10	0	2
September	9	2	0	3
October	1	0	<1	3
November	0	0	4	3
December	0	0	11	1

The best month has moved. On the 1961–1990 numbers the strongest month here was July (scoring 88); on 2011–2025 it is September (92). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in LYON - ST EXUPERY’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	0%	32%	4%	41%	2.6–9.4°C
February	<1%	29%	5%	36%	4.2–11.8°C
March	5%	29%	5%	38%	9.9–15.3°C
April	20%	30%	7%	40%	13.6–18.5°C
May	40%	33%	8%	43%	17.7–22.6°C
June	62%	29%	9%	35%	21.8–27.1°C
July	75%	23%	7%	22%	24.1–30.0°C
August	72%	26%	9%	28%	23.9–29.3°C
September	55%	26%	9%	31%	19.8–25.1°C
October	22%	29%	9%	37%	14.7–19.5°C
November	1%	32%	9%	42%	7.6–13.3°C
December	0%	32%	5%	42%	3.3–9.1°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1921Each stripe is one year’s mean temperature against the 105-year average. Warmest: 2022. Coolest: 1963.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2980291
NOAA station: FR069029001 · LYON - ST EXUPERY
Station distance: 62.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 45.43°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from LYON - ST EXUPERY is what differs

Lyon→Villeurbanne→Lyon 03→Lyon 08→Lyon 07→Vénissieux→

Or put two places side by side: Saint-Étienne vs Lyon

Best time to visitSaint-Étienne.

June

July

May

The whole year,without the guesswork.

Saint-Étienne runs +2.2°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Saint-Étienne.

The whole year,
without the guesswork.

Saint-Étienne runs +2.2°C
on the 1961–1990 baseline.

Nearby, measured,
and named.