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France · 1991–2020

Best time to visit
Saint-Jean-en-Royans.

June leads for comfortable weather in Saint-Jean-en-Royans: typically 26.9°C by day, 15.4°C at night, with 57 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high26.9°C

Typical low15.4°C

Rain in June57 mm

Comfort

June

June · September · May

85climate match

Beach

July

July · August · June

83climate match

Outdoors

April

April · May · October

79climate match

The weakest month is January, scoring 19 against June’s 85 — days reach only 8.8°C, 15° 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

198.8° / 2.5°

Feb

3010.5° / 2.7°

Mar

4915.1° / 5.3°

Apr

5918.4° / 7.8°

May

7922.6° / 11.6°

Jun

8526.9° / 15.4°

Jul

7229.8° / 17.6°

Aug

7329.6° / 17.4°

Sep

8224.4° / 13.9°

Oct

5719° / 10.6°

Nov

2912.8° / 6.2°

Dec

239.2° / 3.3°

Monthly climate evidence for Saint-Jean-en-Royans — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	8.8°C	2.5°C	69 mm	6.9	9 h 07	19	Strong coverage
February	10.5°C	2.7°C	42 mm	5.3	10 h 20	30	Strong coverage
March	15.1°C	5.3°C	49 mm	5.7	11 h 46	49	Strong coverage
April	18.4°C	7.8°C	74 mm	7.7	13 h 25	59	Strong coverage
May	22.6°C	11.6°C	78 mm	7.3	14 h 49	79	Strong coverage
June	26.9°C	15.4°C	57 mm	5.5	15 h 36	85	Strong coverage
July	29.8°C	17.6°C	55 mm	4.7	15 h 17	72	Strong coverage
August	29.6°C	17.4°C	56 mm	4.9	14 h 04	73	Strong coverage
September	24.4°C	13.9°C	116 mm	6.2	12 h 28	82	Strong coverage
October	19°C	10.6°C	133 mm	8.2	10 h 53	57	Strong coverage
November	12.8°C	6.2°C	129 mm	8.4	9 h 29	29	Strong coverage
December	9.2°C	3.3°C	62 mm	6.8	8 h 47	23	Strong coverage

What has changed

Saint-Jean-en-Royans runs +1.9°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

+1.5

Mar

+2.3

Apr

+2.4

May

+1.6

Jun

+3.0

Jul

+1.6

Aug

+2.5

Sep

+1.4

Oct

+1.5

Nov

+1.4

Dec

+2.2

June daytime highs, 2011–2025. Last recorded: 31.5°C.

Records at MONTELIMAR, 1920–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	19.3°C10 Jan 2015	-14.4°C5 Jan 1971	100 mm6 Jan 1994	244 mm1948 · driest 0 mm in 1993	106
February	22.4°C23 Feb 1990	-17.0°C23 Feb 1948	68 mm17 Feb 1972	224 mm1972 · driest 0 mm in 2012	106
March	26.4°C25 Mar 1994	-7.4°C2 Mar 2005	91 mm30 Mar 1948	211 mm2024 · driest 0 mm in 1929	106
April	30.6°C23 Apr 1924	-3.1°C6 Apr 1970	104 mm15 Apr 2005	257 mm1986 · driest 0 mm in 1938	106
May	34.0°C21 May 2022	-1.8°C2 May 1938	108 mm6 May 1930	249 mm1951 · driest 5 mm in 2022	106
June	40.3°C27 Jun 2019	3.5°C3 Jun 1926	104 mm17 Jun 1992	260 mm1992 · driest 2 mm in 1942	106
July	40.0°C23 Jul 1929	7.5°C6 Jul 1954	100 mm30 Jul 1991	175 mm1927 · driest 1 mm in 1983	105
August	41.1°C13 Aug 2003	5.6°C21 Aug 1924	208 mm18 Aug 1927	301 mm1927 · driest 0 mm in 1937	106
September	36.2°C9 Sep 1966	0.5°C25 Sep 1928	218 mm25 Sep 1999	377 mm1999 · driest 0 mm in 1985	106
October	30.6°C9 Oct 2023	-1.6°C30 Oct 1932	180 mm11 Oct 1988	417 mm1979 · driest 1 mm in 2017	106
November	26.4°C2 Nov 1924	-10.0°C12 Nov 1921	128 mm17 Nov 2006	399 mm2014 · driest 3 mm in 1978	106
December	19.9°C7 Dec 1949	-17.2°C22 Dec 1938	132 mm1 Dec 2003	241 mm2003 · driest 1 mm in 1926	106

Typical days per month at MONTELIMAR, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	8	2
February	0	0	7	1
March	<1	0	2	2
April	2	0	<1	2
May	9	<1	0	3
June	20	8	0	2
July	27	16	0	2
August	26	15	0	2
September	14	3	0	3
October	2	0	0	4
November	0	0	2	4
December	0	0	6	2

The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 91); on 2011–2025 it is May (85). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in MONTELIMAR’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%	22%	6%	26%	5.1–10.8°C
February	<1%	20%	6%	23%	6.7–13.1°C
March	8%	22%	7%	26%	11.7–16.5°C
April	26%	24%	8%	29%	15.3–19.8°C
May	54%	25%	9%	28%	19.3–24.1°C
June	76%	19%	6%	17%	23.7–28.8°C
July	86%	14%	5%	9%	26.8–32.0°C
August	83%	17%	7%	13%	26.0–31.1°C
September	68%	21%	10%	23%	21.7–26.5°C
October	31%	25%	11%	31%	16.6–20.6°C
November	2%	27%	10%	32%	9.9–14.8°C
December	0%	24%	7%	27%	6.0–10.5°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: 1956.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2979239
NOAA station: FRE00104907 · MONTELIMAR
Station distance: 65.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 45.02°, 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 MONTELIMAR is what differs

Valence→Montélimar→Romans-sur-Isère→Orange→Carpentras→Bourg-lès-Valence→

Or put two places side by side: Saint-Jean-en-Royans vs Valence

Best time to visitSaint-Jean-en-Royans.

June

July

April

The whole year,without the guesswork.

Saint-Jean-en-Royans runs +1.9°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Saint-Jean-en-Royans.

The whole year,
without the guesswork.

Saint-Jean-en-Royans runs +1.9°C
on the 1961–1990 baseline.

Nearby, measured,
and named.