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France · 1991–2020

Best time to visit
Blois.

July leads for comfortable weather in Blois: typically 25.9°C by day, 14.4°C at night, with 47 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high25.9°C

Typical low14.4°C

Rain in July47 mm

Comfort

July

July · August · June

88climate match

Beach

July

July · August · June

67climate match

Outdoors

May

May · September · June

87climate match

The weakest month is January, scoring 13 against July’s 88 — days reach only 7.7°C, 16° 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

137.7° / 2.5°

Feb

199° / 2.2°

Mar

3612.9° / 4.3°

Apr

5016° / 6°

May

6719.6° / 9.4°

Jun

8723.4° / 12.6°

Jul

8825.9° / 14.4°

Aug

8826° / 14.3°

Sep

8122.1° / 11.4°

Oct

5517° / 9°

Nov

2911.4° / 5.2°

Dec

138.2° / 2.8°

Monthly climate evidence for Blois — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	7.7°C	2.5°C	63 mm	11	8 h 49	13	Strong coverage
February	9°C	2.2°C	52 mm	9.8	10 h 10	19	Strong coverage
March	12.9°C	4.3°C	49 mm	9.3	11 h 44	36	Strong coverage
April	16°C	6°C	53 mm	8.9	13 h 33	50	Strong coverage
May	19.6°C	9.4°C	58 mm	9	15 h 06	67	Strong coverage
June	23.4°C	12.6°C	53 mm	7.6	15 h 57	87	Strong coverage
July	25.9°C	14.4°C	47 mm	6.7	15 h 37	88	Strong coverage
August	26°C	14.3°C	44 mm	6.6	14 h 16	88	Strong coverage
September	22.1°C	11.4°C	52 mm	7.5	12 h 30	81	Strong coverage
October	17°C	9°C	66 mm	9.8	10 h 46	55	Strong coverage
November	11.4°C	5.2°C	69 mm	11.4	9 h 13	29	Strong coverage
December	8.2°C	2.8°C	72 mm	11.5	8 h 27	13	Strong coverage

What has changed

Blois runs +2.0°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

+1.3

Feb

+1.5

Mar

+2.3

Apr

+2.5

May

+2.0

Jun

+2.7

Jul

+2.1

Aug

+2.1

Sep

+1.5

Oct

+1.5

Nov

+1.9

Dec

+2.3

July daytime highs, 2011–2025. Last recorded: 27.1°C.

Records at TOURS, 1959–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	16.9°C15 Jan 1975	-17.4°C17 Jan 1987	37 mm21 Jan 2021	142 mm1995 · driest 7 mm in 1992	67
February	22.1°C27 Feb 2019	-14.2°C4 Feb 1963	31 mm25 Feb 1997	145 mm1977 · driest 5 mm in 1965	67
March	25.3°C31 Mar 2021	-10.3°C1 Mar 2005	34 mm26 Mar 1980	128 mm2001 · driest 3 mm in 1961	67
April	29.2°C30 Apr 2005	-3.4°C21 Apr 1991	34 mm30 Apr 2015	199 mm1998 · driest 5 mm in 2007	67
May	33.7°C26 May 2026	-0.6°C8 May 1974	62 mm11 May 2009	138 mm1985 · driest 11 mm in 1976	67
June	39.8°C22 Jun 2026	2.6°C5 Jun 1969	58 mm13 Jun 1970	157 mm2021 · driest 0 mm in 1976	63
July	40.8°C25 Jul 2019	4.3°C5 Jul 1965	52 mm29 Jul 1999	113 mm2001 · driest 4 mm in 2016	62
August	39.8°C10 Aug 2003	4.8°C30 Aug 1986	62 mm5 Aug 1997	132 mm1965 · driest 3 mm in 2009	62
September	35.5°C9 Sep 2023	0.9°C11 Sep 1972	48 mm8 Sep 2003	174 mm1965 · driest 5 mm in 1997	65
October	31.1°C2 Oct 2023	-2.3°C29 Oct 1997	44 mm25 Oct 1966	152 mm1966 · driest 3 mm in 1978	66
November	22.3°C7 Nov 2015	-7.1°C24 Nov 1998	39 mm6 Nov 1997	168 mm1969 · driest 12 mm in 1978	67
December	18.5°C7 Dec 2000	-18.5°C29 Dec 1964	35 mm20 Dec 1976	158 mm1999 · driest 12 mm in 1963	67

Typical days per month at TOURS, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	10	2
February	0	0	9	1
March	0	0	4	1
April	<1	0	1	1
May	3	<1	0	2
June	10	2	0	2
July	18	5	0	2
August	17	5	0	1
September	7	1	0	2
October	<1	0	<1	2
November	0	0	3	2
December	0	0	9	2

The best month has moved. On the 1961–1990 numbers the strongest month here was August (scoring 94); on 2011–2025 it is June (92). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in TOURS’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%	37%	5%	48%	4.6–9.7°C
February	<1%	36%	5%	47%	5.9–11.9°C
March	3%	32%	4%	40%	9.9–14.6°C
April	13%	30%	4%	37%	13.2–17.7°C
May	31%	32%	6%	39%	16.7–21.8°C
June	58%	25%	5%	30%	20.2–26.1°C
July	75%	22%	5%	23%	23.0–27.9°C
August	76%	21%	4%	23%	22.6–27.8°C
September	53%	26%	5%	33%	19.4–24.3°C
October	18%	31%	7%	40%	15.0–19.4°C
November	<1%	36%	6%	49%	9.4–13.4°C
December	0%	37%	6%	51%	5.5–10.0°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.

1960Each stripe is one year’s mean temperature against the 62-year average. Warmest: 2022. Coolest: 1985.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 3032213
NOAA station: FRE00106190 · TOURS
Station distance: 48.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 47.59°, 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 TOURS is what differs

Vendôme→La Flèche→Châteaudun→Trélazé→La Chapelle-Saint-Mesmin→Beaugency→

Or put two places side by side: Blois vs Vendôme

Best time to visitBlois.

July

July

May

The whole year,without the guesswork.

Blois runs +2.0°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Blois.

The whole year,
without the guesswork.

Blois runs +2.0°C
on the 1961–1990 baseline.

Nearby, measured,
and named.