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Blois weather & best time to visit

City break

Blois at a glance

Best time
May – Sep
Warmest month
Jul · 27°
Sunshine a year
1,810 h
Rain a year
690 mm
Climate
Temperate
Time zone
UTC+1 / UTC+2
Elevation
109 m

Climate in Blois

Blois has a temperate climate with warm summers and cool winters. July is the warmest month with average highs of 27 °C, while January is the coolest at 8 °C. With around 1,810 hours of sunshine a year, Blois is moderately sunny; July is the sunniest month with 7.4 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Blois

The best time to visit Blois is from May to September. For sightseeing, day trips and hiking, conditions are most comfortable from April to October. The wettest month is October with 73 mm of precipitation.

Blois through the seasons

How the weather changes over the seasons, with averages for each.

Blois in spring

Mar – May

64

Good

  • 13–20 °C by day
  • 5.9 h of sun a day
  • 33 rainy days in all

Blois in summer

Jun – Aug

85

Excellent

  • 24–27 °C by day
  • 7.3 h of sun a day
  • 25 rainy days in all

Blois in autumn

Sep – Nov

59

Fair

  • 11–22 °C by day
  • 4.2 h of sun a day
  • 30 rainy days in all

Blois in winter

Dec – Feb

17

Poor

  • 8–9 °C by day
  • 2.4 h of sun a day
  • 33 rainy days in all

Which month for what?

Beach & swimming

No sea nearby

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

Apr – Oct

15–28 °C and not too much rain

Find your perfect month

Tell us what you like and we rate every month in Blois for you.

Sunshine
Little rain

Your best months: June, September

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

64

Holiday weather in October

Good

Best time to visit: May – September

Good forSightseeing & walks

A typical day in October

  1. Morning, 08:00: about 9°
  2. Midday, 13:00: about 16°
  3. Afternoon, 16:00: about 17°
  4. Evening, 20:00: about 14°
  5. Night, 23:00: about 12°

08:1219:09

Cool evenings: pack a jumper or a jacket.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 07:53–08:54 · evening 18:27–19:28
Blue hour
Morning 07:41–07:53 · evening 19:28–19:40

Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.

October in Blois compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 20° at the start of the month to 14° at the end. The days get 1.6 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high20°14°
Night-time low10°7°
Daylight11.7 h10.1 h

What is the weather like in Blois in October?

In October, Blois is mild: daytime highs average 17 °C, and nights cool down to about 8 °C. The sun is scarce, with only about 3.9 hours a day. Rain is frequent, with about 11 rainy days and 73 mm in total. All in all, October is a good month for a holiday in Blois.

More details for October

Daylight
10 h 57 min08:12 – 19:09
UV index
3 · moderateclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
18 km/haverage daily peakAll months
Cloud cover
67 %on averageAll months
Hot days
0 days30 °C or moreAll months
Snow days
0 days1 cm or more of fresh snow
Time zone
UTC+2offset from UTC

How the score comes together

  • Temperatureweight 50 %91 %
  • Sunshineweight 20 %15 %
  • Few rainy daysweight 30 %50 %

Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.

What to pack in October

  • A jumper for the evenings
  • Rain jacket or umbrella

Compare two months in Blois

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

July has the better holiday weather in Blois: score 86 against 64. In July, days are 10 °C warmer than in October. July has 3 fewer rainy days. The sun shines 4 hours longer a day in July.

October vs July, Blois
MonthOctoberJuly
Holiday weather score6486better
Daytime high17°27°
Night-time low8°14°
Sunshine3.9 h7.4 hbetter
Rainy days118better
Rainfall73 mm48 mmbetter

Based on the climate averages 1996–2025.

Blois month by month

The typical weather for every month at a glance.

14January8° · 2.0 h

In January, Blois is cold: daytime highs average 8 °C, and nights cool down to about 2 °C. The sun is scarce, with only about 2.0 hours a day. Rain is frequent, with about 11 rainy days and 61 mm in total. All in all, January is not an ideal month for a holiday in Blois.

Blois in January
23February9° · 3.3 h

In February, Blois is cold: daytime highs average 9 °C, and nights cool down to about 2 °C. The sun is scarce, with only about 3.3 hours a day. Rain is frequent, with about 10 rainy days and 50 mm in total. All in all, February is not an ideal month for a holiday in Blois.

Blois in February
46March13° · 4.7 h

In March, Blois is cool: daytime highs average 13 °C, and nights cool down to about 4 °C. Expect around 4.7 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 55 mm in total. All in all, March is a so-so month for a holiday in Blois.

Blois in March
69April16° · 6.2 h

In April, Blois is mild: daytime highs average 16 °C, and nights cool down to about 5 °C. Expect around 6.2 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 53 mm in total. All in all, April is a good month for a holiday in Blois.

Blois in April
77May20° · 6.8 h

In May, Blois is mild: daytime highs average 20 °C, and nights cool down to about 9 °C. The sun shines for around 6.8 hours a day. Rain is frequent, with about 12 rainy days and 69 mm in total. All in all, May is a good month for a holiday in Blois.

Blois in May
83June24° · 7.0 h

In June, Blois is warm: daytime highs average 24 °C, and nights cool down to about 12 °C. The sun shines for around 7.0 hours a day. Rain falls on about 9 days, adding up to 52 mm. All in all, June is an excellent month for a holiday in Blois.

Blois in June
86July27° · 7.4 h

In July, Blois is warm: daytime highs average 27 °C, and nights cool down to about 14 °C. The sun shines for around 7.4 hours a day. Rain falls on about 8 days, adding up to 48 mm. On about 6 days the thermometer climbs to 30 °C or more. All in all, July is an excellent month for a holiday in Blois.

Blois in July
86August26° · 7.4 h

In August, Blois is warm: daytime highs average 26 °C, and nights cool down to about 14 °C. The sun shines for around 7.4 hours a day. Rain falls on about 8 days, adding up to 47 mm. On about 6 days the thermometer climbs to 30 °C or more. All in all, August is an excellent month for a holiday in Blois.

Blois in August
83September22° · 6.2 h

In September, Blois is warm: daytime highs average 22 °C, and nights cool down to about 11 °C. Expect around 6.2 hours of sunshine a day. Rain falls on about 8 days, adding up to 48 mm. All in all, September is an excellent month for a holiday in Blois.

Blois in September
64October17° · 3.9 h

In October, Blois is mild: daytime highs average 17 °C, and nights cool down to about 8 °C. The sun is scarce, with only about 3.9 hours a day. Rain is frequent, with about 11 rainy days and 73 mm in total. All in all, October is a good month for a holiday in Blois.

Blois in October
30November11° · 2.5 h

In November, Blois is cool: daytime highs average 11 °C, and nights cool down to about 5 °C. The sun is scarce, with only about 2.5 hours a day. Rain is frequent, with about 12 rainy days and 66 mm in total. All in all, November is not an ideal month for a holiday in Blois.

Blois in November
14December8° · 1.9 h

In December, Blois is cold: daytime highs average 8 °C, and nights cool down to about 3 °C. The sun is scarce, with only about 1.9 hours a day. Rain is frequent, with about 12 rainy days and 69 mm in total. All in all, December is not an ideal month for a holiday in Blois.

Blois in December

Climate in detail

Year & climate table

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in Blois

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Cold 0–8°
  • Cool 8–15°

CoolOctober: nights around 8°. A duvet at night and a jumper for the evening.

The coolest nights are in February (2°), the warmest in July (14°). Nights fall below 8 °C on average from November to April, so the room should be heated.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 17°Night 8°
DayNight
MonthScoreDayNightSunRain daysRain mm
JanuaryJan148°2°2.0 h1161
FebruaryFeb239°2°3.3 h1050
MarchMar4613°4°4.7 h1155
AprilApr6916°5°6.2 h1053
MayMay7720°9°6.8 h1269
JuneJun8324°12°7.0 h952
JulyJul8627°14°7.4 h848
AugustAug8626°14°7.4 h847
SeptemberSep8322°11°6.2 h848
OctoberOct6417°8°3.9 h1173
NovemberNov3011°5°2.5 h1266
DecemberDec148°3°1.9 h1269

Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences

47.59° N, 1.33° E · 109 m · Europe/Paris

Sunshine
Sunshine

Sunshine hours in Blois

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
1,810 hours
Sunniest month
Jul · 7.4 h a day
Least sunshine
Dec · 1.9 h a day
OctoberSunshine 3.9 hDaylight 11.0 hShare of daylight 35 %
SunshineDaylight

In October, the sun shines for about 3.9 of 11.0 hours of daylight in Blois, 35 % of the daylight hours.

Sunshine hours: measured at the weather station 13 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.

Rain
Rain

Rain in Blois: rainy days and rainfall

A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.

Per year
690 mm on 121 days
Wettest month
Oct · 73 mm
Driest month
Aug · 47 mm
OctoberRainy days 11Rainfall 73 mm

In October, Blois has about 11 rainy days with 73 mm of rain in total.

UV index
Sun protection

UV index in Blois

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
3 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.

The sun is strongest in June (UV 8).

Minutes until sunburn in October

Very fair skin
about 50 min
Fair skin
about 65 min
Light brown skin
about 90 min
Olive skin
about 115 min

Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.

Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.

Wind & clouds
Wind & clouds

Wind and clouds in Blois

How breezy and how cloudy Blois is through the year. Tap a month to select it on the whole page.

Wind

Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.

Year average
18 km/h · gentle breeze
Windiest month
Dec · 20 km/h
Calmest month
Aug · 16 km/h
OctoberWind 18 km/hBeaufort 3

In October, the wind in Blois typically peaks at 18 km/h during the day: Beaufort 3, gentle breeze.

Clouds

Average share of the sky covered by cloud, day and night.

Year average
64 % · variable cloud
Clearest month
Jul · 54 %
Cloudiest month
Jan · 76 %
OctoberCloud cover 67 %Sunshine 3.9 h

In October, cloud covers on average 67 % of the sky over Blois: mostly cloudy, with about 3.9 hours of sunshine a day.

Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.

Heat & humidity
Heat & humidity

Heat and humidity in Blois

How often the day gets hot in Blois (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.

Hot days a year
16 days
Hottest month
Jul · 27 °C
Hot months
none

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 0Daytime high 17 °C

In October, Blois has about 0 hot days, with an average daytime high of 17 °C: pleasant. Heat plays no part this month.

Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year

Planning a trip to Blois

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

Blois in the school holidays

How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.

Blois has its best school-holiday weather during the summer holidays (score 86) and its weakest during the Christmas holidays (score 14).

  • Easter holidays

    Mar – Apr

    62

    Good

    • 15 °C by day
    • 5.8 h of sun a day
    • 10 rainy days a month
  • May half-term

    May – Jun

    78

    Good

    • 21 °C by day
    • 6.8 h of sun a day
    • 11 rainy days a month

    Good for: Sightseeing & walks

  • Summer holidays

    Jul – Aug

    86

    ExcellentBest holidays

    • 26 °C by day
    • 7.4 h of sun a day
    • 8 rainy days a month

    Good for: Sightseeing & walks

  • October half-term

    Oct

    64

    Good

    • 17 °C by day
    • 3.9 h of sun a day
    • 11 rainy days a month

    Good for: Sightseeing & walks

  • Christmas holidays

    Dec – Jan

    14

    Poor

    • 8 °C by day
    • 2.0 h of sun a day
    • 12 rainy days a month

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
Short trip – train or car is often quicker
Distance
450 km
Time zone
UTC+2
Jet lag
Hardly any (under 3 h)

Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.

Good to know: France

Currency
Euro (EUR)
Language
French
Sockets
Type C, E · 230 V
Traffic
Drives on the right
Dialling code
+33
Emergency number
112

UK plugs need a travel adapter

Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.

Compare & alternatives

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Blois compared

Put Blois side by side with another destination.

Nearby:
Compare with home:

Blois vs Amboise

In October the holiday weather in Blois and Amboise is about equally good (score 64 vs 68). During the day Amboise is 1 °C warmer than Blois.

Blois vs Amboise, in October
in OctoberBloisAmboise
Holiday weather score6468
Daytime high17°18°
Sunshine4 h4 h
Rainy days1111
Best timeMay – SepApr – Sep

Through the year

OctoberBlois 17°Amboise 18°
BloisAmboise
Go to Amboise
Best places in the country
Ranking

France in October: the best places

In October, Blois ranks 11 among the 31 nearest destinations in this country.

  1. Amboise18°68
  2. 2Saumur18°68
  3. 3Chinon18°67
  4. 4Poitiers18°67
  5. 5Angers18°67
  6. 6Tours18°66
  7. 7Châteauroux18°66
  8. 8Bourges18°66
  9. 11BloisThis page17°64
All destinations: France
Places nearby

Near Blois

Other destinations close by.

Places with a similar climate

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Destinations whose weather through the year is closest to Blois's – good alternatives.

  1. 91 % similar61ParisFrance17°Best time: Apr – Sep
  2. 91 % similar62SensFrance17°Best time: Apr – Sep
  3. 91 % similar61Boulogne-BillancourtFrance17°Best time: Apr – Sep
  4. 90 % similar62TroyesFrance17°Best time: Apr – Sep

Frequently asked questions about Blois

When is the best time to visit Blois?

The best time to visit Blois is from May to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

What is the warmest month in Blois?

July is the warmest month, with average highs of 27 °C and nights around 14 °C. January is the coolest month at 8 °C.

When does it rain most in Blois?

The wettest month is October with 73 mm of precipitation. The driest month is August with 47 mm.

How many hours of sunshine does Blois get?

Blois gets around 1,810 hours of sunshine a year. The sunniest month is July with 7.4 hours a day; in December there are 1.9 hours a day.

What time zone is Blois in?

Blois is on UTC+1 in January and UTC+2 in July.

Which school holidays are best for Blois?

Blois has its best school-holiday weather during the summer holidays (score 86) and its weakest during the Christmas holidays (score 14). Holiday ratings (0–100): Easter holidays 62, May half-term 78, summer holidays 86, October half-term 64, Christmas holidays 14.