When is the best time to visit Nantes?

The weather in Nantes, month by month

Daytime and night-time temperatures, then rainfall. Records 2015-2024 (Les Machines de l'île). The exact figures are in the table below.
The table of records, month by month
Real 2015-2024 records at the reference point "Les Machines de l'île" (ERA5 reanalysis via Open-Meteo). Published as open data.
MonthHighLowSunshineRainfallRainy daysBest
January9°4°4.6 h100 mm14 d
February11°5°6.1 h72 mm11 d
March13°6°7.9 h81 mm12 d
April16°8°9.9 h63 mm9 d
May19°11°10.9 h65 mm12 d✓
June23°14°11.7 h74 mm11 d✓
July24°15°12.2 h49 mm9 d✓
August25°16°11.4 h47 mm9 d✓
September23°14°9.7 h68 mm12 d✓
October18°11°7.2 h146 mm14 d
November13°7°5.8 h82 mm10 d
December10°5°4.5 h109 mm15 d

The four seasons in Nantes, in figures

What the 2015-2024 records (Les Machines de l'île) show, season by season, to compare at a glance instead of reading twelve rows of a table.

Winter

Dec → Feb
9 to 11°
nights 4 to 5°
  • 13 rainy days · 94 mm
  • 5.1 h of sun
Not recommended

Spring

Mar → May
13 to 19°
nights 6 to 11°
  • 11 rainy days · 70 mm
  • 9.6 h of sun
1 month recommended

Summer

Jun → Aug
23 to 25°
nights 14 to 16°
  • 10 rainy days · 57 mm
  • 11.8 h of sun
Recommended

Autumn

Sep → Nov
13 to 23°
nights 7 to 14°
  • 12 rainy days · 99 mm
  • 7.6 h of sun
1 month recommended

Book early for May to September

The timing is right, so it is right for everyone: in these months the best places to stay and the small-group tours go first. Here is where to start.

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Daylight in Nantes, month by month

The time between sunrise and sunset, from shortest to longest. Not to be confused with the sunshine hours in the table above, which count clear skies. In June there are 15h54 of daylight, in December 8h30, a difference of 7h24.

8h53Jan
10h12Feb
11h45Mar
13h33Apr
15h04May
15h54Jun
15h33Jul
14h13Aug
12h29Sep
10h46Oct
9h15Nov
8h30Dec

Calculated for the latitude of the reference point "Les Machines de l'île" (47.20°). Values on the 15th of each month, local solar time.

What to do in Nantes, month by month

ActivityJanFebMarAprMayJunJulAugSepOctNovDec
Sightseeing & walks
Long days
Events111121

EventsLa Folle JournéeJanuary to FebruaryHellfestJuneLe Voyage à NantesJuly to AugustLes Rendez-vous de l'ErdreAugust to SeptemberDetails ↓

favourablewith compromisesunfavourable

Grid derived from the records (temperature, rainfall), not from an opinion.

What's on in Nantes, month by month?

What comes back every year, and when. One of these events fills the hotels and pushes prices up: something to aim for or to avoid, depending on what you want.

Travelling off-peak

Month by month, in detail

January

Not recommended
9°4° at night
  • 100 mm · 14 d
  • 4.6 h

Low season, lower prices

February

Not recommended
11°5° at night
  • 72 mm · 11 d
  • 6.1 h

Low season, lower prices

March

Not recommended
13°6° at night
  • 81 mm · 12 d
  • 7.9 h

Low season, lower prices

April

Fair
16°8° at night
  • 63 mm · 9 d
  • 9.9 h

Low season, lower prices

May

Recommended
19°11° at night
  • 65 mm · 12 d
  • 10.9 h

Busy, without the crush

June

Recommended
23°14° at night
  • 74 mm · 11 d
  • 11.7 h

High season, book early

July

Recommended
24°15° at night
  • 49 mm · 9 d
  • 12.2 h

High season, book early

August

Recommended
25°16° at night
  • 47 mm · 9 d
  • 11.4 h

High season, book early

September

Recommended
23°14° at night
  • 68 mm · 12 d
  • 9.7 h

Busy, without the crush

October

Fair
18°11° at night
  • 146 mm · 14 d
  • 7.2 h

Low season, lower prices

November

Not recommended
13°7° at night
  • 82 mm · 10 d
  • 5.8 h

Low season, lower prices

December

Not recommended
10°5° at night
  • 109 mm · 15 d
  • 4.5 h

Quiet, then the holidays

Read the twelve months in detail

January. Cool: 9 °C at best, 4 °C at night. A very wet month, 100 mm of rain over 14 days. Sunshine gets scarcer (4.6 h a day). Low season: fewer people, lower prices.

February. Cool: 11 °C at best, 5 °C at night. Expect 11 days of rain in the month (72 mm). Expect 6.1 h of sunshine a day. Low season: fewer people, lower prices.

March. Cool: 13 °C at best, 6 °C at night. Expect 12 days of rain in the month (81 mm). Expect 7.9 h of sunshine a day. Low season: fewer people, lower prices.

April. Cool: 16 °C at best, 8 °C at night. Expect 9 days of rain in the month (63 mm). Plenty of sunshine: 9.9 h a day on average. Low season: fewer people, lower prices.

May. Mild, 19 °C in the afternoon and 11 °C early in the morning. Expect 12 days of rain in the month (65 mm). Plenty of sunshine: 10.9 h a day on average. Busy season, without the crush.

June. Mild, 23 °C in the afternoon and 14 °C early in the morning. Expect 11 days of rain in the month (74 mm). Plenty of sunshine: 11.7 h a day on average. High season: book early.

July. Mild, 24 °C in the afternoon and 15 °C early in the morning. Expect 9 days of rain in the month (49 mm). Plenty of sunshine: 12.2 h a day on average. High season: book early.

August. 25 °C in the afternoon and 16 °C at night. Expect 9 days of rain in the month (47 mm). Plenty of sunshine: 11.4 h a day on average. High season: book early.

September. Mild, 23 °C in the afternoon and 14 °C early in the morning. Expect 12 days of rain in the month (68 mm). Plenty of sunshine: 9.7 h a day on average. Busy season, without the crush.

October. Mild, 18 °C in the afternoon and 11 °C early in the morning. Frequent rain: 146 mm over 14 days. Expect 7.2 h of sunshine a day. Low season: fewer people, lower prices.

November. Cool: 13 °C at best, 7 °C at night. Expect 10 days of rain in the month (82 mm). Sunshine gets scarcer (5.8 h a day). Low season: fewer people, lower prices.

December. Cool: 10 °C at best, 5 °C at night. A very wet month, 109 mm of rain over 15 days. Sunshine gets scarcer (4.5 h a day). Quiet at the start of the month, then busier as the holidays approach.

Same season, other ideas

Their best time overlaps with this one: worth comparing before you book.

Frequently asked questions

When is the best time to visit Nantes?

May to September: over these months, recorded highs range from 19 to 25 °C, with 11 days of rain a month on average (2015-2024 records, Les Machines de l'île).

Which month should you avoid in Nantes?

December: it is the wettest of the months to avoid, with 109 mm over 15 days of rain on average, according to 2015-2024 records at the reference point (Les Machines de l'île).

What is the hottest month in Nantes?

August, with 25 °C on average in the afternoon and 16 °C at night. 2015-2024 records (Les Machines de l'île).

What is the coldest month in Nantes?

January, with 9 °C at best during the day and 4 °C at night. 2015-2024 records (Les Machines de l'île).

What is the driest month in Nantes?

August: 47 mm over 9 days of rain, against 146 mm in October, the wettest month.

Which month has the most sunshine in Nantes?

July, with 12.2 h of sunshine a day on average. Note that this counts clear skies, not the length of the day.

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Photos: Chabe01 / CC BY-SA 4.0 (Wikimedia Commons) · stefi123 / CC BY-SA 3.0 (Wikimedia Commons) · Michal Libertowski / Pexels · Claudia Solano / Pexels · MiklGds / CC BY-SA 4.0 (Wikimedia Commons) · Chatsam / CC BY-SA 4.0 (Wikimedia Commons) · L'oeil à deux Vanessa et cédric / Pexels