Winter
Dec → Feb4 to 6°
nights -4 to -3°
- 13 rainy days · 170 mm
When is the best time to visit Savoie and Mont Blanc?
- Jan4°recommended
- Feb6°recommended
- Mar8°recommended
- Apr12°fair
- May15°fair
- Jun20°recommended
- Jul23°recommended
- Aug23°recommended
- Sep18°recommended
- Oct15°fair
- Nov9°fair
- Dec5°recommended
RecommendedFairNot recommended· afternoon temperature
The weather in Savoie and Mont Blanc, month by month
The table of records, month by month
| Month | High | Low | Rainfall | Rainy days | Best |
|---|---|---|---|---|---|
| January | 4° | -4° | 186 mm | 14 d | ✓ |
| February | 6° | -3° | 130 mm | 12 d | ✓ |
| March | 8° | -1° | 160 mm | 14 d | ✓ |
| April | 12° | 2° | 129 mm | 14 d | |
| May | 15° | 6° | 208 mm | 19 d | |
| June | 20° | 11° | 146 mm | 18 d | ✓ |
| July | 23° | 13° | 118 mm | 14 d | ✓ |
| August | 23° | 13° | 112 mm | 13 d | ✓ |
| September | 18° | 9° | 113 mm | 13 d | ✓ |
| October | 15° | 6° | 122 mm | 12 d | |
| November | 9° | 0° | 157 mm | 14 d | |
| December | 5° | -3° | 193 mm | 14 d | ✓ |
The four seasons in Savoie and Mont Blanc, in figures
What the 2015-2024 records (Chamonix (valley)) show, season by season, to compare at a glance instead of reading twelve rows of a table.
Spring
Mar → May8 to 15°
nights -1 to 6°
- 16 rainy days · 166 mm
Summer
Jun → Aug20 to 23°
nights 11 to 13°
- 15 rainy days · 125 mm
Autumn
Sep → Nov9 to 18°
nights 0 to 9°
- 13 rainy days · 131 mm
Book early for December to March and June 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 Savoie and Mont Blanc, 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 15h43 of daylight, in December 8h40, a difference of 7h03.
9h02Jan
10h17Feb
11h46Mar
13h29Apr
14h55May
15h43Jun
15h23Jul
14h08Aug
12h28Sep
10h49Oct
9h23Nov
8h40Dec
Calculated for the latitude of the reference point "Chamonix (valley)" (45.92°). Values on the 15th of each month, local solar time.
What to do in Savoie and Mont Blanc, month by month
EventsChamonix Guides' FestivalAugustUltra-Trail du Mont-BlancAugust to SeptemberVal d'Isère Ski World CupDecemberDetails ↓
favourablewith compromisesunfavourable
- Towns & culture: October
- Long days: May, June, July, August
Grid derived from the records (temperature, rainfall), not from an opinion.
What's on in Savoie and Mont Blanc, 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.
- AugustChamonix Guides' Festival
In mid-August, the Compagnie des Guides parades through Chamonix, with the blessing of the new guides and mountain rescue demonstrations.
- August to SeptemberUltra-Trail du Mont-Blanc big crowds
In late August, runners set off from Chamonix on a loop around the massif; for a week the valley lives to the rhythm of runners passing through and crossing the finish line.
- DecemberVal d'Isère Ski World Cup
In December, the Face de Bellevarde opens the Alpine Ski World Cup season, over a weekend of races.
Travelling off-peak
Month by month, in detail
January
Recommended4°-4° at night
- 186 mm · 14 d
Busy, without the crush
February
Recommended6°-3° at night
- 130 mm · 12 d
Busy, without the crush
March
Recommended8°-1° at night
- 160 mm · 14 d
Busy, without the crush
April
Fair12°2° at night
- 129 mm · 14 d
Low season, lower prices
May
Fair15°6° at night
- 208 mm · 19 d
Low season, lower prices
June
Recommended20°11° at night
- 146 mm · 18 d
Busy, without the crush
July
Recommended23°13° at night
- 118 mm · 14 d
High season, book early
August
Recommended23°13° at night
- 112 mm · 13 d
High season, book early
September
Recommended18°9° at night
- 113 mm · 13 d
High season, book early
October
Fair15°6° at night
- 122 mm · 12 d
Low season, lower prices
November
Fair9°0° at night
- 157 mm · 14 d
Low season, lower prices
December
Recommended5°-3° at night
- 193 mm · 14 d
Busy, without the crush
Read the twelve months in detail
January. Deep winter: 4 °C at the warmest of the day, -4 °C at night. Frequent rain: 186 mm over 14 days. Busy season, without the crush.
February. Deep winter: 6 °C at the warmest of the day, -3 °C at night. Expect 12 days of rain in the month (130 mm). Busy season, without the crush.
March. Cool: 8 °C at best, -1 °C at night. Frequent rain: 160 mm over 14 days. Busy season, without the crush.
April. Cool: 12 °C at best, 2 °C at night. Frequent rain: 129 mm over 14 days. Low season: fewer people, lower prices.
May. Cool: 15 °C at best, 6 °C at night. Frequent rain: 208 mm over 19 days. Low season: fewer people, lower prices.
June. Mild, 20 °C in the afternoon and 11 °C early in the morning. Frequent rain: 146 mm over 18 days. Busy season, without the crush.
July. Mild, 23 °C in the afternoon and 13 °C early in the morning. Frequent rain: 118 mm over 14 days. High season: book early.
August. Mild, 23 °C in the afternoon and 13 °C early in the morning. Expect 13 days of rain in the month (112 mm). High season: book early.
September. Mild, 18 °C in the afternoon and 9 °C early in the morning. Expect 13 days of rain in the month (113 mm). High season: book early.
October. Cool: 15 °C at best, 6 °C at night. Expect 12 days of rain in the month (122 mm). Low season: fewer people, lower prices.
November. Cool: 9 °C at best, 0 °C at night. Frequent rain: 157 mm over 14 days. Low season: fewer people, lower prices.
December. Deep winter: 5 °C at the warmest of the day, -3 °C at night. Frequent rain: 193 mm over 14 days. Busy season, without the crush.
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 Savoie and Mont Blanc?
December to March and June to September: over these months, recorded highs range from 4 to 23 °C, with 14 days of rain a month on average (2015-2024 records, Chamonix (valley)).
Which month should you avoid in Savoie and Mont Blanc?
No month is really out of bounds. The wettest is May, with 208 mm over 19 days of rain on average (2015-2024 records, Chamonix (valley)).
What is the hottest month in Savoie and Mont Blanc?
July, with 23 °C on average in the afternoon and 13 °C at night. 2015-2024 records (Chamonix (valley)).
What is the coldest month in Savoie and Mont Blanc?
January, with 4 °C at best during the day and -4 °C at night. 2015-2024 records (Chamonix (valley)).
What is the driest month in Savoie and Mont Blanc?
August: 112 mm over 13 days of rain, against 208 mm in May, the wettest month.
Plan this trip
📒 The free printable Savoie and Mont Blanc guide: itinerary, map, where to sleep→
🧭 When to visit the French Alps: the country overview→
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