Winter
Dec → Feb9 to 11°
nights 5 to 7°
- 15 rainy days · 87 mm
- 4.9 h of sun
- sea 10°
When is the best time to visit Brittany?
- Jan9°not recommended
- Feb11°not recommended
- Mar12°not recommended
- Apr14°fair
- May16°recommended
- Jun19°recommended
- Jul21°recommended
- Aug21°recommended
- Sep20°recommended
- Oct17°fair
- Nov13°not recommended
- Dec10°not recommended
RecommendedFairNot recommended· afternoon temperature
The weather in Brittany, month by month
The table of records, month by month
| Month | High | Low | Sunshine | Rainfall | Rainy days | Sea | Best |
|---|---|---|---|---|---|---|---|
| January | 9° | 5° | 4.5 h | 80 mm | 16 d | 9° | |
| February | 11° | 6° | 6 h | 62 mm | 12 d | 9° | |
| March | 12° | 7° | 7.8 h | 69 mm | 16 d | 9° | |
| April | 14° | 8° | 10.3 h | 49 mm | 10 d | 11° | |
| May | 16° | 11° | 11.3 h | 53 mm | 12 d | 14° | ✓ |
| June | 19° | 14° | 11.9 h | 76 mm | 12 d | 18° | ✓ |
| July | 21° | 16° | 12.1 h | 65 mm | 10 d | 19° | ✓ |
| August | 21° | 17° | 10.8 h | 63 mm | 11 d | 20° | ✓ |
| September | 20° | 15° | 9.4 h | 86 mm | 12 d | 19° | ✓ |
| October | 17° | 12° | 7.2 h | 106 mm | 15 d | 17° | |
| November | 13° | 9° | 5.4 h | 95 mm | 14 d | 14° | |
| December | 10° | 7° | 4.3 h | 120 mm | 17 d | 11° |
The four seasons in Brittany, in figures
What the 2015-2024 records (Saint-Malo) show, season by season, to compare at a glance instead of reading twelve rows of a table.
Spring
Mar → May12 to 16°
nights 7 to 11°
- 13 rainy days · 57 mm
- 9.8 h of sun
- sea 11°
Summer
Jun → Aug19 to 21°
nights 14 to 17°
- 11 rainy days · 68 mm
- 11.6 h of sun
- sea 19°
Autumn
Sep → Nov13 to 20°
nights 9 to 15°
- 14 rainy days · 96 mm
- 7.3 h of sun
- sea 17°
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 Brittany, 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 16h07 of daylight, in December 8h18, a difference of 7h49.
8h42Jan
10h06Feb
11h44Mar
13h37Apr
15h13May
16h07Jun
15h45Jul
14h20Aug
12h30Sep
10h42Oct
9h06Nov
8h18Dec
Calculated for the latitude of the reference point "Saint-Malo" (48.65°). Values on the 15th of each month, local solar time.
What to do in Brittany, month by month
What to see and do
EventsVieilles Charrues FestivalJulyPardon of Sainte-Anne-d'AurayJulyLorient Interceltic FestivalAugustFête des Filets BleusAugustDetails ↓
favourablewith compromisesunfavourable
- Towns & culture: February, April, May, June, July, August, September
- Long days: May, June, July, August
Grid derived from the records (temperature, rainfall, sea), not from an opinion.
What's on in Brittany, month by month?
What comes back every year, and when. These events fill the hotels and push prices up: something to aim for or to avoid, depending on what you want.
- JulyVieilles Charrues Festival big crowds
France's biggest contemporary music festival sets up its stages in the meadows of Carhaix, over four days.
- JulyPardon of Sainte-Anne-d'Auray
Thousands of pilgrims make their way to the basilica in Morbihan for the torchlight procession and the open-air mass.
- AugustLorient Interceltic Festival big crowds
Ten days of bagadoù (Breton pipe bands), bagpipes and Celtic dancing in the streets of Lorient and in the stands of the Moustoir.
- AugustFête des Filets Bleus
Concarneau brings out its embroidered headdresses and its Celtic dance circles for a festival born of the decline of sardine fishing.
Travelling off-peak
Month by month, in detail
January
Not recommended9°5° at night
- 80 mm · 16 d
- 4.5 h
- sea 9°
Low season, lower prices
February
Not recommended11°6° at night
- 62 mm · 12 d
- 6 h
- sea 9°
Low season, lower prices
March
Not recommended12°7° at night
- 69 mm · 16 d
- 7.8 h
- sea 9°
Low season, lower prices
April
Fair14°8° at night
- 49 mm · 10 d
- 10.3 h
- sea 11°
Low season, lower prices
May
Recommended16°11° at night
- 53 mm · 12 d
- 11.3 h
- sea 14°
Busy, without the crush
June
Recommended19°14° at night
- 76 mm · 12 d
- 11.9 h
- sea 18°
Busy, without the crush
July
Recommended21°16° at night
- 65 mm · 10 d
- 12.1 h
- sea 19°
High season, book early
August
Recommended21°17° at night
- 63 mm · 11 d
- 10.8 h
- sea 20°
High season, book early
September
Recommended20°15° at night
- 86 mm · 12 d
- 9.4 h
- sea 19°
Busy, without the crush
October
Fair17°12° at night
- 106 mm · 15 d
- 7.2 h
- sea 17°
Low season, lower prices
November
Not recommended13°9° at night
- 95 mm · 14 d
- 5.4 h
- sea 14°
Low season, lower prices
December
Not recommended10°7° at night
- 120 mm · 17 d
- 4.3 h
- sea 11°
Quiet, then the holidays
Read the twelve months in detail
January. Cool: 9 °C at best, 5 °C at night. A very wet month, 80 mm of rain over 16 days. Sunshine gets scarcer (4.5 h a day). Sea at 9 °C, too cold to swim. Low season: fewer people, lower prices.
February. Cool: 11 °C at best, 6 °C at night. Expect 12 days of rain in the month (62 mm). Expect 6 h of sunshine a day. Sea at 9 °C, too cold to swim. Low season: fewer people, lower prices.
March. Cool: 12 °C at best, 7 °C at night. A very wet month, 69 mm of rain over 16 days. Expect 7.8 h of sunshine a day. Sea at 9 °C, too cold to swim. Low season: fewer people, lower prices.
April. Cool: 14 °C at best, 8 °C at night. Expect 10 days of rain in the month (49 mm). Plenty of sunshine: 10.3 h a day on average. Sea at 11 °C, too cold to swim. Low season: fewer people, lower prices.
May. Cool: 16 °C at best, 11 °C at night. Expect 12 days of rain in the month (53 mm). Plenty of sunshine: 11.3 h a day on average. Sea at 14 °C, too cold to swim. Busy season, without the crush.
June. Mild, 19 °C in the afternoon and 14 °C early in the morning. Expect 12 days of rain in the month (76 mm). Plenty of sunshine: 11.9 h a day on average. Cool sea (18 °C), for the brave. Busy season, without the crush.
July. Mild, 21 °C in the afternoon and 16 °C early in the morning. Expect 10 days of rain in the month (65 mm). Plenty of sunshine: 12.1 h a day on average. Cool sea (19 °C), for the brave. High season: book early.
August. Mild, 21 °C in the afternoon and 17 °C early in the morning. Expect 11 days of rain in the month (63 mm). Plenty of sunshine: 10.8 h a day on average. Cool sea (20 °C), for the brave. High season: book early.
September. Mild, 20 °C in the afternoon and 15 °C early in the morning. Expect 12 days of rain in the month (86 mm). Plenty of sunshine: 9.4 h a day on average. Cool sea (19 °C), for the brave. Busy season, without the crush.
October. Cool: 17 °C at best, 12 °C at night. Frequent rain: 106 mm over 15 days. Expect 7.2 h of sunshine a day. Sea at 17 °C, too cold to swim. Low season: fewer people, lower prices.
November. Cool: 13 °C at best, 9 °C at night. A very wet month, 95 mm of rain over 14 days. Sunshine gets scarcer (5.4 h a day). Sea at 14 °C, too cold to swim. Low season: fewer people, lower prices.
December. Cool: 10 °C at best, 7 °C at night. A very wet month, 120 mm of rain over 17 days. Sunshine gets scarcer (4.3 h a day). Sea at 11 °C, too cold to swim. 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 Brittany?
May to September: over these months, recorded highs range from 16 to 21 °C, with 11 days of rain a month on average (2015-2024 records, Saint-Malo).
Which month should you avoid in Brittany?
December: it is the wettest of the months to avoid, with 120 mm over 17 days of rain on average, according to 2015-2024 records at the reference point (Saint-Malo).
What is the hottest month in Brittany?
July, with 21 °C on average in the afternoon and 16 °C at night. 2015-2024 records (Saint-Malo).
What is the coldest month in Brittany?
January, with 9 °C at best during the day and 5 °C at night. 2015-2024 records (Saint-Malo).
What is the driest month in Brittany?
April: 49 mm over 10 days of rain, against 120 mm in December, the wettest month.
Which month has the most sunshine in Brittany?
July, with 12.1 h of sunshine a day on average. Note that this counts clear skies, not the length of the day.
When can you swim in Brittany?
The water stays cool all year (warmest 20 °C in August, measured in 2023-2024 on the nearest coast, Saint-Malo): swimming is for the brave.
Plan this trip
📒 The free printable Brittany guide: itinerary, map, where to sleep→
🧭 When to visit France: the country overview→
🗓️ Best time to visit: all our destinations→
Compare with other destinations
Photos: Enrique / Pexels · Jeffrey Brandjes / Pexels · Thérèse Gaigé / CC BY-SA 4.0 (Wikimedia Commons) · dyonis / CC BY 2.0 (Wikimedia Commons) · Bingqian Li / Pexels