Winter
Dec → Feb9 to 11°
nights 3 to 5°
- 13 rainy days · 75 mm
- 4.8 h of sun
When is the best time to visit Rennes?
- Jan9°not recommended
- Feb11°not recommended
- Mar13°not recommended
- Apr16°fair
- May19°recommended
- Jun22°recommended
- Jul24°recommended
- Aug24°fair
- Sep22°recommended
- Oct18°fair
- Nov13°not recommended
- Dec10°not recommended
RecommendedFairNot recommended· afternoon temperature
The weather in Rennes, month by month
The table of records, month by month
| Month | High | Low | Sunshine | Rainfall | Rainy days | Best |
|---|---|---|---|---|---|---|
| January | 9° | 3° | 4.3 h | 75 mm | 13 d | |
| February | 11° | 5° | 5.7 h | 58 mm | 11 d | |
| March | 13° | 5° | 7.4 h | 70 mm | 14 d | |
| April | 16° | 6° | 10 h | 55 mm | 10 d | |
| May | 19° | 10° | 10.7 h | 63 mm | 12 d | ✓ |
| June | 22° | 13° | 11.5 h | 86 mm | 12 d | ✓ |
| July | 24° | 14° | 11.7 h | 51 mm | 10 d | ✓ |
| August | 24° | 15° | 10.8 h | 54 mm | 10 d | |
| September | 22° | 13° | 9.3 h | 70 mm | 10 d | ✓ |
| October | 18° | 10° | 7 h | 115 mm | 15 d | |
| November | 13° | 7° | 5.4 h | 73 mm | 12 d | |
| December | 10° | 5° | 4.3 h | 92 mm | 14 d |
The four seasons in Rennes, in figures
What the 2015-2024 records (Place des Lices) show, season by season, to compare at a glance instead of reading twelve rows of a table.
Spring
Mar → May13 to 19°
nights 5 to 10°
- 12 rainy days · 63 mm
- 9.4 h of sun
Summer
Jun → Aug22 to 24°
nights 13 to 15°
- 11 rainy days · 64 mm
- 11.3 h of sun
Autumn
Sep → Nov13 to 22°
nights 7 to 13°
- 12 rainy days · 86 mm
- 7.2 h of sun
Book early for May to July and 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 Rennes, 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 16h02 of daylight, in December 8h22, a difference of 7h40.
8h46Jan
10h08Feb
11h45Mar
13h36Apr
15h10May
16h02Jun
15h41Jul
14h18Aug
12h30Sep
10h43Oct
9h09Nov
8h22Dec
Calculated for the latitude of the reference point "Place des Lices" (48.11°). Values on the 15th of each month, local solar time.
What to do in Rennes, month by month
What to see and do
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EventsTravellingFebruaryLes Tombées de la NuitJulyYaouankNovemberLes Trans MusicalesDecemberDetails ↓
favourablewith compromisesunfavourable
- Sightseeing & walks: February, April, May, June, July, August, September, November
- Long days: May, June, July, August
Grid derived from the records (temperature, rainfall), not from an opinion.
What's on in Rennes, month by month?
What comes back every year, and when. Exact dates change from year to year, so check them before you book.
- FebruaryTravelling
The film festival explores a different city each winter, with screenings in Rennes cinemas throughout February.
- JulyLes Tombées de la Nuit
The festival scatters street shows, performances and readings around the centre for a few days in July, largely free.
- NovemberYaouank
The biggest fest-noz of the year fills the exhibition centre with Breton dancers, on a Saturday in November.
- DecemberLes Trans Musicales
The new music festival takes over the halls of the exhibition centre and a dozen venues around town, in early December.
Travelling off-peak
Month by month, in detail
January
Not recommended9°3° at night
- 75 mm · 13 d
- 4.3 h
Low season, lower prices
February
Not recommended11°5° at night
- 58 mm · 11 d
- 5.7 h
Low season, lower prices
March
Not recommended13°5° at night
- 70 mm · 14 d
- 7.4 h
Low season, lower prices
April
Fair16°6° at night
- 55 mm · 10 d
- 10 h
Low season, lower prices
May
Recommended19°10° at night
- 63 mm · 12 d
- 10.7 h
Busy, without the crush
June
Recommended22°13° at night
- 86 mm · 12 d
- 11.5 h
Busy, without the crush
July
Recommended24°14° at night
- 51 mm · 10 d
- 11.7 h
High season, book early
August
Fair24°15° at night
- 54 mm · 10 d
- 10.8 h
Busy, without the crush
September
Recommended22°13° at night
- 70 mm · 10 d
- 9.3 h
Busy, without the crush
October
Fair18°10° at night
- 115 mm · 15 d
- 7 h
Low season, lower prices
November
Not recommended13°7° at night
- 73 mm · 12 d
- 5.4 h
Low season, lower prices
December
Not recommended10°5° at night
- 92 mm · 14 d
- 4.3 h
Quiet, then the holidays
Read the twelve months in detail
January. Cool: 9 °C at best, 3 °C at night. Expect 13 days of rain in the month (75 mm). Sunshine gets scarcer (4.3 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 (58 mm). Sunshine gets scarcer (5.7 h a day). Low season: fewer people, lower prices.
March. Cool: 13 °C at best, 5 °C at night. A very wet month, 70 mm of rain over 14 days. Expect 7.4 h of sunshine a day. Low season: fewer people, lower prices.
April. Cool: 16 °C at best, 6 °C at night. Expect 10 days of rain in the month (55 mm). Plenty of sunshine: 10 h a day on average. Low season: fewer people, lower prices.
May. Mild, 19 °C in the afternoon and 10 °C early in the morning. Expect 12 days of rain in the month (63 mm). Plenty of sunshine: 10.7 h a day on average. Busy season, without the crush.
June. Mild, 22 °C in the afternoon and 13 °C early in the morning. Expect 12 days of rain in the month (86 mm). Plenty of sunshine: 11.5 h a day on average. Busy season, without the crush.
July. Mild, 24 °C in the afternoon and 14 °C early in the morning. Expect 10 days of rain in the month (51 mm). Plenty of sunshine: 11.7 h a day on average. High season: book early.
August. Mild, 24 °C in the afternoon and 15 °C early in the morning. Expect 10 days of rain in the month (54 mm). Plenty of sunshine: 10.8 h a day on average. Busy season, without the crush.
September. Mild, 22 °C in the afternoon and 13 °C early in the morning. Expect 10 days of rain in the month (70 mm). Plenty of sunshine: 9.3 h a day on average. Busy season, without the crush.
October. Mild, 18 °C in the afternoon and 10 °C early in the morning. Frequent rain: 115 mm over 15 days. Expect 7 h of sunshine a day. Low season: fewer people, lower prices.
November. Cool: 13 °C at best, 7 °C at night. Expect 12 days of rain in the month (73 mm). Sunshine gets scarcer (5.4 h a day). Low season: fewer people, lower prices.
December. Cool: 10 °C at best, 5 °C at night. A very wet month, 92 mm of rain over 14 days. Sunshine gets scarcer (4.3 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 Rennes?
May to July and September: over these months, recorded highs range from 19 to 24 °C, with 11 days of rain a month on average (2015-2024 records, Place des Lices).
Which month should you avoid in Rennes?
December: it is the wettest of the months to avoid, with 92 mm over 14 days of rain on average, according to 2015-2024 records at the reference point (Place des Lices).
What is the hottest month in Rennes?
July, with 24 °C on average in the afternoon and 14 °C at night. 2015-2024 records (Place des Lices).
What is the coldest month in Rennes?
January, with 9 °C at best during the day and 3 °C at night. 2015-2024 records (Place des Lices).
What is the driest month in Rennes?
July: 51 mm over 10 days of rain, against 115 mm in October, the wettest month.
Which month has the most sunshine in Rennes?
July, with 11.7 h of sunshine a day on average. Note that this counts clear skies, not the length of the day.
Plan this trip
📒 The free printable Rennes guide: itinerary, map, where to sleep→
🧭 When to visit Brittany: the country overview→
🗓️ Best time to visit: all our destinations→
Compare with other destinations
Photos: chisloup / CC BY 3.0 (Wikimedia Commons) · Fab5669 / CC0 (Wikimedia Commons) · Morio60 / CC BY-SA 2.0 (Wikimedia Commons) · Matteo Angeloni / Pexels · Claudia Solano / Pexels · XIIIfromTOKYO / CC BY-SA 3.0 (Wikimedia Commons) · Laemito / CC BY-SA 4.0 (Wikimedia Commons) · Zairon / CC BY-SA 4.0 (Wikimedia Commons)