Winter
Dec → Feb7 to 10°
nights -1 to 0°
- 11 rainy days · 50 mm
When is the best time to visit the Monts du Lyonnais?
- Jan7°not recommended
- Feb10°not recommended
- Mar13°not recommended
- Apr16°fair
- May19°recommended
- Jun25°recommended
- Jul28°recommended
- Aug27°recommended
- Sep23°recommended
- Oct18°fair
- Nov12°not recommended
- Dec9°not recommended
RecommendedFairNot recommended· afternoon temperature
The weather in the Monts du Lyonnais, month by month
The table of records, month by month
| Month | High | Low | Rainfall | Rainy days | Best |
|---|---|---|---|---|---|
| January | 7° | -1° | 51 mm | 11 d | |
| February | 10° | 0° | 33 mm | 8 d | |
| March | 13° | 1° | 56 mm | 10 d | |
| April | 16° | 3° | 58 mm | 9 d | |
| May | 19° | 7° | 82 mm | 11 d | ✓ |
| June | 25° | 12° | 94 mm | 10 d | ✓ |
| July | 28° | 13° | 50 mm | 7 d | ✓ |
| August | 27° | 13° | 64 mm | 6 d | ✓ |
| September | 23° | 10° | 66 mm | 8 d | ✓ |
| October | 18° | 7° | 90 mm | 9 d | |
| November | 12° | 3° | 69 mm | 10 d | |
| December | 9° | 0° | 67 mm | 13 d |
The four seasons in the Monts du Lyonnais, in figures
What the 2015-2024 records (Saint-Symphorien-sur-Coise) show, season by season, to compare at a glance instead of reading twelve rows of a table.
Spring
Mar → May13 to 19°
nights 1 to 7°
- 10 rainy days · 65 mm
Summer
Jun → Aug25 to 28°
nights 12 to 13°
- 8 rainy days · 69 mm
Autumn
Sep → Nov12 to 23°
nights 3 to 10°
- 9 rainy days · 75 mm
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 the Monts du Lyonnais, 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 15h41 of daylight, in December 8h42, a difference of 6h58.
9h04Jan
10h18Feb
11h46Mar
13h28Apr
14h54May
15h41Jun
15h21Jul
14h06Aug
12h28Sep
10h50Oct
9h25Nov
8h42Dec
Calculated for the latitude of the reference point "Saint-Symphorien-sur-Coise" (45.63°). Values on the 15th of each month, local solar time.
What to do in the Monts du Lyonnais, month by month
| Activity | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hiking | ||||||||||||
| Towns & culture | ||||||||||||
| Long days |
favourablewith compromisesunfavourable
- Hiking: April, July, August, September, October
- Towns & culture: February, March, April, May, June, July, August, September, October, November
- Long days: May, June, July, August
Grid derived from the records (temperature, rainfall), not from an opinion.
Travelling off-peak
Month by month, in detail
January
Not recommended7°-1° at night
- 51 mm · 11 d
Low season, lower prices
February
Not recommended10°0° at night
- 33 mm · 8 d
Low season, lower prices
March
Not recommended13°1° at night
- 56 mm · 10 d
Low season, lower prices
April
Fair16°3° at night
- 58 mm · 9 d
Low season, lower prices
May
Recommended19°7° at night
- 82 mm · 11 d
Busy, without the crush
June
Recommended25°12° at night
- 94 mm · 10 d
Busy, without the crush
July
Recommended28°13° at night
- 50 mm · 7 d
High season, book early
August
Recommended27°13° at night
- 64 mm · 6 d
High season, book early
September
Recommended23°10° at night
- 66 mm · 8 d
Busy, without the crush
October
Fair18°7° at night
- 90 mm · 9 d
Low season, lower prices
November
Not recommended12°3° at night
- 69 mm · 10 d
Low season, lower prices
December
Not recommended9°0° at night
- 67 mm · 13 d
Quiet, then the holidays
Read the twelve months in detail
January. Deep winter: 7 °C at the warmest of the day, -1 °C at night. Expect 11 days of rain in the month (51 mm). Low season: fewer people, lower prices.
February. Cool: 10 °C at best, 0 °C at night. Expect 8 days of rain in the month (33 mm). Low season: fewer people, lower prices.
March. Cool: 13 °C at best, 1 °C at night. Expect 10 days of rain in the month (56 mm). Low season: fewer people, lower prices.
April. Cool: 16 °C at best, 3 °C at night. Expect 9 days of rain in the month (58 mm). Low season: fewer people, lower prices.
May. Mild, 19 °C in the afternoon and 7 °C early in the morning. Expect 11 days of rain in the month (82 mm). Busy season, without the crush.
June. 25 °C in the afternoon and 12 °C at night. Expect 10 days of rain in the month (94 mm). Busy season, without the crush.
July. 28 °C in the afternoon and 13 °C at night. Rain stays light: 50 mm over 7 days. High season: book early.
August. 27 °C in the afternoon and 13 °C at night. Rain stays light: 64 mm over 6 days. High season: book early.
September. Mild, 23 °C in the afternoon and 10 °C early in the morning. Expect 8 days of rain in the month (66 mm). Busy season, without the crush.
October. Mild, 18 °C in the afternoon and 7 °C early in the morning. Expect 9 days of rain in the month (90 mm). Low season: fewer people, lower prices.
November. Cool: 12 °C at best, 3 °C at night. Expect 10 days of rain in the month (69 mm). Low season: fewer people, lower prices.
December. Cool: 9 °C at best, 0 °C at night. Expect 13 days of rain in the month (67 mm). 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.
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Frequently asked questions
When is the best time to visit the Monts du Lyonnais?
May to September: over these months, recorded highs range from 19 to 28 °C, with 8 days of rain a month on average (2015-2024 records, Saint-Symphorien-sur-Coise).
Which month should you avoid in the Monts du Lyonnais?
November: it is the wettest of the months to avoid, with 69 mm over 10 days of rain on average, according to 2015-2024 records at the reference point (Saint-Symphorien-sur-Coise).
What is the hottest month in the Monts du Lyonnais?
July, with 28 °C on average in the afternoon and 13 °C at night. 2015-2024 records (Saint-Symphorien-sur-Coise).
What is the coldest month in the Monts du Lyonnais?
January, with 7 °C at best during the day and -1 °C at night. 2015-2024 records (Saint-Symphorien-sur-Coise).
What is the driest month in the Monts du Lyonnais?
February: 33 mm over 8 days of rain, against 94 mm in June, the wettest month.
Does it get cold at night in the Monts du Lyonnais?
The gap between day and night reaches 15 °C in July: 28 °C in the afternoon, 13 °C at dawn. Pack an extra layer, even in high season.
When is the best time to hike in the Monts du Lyonnais?
April, July, August, September, October: highs between 12 and 29 °C and no more than 9 days of rain a month according to 2015-2024 records (Saint-Symphorien-sur-Coise), the safest windows for walking.
Plan this trip
📒 The free printable Monts du Lyonnais 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: Klovovi / CC BY 2.0 (Wikimedia Commons) · Le sixième rêve / Pexels · verod1 / CC BY-SA 4.0 (Wikimedia Commons)