Lyon vs Grenoble: which is sunnier?
🇫🇷 France vs 🇫🇷 France · 44 km apart · long-term climate normals (NASA POWER, 2001–2020)
Lyon and Grenoble are virtually tied for annual sunshine — about 2,190 vs 2,189 hours a year. Lyon has the higher Sunshine Score in 3 of 12 months; the other 9 are within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Lyon | Grenoble | |
|---|---|---|
| Sunshine hours / year | 2,190 | 2,189 |
| Sunniest month | July (80/100) | September (79/100) |
| Nov–Feb average score | 5/100 | 5/100 |
| Jun–Aug average score | 79/100 | 78/100 |
| Rain / year | 787 mm | 949 mm |
| Peak midday UV | 7 (high) | 7 (high) |
Lyon vs Grenoble month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Lyon | Grenoble | Lyon | Grenoble | Lyon | Grenoble | |
| January | 0 | 0 | 6° | 6° | 54 | 79 |
| February | 0 | 0 | 8° | 7° | 46 | 62 |
| March | 27 | 26 | 12° | 12° | 54 | 74 |
| April | 60 | 53 | 17° | 16° | 61 | 69 |
| May | 77 | 74 | 21° | 20° | 82 | 97 |
| June | 79 | 77 | 25° | 24° | 67 | 77 |
| July | 80 | 78 | 28° | 26° | 65 | 72 |
| August | 79 | 78 | 27° | 26° | 66 | 76 |
| September | 80 | 79 | 23° | 22° | 62 | 71 |
| October | 64 | 56 | 18° | 17° | 82 | 89 |
| November | 19 | 18 | 11° | 11° | 85 | 97 |
| December | 0 | 0 | 7° | 6° | 63 | 86 |
The sunnier month by month: Jan even · Feb even · Mar even · Apr Lyon · May Lyon · Jun even · Jul even · Aug even · Sep even · Oct Lyon · Nov even · Dec even.
When to pick which
- November–February: too close to call — Lyon averages 5/100, Grenoble 5/100. Daytime highs are similar (8°C vs 8°C). See the winter sun ranking.
- March–May: Lyon (average score 55/100 vs 51). Daytime highs are similar (17°C vs 16°C).
- June–August: too close to call — Lyon averages 79/100, Grenoble 78/100. Lyon is the warmer, around 27°C daytime highs vs 25°C.
- September–October: Lyon (average score 72/100 vs 68). Daytime highs are similar (21°C vs 20°C).
Full month-by-month guides: Lyon weather by month · Grenoble weather by month · Best time to visit France.
More comparisons: Lyon vs Turin · Lyon vs Geneva · Grenoble vs Turin · Grenoble vs Geneva · all head-to-heads