Karlsruhe vs Frankfurt am Main: which is sunnier?
🇩🇪 Germany vs 🇩🇪 Germany · 143 km apart · long-term climate normals (NASA POWER, 2001–2020)
Karlsruhe is the sunnier overall: about 1,776 hours of sunshine a year to Frankfurt am Main's 1,516. Karlsruhe has the higher Sunshine Score in 2 of 12 months; the other 10 are within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.


At a glance
| Karlsruhe | Frankfurt am Main | |
|---|---|---|
| Sunshine hours / year | 1,776 | 1,516 |
| Sunniest month | September (79/100) | September (79/100) |
| Nov–Feb average score | 2/100 | 2/100 |
| Jun–Aug average score | 76/100 | 76/100 |
| Rain / year | 739 mm | 670 mm |
| Peak midday UV | 5 (moderate) | 5 (moderate) |
Karlsruhe vs Frankfurt am Main month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Karlsruhe | Frankfurt am Main | Karlsruhe | Frankfurt am Main | Karlsruhe | Frankfurt am Main | |
| January | 0 | 0 | 4° | 4° | 61 | 57 |
| February | 0 | 0 | 6° | 5° | 48 | 45 |
| March | 20 | 13 | 11° | 10° | 52 | 47 |
| April | 61 | 53 | 17° | 16° | 44 | 41 |
| May | 75 | 74 | 21° | 20° | 74 | 71 |
| June | 77 | 76 | 26° | 25° | 66 | 59 |
| July | 76 | 75 | 28° | 27° | 71 | 66 |
| August | 76 | 76 | 27° | 27° | 73 | 64 |
| September | 79 | 79 | 22° | 22° | 53 | 46 |
| October | 51 | 52 | 16° | 16° | 64 | 54 |
| November | 6 | 6 | 9° | 9° | 61 | 56 |
| December | 0 | 0 | 5° | 4° | 72 | 64 |
The sunnier month by month: Jan even · Feb even · Mar Karlsruhe · Apr Karlsruhe · May even · Jun even · Jul even · Aug even · Sep even · Oct even · Nov even · Dec even.
When to pick which
- November–February: too close to call — Karlsruhe averages 2/100, Frankfurt am Main 2/100. Daytime highs are similar (6°C vs 6°C). See the winter sun ranking.
- March–May: Karlsruhe (average score 52/100 vs 47). Daytime highs are similar (16°C vs 15°C).
- June–August: too close to call — Karlsruhe averages 76/100, Frankfurt am Main 76/100. Daytime highs are similar (27°C vs 26°C).
- September–October: too close to call — Karlsruhe averages 65/100, Frankfurt am Main 66/100. Daytime highs are similar (19°C vs 19°C).
Full month-by-month guides: Karlsruhe weather by month · Frankfurt am Main weather by month · Best time to visit Germany.
More comparisons: Karlsruhe vs Stuttgart · Karlsruhe vs Saarbrücken · Karlsruhe vs Strasbourg · Frankfurt am Main vs Köln (Cologne) · Frankfurt am Main vs Saarbrücken · all head-to-heads