Luxembourg weather by month & the best time to visit
🇱🇺 Luxembourg · small town · oceanic / maritime climate
The best time to visit Luxembourg is September — its sunniest month (Sunshine Score 78/100), with June and July close behind. Luxembourg averages about 1,666 hours of sunshine a year. Daytime highs around 20°C / 68°F and roughly 56 mm of rain in September.
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- Sun hours / year
- 1,666
- Sunniest month
- September
- Peak score
- 78/100
- Rain / year
- 770 mm
- Snow / year
- ≈58 cm
- Midday UV at peak
- 6 (high)
- Population
- 77k
- Elevation
- 372 m

When is the best time to visit Luxembourg?
For sunshine, the best time to visit Luxembourg is September, then June and July. The dullest month is January (0/100, 67 mm of rain). The full month-by-month picture is in the table below.
How sunny is Luxembourg?
Luxembourg isn't a sunny place by world standards: about 1,666 hours of sunshine a year. 78 Sunshine Score points separate September (78) from January (0), so the month you pick matters. It is the only destination Sunshine Map tracks in Luxembourg. The year's 770 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | 2° / 36°F | -3° / 27°F | 67 mm | 0 |
| February | 0 | 4° / 39°F | -3° / 27°F | 57 mm | 1 |
| March | 0 | 8° / 46°F | 0° / 32°F | 57 mm | 2 |
| April | 40 | 14° / 57°F | 3° / 37°F | 46 mm | 4 |
| May | 63 | 18° / 64°F | 7° / 45°F | 70 mm | 5 |
| June | 76 | 22° / 72°F | 11° / 52°F | 68 mm | 5 |
| July | 76 | 24° / 75°F | 13° / 55°F | 65 mm | 6 |
| August | 75 | 24° / 75°F | 12° / 54°F | 72 mm | 5 |
| September | 78 | 20° / 68°F | 8° / 46°F | 56 mm | 3 |
| October | 38 | 14° / 57°F | 5° / 41°F | 65 mm | 2 |
| November | 0 | 7° / 45°F | 1° / 34°F | 68 mm | 1 |
| December | 0 | 3° / 37°F | -2° / 28°F | 79 mm | 0 |
See Luxembourg on the interactive sunshine globe →
Nearby places for sunshine
- Saarbrücken Germany · 79 km · best in Sep · 1,664 h sun/yr
- Köln (Cologne) Germany · 153 km · best in Sep · 1,545 h sun/yr
- Strasbourg France · 159 km · best in Sep · 1,800 h sun/yr
- Karlsruhe Germany · 165 km · best in Sep · 1,776 h sun/yr
- Frankfurt am Main Germany · 174 km · best in Sep · 1,516 h sun/yr
- Brussels Belgium · 188 km · best in Sep · 1,609 h sun/yr
Nearest destinations
- Metz France · 72 km · 1,802 h sun/yr · best in Sep
- Liège Belgium · 125 km · 1,608 h sun/yr · best in Sep
- Maastricht Netherlands · 146 km · 1,609 h sun/yr · best in Sep
Head-to-head
How Luxembourg compares month by month: Luxembourg vs Köln (Cologne) · Luxembourg vs Saarbrücken · Luxembourg vs Strasbourg · all comparisons
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