14-day forecast — Luxembourg City
Updated every hour
Mon · Today · 14 Sep
Showers
22°
16°
0.4 mm
Tue · Tomorrow · 15 Sep
Sunny
26°
16°
6%
Wednesday · 16 Sep
Cloudy
18°
11°
16%
Thursday · 17 Sep
Cloudy
17°
10°
10%
Friday · 18 Sep
Cloudy
19°
11°
0.1 mm
Saturday · 19 Sep
Cloudy
19°
12°
17%
Sunday · 20 Sep
Sunny
21°
11°
5%
Monday · 21 Sep
Sunny
26°
13°
2%
Tuesday · 22 Sep
Sunny
18°
11°
5%
Wednesday · 23 Sep
Sunny
16°
7°
9%
Thursday · 24 Sep
Sunny
20°
8°
4%
Friday · 25 Sep
Sunny
18°
10°
5%
Saturday · 26 Sep
Sunny
19°
8°
2%
Sunday · 27 Sep
Sunny
21°
9°
1%
About Luxembourg City
A UNESCO-listed old town perched over deep gorges — Europe’s most underrated city break.
CountryLuxembourg
RegionLuxembourg
ContinentEurope
Time zoneEurope/Luxembourg (+02:00)
Latitude49.6116°
Longitude6.1319°
Air qualityFair (EAQI 26)
Climate in Luxembourg City in September
Averages over 8 years · best time to visitBest time to visit Luxembourg City: June–September. With good weather, September is a recommended month to visit.
| August | September | October | |
|---|---|---|---|
| Average temperature | ▼ 19°C | 15°C | ▼ 11°C |
| Highest temperature | ▼ 24°C | 20°C | ▼ 15°C |
| Lowest temperature | ▼ 14°C | 11°C | ▼ 8°C |
| Rainfall | ▲ 60 mm | 82 mm | ▲ 96 mm |
| Days with rain | → 11 d | 11 d | ▲ 14 d |
| Humidity | ▲ 70% | 81% | ▲ 87% |
| Sunshine hours per day | ▼ 11,2 h | 9,2 h | ▼ 6,1 h |
| Cloud cover | ▲ 22% | 27% | ▲ 44% |
| UV index (midday) | ▼ 8 | 6 | ▼ 3 |
| Day length | 14:23 | 12:36 | 10:45 |
| Our rating | Perfect | Good | Poor |
Temperature day by day in September mean + moving average
Rainfall day by day in September mm
UV index day by day in September midday value, clear-sky
Climate averages calculated from the ERA5 archive (8 years; sea temperature from marine reanalysis). UV estimated from solar elevation.
Other destinations in Europe
Data source
Global weather models — international forecasts
The weather for Luxembourg City is based on global weather models (ECMWF, GFS) and national meteorological institutes around the world. Forecasts update every hour; current measurements every 15 minutes. For destinations with a larger time difference from the UK, local time is shown above.