Luzern in August
6.0out of 10
Possible, with caveats
Mild: highs around 21°C. Very wet: about 18 rainy days.
21°CAvg high
13°CAvg low
18Rainy days (211 mm)
14:02 hDaylight
06:30Sunrise · 20:32 Sunset
Why this score
- Mild: highs around 21°C
- Very wet: about 18 rainy days
- Rain varies a lot between years (±4.1 days)
What to wear and pack
- Layers you can add or remove
- A light jacket for cooler evenings
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in August varies a lot between years (±4.1 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 3°C | -3°C | 117 mm | 14 | – | – | 3.6 |
| February | 4°C | -3°C | 112 mm | 13 | – | – | 4.0 |
| March | 8°C | 0°C | 126 mm | 15 | – | – | 4.4 |
| April | 12°C | 3°C | 135 mm | 15 | – | – | 5.1 |
| May | 16°C | 7°C | 188 mm | 19 | – | – | 5.1 |
| June | 19°C | 10°C | 200 mm | 18 | – | – | 5.7 |
| July | 21°C | 12°C | 212 mm | 18 | – | – | 6.0 |
| August | 21°C | 13°C | 211 mm | 18 | – | – | 6.0 |
| September | 17°C | 10°C | 165 mm | 16 | – | – | 5.8 |
| October | 13°C | 6°C | 130 mm | 14 | – | – | 5.5 |
| November | 7°C | 2°C | 134 mm | 14 | – | – | 4.4 |
| December | 3°C | -2°C | 131 mm | 14 | – | – | 3.7 |
Frequently asked questions
How hot is Luzern in August?
Daytime highs average 21°C and nights about 13°C.
When is the best time to visit Luzern?
The best months are July, August, September, June.