The best time to visit Düsseldorf is May, June and September. These months hit the comfortable sweet spot: May averages a high of 19.2 °C with 11 rain days, June reaches 23.4 °C, and September settles back to 20.8 °C with 11 rain days and plenty of sunshine along the Altstadt riverfront. July and August are warm and lively but fall into peak season, with school-holiday crowds and higher prices. Winter is the quiet low season — cool, grey and short on daylight, with December seeing just 2.9 hours of sunshine a day.
Best months MayJuneSeptember
Düsseldorf month by month
Average highs and lows (°C), 2016–2025. Highlighted bars are the best months.
| Month | High | Low | Rain days | Sun / day |
|---|---|---|---|---|
| January | 5.9 °C | 1.2 °C | 17 | 3.6 h |
| February | 8.4 °C | 2.1 °C | 13 | 5.3 h |
| March | 11.3 °C | 3.3 °C | 13 | 7.4 h |
| April | 14.9 °C | 5.6 °C | 11 | 9.6 h |
| May | 19.2 °C | 9.7 °C | 11 | 11.2 h |
| June | 23.4 °C | 14.2 °C | 12 | 11.6 h |
| July | 24.1 °C | 15.1 °C | 13 | 11.5 h |
| August | 24.4 °C | 15.5 °C | 12 | 10.7 h |
| September | 20.8 °C | 12.4 °C | 11 | 9.3 h |
| October | 15.7 °C | 9.4 °C | 14 | 6 h |
| November | 9.9 °C | 4.7 °C | 15 | 4.5 h |
| December | 7.1 °C | 2.8 °C | 16 | 2.9 h |
How the months are picked.A month qualifies when its average high sits in the comfortable 20–28 °C band (scored down towards 9 °C and 37 °C), rain days are few and sunshine hours are high — at least 78 % of the city's best-scoring month. July and August are then set aside as peak season (school-holiday crowds and prices) whenever at least three other months qualify; where summer is the only comfortable window they stay. Figures are ten-year averages (2016-01-01 to 2025-12-31) from ERA5 reanalysis data via Open-Meteo (CC BY 4.0) for the city centre coordinates.
When to go, and what to expect
Spring (Mar–May)
May is prime — mild, bright and fresh; ideal for walking the Altstadt and Rhine promenade.
Summer (Jun–Aug)
June is the pick; July and August suit those who want events despite the crush.
Autumn (Sep–Nov)
September is excellent — warm, golden and relaxed; skip damp November.
Winter (Dec–Feb)
Worth it only for the festive markets and Karneval; otherwise dark and wet.
Notable events
- February (peaking on Rose Monday)
- Karneval (Rosenmontag and the Altstadt street celebrations)
- July
- Größte Kirmes am Rhein (funfair on the Rhine)
- May or June
- Japan Day (Japan-Tag) with fireworks on the Rhine
- Late November to December
- Düsseldorf Christmas Markets in the Altstadt
Frequently asked
Is Düsseldorf too hot in August?
No — August is the warmest month but stays moderate at a 24.4 °C average high, comfortable rather than scorching. The main drawback is peak-season crowds, not heat.
What is the rainiest month in Düsseldorf?
January is the wettest by count, with 17 rain days, followed by December at 16. Spring and early autumn are drier, with 11 rain days in May and September.
Is winter worth visiting?
Only for a specific mood. December sees just 2.9 hours of sunshine a day and highs around 7.1 °C, so it's dark and damp — but the Altstadt Christmas markets and February's Karneval make it worthwhile for festive travellers.
Know when to go? Now decide where to stay — our Düsseldorf area guide →
Areas of Düsseldorf
Best time to visit near here
Sources
- Open-Meteo historical weather API — monthly climate normals, 2016–2025 (CC BY 4.0)
- ERA5 reanalysis (ECMWF / Copernicus) — the underlying temperature, precipitation and sunshine data
- ReasonStay methodology — how the best months are computed and checked
An independent guide to Düsseldorf — honest, verified, no invented data. Climate figures: ERA5 via Open-Meteo, 2016–2025 averages; the best months are computed from them, not opinion.