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Baden-Baden sits in the Rhine valley at the foot of the Black Forest, at about 160 to 280 m elevation. The climate is a mild, warm-temperate type (Cfb) with an annual average of 10.8°C (51.4°F) and roughly 1,223 mm (48 in) of rain spread over about 115 rainy days a year. July is the warmest month at 20.1°C (68°F) on average; January is the coldest at 1.7°C (35°F). The thermal springs that built the town’s reputation run at about 68°C all year, so the bathhouses stay busy through every season.
Baden-Baden Weather in Winter (December to February)
Winter is cool but rarely extreme. January averages 1.7°C (35°F), with nighttime lows around -1.1°C (30°F) and daytime highs of 4.6°C (40°F). December is the wettest month of the year at 123 mm (4.8 in) across 12 rainy days, and snow falls on a handful of days, usually melting quickly in the valley. Humidity sits around 82 percent, and sunshine is limited to about 4 hours a day. This is when the thermal baths and the Christmas market carry the visit. Check our best time to visit Baden-Baden guide before you book, since December prices climb around the holidays.
Baden-Baden Weather in Spring (March to May)
Spring warms up fast. March averages 6.0°C (42.8°F), April 10.4°C (50.8°F), and May reaches 14.6°C (58.3°F) with afternoon highs near 19°C (66°F). May is the wettest spring month at 114 mm (4.5 in) over 11 rainy days, so pack a light rain layer. Humidity drops from 75 percent in March to 69 percent in April, and sunshine climbs to 9 hours a day. The Lichtentaler Allee comes into bloom in late April, and the outdoor cafés reopen. It’s a good window for the things to do in Baden-Baden list, most of which are open by May.
Baden-Baden Weather in Summer (June to August)
Summer is warm without the heat extremes of other German cities. July averages 20.1°C (68°F) with highs of 24.4°C (75.9°F) and lows of 15.3°C (59.5°F). August is nearly identical at 19.7°C (67.4°F) average. Rainfall runs 96 to 111 mm per month, and humidity is at its lowest, 67 to 69 percent. June and July are the sunniest months at 11 hours a day. The horse-racing season at Iffezheim and open-air concerts fill the calendar; see the events and festivals in Baden-Baden page for exact dates. Evenings cool to the mid-teens, so bring a light jacket.
Baden-Baden Weather in Autumn (September to November)
Autumn starts mild and turns crisp. September averages 15.7°C (60.3°F), October 11.3°C (52.4°F), and November 6.1°C (43.1°F). Rainfall holds steady at 93 to 104 mm a month, and humidity climbs back to 85 percent by November. The autumn foliage around the Baden-Baden neighborhoods and the Rebland vineyards peaks in mid-October. October’s Große Woche racing festival is a highlight, and by November the outdoor pools have closed while the indoor thermal baths stay open.
Baden-Baden Weather by Month: The Full Breakdown
The table below lists average high and low temperatures, rainfall, rainy days, and daily sunshine hours for each month. For where to sleep near the baths and casino, see our where to stay in Baden-Baden guide, and for arrival details, the Baden-Baden travel tips page covers airports and trains.
| Month | Avg High | Avg Low | Rain (mm) | Rainy Days | Sun Hours |
|---|---|---|---|---|---|
| January | 4.6°C (40°F) | -1.1°C (30°F) | 108 | 10 | 4 |
| February | 5.9°C (43°F) | -1.1°C (30°F) | 89 | 9 | 5 |
| March | 10.4°C (51°F) | 1.6°C (35°F) | 102 | 10 | 6 |
| April | 15.2°C (59°F) | 5.3°C (42°F) | 82 | 10 | 9 |
| May | 19.0°C (66°F) | 9.7°C (49°F) | 114 | 11 | 9 |
| June | 22.7°C (73°F) | 13.3°C (56°F) | 106 | 10 | 11 |
| July | 24.4°C (76°F) | 15.3°C (60°F) | 111 | 11 | 11 |
| August | 24.2°C (76°F) | 15.1°C (59°F) | 96 | 10 | 10 |
| September | 20.0°C (68°F) | 11.5°C (53°F) | 93 | 9 | 7 |
| October | 15.3°C (60°F) | 7.7°C (46°F) | 95 | 10 | 6 |
| November | 9.3°C (49°F) | 3.2°C (38°F) | 104 | 10 | 4 |
| December | 5.5°C (42°F) | 0.3°C (33°F) | 123 | 12 | 4 |
For the overall Baden-Baden travel guide with seasonal highlights and quick facts, head back to the main city page.
