Weather in Stuttgart in January
Germany · 20-year averages, January
The month to avoid. January is the month most people should skip in Stuttgart. Highs sit at 3.8 °C and the day is short; this is an indoors-with-excursions month, not an outdoors-all-day one.
January ranks 12 of 12 — near the bottom of Stuttgart's year. September is the month that works, and the swing between the two is 58 points, which is a different holiday rather than a slightly better one.
This is persistent light rain rather than storms: 14 wet days but only 1 heavy ones. It rarely cancels anything outright, and it rarely fully clears either. A jacket beats an umbrella. Layers, and a genuinely waterproof outer — at 3.8 °C the difference between a good day and a miserable one is entirely down to what you are wearing.
What the averages hide
Averages flatten a month, and this one hides a few things: 20 nights drop below freezing, so anything left outside stays frozen; the day barely swings — 6 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest January day reached 13.3 °C and the coldest night fell to -16 °C, and the wettest single day dropped 26 mm — roughly 39% of the month's rain in one day.
January is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest January on record still delivered 121 mm against 22 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 67 mm average is a reasonable planning figure, not a promise.
Wind is light at 11.1 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 92%, which at 3.8 °C means damp rather than muggy — the kind of cold that gets into a coat and stays there.
How January sits in the year
Temperatures hold steady either side: 4.6 °C in December, 3.8 here, 5.5 in February. Nothing about the timing within the month matters much.
Daylight in January
January sits at the dark end of Stuttgart's year — 8.7 hours of daylight against 16.1 at midsummer, gaining 1 hours across the month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.
An inland climate
With no coast nearby, the year swings a fair way — 28.3 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.
How busy it gets
Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
January in Stuttgart versus nearby
If Stuttgart is one option among several, the nearby comparison is worth making. Frankfurt am Main is close enough to be a coin toss — within a degree on temperature, 2 days less rain. Colmar is close enough to be a coin toss — within a degree on temperature, 1 day less rain.
So: January is a compromise. September is 58 points better and is what Stuttgart is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.
Every month in Stuttgart
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 3.8 | -2.1 | 14 | 67 | 92 | 8.7 | 23 |
| February | 5.5 | -1.8 | 11 | 50 | 88 | 10.1 | 30 |
| March | 10.2 | 0.9 | 12 | 56 | 83 | 11.8 | 48 |
| April | 15.4 | 4.5 | 10 | 47 | 77 | 13.6 | 68 |
| May | 19.2 | 8.7 | 14 | 84 | 76 | 15.2 | 72 |
| June | 23.6 | 12.7 | 14 | 69 | 71 | 16.1 | 76 |
| July | 26.2 | 14.7 | 14 | 83 | 66 | 15.8 | 75 |
| August | 26 | 14.5 | 14 | 78 | 67 | 14.4 | 75 |
| September | 21.6 | 10.2 | 10 | 54 | 72 | 12.7 | 81 |
| October | 16.1 | 6.6 | 12 | 63 | 82 | 10.9 | 67 |
| November | 9.3 | 2.4 | 11 | 63 | 90 | 9.2 | 45 |
| December | 4.6 | -1 | 15 | 71 | 93 | 8.3 | 24 |
See all twelve months in Stuttgart, or where else to go in January.
Planning the rest of the trip
- Flight time to Stuttgart how long you are actually in the air
- Stuttgart time zone and the difference from home
- Days until your trip count down to the departure date