Climate averages 1991–2020
Heilbronn weather
in March.
A cool, moderately wet month: the 8th warmest and the joint 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a cool month in Heilbronn: daytime highs average 10.7°C and nights cool to about 2.1°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 76 mm of rain on roughly 13 days, which makes March a moderately wet month (the joint 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 51 min on an average March day.
The nearest other city in this atlas is Ludwigsburg (27 km away). In March its highs average 10.0°C, 0.6°C cooler than Heilbronn, with 71 mm of rain.
Among the 120 cities listed in Germany, Heilbronn ranks joint 5th of 120 for the warmest March highs and 109th of 120 for the driest March (rainfall, lowest first). The mean March high of those 120 cities is 9.3°C; Heilbronn is 1.3°C warmer than that mean.
From March to April, average highs rise by 4.6°C to 15.3°C, and monthly rainfall falls from 76 mm to 52 mm.
The annual picture
March in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Heilbronn climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 4.8°C-0.8°C | -0.8°C | 76 | 12.3 | 8.79 h |
| February | 6.4°C-0.7°C | -0.7°C | 67 | 11.4 | 10.110 h |
| March, selected | 10.7°C2.1°C | 2.1°C | 76 | 12.5 | 11.912 h |
| April | 15.3°C5.5°C | 5.5°C | 52 | 10.4 | 13.714 h |
| May | 19.2°C9.8°C | 9.8°C | 79 | 13.1 | 15.315 h |
| June | 22.5°C13.4°C | 13.4°C | 66 | 12.2 | 16.116 h |
| July | 24.7°C15.5°C | 15.5°C | 74 | 12.7 | 15.816 h |
| August | 24.6°C15.4°C | 15.4°C | 62 | 11.0 | 14.414 h |
| September | 20.0°C11.6°C | 11.6°C | 63 | 10.2 | 12.713 h |
| October | 14.9°C7.6°C | 7.6°C | 72 | 11.8 | 10.811 h |
| November | 9.0°C3.3°C | 3.3°C | 72 | 11.6 | 9.29 h |
| December | 5.4°C0.4°C | 0.4°C | 90 | 14.6 | 8.38 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
March in nearby cities
- Ludwigsburg in MarchGermany · 27 kmHigh 10.0°C · Low 1.2°C · 71 mm rain
- Stuttgart in MarchGermany · 40 kmHigh 10.4°C · Low 1.4°C · 67 mm rain
- Esslingen in MarchGermany · 45 kmHigh 10.5°C · Low 1.4°C · 67 mm rain
- Pforzheim in MarchGermany · 47 kmHigh 10.5°C · Low 2.0°C · 70 mm rain
- Heidelberg, Germany in MarchGermany · 49 kmHigh 10.8°C · Low 2.4°C · 75 mm rain
- Karlsruhe in MarchGermany · 61 kmHigh 10.9°C · Low 2.5°C · 68 mm rain
- Mannheim in MarchGermany · 67 kmHigh 10.8°C · Low 2.3°C · 57 mm rain
- Ludwigshafen am Rhein in MarchGermany · 68 kmHigh 10.9°C · Low 2.3°C · 57 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Heilbronn) is explained once on the Heilbronn year overview and on the Sources, method and limits page.