Climate averages 1991–2020
Sankt Gallen weather
in April.
A cool, wet month: the 7th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cool month in Sankt Gallen: daytime highs average 12.0°C and nights cool to about 2.1°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 102 mm of rain on roughly 15 days, which makes April a wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 35 min on an average April day.
The nearest other city in this atlas is Konstanz (30 km away). In April its highs average 13.6°C, 1.5°C warmer than Sankt Gallen, with 80 mm of rain.
Among the 8 cities listed in Switzerland, Sankt Gallen ranks 8th of 8 for the warmest April highs and 5th of 8 for the driest April (rainfall, lowest first). The mean April high of those 8 cities is 13.6°C; Sankt Gallen is 1.6°C cooler than that mean.
From April to May, average highs rise by 4.1°C to 16.1°C, and monthly rainfall rises from 102 mm to 155 mm.
The annual picture
April 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
Sankt Gallen climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 2.8°C-4.8°C | -4.8°C | 88 | 12.7 | 8.99 h |
| February | 3.9°C-4.7°C | -4.7°C | 80 | 11.8 | 10.210 h |
| March | 7.8°C-1.4°C | -1.4°C | 100 | 14.8 | 11.912 h |
| April, selected | 12.0°C2.1°C | 2.1°C | 102 | 14.5 | 13.614 h |
| May | 16.1°C7.0°C | 7.0°C | 155 | 17.2 | 15.115 h |
| June | 19.4°C10.7°C | 10.7°C | 172 | 17.4 | 15.916 h |
| July | 21.3°C12.6°C | 12.6°C | 174 | 17.5 | 15.516 h |
| August | 21.2°C12.7°C | 12.7°C | 175 | 16.8 | 14.314 h |
| September | 17.2°C9.2°C | 9.2°C | 127 | 13.7 | 12.613 h |
| October | 13.4°C5.6°C | 5.6°C | 103 | 12.9 | 10.911 h |
| November | 7.5°C0.4°C | 0.4°C | 103 | 12.7 | 9.49 h |
| December | 3.4°C-3.5°C | -3.5°C | 105 | 14.1 | 8.59 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
April in nearby cities
- Konstanz in AprilGermany · 30 kmHigh 13.6°C · Low 6.3°C · 80 mm rain
- Vaduz in AprilLiechtenstein · 33 kmHigh 13.6°C · Low 3.4°C · 126 mm rain
- Winterthur in AprilSwitzerland · 50 kmHigh 13.8°C · Low 4.0°C · 85 mm rain
- Zürich in AprilSwitzerland · 62 kmHigh 14.1°C · Low 4.2°C · 106 mm rain
- Luzern in AprilSwitzerland · 91 kmHigh 13.8°C · Low 3.9°C · 135 mm rain
- Villingen-Schwenningen in AprilGermany · 97 kmHigh 12.0°C · Low 2.8°C · 87 mm rain
- Ulm in AprilGermany · 118 kmHigh 13.7°C · Low 3.9°C · 62 mm rain
- Reutlingen in AprilGermany · 119 kmHigh 14.3°C · Low 4.2°C · 61 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 Sankt Gallen) is explained once on the Sankt Gallen year overview and on the Sources, method and limits page.