Bad Mergentheim Weather in September
Average highs run from 23°C on September 1 to 18°C on September 30, and lows from 11°C to 8°C. Normal precipitation for the month is 51 mm over about 9 wet days.
September day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
September at a glance
- Average high
- 20°C
- Average low
- 9°C
- Precipitation
- 51 mm
- Daylight
- 13 h 27 min to 11 h 43 min
- Cloud cover
- 66%
- Humidity
- 72%
- Dew point
- 9°C
- Wind
- 13.3 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 23°C | 11°C | 32% | ||
| Sep 2 | 23°C | 11°C | 32% | ||
| Sep 3 | 22°C | 11°C | 31% | ||
| Sep 4 | 22°C | 11°C | 32% | ||
| Sep 5 | 22°C | 11°C | 34% | ||
| Sep 6 | 22°C | 11°C | 35% | ||
| Sep 7 | 22°C | 10°C | 35% | ||
| Sep 8 | 22°C | 10°C | 34% | ||
| Sep 9 | 22°C | 10°C | 34% | ||
| Sep 10 | 21°C | 10°C | 34% | ||
| Sep 11 | 21°C | 10°C | 34% | ||
| Sep 12 | 21°C | 10°C | 33% | ||
| Sep 13 | 21°C | 9°C | 33% | ||
| Sep 14 | 21°C | 9°C | 32% | ||
| Sep 15 | 21°C | 9°C | 32% | ||
| Sep 16 | 21°C | 9°C | 32% | ||
| Sep 17 | 20°C | 9°C | 32% | ||
| Sep 18 | 20°C | 9°C | 33% | ||
| Sep 19 | 20°C | 9°C | 32% | ||
| Sep 20 | 20°C | 8°C | 32% | ||
| Sep 21 | 20°C | 8°C | 29% | ||
| Sep 22 | 19°C | 8°C | 29% | ||
| Sep 23 | 19°C | 8°C | 30% | ||
| Sep 24 | 19°C | 8°C | 31% | ||
| Sep 25 | 19°C | 8°C | 32% | ||
| Sep 26 | 19°C | 8°C | 33% | ||
| Sep 27 | 19°C | 8°C | 34% | ||
| Sep 28 | 18°C | 8°C | 36% | ||
| Sep 29 | 18°C | 8°C | 38% | ||
| Sep 30 | 18°C | 8°C | 39% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+2).
- September 1
- sunrise 6:37 AM, sunset 8:04 PM
- September 30
- sunrise 7:19 AM, sunset 7:02 PM
Other months
Sources
Records: NOAA GHCN-Daily, station GME00126718, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.